EATON ELECTRICAL SERVICES AND SYSTEMS 210 WINDY …

EATON ELECTRICAL SERVICES AND SYSTEMS 210 WINDY POINT DRIVE

GLENDALE HEIGHTS, IL 60139

G.O. No.: MCG0007478.007

SHORT CIRCUIT, PROTECTIVE DEVICE, COORDINATION,

& ARC FLASH STUDY

For NEW MEDIUM VOLTAGE SWITCHGEAR

JESSE BROWN HOSPITAL VETERANS ADMINISTRATION

CHICAGO, IL

JUNE 2017

Electrical Services & Systems 210 Windy Point Drive

Glendale Heights, IL 60139 (630) 260-6281

GENERAL ORDER NUMBER: MCG0007478.007 REPORT NUMBER: TQSI0007478A.1 SUBMITTED BY: BRAD W ENGEL, PE

www.EatonElectrical.com

SHORT-CIRCUIT, PROTECTIVE DEVICE COORDINATION, & ARC FLASH INCIDENT

ENERGY ANALYSIS FOR

NEW MEDIUM VOLTAGE SWITCHGEAR AT JESSE BROWN HOSPITAL

VETERANS ADMINISTRATION CHICAGO, IL

http://www.eatonelectrical.com/

JESSE BROWN VA i

REVISION HISTORY

Rev # Issued Revision / Modification Description 0 6/2017 Initial Study Report Issue

JESSE BROWN VA ii

TABLE OF CONTENTS

EXECUTIVE SUMMARY ......................................................................................... 1-1 1.01.1 General ......................................................................................................... 1-1 1.2 Objectives ..................................................................................................... 1-1 1.3 Results and Recommendations .................................................................... 1-1

SHORT-CIRCUIT ANALYSIS .................................................................................. 2-5 2.02.1 General ......................................................................................................... 2-5 2.2 Objectives ..................................................................................................... 2-7 2.3 Equipment Evaluation ................................................................................... 2-8 2.4 Short-Circuit Results ..................................................................................... 2-9

PROTECTIVE DEVICE COORDINATION STUDY .................................................. 3-1 3.03.1 General ......................................................................................................... 3-1 3.2 Objectives ..................................................................................................... 3-1 3.3 Codes and Standards ................................................................................... 3-1 3.4 Coordination Data ......................................................................................... 3-2 3.5 Coordination Results .................................................................................... 3-2 3.6 Time-Current Characteristic Plots ................................................................ 3-3

RECOMMENDED PROTECTIVE DEVICE SETTINGS ........................................... 4-1 4.0

ARC FLASH INCIDENT ENERGY ANALYSIS ....................................................... 5-1 5.05.1 General ......................................................................................................... 5-1 5.2 Objectives ..................................................................................................... 5-2 5.3 Arc Flash Incident Energy Analysis Results ................................................. 5-3 5.4 Arc Flash Summary Table Heading Descriptions ......................................... 5-4 5.5 Arc Flash Labels ........................................................................................... 5-5 5.6 Arc Flash Incident Energy Analysis Recommendations ............................... 5-7

SYSTEM DATA ........................................................................................................ 6-1 6.0

SHORT-CIRCUIT INPUT REPORT ......................................................................... 7-1 7.0

SHORT-CIRCUIT RESULTS ................................................................................... 8-1 8.0

UTILITY DATA ......................................................................................................... 9-1 9.0

APPLICABLE CODES AND STANDARDS .......................................................... 10-1 10.0

ONE-LINE DIAGRAM INDEX ................................................................................ 11-1 11.0

JESSE BROWN VA 1-1

EXECUTIVE SUMMARY 1.0

1.1 General This summary report contains the results of analyses performed on the medium voltage distribution system for the Jesse Brown VA Hospital in Chicago, IL. The purpose of this study is to evaluate new electrical equipment provided for this facility. System data and necessary modeling assumptions are provided under Section 6.0.

1.2 Objectives

1. Short-Circuit Analysis

Perform a short-circuit study on the electrical distribution system shown in order to determine the available fault current at pertinent locations throughout the distribution system. The scope of the study includes:

• Analysis begins at the incoming 12.47 kV primary of the utility service transformers, continues through the new medium voltage switchgear, and the first protective device downstream of the switchgear.

The available fault currents determined by the short-circuit study will be used in the electrical distribution analyses.

2. Equipment Evaluation

Evaluate the short-circuit ratings of protective devices and other distribution equipment found at the locations shown in Section 11.0.

3. Coordination Study

Develop time-current coordination plots to derive coordinated settings for new protective devices.

4. Arc Flash Analysis

Perform an arc flash incident energy analysis per NFPA 70E on the electrical distribution system as per Eaton’s scope of work.

An incident energy analysis is defined by NFPA 70E to be a component of an arc flash risk assessment used to predict the incident energy of an arc flash for a specified set of conditions.

5. Recommendations

Provide specific recommendations for improving the electrical distribution system performance and correcting any deficiencies found by the studies.

1.3 Results and Recommendations

1. Short-Circuit Study

The system was modeled for worst-case fault currents. Short-circuit currents were calculated for a three-phase bolted fault and single-line-to-ground fault at each bus shown on the one-line diagram found in Section 11.0. See Section 2.0, Section 7.0, and Section 8.0 for more information.

JESSE BROWN VA 1-2

2. Equipment Evaluation

The Equipment Evaluation is based on the power system worst-case short-circuit current configuration. The short-circuit ratings of protective devices and other distribution equipment are evaluated in Section 2.0, Table 2.1.

In summary of Table 2.1, all equipment included in this study has passed the equipment evaluation.

The short-circuit withstand ratings of low voltage disconnect switches are not evaluated in this study. Care should be taken in order to ensure that these devices are applied within their UL listed short-circuit withstand ratings. The typical withstand ratings for Cutler-Hammer disconnect switches (safety switches) range from 10,000A to 200,000A for certain fused types.

See Section 2.0 for detailed analysis and evaluation results.

3. Coordination Study

The time-current coordination plots of the protective overcurrent devices are shown in Section 3.0. In developing the device settings, consideration was given to the isolation of faults, protection of cables, and protection of transformers.

Efforts were made to provide the best coordination possible with the protective devices supplied under this contract. It should be understood that coordination between two instantaneous trip units cannot be achieved for fault levels above the instantaneous pickup of the upstream device. There is some overlapping of curves that cannot be avoided.

In summary of the coordination study, the following recommended changes would maximize coordination while maintaining adequate protection:

• Coordination recommendation and comments are in Section 3.5

All of the adjustable low voltage electronic trip and thermal magnetic circuit breakers and medium voltage equipment should be tested and adjusted according to the recommended settings given in Section 4.0.

4. Protective Device Settings

Settings for the protective devices supplied by Eaton should be set as shown and recommended in Section 4.0.

The referenced plot illustrates the coordination of the listed device with the relevant “upstream” and “downstream” protective devices.

5. Arc Flash Incident Energy Analysis

Details of the arc flash incident energy analysis are shown in Section 5.0. Please note for this study, the arc flash hazard has been calculated by performing an incident energy analysis. The results of this study can be used by qualified workers to determine the arc flash boundary and select appropriate arc flash PPE as part of an overall arc flash risk assessment. NFPA 70E Table H.3(b) provides guidance on the selection of arc rated clothing and other PPE based on the results of an incident energy analysis. It is the responsibility of the employer and qualified person(s) to conduct an overall arc flash risk assessment as detailed in NFPA 70E-2015 Article 130.5 before the commencement of work on electrical equipment. The risk

JESSE BROWN VA 1-3

associated with performing energized electrical work will vary based on the work being performed as well as the condition of the equipment and other factors that can be best determined by a qualified person in the field.

In summary, there are several locations that have incident energy levels that are above 40 cal/cm2, refer to Section 5.0 for detailed information.

According to NFPA 70E Article 130.7(A), Informational Note 3, it may be necessary to place greater emphasis on establishing an electrically safe work condition when working within the limited approach boundary at locations where the incident energy exceeds 40 cal/cm2. The greater emphasis is due to additional hazards created from blast pressure associated with a possible arc. The PPE requirements outlined in NFPA 70E only address the thermal hazards associated with arc flash events and do not provide protection against other possible physical trauma resulting from an arc flash event. See NFPA 70E Article 120 for details on establishing an electrically safe work condition.

a) Reducing Incident Energy Levels: The calculated incident energy at a particular location is dependent on three main factors: short-circuit current, distance, and time. These three factors directly affect the incident energy in the following manner:

Short-circuit current: The short-circuit current for a given power system is dependent on the system impedance and source fault current, and cannot be easily reduced.

Distance: IEEE Std 1584™ provides a table with typical working distances. Increasing the working distance reduces the amount of incident energy that reaches the worker; however it becomes difficult to perform many work tasks with an increased working distance, therefore, this is not an optimal solution for most cases.

Time: The incident energy decreases when reducing the exposure time of the arc. This exposure time is directly related to the clearing time of the protective device(s) which feed the fault location.

Based on the preceding summary, arc flash mitigation techniques are most effective and feasible when they involve reducing the arc exposure time. In many locations, the setting of the protective device can be adjusted in order to decrease the interrupting time, resulting in a decreased incident energy. However, in this study, settings for protective devices have not been adjusted to reduce incident energy if the chance of nuisance trips within critical circuits is introduced.

NFPA 70E requires that the arc flash analysis be updated:

• Every five years (at minimum)

• When the electrical system is modified, including renovations, additions, or subtractions to the system

6. Testing and Preventative Maintenance

The 2015 edition of NFPA 70E Section 205.3 and 205.4 requires that regularly scheduled testing and preventative maintenance be performed to ensure that the electrical distribution equipment continues to perform at an optimum level. Testing

JESSE BROWN VA 1-4

should entail primary injection testing of all circuit breakers to verify proper tripping ranges, contact resistance testing, insulation resistance testing and complete switchgear and transformer cleaning and inspection. Refer to NFPA-70B for specific types of testing and interval recommendations. The industry generally performs breaker testing every 3-5 years.

JESSE BROWN VA 2-5

SHORT-CIRCUIT ANALYSIS 2.0

2.1 General The short-circuit study determines the fault currents that flow in the system during various fault conditions. A system model was created using SKM Systems Analysis software. The calculated fault currents are used in the device evaluation and coordination studies. See Section 7.0 and Section 8.0 for the computer generated input data and output data. NEC-2014, Article 110.24(A) requires that service entrance equipment is labeled with the following pieces of information:

• Maximum available fault current

• Date on which the fault current was calculated

Article 110.24(B) adds that if there is a modification that may change this fault current value, it must be recalculated. The field marking must be updated to reflect the new value of maximum fault current.

Separate “Z” (complex), “X” (reactive), and "R" (resistive) networks are used for the short-circuit analysis. Complex network reduction and the relationship E/Z are used to calculate the fault current magnitude and angle at each faulted bus. The complex equivalent circuit impedance, Z, is calculated by the reduction of the “Z” (complex) network. The X/R ratios calculated for each fault condition are based on the separate reduction of the X and R networks. These X/R ratios are used for the calculation of fault duty multipliers, to evaluate the short-circuit ratings of system components.

The software is capable of generating three types of short-circuit reports for both balanced (three-phase bolted) and unbalanced (line-to-ground) faults. The reports that are generated depend on the system that is being evaluated.

The three types of short-circuit reports are:

• Fault Report (for low voltage)

• Momentary Duty Report (for medium voltage)

• Interrupting Duty Report (for medium voltage)

1. Fault Report

The fault currents reported in the “Fault Report” are applicable to low voltage devices and components. The fault currents calculated in this report are based on the contribution data derived from IEEE Std C37.13™. The fault currents are calculated as follows:

• Motor and generator subtransient reactance values (Xd”) are adjusted per the first cycle duty multipliers described in IEEE Std 141™.

• The complex equivalent circuit impedance, Z, is calculated by network reduction of the “Z” (complex) network.

• The momentary symmetrical current = E/Z.

• The X/R ratio is equal to the equivalent circuit reactance, X, divided by the equivalent circuit resistance, R. As discussed above, X is calculated by the reduction of the “X” (reactive) network and R is calculated by the reduction of the “R” (resistive) network.

JESSE BROWN VA 2-6

Multiplying factors are determined, and used to adjust the calculated symmetrical fault current. The adjusted current is used to evaluate low voltage protective devices. Low voltage output algorithms and output reports reflect NEMA AB-1 molded case breaker de-rating multipliers. Breakers are de-rated for circuits where the power factor is lower than the NEMA test circuit (higher X/R ratio). The multipliers adjust the symmetrical fault current to the value associated with the systems fault point X/R ratio. The adjusted value listed on the report may then be compared directly with the manufacturer's published interrupting rating.

2. Momentary Duty Report

The “Momentary Duty Report” contains the calculated fault currents that occur during the first half-cycle of the fault. The momentary fault currents are used to evaluate medium and high voltage fuses, and the “closing and latching” capability (momentary rating) of medium and high voltage breakers. The fault currents reported in the “Momentary Duty Report” are calculated as follows:

• Motor and generator subtransient reactance values (Xd”) are adjusted per the first cycle duty multipliers described in IEEE Std 141.


• The momentary symmetrical current = E/Z.

• The X/R ratio reported is equal to the equivalent circuit reactance, X, divided by the equivalent circuit resistance, R. As discussed above, X is calculated by the reduction of the “X” (reactive) network and R is calculated by the reduction of the “R” (resistive) network.

• The momentary asymmetrical current is calculated and reported in two different ways, once as “sym*1.6” and again as “momentary based on X/R”. The “sym*1.6” value is the momentary symmetrical current multiplied by 1.6. The “momentary based on X/R” value is the momentary symmetrical current multiplied by

( )( )e RX21 2+ − π

3. Interrupting Duty Report

The fault currents reported in the “Interrupting Duty Report” are used to evaluate the interrupting rating of medium- and high-voltage breakers. The interrupting symmetrical current is calculated as follows:

• Motor and generator subtransient reactance values (Xd”) are adjusted per the interrupting duty multipliers described in IEEE Std 141.


• The interrupting symmetrical current = E/Z.

• The X/R ratio reported is equal to the equivalent circuit reactance, X, divided by the equivalent circuit resistance, R. As discussed above, X is calculated by the reduction of the “X” (reactive) network and R is calculated by the reduction of the “R” (resistive) network.

JESSE BROWN VA 2-7

• The calculated X/R ratio is used to determine the minimum contact parting time multiplying factors for 2, 3, 5, and 8 cycle breakers. The multiplying factors are based on IEEE Std C37.5™ and IEEE Std C37.010™ standards. The multiplying factors are applied to the interrupting symmetrical current in order to calculate the RMS short-circuit current interrupting duty for 2, 3, 5, and 8 cycle breakers. This duty is compared to the symmetrical current interrupting rating of the circuit breaker. NACD (No AC Decrement) ratios are calculated with consideration of generator "Local" and "Remote" contributions as outlined in IEEE Std C37.010™.

• Motor and generator impedance multipliers for the short-circuit calculations are summarized in the following table. This is based on the recommended combination network for comprehensive multi-voltage system calculations (from IEEE Std 141:

Machine Type Impedance

(First Cycle Duty) Impedance

(Interrupting Duty)

Turbine generators, Condensers, Hydrogenerators with amortisseur windings

1.0 Xd" 1.0 Xd"

Synchronous motors 1.0 Xd" 1.5 Xd"

Induction motors > 1000 hp at speed ≤ 1800 RPM, or > 250 hp at 3600 RPM.

1.0 Xd" 1.5 Xd"

Induction motors ≥ 50 hp not covered above. 1.2 Xd" 3.0 Xd"

Induction motors < 50 hp 1.67 Xd" Neglect

Note: Xd" is the subtransient reactance of the rotating machine.

2.2 Objectives The objective of the short-circuit analysis is to calculate the maximum short-circuit currents produced by balanced three-phase and unbalanced faults at each bus shown on the one-line diagram.

1. Short-Circuit System Model

The system was modeled for worst-case fault currents. Short-circuit currents were calculated for a three-phase bolted fault and single-line-to-ground fault at each bus shown on the study one-line diagram.

a) Evaluated Short-Circuit Cases:

The following short-circuit study cases were evaluated:

• Study Case No. 1 – Maximum Utility Fault current with SW SS MANUAL XFR A and BRK MVA (11A) open.

JESSE BROWN VA 2-8

• Study Case No. 2 – Eighty Percent of Maximum Utility Fault current with SW SS MANUAL XFR A, BRK MVA (11A) and BRK MV TIE A (7D) open.

2.3 Equipment Evaluation The purpose of the equipment evaluation is to compare the maximum calculated short-circuit currents to the short-circuit ratings of protective devices. The comparison is made in order to determine if the device can interrupt or withstand the available fault currents of the electrical system to which the device is applied, as required by NEC Articles 110.9 and 110.10. The device evaluation follows the evaluation procedures outlined in IEEE Std C37.13, IEEE Std C37.010, IEEE Std C37.5, IEEE Std C37.41™, IEEE Std 1015™, and applicable ANSI, NEMA, and UL standards.

The results of the short-circuit equipment evaluation are summarized in Table 2.1 and Table 2.2. The tables indicates “Bus I.D.” (corresponds to bus designations used in the one-line diagram, “Manufacturer”, “Status” (Pass, fail, unknown, or marginal), “Type” (equipment category), “Equip Volts”, calculated short-circuit duty, the equipment short-circuit rating, the series rating (if applicable), and the maximum duty rating.

The maximum duty rating is calculated by:

100..

..×

RatingCDeviceSdutyCS

If the short-circuit rating of a device is not known, and/or short-circuit rating information is not available, a Minimum Required short-circuit rating is listed. All short-circuit current values are reported in units of kA.

1. For low voltage devices:

The calculated short-circuit duty is reported under “Calc Isc (kA)" and the device short-circuit rating is reported under "Equip Isc (kA)". The calculated duty has been adjusted accordingly per the system X/R and device test X/R.

2. For medium/high voltage breakers:

The calculated interrupting short-circuit duty is reported under "Calc Isc (kA)" and the breaker short-circuit interrupting rating is reported under "Equip Isc (kA)". The interrupting duty has been adjusted per multiplying factors based on the breaker clearing time and system X/R. The calculated momentary duty (i.e. close-and-latch duty) is reported under "Calc Mom (kA)". The breaker momentary (i.e. close-and-latch) rating is reported under "Equip Msc (kA)".

3. For medium/high voltage fuses, switches, and motor starters:

The calculated momentary symmetrical short-circuit duty is reported under "Calc Isc (kA)" and the device's momentary symmetrical short-circuit rating is reported under "Equip Isc (kA)". The calculated momentary asymmetrical duty is reported under "Calc Mom (kA)". The device's momentary asymmetrical short-circuit rating is reported under "Equip Mom (kA)". -

JESSE BROWN VA 2-9

2.4 Short-Circuit Results Information used in modeling the power system to provide conservative, worst-case results is listed in Section 6.0. The results of the short-circuit analysis, including calculated branch contributions, are provided under Section 8.0. The one-line diagram with referenced bus identification are included in Section 11.0.

JESSE BROWN VA 2-10

Table 2.1 – Low-Voltage Equipment Evaluation (SKM)

Bus I.D. Manufacturer Status Type Bus Calc Equip Rating % Voltage (V) Isc (kA) Isc (kA) SWBD PARKING GARAGE

SQUARE D Pass LV Panelboard 480 18.49 (*N1)

100.00 18.49

SWBD VBA SQUARE D Pass LV Panelboard 480 23.59 65.00 36.28 SWGR SUB #8

CUTLER-HAMMER

Pass (*N3)

LV Switchgear 208 38.24 85.00 44.99

(*N1) System X/R higher than Test X/R, Calc Isc (kA) modified based on low voltage factor.

Table 2.2 – Medium-Voltage Equipment Evaluation (SKM)

Bus I.D. Manufacturer Status Type Bus Calc Equip Isc Rating %

Calc Equip Mom Rating %

Voltage (V) Isc (kA) Isc (kA) Mom (kA) Mom (kA) SWGR MV A

CUTLER-HAMMER

Pass MV Switchgear 4160 22.24 63.00 35.30 30.53 100.80 30.28

SWGR MV B

CUTLER-HAMMER

Pass MV Switchgear 4160 22.24 63.00 35.30 30.53 100.80 30.28

(*N1) System X/R higher than Test X/R, Calc Isc (kA) modified based on low voltage factor.

JESSE BROWN VA 3-1

PROTECTIVE DEVICE COORDINATION STUDY 3.0 3.1 General

The protective device coordination study determines overcurrent protective relay and circuit breaker settings in order to provide an optimal compromise between protection and selectivity.

3.2 Objectives Using the appropriate maximum fault currents, the time-current coordination curves were plotted as operating time versus current magnitudes to show protective device tripping and/or clearing characteristics and coordination among these devices.

Consideration was given to provide both selective isolation of faults and maximum protection of equipment such as cables, transformers, motors, etc.

To achieve the optimum protection and selectivity, the following guidelines were followed throughout the study:

1. Ideally, the settings of any overcurrent device should be high enough to permit the continuous full-load operating capacity of the cables and the equipment they supply, and to ride through system temporary disturbances such as in-rush current. On the other hand, the settings should be low enough to provide overload and short-circuit protection under minimum fault conditions.

2. Considering any two protective devices in series:

• The maximum available fault current at the downstream device determines the upper limit of the coordination range between these two devices.

• The minimum available fault current at the downstream device or the pick-up setting of the upstream device determines the lower limit of the coordination range.

• Series instantaneous devices do not coordinate unless there is sufficient impedance between the two devices.

• When plotting coordination curves, certain time intervals must be maintained between the curves in order to ensure correct selectivity. These time intervals vary, depending on the device types. In general, however, the following must be taken into consideration when determining the appropriate time separation interval: Breaker clearing time, relay tolerances, induction disk over-travel, and a reasonable safety margin for error.

3.3 Codes and Standards Protective device coordination was performed in accordance with IEEE Std 242™. Minimum guidelines for equipment protection, as outlined in the National Electrical Code (NEC) and applicable standards of the American National Standards Institute (ANSI), were followed.

Applicable requirements are summarized below.

1. Cables

Power cables require overload and short-circuit protection in order to meet the requirements stated in NEC Article 240, and IEEE Std 242. The NEC further

JESSE BROWN VA 3-2

requires that the ampacity of low voltage cable (0-2000 Volts) be determined by NEC Article 310.15. Cable de-rating based upon ambient temperature and the number of current carrying conductors in a raceway must also be applied. Medium voltage cable (2001-35,000 Volts) ampacity is defined by NEC Articles 240.100(A) and 310.60.

2. Transformers

A transformer is recommended to have protective devices on both primary and secondary side in order to meet the basic protection requirements for overloads and short-circuit withstand values. However, a transformer is permitted to be protected by only a primary side device if it meets the exceptions listed in NEC Article 240.4(F). In addition, the transformer protective devices must be able to withstand magnetizing inrush currents without tripping.

NEC protection requirements for transformers: Overcurrent devices should be selected, and settings should be recommended to provide overcurrent protection in accordance with NEC Article 450.3. Paragraph (A) specifies that transformers over 600 V comply with Table 450.3(A). Paragraph (B) specifies that transformers less than 600 V comply with Table 450.3(B).

Short-circuit thermal limits for transformers: The primary devices should be set on the basis that the transformers have short-circuit withstand capabilities as defined by IEEE Std C57.109™.

3. Motors

The motors should have appropriate protective devices to meet the basic protection requirements for overloads and fault current withstand values. In addition, the motor short-circuit and ground fault protective devices should be set to ride through motor starting current.

3.4 Coordination Data Please see Section 6.0 for a complete list of data and assumptions that were used in modeling the power system to provide conservative, worst-case results. Please note that complete information regarding the system model used for the computer simulation is included in Section 7.0.

3.5 Coordination Results As shown on the time-current plots, each device curve is tagged with an arrow and label referencing its location on the plot's individual representative one-line diagram. This label also references the device to its specific manufacturer information, including ratings and settings, as indicated in the text box on each plot. The device time-current characteristics are truncated at maximum through-fault current for a downstream fault.

Efforts were made to provide the best coordination possible with the protective devices supplied under this contract. Areas where breaker trip curves overlap indicate areas of possible non-selective breaker operation. Where possible, efforts were made to reduce non-selective breaker operation while maintaining adequate system protection. In some cases, because of device limitations, little can be done to improve device selectivity. Such device limitations include the fixed operating characteristic of a fuse, the built-in instantaneous or instantaneous “over-ride”

JESSE BROWN VA 3-3

elements of molded case circuit breakers, and the limited instantaneous trip range of trip units with an instantaneous trip function.

In cases involving redundant protective devices, non-selective breaker operation is of little or no concern. Protective devices are redundant if, regardless of which device opens, the same system outage occurs. Often, in order to improve overall system protection and coordination, redundant devices are intentionally set to overlap (i.e. non-selectively coordinate with) one another.

Adequate coordination is achieved using the recommended protective devices, with settings and ratings as listed in Section 4.0. The recommended adjustments would maximize coordination in an attempt to allow the various downstream devices to isolate faults without operation of the upstream devices. Although instantaneous trip devices provide the highest degree of protection, when applied in series they compromise selectivity at high-magnitude fault currents.

The following issues are noted while performing the coordination study:

1. ComEd would only let the long time pickup for REL MVA (10B) MAIN be set at 3.25(1300 A primary). Thus the full capacity of the switchgear can not be utilizated at this time. This can be seen in TCC MVA (10D).

2. There is miscoordination between the curves of REL ESG-F2, REL MVA (11A), and REL MVA (10B) MAIN. This can be seen in TCC MVA (11A).

3. There is miscoordination between the curves of REL MVA (13D) and FU SUB #11 A. This miscoordination can not be avoided if coordination is to be maintained with REL MVA (10B) MAIN. This can be seen in TCC MVA (13D) #1.

4. There is miscoordination between the curves of REL MVA (13D) and FU SUB #4A. This miscoordination can not be avoided if coordination is to be maintained with REL MVA (10B) MAIN. This can be seen in TCC MVA (13D) #2.

5. There is miscoordination between the curves of REL MVA (10B) MAIN, REL COMED Y71460, and REL BEDTOWER BLD40 A MAIN. A more expansive power system study is needed to see if the settings for REL BEDTOWER BLD40 A MAIN can be lowered. This can be seen in TCC MVA (14D).

6. There is miscoordination between the curves of REL MVB (3D) and FU SUB #11B. This miscoordination can not be avoided if coordination is to be maintained with REL MVB (6B) MAIN. This can be seen in TCC MVB (3D) #1.

7. There is miscoordination between the curves of REL MVB (3D) and FU SUB #4B. This miscoordination can not be avoided if coordination is to be maintained with REL MVB (6B) MAIN. This can be seen in TCC MVB (3D) #2.

8. There is miscoordination between the curves of REL ESG-F1, REL MVA (5A), and REL MVB (6B) MAIN. This can be seen in TCC MVB (5A).

9. There is miscoordination between the curves of REL MVB (6B) MAIN and REL MVB (5D). At least 0.2 sec separation is needed between the curves of two digital electronic relays. That separation could not be obtained between these two curves. This can be seen in TCC MVB (5D).

10. There is miscoordination between the curves of REL MVB (6B) MAIN, REL COMED Y71454, and REL BEDTOWER BLD40 MAIN. A more expansive

JESSE BROWN VA 3-4

power system study is needed to see if the settings for REL BEDTOWER BLD40 MAIN can be lowered. This can be seen in TCC MVB (6D).

11. ComEd would only let the long time pickup for REL MVB (6B) MAIN be set at3.25(1300 A primary). Thus the full capacity of the switchgear can not be utilizated at this time. This can be seen in TCC MVB (6D).

3.6 Time-Current Characteristic Plots Refer to the following pages for the plotted coordination curves, which graphically indicate the degree of selectivity and protection obtained.

REL COMED Y71460 - Phase

REL MVA (10B) MAIN - Phase

BD MV TIE

TX Inrush

XF2-COMED Y71460

CBL-MV A

0.108 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000

CURRENT IN AMPERESTIME IN SECONDS

REL COMED Y71460 SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -7 Phase 51PP(0.25-16.0 x CTR) 7 (840A) U3, Very Inverse 1

REL MVA (10B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -7 8.326 kAPhase 51PP(0.25-16.0 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

BD MV TIE Size: 2000 kcmilQty/Ph: 1

XF2-COMED Y71460 7500 kVA12470 / 4160 V

CBL-MV A Size: 750 kcmilQty/Ph: 4




XF2-COMED Y71460 7500 kVA12470 / 4160 V

CBL-MV A Size: 750 kcmilQty/Ph: 4

0.108 s

Plot name: MVA (10D) Ref. Voltage: 4160V Current Scale: x 10

BRK MV A (10B) MAIN

REL COMED Y71460

S

P

XF2-COMED Y71460

BUS-XF2-COMED Y71460

CBL-MV A

SWGR MV A

BUS-UTIL-SERVICE A

REL MVA (10B) MAIN

Eaton Electrical Services and Systems June 7, 2017

REL MVA (11A) - Ground

REL ESG-F2 - Neutral

REL MVA (10B) MAIN - Ground

0.307 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVA (11A) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 1.3 (312A) U3, Very Inverse 4.0

REL ESG-F2 SEL 50N/51N, 5A nom. TYPE: 501-1, -2 Neutral 51NP(0.50-16.0 x CTR) 1.3 (312A) U3, Very Inverse 4

REL MVA (10B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -78.326 kAGround 51GP(0.1-16.0 x CTR) 1 (400A) U3, Very Inverse 7

REL MVA (11A) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 1.3 (312A) U3, Very Inverse 4.0

REL ESG-F2 SEL 50N/51N, 5A nom. TYPE: 501-1, -2 Neutral 51NP(0.50-16.0 x CTR) 1.3 (312A) U3, Very Inverse 4


0.307 s

Plot name: MVA (11A) GND Ref. Voltage: 4160V Current Scale: x 10

BRK MV A (10B) MAIN

CBL-ESG-F2

REL MVA (11A)

BRK ESG-F2

REL ESG-F2

BRK MVA (11A)

REL MVA (10B) MAIN

SWGR MV A


REL MVA (11A) - Phase

REL ESG-F2 - Phase


CBL-ESG-F2

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVA (11A) SEL 50P/51P, 5A nom. TYPE: 751A Phase

51P1P, (0.5-16 x CTR) 5 (1200A) U1, Moderately Inverse 1.5

REL ESG-F2 SEL 50P/51P, 5A nom. TYPE: 501-1, -2 Phase

51PP(0.50-16.0 x CTR) 5 (1200A) U1, Moderately Inverse 1.5

REL MVA (10B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -7 8.326 kAPhase

51PP(0.25-16.0 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

CBL-ESG-F2 Size: 500 kcmilQty/Ph: 3


51P1P, (0.5-16 x CTR) 5 (1200A) U1, Moderately Inverse 1.5

REL ESG-F2 SEL 50P/51P, 5A nom. TYPE: 501-1, -2 Phase

51PP(0.50-16.0 x CTR) 5 (1200A) U1, Moderately Inverse 1.5




Plot name: MVA (11A) Ref. Voltage: 4160V Current Scale: x 10

BRK MV A (10B) MAIN

CBL-ESG-F2

REL MVA (11A)

BRK ESG-F2

REL ESG-F2

BRK MVA (11A)

REL MVA (10B) MAIN

SWGR MV A


REL MVA (11D) - Ground


TX Inrush

XF2-SUB #8 A

20.3 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVA (11D) SEL 50G/51G, 5A nom. TYPE: 751A Ground

51G1P, (0.5-16 x CTR) 5 (50A) U3, Very Inverse 6.0 50G1P, (0.5-100 x CTR) 60 (600A) 50G1D, (0.001 - 5s) 0.001

REL MVA (10B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -7 Ground

51GP(0.1-16.0 x CTR) 1 (400A) U3, Very Inverse 7

XF2-SUB #8 A 750 kVA4160 / 208 V


51G1P, (0.5-16 x CTR) 5 (50A) U3, Very Inverse 6.0 50G1P, (0.5-100 x CTR) 60 (600A) 50G1D, (0.001 - 5s) 0.001

REL MVA (10B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -7 Ground


XF2-SUB #8 A 750 kVA4160 / 208 V

20.3 s

Plot name: MVA (11D) GND Ref. Voltage: 4160V Current Scale: x 1

BRK MVA (11D)

REL MVA (11D)

CBL-BLDG 26 SUB 8 A

BUS-XF2-SUB #8 A

S

P

XF2-SUB #8 A

SW XF2-SUB #8 A PRI

REL MVA (10B) MAIN

SWGR MV A


REL MVA (11D) - Phase


CBL-BLDG 26 SUB 8 A

TX Inrush

XF2-SUB #8 A

1.78 s

2.59 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVA (11D) SEL 50P/51P, 5A nom. TYPE: 751A Phase

51P1P, (0.5-16 x CTR) 1.25 (300A) U4, Extremely Inverse 15.0 50P1P, (0.5-100 x CTR) 12 (2880A) 50P1D, (0.001 - 5s) 0.001

BRK SUB #8 A MAIN WESTINGHOUSE AMPTCT IIA TYPE: DS Sensor/Trip: 3200A, 10.844 kAPhase LTPU 1.0 (3200A) LTD 8.0 STPU 4.0 (12800A) STD 0.33


CBL-BLDG 26 SUB 8 A Size: 2/0 AWGQty/Ph: 1

XF2-SUB #8 A 750 kVA4160 / 208 V



BRK SUB #8 A MAIN WESTINGHOUSE AMPTCT IIA TYPE: DS Sensor/Trip: 3200A, 10.844 kAPhase LTPU 1.0 (3200A) LTD 8.0 STPU 4.0 (12800A) STD 0.33


CBL-BLDG 26 SUB 8 A Size: 2/0 AWGQty/Ph: 1

XF2-SUB #8 A 750 kVA4160 / 208 V

1.78 s

2.59 s


BRK MVA (11D)

REL MVA (11D)

CBL-BLDG 26 SUB 8 A

BUS-XF2-SUB #8 A

S

P

XF2-SUB #8 A

SW XF 2-SUB #8 A PRI

BRK SUB #8 A MAIN

SWGR SUB #8 A

SWGR MV A

REL MVA (10B ) MAIN



REL BLDG 1C A MAIN - Ground


0.621 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVA (12D) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 2 (20A) U3, Very Inverse 1.0

REL BLDG 1C A MAIN CUTLER-HAMMER Ground TYPE: FP-5000 6.335 kAGround 51X GND 0.4 (20A) Flat 0.05 50X-1 GND 0.1 (5A) Delay, 50X-1 6

REL MVA (10B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -7 Ground 51GP(0.1-16.0 x CTR) 1 (400A) U3, Very Inverse 7


REL BLDG 1C A MAIN CUTLER-HAMMER Ground TYPE: FP-5000 6.335 kAGround 51X GND 0.4 (20A) Flat 0.05 50X-1 GND 0.1 (5A) Delay, 50X-1 6


0.621 s


BRK MVA (12D)

REL MVA (12D)

CBL-BLDG 1C A

BRK BLDG 1C A MAIN

REL BLDG 1C A MAIN

SWGR BLDG 1C A

REL MVA (10B) MAIN

SWGR MV A



REL BLDG 1C A MAIN - Phase


CBL-BLDG 1C A

3.82 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000




REL BLDG 1C A MAIN CUTLER-HAMMER 50P/51P TYPE: FP-5000 14.407 kAPhase

51P PH 0.5 (300A) ANSI Very Inverse 0.55 50P-1 PH 4.22 (2532A) Delay, 50P-1 0

REL MVA (10B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -78.326 kAPhase


CBL-BLDG 1C A Size: 350 kcmilQty/Ph: 1



REL BLDG 1C A MAIN CUTLER-HAMMER 50P/51P TYPE: FP-5000 14.407 kAPhase

51P PH 0.5 (300A) ANSI Very Inverse 0.55 50P-1 PH 4.22 (2532A) Delay, 50P-1 0



CBL-BLDG 1C A Size: 350 kcmilQty/Ph: 1

3.82 s


BRK MV A (10B) MAIN

BRK MVA (12D)

REL MVA (12D)

CBL-BLDG 1C A

BRK BLDG 1C A MAIN

REL BLDG 1C A MAIN

SWGR BLDG 1C A

SWGR MV A

REL MVA (10B) MAIN




CBL-F2

TX Inrush

XF2-VAA

CBL-VAA

0.397 s

0.454 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVA (13A) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (500A) U4, Extremely Inverse 2.0 50P1P, (0.5-100 x CTR) 70.25 (7025A)

BRK VAA MAIN SQUARE D LSI, 600-2500A, UL TYPE: Powerpact R-Frame, 6.0A/P/HSensor/Trip: 1600A, 11.233 kAPhase LTPU/LTD (A 0.4-1.0 x S) 0.5 (800A); 2 STPU (1.5-10 x LTPU) 2 (1600A) STD (0-0.4) 0.1 (I^2t Off) INST (2-15 x S) 3 (4800A)

REL MVA (10B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -78.326 kAPhase 51PP(0.25-16.0 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

CBL-F2 Size: 500 kcmilQty/Ph: 1

XF2-VAA 1500 kVA4160 / 480 V

CBL-VAA Size: 350 kcmilQty/Ph: 6

REL MVA (13A) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (500A) U4, Extremely Inverse 2.0 50P1P, (0.5-100 x CTR) 70.25 (7025A)

BRK VAA MAIN SQUARE D LSI, 600-2500A, UL TYPE: Powerpact R-Frame, 6.0A/P/HSensor/Trip: 1600A, 11.233 kAPhase LTPU/LTD (A 0.4-1.0 x S) 0.5 (800A); 2 STPU (1.5-10 x LTPU) 2 (1600A) STD (0-0.4) 0.1 (I^2t Off) INST (2-15 x S) 3 (4800A)

REL MVA (10B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -78.326 kAPhase 51PP(0.25-16.0 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2


XF2-VAA 1500 kVA4160 / 480 V

CBL-VAA Size: 350 kcmilQty/Ph: 6

0.397 s

0.454 s

Plot name: MVA (13A) #1 Ref. Voltage: 4160V Current Scale: x 10

BRK MVA (13A)

REL MVA (13A)

CBL-F2

S

P

XF2-VAA

BRK VAA MAIN

SWBD V AA

CBL-VAA

BUS-XF2-VAA SEC

BUS-XF2-VAA PRI

SWGR MV A

REL MVA (10B) MAIN




CBL-F2

TX Inrush

XF2-PARKING GARAGE A

CBL-XF2-PARKING GARAGE A

0.948 s

0.401 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000



51P1P, (0.5-16 x CTR) 5 (500A) U4, Extremely Inverse 2.0 50P1P, (0.5-100 x CTR) 70.25 (7025A)

REL MVA (10B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -7Phase 51PP(0.25-16.0 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

BRK PARKING GARAGE A MAIN SQUARE D LSI, 100-1200A TYPE: NX, Micrologic Sensor/Trip: 1200A, 9.047 kAPlug: 1200 ATPhase LTPU (0.5-1.0 x P) 1.0 (1200A) LTD (2-24 Sec.) 11 STPU (2-10 x P) 2.0 (2400A) STD (0.1-0.5 Sec.) .5 (I^2t On) INST (3-12 x P) 10.0 (12000A)


XF2-PARKING GARAGE A 1000 kVA4160 / 480 V

CBL-XF2-PARKING GARAGE A Size: 500 kcmilQty/Ph: 1



REL MVA (10B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -7Phase 51PP(0.25-16.0 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

BRK PARKING GARAGE A MAIN SQUARE D LSI, 100-1200A TYPE: NX, Micrologic Sensor/Trip: 1200A, 9.047 kAPlug: 1200 ATPhase LTPU (0.5-1.0 x P) 1.0 (1200A) LTD (2-24 Sec.) 11 STPU (2-10 x P) 2.0 (2400A) STD (0.1-0.5 Sec.) .5 (I^2t On) INST (3-12 x P) 10.0 (12000A)


XF2-PARKING GARAGE A 1000 kVA4160 / 480 V

CBL-XF2-PARKING GARAGE A Size: 500 kcmilQty/Ph: 1

0.948 s

0.401 s

Plot name: MVA (13A) #2 Ref. Voltage: 4160V Current Scale: x 10

BRK MV A (10B) MAIN

BRK MVA (13A)

REL MVA (13A)

CBL-F2

S

P

XF2-PARKING GARAGE A

BUS-PARKING GARAGE A PRI

BRK PARKING GARAGE A MAIN

SWBD PARKING GARAGE A

CBL-XF2-PARKING GARAGE A

REL MVA (10B) MAIN

BUS-XF2-VAA PRI

SWGR MV A




CBL-BLDG 11 SUB 4&11A

TX Inrush

XF2-SUB #11 A

0.311 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVA (13D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (400A) U4, Extremely Inverse 2.4 50P1P, (0.5-100 x CTR) 100 (8000A) 50P1D, (0.001 - 5s) 0.001

FU SUB #11 A GE 1E-200E TYPE: 9F60 EJ0-1, 2.75 & 5.5kV E-Rated Sensor/Trip: 150A, Phase 150 Amps



CBL-BLDG 11 SUB 4&11A Size: 350 kcmilQty/Ph: 1

XF2-SUB #11 A 1000 kVA4160 / 480 V

REL MVA (13D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (400A) U4, Extremely Inverse 2.4 50P1P, (0.5-100 x CTR) 100 (8000A) 50P1D, (0.001 - 5s) 0.001





XF2-SUB #11 A 1000 kVA4160 / 480 V

0.311 s

Plot name: MVA (13D) #1 Ref. Voltage: 4160V Current Scale: x 10

BRK MVA (13D)

REL MVA (13D)


SW SUB #11 A

FU SUB #11 A

S

P

XF2-SUB #11 A

BUS-XF2-SUB #11 A SEC

SWGR MV A

BUS-XF2-SUB #11 A PRI

REL MVA (10B) MAIN





CBL-SUB #4 A

TX Inrush

XF2-SUB #4 A

0.295 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000



51P1P, (0.5-16 x CTR) 5 (400A) U4, Extremely Inverse 2.4 50P1P, (0.5-100 x CTR) 100 (8000A) 50P1D, (0.001 - 5s) 0.001





CBL-SUB #4 A Size: 350 kcmilQty/Ph: 1

XF2-SUB #4 A 750 kVA4160 / 208 V







CBL-SUB #4 A Size: 350 kcmilQty/Ph: 1

XF2-SUB #4 A 750 kVA4160 / 208 V

0.295 s

Plot name: MVA (13D) #2 Ref. Voltage: 4160V Current Scale: x 10

BRK MVA (13D)

REL MVA (13D)


CBL-SUB #4 A


SW SUB #4 A

FU SUB #4 A

S

P

XF2-SUB #4 A


SWGR MV A


REL MVA (10B) MAIN




TX Inrush

XF2-SUB #11 A

0.503 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000




REL MVA (10B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -7 8.326 kAGround


XF2-SUB #11 A 1000 kVA4160 / 480 V





XF2-SUB #11 A 1000 kVA4160 / 480 V

0.503 s


BRK MVA (13D)

REL MVA (13D)


SW SUB #11 A

FU SUB #11 A

S

P

XF2-SUB #11 A


REL MVA (10B) M AIN

SWGR MV A




REL BEDTOWER BLD40 A MAIN - Neutral


0.520 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000



51G1P, (0.5-16 x CTR) 6 (60A) U4, Extremely Inverse 4.82

REL BEDTOWER BLD40 A MAIN BASLER 50N/51N, 5A CT TYPE: BE1-951 14.844 kANeutral

S#-51N 0.6 (144A) E1, Extremely Inverse 5.8



51G1P, (0.5-16 x CTR) 6 (60A) U4, Extremely Inverse 4.82

REL BEDTOWER BLD40 A MAIN BASLER 50N/51N, 5A CT TYPE: BE1-951 14.844 kANeutral

S#-51N 0.6 (144A) E1, Extremely Inverse 5.8


0.520 s


BRK MVA (14D)

REL MVA (14D)

CBL-BEDTOWER BLD40 A

SWGR BEDTOWER A

REL BEDTOWER BLD40 A MAIN

REL MVA (10B) MAIN

SWGR MV A


REL BEDTOWER BLD40 A MAIN - Phase





0.290 s

0.557 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL BEDTOWER BLD40 A MAIN BASLER 50/51, 5A CT TYPE: BE1-951 6.194 kAPhase S#-51P 5 (1200A) E1, Extremely Inverse 5.1

REL MVA (10B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -7 Phase 51PP(0.25-16.0 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

REL MVA (14D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (1200A) U4, Extremely Inverse 0.54


CBL-BEDTOWER BLD40 A Size: 750 kcmilQty/Ph: 1

REL BEDTOWER BLD40 A MAIN BASLER 50/51, 5A CT TYPE: BE1-951 6.194 kAPhase S#-51P 5 (1200A) E1, Extremely Inverse 5.1

REL MVA (10B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -7 Phase 51PP(0.25-16.0 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

REL MVA (14D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (1200A) U4, Extremely Inverse 0.54


CBL-BEDTOWER BLD40 A Size: 750 kcmilQty/Ph: 1

0.290 s

0.557 s


BRK MVA (14D)

REL MVA (14D)


SWGR BEDTOWER A

REL BEDTOWER BLD40 A MAIN

SWGR MV A

REL MVA (10B) MAIN




3.05 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVA (15D) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 6 (480A) U3, Very Inverse 3.0 50G1P, (0.5-100 x CTR) 10 (800A) 50G1D, (0.001 - 5s) 0.001


REL MVA (15D) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 6 (480A) U3, Very Inverse 3.0 50G1P, (0.5-100 x CTR) 10 (800A) 50G1D, (0.001 - 5s) 0.001


3.05 s


REL MVA (15D)

REL MVA (10B) MAIN

SWGR MV A




CBL-CHILLER BLD 18 A XFR SW

CBL-CHILLER BLD 18 A

0.323 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000





CBL-CHILLER BLD 18 A XFR SW Size: 350 kcmilQty/Ph: 1

CBL-CHILLER BLD 18 A Size: 350 kcmilQty/Ph: 1




CBL-CHILLER BLD 18 A XFR SW Size: 350 kcmilQty/Ph: 1

CBL-CHILLER BLD 18 A Size: 350 kcmilQty/Ph: 1

0.323 s


BRK CHILLER #3

REL CHILLER #2

BRK MVA (15D)

REL MVA (15D)

CBL-CHILLER BLD 18 A XFR SW

BUS-SW SS MANUAL XFR A

CBL-CHILLER BLD 18 A

SW SS MANUAL XFR A

SWGR CHILLER B

SWGR MV A

REL MVA (10B) MAIN


REL MV TIE B(7D) - Ground

REL MV TIE A(9D) - Ground


0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MV TIE B(7D) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 1 (400A) U3, Very Inverse 7

REL MV TIE A(9D) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 1 (400A) U3, Very Inverse 7







Plot name: MVA TIE GND Ref. Voltage: 4160V Current Scale: x 1

REL MV TIE B(7D)

BD MV TIE

REL M V TIE A(9D)

BRK MV TIE B(9D)

REL MVA (10B) MAIN

SWGR MV A


REL MV TIE B(7D) - Phase

REL MV TIE A(9D) - Phase


BD MV TIE

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MV TIE B(7D) SEL 50P/51P, 5A nom. TYPE: 751A Phase

51P1P, (0.5-16 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

REL MV TIE A(9D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2



REL MV TIE B(7D) SEL 50P/51P, 5A nom. TYPE: 751A Phase


REL MV TIE A(9D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2



Plot name: MVA TIE Ref. Voltage: 4160V Current Scale: x 10

REL MV TIE B(7D)

BD MV TIE

REL MV TIE A(9D)

BRK MV TIE B(9D)

REL MVA (10B) MAIN

SWGR MV A


REL MVB (6B) MAIN - Ground

REL MVB (1D) - Ground

2.90 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVB (6B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -7 Ground 51GP(0.1-16.0 x CTR) 1 (400A) U3, Very Inverse 7

REL MVB (1D) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 6 (480A) U3, Very Inverse 3.0 50G1P, (0.5-100 x CTR) 10 (800A) 50G1D, (0.001 - 5s) 0.001



2.90 s

Plot name: MVB (1D) GND Ref. Voltage: 4160V Current Scale: x 1

REL MVB (6B) MAIN

REL MVB (1D)

SWGR MV B


REL MVB (6B) MAIN - Phase

REL MVB (1D) - Phase

CBL-CHILLER BLD 18 B XFR SW

CBL-CHILLER BLD 18 B

0.327 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVB (6B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -7 8.326 kAPhase 51PP(0.25-16.0 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

REL MVB (1D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (400A) U4, Extremely Inverse 1.83 50P1P, (0.5-100 x CTR) 100 (8000A) 50P1D, (0.001 - 5s) 0.001

CBL-CHILLER BLD 18 B XFR SW Size: 350 kcmilQty/Ph: 1

CBL-CHILLER BLD 18 B Size: 350 kcmilQty/Ph: 1



CBL-CHILLER BLD 18 B XFR SW Size: 350 kcmilQty/Ph: 1

CBL-CHILLER BLD 18 B Size: 350 kcmilQty/Ph: 1

0.327 s

Plot name: MVB (1D) Ref. Voltage: 4160V Current Scale: x 10

REL MVB (6B) MAIN

BRK MVB (1D)

REL MVB (1D)

CBL-CHILLER BLD 18 B XFR SW

BUS-SW SS MANUAL XFR B

CBL-CHILLER BLD 18 B

BRK CHILLER #1

REL CHILLER #1

SW SS MANUAL XFR B

SWGR CHILLER B

SWGR MV B




CBL-BLDG 26 SUB 8B

TX Inrush

XF2-SUB #8

21.7 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVB (6B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -78.326 kAGround 51GP(0.1-16.0 x CTR) 1 (400A) U3, Very Inverse 7


CBL-BLDG 26 SUB 8B Size: 2/0 AWGQty/Ph: 1

XF2-SUB #8 750 kVA4160 / 208 V

REL MVB (6B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -78.326 kAGround 51GP(0.1-16.0 x CTR) 1 (400A) U3, Very Inverse 7



XF2-SUB #8 750 kVA4160 / 208 V

21.7 s


BRK MVB (6B) MAIN

REL MVB (6B) MAIN

BRK MVB (2D)

REL MVB (2D)

CBL-BLDG 26 SUB 8B

BUS-XF2-SUB #8

S

P

XF2-SUB #8

SW XF2-SUB #8 PRI

SWGR MV B

BRK SUB #8 MAIN

SWGR SUB #8




CBL-BLDG 26 SUB 8B

TX Inrush

XF2-SUB #8

4.75 s

1.87 s

2.60 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000



REL MVB (2D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 1.25 (300A) U4, Extremely Inverse 15.0 50P1P, (0.5-100 x CTR) 12 (2880A) 50P1D, (0.001 - 5s) 0.001

BRK SUB #8 MAIN WESTINGHOUSE AMPTCT IIA TYPE: DS Sensor/Trip: 3200A, 10.129 kAPhase LTPU 1.0 (3200A) LTD 8.0 STPU 4.0 (12800A) STD 0.33


XF2-SUB #8 750 kVA4160 / 208 V



BRK SUB #8 MAIN WESTINGHOUSE AMPTCT IIA TYPE: DS Sensor/Trip: 3200A, 10.129 kAPhase LTPU 1.0 (3200A) LTD 8.0 STPU 4.0 (12800A) STD 0.33


XF2-SUB #8 750 kVA4160 / 208 V

4.75 s

1.87 s

2.60 s


BRK MVB (6B) MAIN

REL MVB (6B) MAIN

BRK MVB (2D)

REL MVB (2D)

CBL-BLDG 26 SUB 8B

BUS-XF2-SUB #8

S

P

XF2-SUB #8

SW XF2-SUB #8 PRI

BRK SUB #8 MAIN

SWGR SUB #8

SWGR MV B



REL MVB (3A) - Phase

CBL-F1

TX Inrush

XF2-VBA

CBL-VBA

0.459 s 0.393 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000



REL MVB (3A) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (500A) U4, Extremely Inverse 2.0 50P1P, (0.5-100 x CTR) 70.25 (7025A) BRK VBA MAIN

SQUARE D LSI, 600-2500A, UL TYPE: Powerpact R-Frame, 6.0A/P/H Sensor/Trip: 1600A, 11.233 kAPhase LTPU/LTD (A 0.4-1.0 x S) 0.5 (800A); 2 STPU (1.5-10 x LTPU) 2 (1600A) STD (0-0.4) 0.1 (I^2t Off) INST (2-15 x S) 3 (4800A)


XF2-VBA 1500 kVA4160 / 480 V

CBL-VBA Size: 350 kcmilQty/Ph: 6


REL MVB (3A) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (500A) U4, Extremely Inverse 2.0 50P1P, (0.5-100 x CTR) 70.25 (7025A) BRK VBA MAIN

SQUARE D LSI, 600-2500A, UL TYPE: Powerpact R-Frame, 6.0A/P/H Sensor/Trip: 1600A, 11.233 kAPhase LTPU/LTD (A 0.4-1.0 x S) 0.5 (800A); 2 STPU (1.5-10 x LTPU) 2 (1600A) STD (0-0.4) 0.1 (I^2t Off) INST (2-15 x S) 3 (4800A)


XF2-VBA 1500 kVA4160 / 480 V

CBL-VBA Size: 350 kcmilQty/Ph: 6

0.459 s 0.393 s

Plot name: MVB (3A) #1 Ref. Voltage: 4160V Current Scale: x 10

BRK MVB (6B) MAIN

REL MVB (6B) MAIN

BRK MVB (3A)

REL MVB (3A)

CBL-F1

S

P

XF2-VBA

BRK VBA MAIN

SWBD VBA

CBL-VBA

BUS-XF2-VBA SEC

SWGR MV B

BUS-XF2-VBA PRI




CBL-F1

TX Inrush

XF2-PARKING GARAGE

CBL-XF2-PARKING GARAGE

0.401 s

0.948 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000



REL MVB (3A) SEL 50P/51P, 5A nom. TYPE: 751A Phase


BRK PARKING GARAGE MAIN SQUARE D LSI, 100-1200A TYPE: NX, Micrologic Sensor/Trip: 1200A, 10.362 kAPlug: 1200 ATPhase LTPU (0.5-1.0 x P) 1.0 (1200A) LTD (2-24 Sec.) 11 STPU (2-10 x P) 2.0 (2400A) STD (0.1-0.5 Sec.) .5 (I^2t On) INST (3-12 x P) 10.0 (12000A)


XF2-PARKING GARAGE 1000 kVA4160 / 480 V

CBL-XF2-PARKING GARAGE Size: 500 kcmilQty/Ph: 1


REL MVB (3A) SEL 50P/51P, 5A nom. TYPE: 751A Phase


BRK PARKING GARAGE MAIN SQUARE D LSI, 100-1200A TYPE: NX, Micrologic Sensor/Trip: 1200A, 10.362 kAPlug: 1200 ATPhase LTPU (0.5-1.0 x P) 1.0 (1200A) LTD (2-24 Sec.) 11 STPU (2-10 x P) 2.0 (2400A) STD (0.1-0.5 Sec.) .5 (I^2t On) INST (3-12 x P) 10.0 (12000A)



CBL-XF2-PARKING GARAGE Size: 500 kcmilQty/Ph: 1

0.401 s

0.948 s

Plot name: MVB (3A) #2 Ref. Voltage: 4160V Current Scale: x 10

BRK MVB (6B) MAIN

REL MVB (6B) MAIN

BRK MVB (3A)

REL MVB (3A)

CBL-F1

S

P

XF2-PARKING GARAGE

BUS-PARKING GARAGE PRI

BRK PARKING GARAGE MAIN

SWBD PARKING GARAGE

CBL-XF2-PARKING GARAGE

SWGR MV B

BUS-XF2-VBA PRI



REL MVB (3A) - Ground

TX Inrush

XF2-PARKING GARAGE

TX Inrush

XF2-VBA

1.51 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVB (6B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -7 8.326 kAGround 51GP(0.1-16.0 x CTR) 1 (400A) U3, Very Inverse 7

REL MVB (3A) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 1 (100A) U3, Very Inverse 3.0 50G1P, (0.5-100 x CTR) 20 (2000A)


XF2-VBA 1500 kVA4160 / 480 V


REL MVB (3A) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 1 (100A) U3, Very Inverse 3.0 50G1P, (0.5-100 x CTR) 20 (2000A)


XF2-VBA 1500 kVA4160 / 480 V

1.51 s

Plot name: MVB (3A) GND Ref. Voltage: 4160V Current Scale: x 10

BRK MVB (3A)

REL MVB (3A)

SWGR MV B

CBL-F1

BUS-XF2-VBA PRI

BRK MVB (6B) MAIN

REL MVB (6B) MAIN

S

P XF2-VBA CBL-XF2-PARKING GARAGE

BUS-XF2-VBA SEC BUS-PARKING GARAGE PRI

S

P XF2-PARKING GARAGE




CBL-BLDG 11 SUB 4&11B

TX Inrush

XF2-SUB #11 B

0.306 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVB (6B) MAIN SEL 50P/51P/67, 5A nom. TYPE: 351-5, -6, -7 8.326 kAPhase


REL MVB (3D) SEL 50P/51P, 5A nom. TYPE: 751A Phase


FU SUB #11 B GE 1E-200E TYPE: 9F60 EJ0-1, 2.75 & 5.5kV E-Rated Sensor/Trip: 150A, Phase 150 Amps

CBL-BLDG 11 SUB 4&11B Size: 350 kcmilQty/Ph: 1

XF2-SUB #11 B 1000 kVA4160 / 480 V



REL MVB (3D) SEL 50P/51P, 5A nom. TYPE: 751A Phase




XF2-SUB #11 B 1000 kVA4160 / 480 V

0.306 s

Plot name: MVB (3D) #1 Ref. Voltage: 4160V Current Scale: x 1

REL MVB (6B) M AIN

BRK MVB (3D)

REL MVB (3D)


SW SUB #11 B

FU SUB #11 B

S

P

XF2-SUB #11 B

BUS-XF2-SUB #11 B SEC

SWGR MV B

BUS-XF2-SUB #11 P RI





CBL-SUB #4 B

TX Inrush

XF2-SUB #4 B

0.313 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000






CBL-SUB #4 B Size: 350 kcmilQty/Ph: 1

XF2-SUB #4 B 750 kVA4160 / 208 V





CBL-SUB #4 B Size: 350 kcmilQty/Ph: 1

XF2-SUB #4 B 750 kVA4160 / 208 V

0.313 s

Plot name: MVB (3D) #2 Ref. Voltage: 4160V Current Scale: x 1

REL MVB (6B) MAIN

BRK MVB (3D)

REL MVB (3D)


CBL-SUB #4 B

BUS-XF2-SUB #12 PRI

SW SUB #4 B

FU SUB #4 B

S

P

XF2-SUB #4 B

BUS-XF2-SUB #4 B SEC

SWGR MV B

BUS-XF2-SUB #11 PR I




TX Inrush

XF2-SUB #11 B

0.503 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000



REL MVB (3D) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 5 (50A) U3, Very Inverse 2.0

XF2-SUB #11 B 1000 kVA4160 / 480 V



XF2-SUB #11 B 1000 kVA4160 / 480 V

0.503 s


BRK MVB (6B) MAIN

REL MVB (6B) MAIN

BRK MVB (3D)

REL MVB (3D)


SW SUB #11 B

FU SUB #11 B

S

P

XF2-SUB #11 B

SWGR MV B

BUS-XF2-SUB #11 PRI




REL BLDG 1C MAIN - Ground

0.623 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000




REL BLDG 1C MAIN CUTLER-HAMMER Ground TYPE: FP-5000 6.403 kAGround 51X GND 0.4 (20A) Flat 0.05 50X-1 GND 0.1 (5A) Delay, 50X-1 6



REL BLDG 1C MAIN CUTLER-HAMMER Ground TYPE: FP-5000 6.403 kAGround 51X GND 0.4 (20A) Flat 0.05 50X-1 GND 0.1 (5A) Delay, 50X-1 6

0.623 s


BRK MVB (6B) MAIN

REL MVB (6B) MAIN

BRK MVB (4D)

REL MVB (4D)

CBL-BLDG 1C

BRK BLDG 1C MAIN

REL BLDG 1C MAIN

SWGR BLDG 1C

SWGR MV B




REL BLDG 1C MAIN - Phase

CBL-BLDG 1C

3.78 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000




REL BLDG 1C MAIN CUTLER-HAMMER 50P/51P TYPE: FP-5000 14.407 kAPhase 51P PH 0.5 (300A)

ANSI Very Inverse 0.55 50P-1 PH 4.22 (2532A) Delay, 50P-1 0

CBL-BLDG 1C Size: 350 kcmilQty/Ph: 1



REL BLDG 1C MAIN CUTLER-HAMMER 50P/51P TYPE: FP-5000 14.407 kAPhase 51P PH 0.5 (300A)

ANSI Very Inverse 0.55 50P-1 PH 4.22 (2532A) Delay, 50P-1 0

CBL-BLDG 1C Size: 350 kcmilQty/Ph: 1

3.78 s


BRK MVB (6B) MAIN

REL MVB (6B) MAIN

BRK MVB (4D)

REL MVB (4D)

CBL-BLDG 1C

BRK BLDG 1C MAIN

REL BLDG 1C MAIN

SWGR BLDG 1C

SWGR MV B


REL ESG-F1 - Neutral

REL MVB (5A) - Neutral


0.302 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL ESG-F1 SEL 50N/51N, 5A nom. TYPE: 501-1, -216.191 kANeutral 51NP(0.50-16.0 x CTR) 1.3 (312A) U3, Very Inverse 4

REL MVB (5A) SEL 50G/51G, 5A nom. TYPE: 751A Neutral 51G1P, (0.5-16 x CTR) 1.3 (312A) U3, Very Inverse 4.0


REL ESG-F1 SEL 50N/51N, 5A nom. TYPE: 501-1, -216.191 kANeutral 51NP(0.50-16.0 x CTR) 1.3 (312A) U3, Very Inverse 4

REL MVB (5A) SEL 50G/51G, 5A nom. TYPE: 751A Neutral 51G1P, (0.5-16 x CTR) 1.3 (312A) U3, Very Inverse 4.0


0.302 s

Plot name: MVB (5A) GND Ref. Voltage: 4160V Current Scale: x 10

BRK ESG-F1

REL ESG-F1

CBL-ESG-F1

BRK MVB (5A)

REL MVB (5A)

SWGR ESG

SWGR MV B

BRK MVB (6B) MAIN

REL MVB (6B) MAIN


REL ESG-F1 - Phase



CBL-ESG-F1

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL ESG-F1 SEL 50P/51P, 5A nom. TYPE: 501-1, -2 16.191 kAPhase 51PP(0.50-16.0 x CTR) 5 (1200A) U1, Moderately Inverse 1.5

REL MVB (5A) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (1200A) U1, Moderately Inverse 1.5



REL ESG-F1 SEL 50P/51P, 5A nom. TYPE: 501-1, -2 16.191 kAPhase 51PP(0.50-16.0 x CTR) 5 (1200A) U1, Moderately Inverse 1.5

REL MVB (5A) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (1200A) U1, Moderately Inverse 1.5



Plot name: MVB (5A) Ref. Voltage: 4160V Current Scale: x 10

BRK ESG-F1

REL ESG-F1

CBL-ESG-F1

BRK MVB (5A)

REL MVB (5A)

SWGR ESG

SWGR MV B

BRK MVB (6B) MAIN

REL MVB (6B) M AIN




REL BEDTOWER BLD40 MAIN - Neutral

0.513 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000



REL MVB (5D) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 6 (60A) U4, Extremely Inverse 4.82

REL BEDTOWER BLD40 MAIN BASLER 50N/51N, 5A CT TYPE: BE1-951 14.844 kANeutral S#-51N 0.6 (144A) E1, Extremely Inverse 5.8


REL MVB (5D) SEL 50G/51G, 5A nom. TYPE: 751A Ground 51G1P, (0.5-16 x CTR) 6 (60A) U4, Extremely Inverse 4.82

REL BEDTOWER BLD40 MAIN BASLER 50N/51N, 5A CT TYPE: BE1-951 14.844 kANeutral S#-51N 0.6 (144A) E1, Extremely Inverse 5.8

0.513 s


BRK MVB (6B) MAIN

REL MVB (6B) MAIN

BRK MVB (5D)

REL MVB (5D)

CBL-BEDTOWER BLD40

SWGR BEDTOWER

REL BEDTOWER BLD40 MAIN

SWGR MV B




REL BEDTOWER BLD40 MAIN - Phase


CBL-BEDTOWER BLD40

0.118 s

0.103 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000



REL MVB (5D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 5 (1200A) U4, Extremely Inverse 0.54

REL BEDTOWER BLD40 MAIN BASLER 50/51, 5A CT TYPE: BE1-951 14.844 kAPhase S#-51P 5 (1200A) E1, Extremely Inverse 5.1


CBL-BEDTOWER BLD40 Size: 500 kcmilQty/Ph: 2






0.118 s

0.103 s


BRK MVB (6B) MAIN

REL MVB (6B) MAIN

BRK MVB (5D)

REL MVB (5D)

CBL-BEDTOWER BLD40

SWGR BEDTOWER


SWGR MV B




REL BEDTOWER BLD40 MAIN - Phase


CBL-MV B

TX Inrush

XF2-COMED Y71454

CBL-BEDTOWER BLD40

0.117 s

0.196 s

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000






CBL-MV B Size: 750 kcmilQty/Ph: 4

XF2-COMED Y71454 7500 kVA12470 / 4160 V






CBL-MV B Size: 750 kcmilQty/Ph: 4

XF2-COMED Y71454 7500 kVA12470 / 4160 V


0.117 s

0.196 s


UTIL-COMED Y71454

CBL-MV B

BUS-UTIL-COMED-Y7154

BRK MVB (6B) MAIN

REL MVB (6B) MAIN

REL COMED Y71454

S

P

XF2-COMED Y71454

BUS-XF2-COMED Y71454

SWGR MV B

BRK MVB (5D)

REL MVB (5D)

CBL-BEDTOWER BLD40


SWGR BEDTOWER



REL MV TIE B(7D) - Ground

REL MV TIE A(9D) - Ground

BD MV TIE

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000


REL MVB (6B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -7 8.326 kAGround





REL MVB (6B) MAIN SEL 50G/51G/67, 5A nom. TYPE: 351-5, -6, -7 8.326 kAGround





Plot name: MVB TIE GND Ref. Voltage: 4160V Current Scale: x 10

REL MVB (6B) MAIN

BRK MV TIE A(7D)

REL MV TIE B(7D)

BD MV TIE

REL MV TIE A(9D)

SWGR MV B



REL MV TIE B(7D) - Phase

REL MV TIE A(9D) - Phase

BD MV TIE

0.5 1 10 100

1K

10K

0.01

0.10

1

10

100

1000




REL MV TIE B(7D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

REL MV TIE A(9D) SEL 50P/51P, 5A nom. TYPE: 751A Phase





REL MV TIE B(7D) SEL 50P/51P, 5A nom. TYPE: 751A Phase 51P1P, (0.5-16 x CTR) 3.25 (1300A) U4, Extremely Inverse 2.2

REL MV TIE A(9D) SEL 50P/51P, 5A nom. TYPE: 751A Phase



Plot name: MVB TIE Ref. Voltage: 4160V Current Scale: x 10

REL MVB (6B) MAIN

BRK MV TIE A(7D)

REL MV TIE B(7D)

BD MV TIE

REL MV TIE A(9D)

SWGR MV B


JESSE BROWN VA 4-1

RECOMMENDED PROTECTIVE DEVICE SETTINGS 4.0The relay settings are show in pdf file format in a attached folder submitted with this report. Refer to Section 11.0 for the system one-line diagram.

JESSE BROWN 5-1

ARC FLASH INCIDENT ENERGY ANALYSIS 5.0This section of the report contains the interpretation for the arc flash incident energy analysis. The calculations made in this arc flash incident energy analysis conform to NFPA 70E-2015, and are based on the information provided by the customer. Actual heat and radiation exposure may be more or less than reflected in the analysis.

Only qualified electricians who are familiar with the installation and maintenance of electrical distribution equipment should perform work associated with such products. All recommendations of the manufacturer, warnings and cautions relating to the safety of personnel and equipment should be followed. All applicable health and safety laws, codes, standards, and procedures should be adhered to. All equipment should be de-energized prior to any maintenance or service. OSHA 1910.333 requirements should be adhered to. All guidelines of NFPA 70E-2015 should be followed, and in particular appropriate personal protective equipment must be provided and worn. Eaton Corporation will not be responsible for the misuse or misapplication of the information contained in this analysis. Those providing service for electrical equipment should contact an Eaton Electrical Services and Systems representative, or other qualified individual, if any questions arise.

5.1 General NFPA 70E-2015, Article 110.1(G) requires that an employer developed electrical safety program includes a risk assessment procedure that addresses worker exposure to electrical hazards. This procedure is meant to be used before performing work on or near any equipment at or above 50 volts or any time work is being performed where an electrical hazard exists. This analysis presents only the results of an incident energy evaluation conducted in accordance with 130.5(C)(1). Selection of personal protective equipment (PPE) should be made based on the incident energy level at the working distance which is presented in this report as part of an arc flash risk assessment to be made by the qualified person. Other components of an arc flash risk assessment including determination of whether or not an arc flash hazard exists for a given work task and the appropriate safe work practices to be employed should be completed by the qualified person performing the work. The risk of arc flash exposure when working on or near electrical equipment depends on a number of factors including the nature of the task being performed and the condition of the equipment. NFPA 70E-2015, Article 130.7(A) requires that employees use and employers provide proper PPE for the tasks being performed. NFPA 70E, Table H.3(b) provides guidance for the selection of PPE based on calculated incident energy exposure.

NFPA 70E and IEEE Std 1584 provide equations and methods to calculate the arc flash boundary and incident energy at specific locations within a facility’s electrical system. Any location where work may be performed on or near energized electrical conductors and circuit parts is subject to the arc flash standards. PPE used to guard against arc flash hazards should be considered the last line of defense. It is also important to note that the use of PPE is not intended to prevent all injuries from an arc flash. The goal of determining required PPE using the arc flash incident energy analysis is to identify the level of protection required to limit the injury to the onset of a second degree burn in the event of an arc flash while avoiding the use of more

JESSE BROWN 5-2

protection than is needed so as to minimize hazards of heat stress, reduced visibility and limited body movement.

Although the arc flash calculation procedure is based upon NFPA 70E and IEEE Std 1584 equations and methods, it is a relatively new approach to determining the degree of required PPE. The calculations are derived from theory and research involving arc current incident energy measurements conducted under a specific set of controlled test conditions. Therefore, calculation results may be more severe or less severe than the hazard presented by an actual arc flash exposure. Also, the arc flash incident energy calculations do not take into account hazards associated with the splattering of molten metal, explosively propelled pieces of equipment and air pressure shock waves.

The results of this arc flash incident energy analysis are not intended to imply that personnel be permitted to work on exposed energized equipment or circuits. OSHA 1910.333 restricts the situations in which work is to be performed near or on energized equipment or circuits by stating, “Live parts to which an employee may be exposed shall be deenergized before the employee works on or near them, unless the employer can demonstrate that deenergizing introduces additional or increased hazards or is infeasible due to equipment design or operational limitations.”

Even if work is not being performed directly on energized equipment, it is important that the proper PPE be used during some load interruption actions, during visual verification of the state of disconnecting devices, and during lockout/tagout procedures.

In accordance with NFPA 70E and IEEE Std 1584, the analysis software provides the calculation of these values. The equations used in these calculations are based on actual test values. These tests measured the calories per square centimeter (cal/cm2) radiating from a simulated arcing fault at a theorized working distance of 18 inches.

5.2 Objectives The intent of NFPA 70E and IEEE Std 1584 guidelines is to establish standard calculations to determine an approach boundary that will prevent the onset of a second-degree burn to the face and the torso of the worker. An incident energy of 1.2 cal/cm2 represents the onset of a second-degree burn.

NFPA 70E, Article 130.7(A), Informational Note 3, states that it may be necessary to place greater emphasis on establishing an electrically safe work condition when working within the limited approach boundary at locations where the incident energy exceeds 40 cal/cm2. Locations with a calculated incident energy that exceeds 40 cal/cm2 are shown in Table 5.2.

The arc flash incident energy analysis considers each medium and low voltage system location within the scope of the work. IEEE Std 1584 states that equipment below 240 V need not be considered unless it involves at least one 125 kVA or larger low-impedance transformer in its immediate power supply. Therefore, no detailed calculations will be performed for 120/208 V locations supplied by a transformer smaller than 125 kVA, however labels will be provided for these locations.

Before the arc flash equations can be applied, a detailed short-circuit and protective device coordination study must be completed to include all locations where work may be performed on or near energized components; e.g. motor control centers and

JESSE BROWN 5-3

power distribution panels. Since the short-circuit current must be calculated at every pertinent location and the clearing time of each location’s upstream protective device is required, the arc flash circuit model is more detailed and extends deeper into the facility electrical distribution system than is typical of a basic short-circuit and protective device coordination study. Accurate fault currents and device clearing times are extremely important in deriving reliable results. A conservative (high) fault current value could yield a faster clearing time of a protective device, depending upon its curve shape, and the calculated incident energy may actually be less than the incident energy calculated for a lower magnitude of fault current and a longer clearing time.

Arc Flash Scenarios

Since the greatest arc flash hazards may not result from the highest fault current, multiple scenarios must be analyzed and compared. The following modes of operation have been evaluated in order to determine the worst-case incident energy at each location in the system. It is important to determine the available short-circuit current for modes of operation that provide both the maximum and minimum available short-circuit currents.

• Arc Flash Scenario #1 – Maximum Utility Fault current with SW SS MANUALXFR A and BRK MVA (11A) open.

• Arc Flash Scenario #2 – Eighty Percent of Maximum Utility Fault current with SWSS MANUAL XFR A, BRK MVA (11A) and BRK MV TIE A (7D) open.

5.3 Arc Flash Incident Energy Analysis Results The incident energy associated with an arc flash is dependent upon the following parameters:

• The maximum “bolted fault” three-phase short-circuit current available at theequipment and the minimum fault level at which the arc will self-sustain.

• The total protective device clearing time (upstream of the prospective arclocation) at the maximum short-circuit current and the minimum fault level atwhich the arc will self-sustain.

• The distance of the worker from the prospective arc for the task to be performed.

The arc flash incident energy analysis results shown in Table 5.1 and Table 5.2 are based on a protective device clearing time that is capped at 2 seconds. This is based on IEEE Std 1584 which states in Annex B, Instructions and Examples; “If the time is longer than two seconds, consider how long a person is likely to remain in the location of the arc flash. It is likely that a person exposed to an arc flash will move away quickly if it is physically possible, and two seconds is a reasonable maximum time for calculations. A person in a bucket truck or a person who has crawled into equipment will need more time to move away.”

Two calculations are typically provided for labels on locations where there is adequate separation between the line side terminals of the main protective device, and the work location. The “Load Side” calculation provides the incident energy based on the main protective device clearing in the event of an arc flash incident. If the work location or task is such that the main breaker may not trip in the event of an arc flash incident, then the “Line Side” calculation for incident energy should be observed. This could occur if the main breaker is being racked-out, and a fault

JESSE BROWN 5-4

occurred on the line terminals. For this case, the next upstream device is the one that must clear the fault.

One should always remember that the terms “Line Side” and “Load Side” are always in reference to the main protective device (see example below).

Figure 5.1: Line Side vs. Load Side

The fault current cannot easily be reduced nor can the working distance be easily increased to lessen the incident energy. In many locations the protective device setting can be adjusted or the trip unit upgraded to decrease the device interrupting time that will in turn decrease the incident energy. For a critical electrical distribution system, it is essential that the system reliability not be compromised. Settings for protective devices cannot be adjusted if the chance of nuisance trips within critical circuits is introduced. Each location where the incident energy is determined to be unacceptable by the VA must be individually evaluated to determine the most effective means of reducing the incident energy while maintaining the highest degree of reliability.

All adjustable protective devices must be set as recommended in Section 4.0 to achieve the incident energy levels shown in Table 5.1 and Table 5.2.

5.4 Arc Flash Summary Table Heading Descriptions Table 5.1 and Table 5.2 show results of the arc flash incident energy analysis. The following column headings describe the results.

Bus Name: The names in this column correlate to the names implemented in the software system model . These locations correspond to plant locations such as main switchboards, panelboards, enclosed breakers, etc.

Protective Device Name: This column lists the name of the device primarily responsible for clearing a potential fault at the associated bus. Again, these device names correlate to the system model.

Bus Voltage (kV): The values in this column show the nominal voltage of the bus location.

“Line Side”

“Load Side”

JESSE BROWN 5-5

Bus Bolted Fault (kA): This column shows the bolted fault current available for the bus location referenced in Column #1. This current value corresponds to the system operating conditions that will result in the worst-case calculated value for incident energy.

Prot Dev Bolted Fault (kA): This column displays the portion of calculated bolted fault currents (See Column #4) that is contributed through the protective device.

Prot Dev Arcing Fault (kA): This column displays the portion of calculated arcing fault currents that is contributed through the protective device. These values demonstrate a reduction in available fault current due to the arc resistance.

Trip/Delay Time (sec): This column displays the length of time required by the protective device to trip in the presence of the calculated arcing fault current. For low voltage breakers and fuses, this time represents the total clearing time of the device.

Breaker Opening Time (sec): For circuit breakers tripped by a relay, this column shows the opening time of the breaker. This time is added to the Trip time to determine the total clearing time used in the calculation of incident energy.

Gnd: This column indicates whether the fault location includes a path to ground. Systems with high-resistance or low-resistance grounds are assumed to be ungrounded in the arc flash calculations.

Equip Type: This column indicates whether the equipment is Switchgear, Panel, Cable or Open Air. The equipment type provides a default Gap value, and a distance exponent used in the IEEE incident energy equations.

Gap (mm): This column displays the spacing between bus bars or conductors at the arc location.

Arc Flash Boundary (in): This column displays the distance within which a person must be clothed in the appropriate PPE (Personal Protection Equipment).

Working Distance (in): This distance indicates the typical working distance associated with the system location.

Incident Energy (cal/cm2): Based on the arcing fault current, the total clearing time of the protective device, the bus bar gap, the grounding method, and the typical working distance, the column displays the results of the arc flash calculations at the reference location. This energy level directly corresponds to the appropriate PPE required for each location. NFPA 70E provides guidance for the selection of PPE based on calculated incident energy exposure.

5.5 Arc Flash Labels Arc flash warning labels are based on the Arc Flash Summary Table results. Labels are provided for each work location and will be machine printed, with no field markings. The label shall have an orange header with the wording, “WARNING, SHOCK & ARC FLASH HAZARD”, and shall include the following information (see example label below):

• Engineering report number, revision number and issue date. • Location designation • Arc flash boundary • Incident energy • Working distance

JESSE BROWN 5-6

• Nominal system voltage • Electrical Shock Boundaries

1. Electrical Shock Boundaries

Approach boundaries to energized electrical conductors or circuit parts for shock protection (AC systems) are provided on the AF label. For any given voltage potential, there is a minimum safe electrical distance needed to protect non-insulated body parts from electrical shock. Conditions such as moisture or dust in the air, or altitude affect this minimum distance to some degree. Additionally, depending on the working situation, it may be necessary to add some distance as a safety factor in case of inadvertent movement of a worker’s hand or tool.

a) Nominal System Voltage: The normal AC operating voltage of the equipment or conductors where the work is to take place.

b) Limited Approach Boundary: The closest distance from an exposed, energized (or potentially energized) conductor or part that an unqualified worker may approach, unless additional protective measures are used.

c) Restricted Approach Boundary: The distance from exposed, energized conductors or circuit parts where only qualified workers are allowed, unless additional protective measures are used.

The definitions above to determine the proper approach distances for Electrical Shock Hazards are based upon NFPA 70E. Refer to NFPA 70E, Article 130.4(B) for detailed information on approach boundaries to Energized Electrical Conductors or Circuit Parts for Shock Protection.

It is important to note that the shock protection boundaries and the arc flash boundary are independent of each other.

JESSE BROWN 5-7

Figure 5.2: Example Arc Flash Label

5.6 Arc Flash Incident Energy Analysis Recommendations

1) All of the adjustable protective devices must be set as recommended in Section 4.0 to achieve the incident energy levels listed in Table 5.1 and Table 5.2.

2) Each location where the arc flash incident energy is unacceptable to the VA should be individually evaluated to determine the most effective means of reducing the incident energy while maintaining the highest degree of reliability.

JESSE BROWN VA 5-8

Table 5.1 – Arc Flash Incident Energy Analysis Summary Table

Bus Name Protective Bus Bus Prot Dev Prot Dev Trip/ Breaker Gnd Equip Gap Arc Flash Working Incident Device Voltage Bolted Bolted Arcing Delay Opening Type (mm) Boundary Distance Energy Name (kV) Fault Fault Fault Time Time (ft & in) (ft & in) (cal/cm2)

(kA) (kA) (kA) (sec.) (sec.) BUS-PARKING GARAGE A PRI REL MVA (13A) 4.16 5.95 5.95 5.83 0.1549 0.0830 Yes SWG 104 46 36 1.5

BUS-PARKING GARAGE PRI REL MVB (3A) 4.16 6.01 6.01 5.88 0.1532 0.0830 Yes SWG 104 46 36 1.5

BUS-SW SS MANUAL XFR A REL MVA (15D) 4.16 16.22 16.22 15.61 0.0167 0.0830 Yes SWG 104 56 36 1.8

BUS-SW SS MANUAL XFR B REL MVB (1D) 4.16 16.22 16.22 15.61 0.0167 0.0830 Yes SWG 104 56 36 1.8

BUS-UTIL-COMED-Y7154 MaxTripTime @2.0s 4.16 17.21 8.70 8.46 2 0.0000 Yes SWG 104 752 36 23.0

BUS-UTIL-SERVICE A MaxTripTime @2.0s 4.16 17.21 8.60 8.37 2 0.0000 Yes SWG 104 744 36 22.8

BUS-XF2-COMED Y71454 MaxTripTime @2.0s 12.47 2.66 1.35 1.35 2 0.0000 No SWG 152 229 36 7.2

BUS-XF2-COMED Y71460 REL MVA (10B) MAIN 12.47 2.66 1.33 1.12 1.95 0.0500 No SWG 152 209 36 6.6

BUS-XF2-SUB #11 A PRI REL MVA (13D) 4.16 6.10 6.10 5.97 0.1462 0.0830 Yes SWG 104 45 36 1.5

BUS-XF2-SUB #11 A SEC FU SUB #11 A 0.48 14.99 14.99 7.88 1.121 0.0000 Yes PNL 25 125 18 28.7

BUS-XF2-SUB #11 B SEC FU SUB #11 B 0.48 15.03 15.03 7.90 1.107 0.0000 Yes PNL 25 124 18 28.5

BUS-XF2-SUB #11 PRI REL MVB (3D) 4.16 6.17 6.17 6.03 0.145 0.0830 Yes SWG 104 45 36 1.5

BUS-XF2-SUB #12 PRI REL MVB (3D) 4.16 5.54 5.54 5.43 0.1591 0.0830 Yes SWG 104 43 36 1.4

BUS-XF2-SUB #4 A PRI REL MVA (13D) 4.16 5.49 5.49 5.38 0.1606 0.0830 Yes SWG 104 43 36 1.4

BUS-XF2-SUB #4 A SEC FU SUB #4 A 0.208 34.78 34.78 10.44 2 0.0000 Yes PNL 25 214 18 69.5

BUS-XF2-SUB #4 B SEC FU SUB #4 B 0.208 34.78 34.78 10.44 2 0.0000 Yes PNL 25 214 18 69.5

BUS-XF2-SUB #8 REL MVB (2D) 4.16 15.63 15.63 15.06 0.0167 0.0830 Yes SWG 104 54 36 1.8

BUS-XF2-SUB #8 A REL MVA (11D) 4.16 15.63 15.63 15.06 0.0167 0.0830 Yes SWG 104 54 36 1.8

BUS-XF2-VAA PRI REL MVA (13A) 4.16 6.02 6.02 5.89 0.1529 0.0830 Yes SWG 104 46 36 1.5

JESSE BROWN VA 5-9

Bus Name Protective Bus Bus Prot Dev Prot Dev Trip/ Breaker Gnd Equip Gap Arc Flash Working Incident Device Voltage Bolted Bolted Arcing Delay Opening Type (mm) Boundary Distance Energy Name (kV) Fault Fault Fault Time Time (ft & in) (ft & in) (cal/cm2) (kA) (kA) (kA) (sec.) (sec.)

BUS-XF2-VAA SEC REL MVA (13A) 0.48 19.42 19.42 11.56 1.917 0.0830 Yes PNL 25 229 18 77.7

BUS-XF2-VBA PRI REL MVB (3A) 4.16 6.08 6.08 5.95 0.1512 0.0830 Yes SWG 104 46 36 1.5

BUS-XF2-VBA SEC REL MVB (3A) 0.48 19.50 19.50 11.60 1.912 0.0830 Yes PNL 25 229 18 77.7 PNL CHILLER #1 VFD

REL MVB (1D) (REL CHILLER #1) 4.16 15.53 15.53 14.96 0.0167 0.0830 Yes SWG 104 53 36 1.8

PNL CHILLER #2 VFD

REL MVB (1D) (REL CHILLER #2) 4.16 15.53 15.53 14.96 0.0167 0.0830 Yes SWG 104 53 36 1.8

SWBD PARKING GARAGE

BRK PARKING GARAGE MAIN 0.48 14.62 14.62 7.71 1.745 0.0000 Yes PNL 25 161 18 43.7

SWBD PARKING GARAGE (Line Side)

REL MVB (3A) 0.48 17.10 17.10 10.37 1.917 0.0830 Yes PNL 25 213 18 69.0


BRK PARKING GARAGE A MAIN 0.48 14.57 14.57 7.69 1.753 0.0000 Yes PNL 25 162 18 43.8

SWBD PARKING GARAGE A (Line Side)

REL MVA (13A) 0.48 17.10 17.10 10.37 1.917 0.0830 Yes PNL 25 213 18 69.0

SWBD V AA BRK VAA MAIN 0.48 22.73 22.73 13.22 0.06 0.0000 Yes PNL 25 30 18 2.7 SWBD V AA (Line Side) REL MVA (13A) 0.48 22.73 22.73 11.24 1.917 0.0830 Yes PNL 25 225 18 75.3

SWBD VBA BRK VBA MAIN 0.48 22.73 22.73 13.22 0.06 0.0000 Yes PNL 25 30 18 2.7 SWBD VBA (Line Side) REL MVB (3A) 0.48 22.73 22.73 11.24 1.917 0.0830 Yes PNL 25 225 18 75.3

SWGR BEDTOWER REL MVB (5D) 4.16 15.49 15.49 14.92 0.0391 0.0830 Yes SWG 104 65 36 2.1 SWGR BEDTOWER (Line Side) REL MVB (5D) 4.16 15.49 15.49 14.92 0.0391 0.0830 Yes SWG 104 65 36 2.1

SWGR BEDTOWER A REL MVA (14D) 4.16 14.26 14.26 13.76 0.0426 0.0830 Yes SWG 104 62 36 2.0

SWGR BEDTOWER A (Line Side) REL MVA (14D) 4.16 14.26 14.26 13.76 0.0426 0.0830 Yes SWG 104 62 36 2.0

SWGR BLDG 1C REL MVB (4D) 4.16 15.02 15.02 14.48 0.0167 0.0830 Yes SWG 104 51 36 1.7 SWGR BLDG 1C (Line Side) REL MVB (4D) 4.16 15.02 15.02 14.48 0.0167 0.0830 Yes SWG 104 51 36 1.7

SWGR BLDG 1C A REL MVA (12D) 4.16 15.02 15.02 14.48 0.0167 0.0830 Yes SWG 104 51 36 1.7 SWGR BLDG 1C A (Line Side) REL MVA (12D) 4.16 15.02 15.02 14.48 0.0167 0.0830 Yes SWG 104 51 36 1.7

JESSE BROWN VA 5-10


SWGR CHILLER B REL MVB (1D) 4.16 15.89 15.89 15.30 0.0167 0.0830 Yes SWG 104 55 36 1.8

SWGR ESG REL MVB (5A) 4.16 16.93 16.93 16.28 0.3253 0.0830 Yes SWG 104 249 36 7.9 SWGR ESG (Line Side) REL MVB (5A) 4.16 16.93 16.93 16.28 0.3253 0.0830 Yes SWG 104 249 36 7.9

SWGR MV A REL MVA (10B) MAIN 4.16 17.21 8.56 6.99 0.5256 0.0500 Yes SWG 104 299 36 9.4 SWGR MV A (Line Side) MaxTripTime @2.0s 4.16 6.85 6.85 6.69 2 0.0000 Yes SWG 104 475 36 14.7

SWGR MV B REL MVA (10B) MAIN (REL MV TIE B(7D)) 4.16 17.21 8.55 6.99 0.5257 0.0500 Yes SWG 104 299 36 9.4

SWGR MV B (Line Side) MaxTripTime @2.0s 4.16 17.21 8.66 8.42 2 0.0000 Yes SWG 104 748 36 22.9

SWGR SUB #8 BRK SUB #8 MAIN 0.208 36.74 36.74 10.13 2 0.0000 Yes SWG 32 272 24 42.8 SWGR SUB #8 (Line Side) REL MVB (2D) 0.208 36.74 36.74 10.13 1.917 0.0830 Yes SWG 32 272 24 42.8

SWGR SUB #8 A BRK SUB #8 A MAIN 0.208 36.74 36.74 10.85 2 0.0000 Yes PNL 25 220 18 72.5 SWGR SUB #8 A (Line Side) REL MVA (11D) 0.208 36.74 36.74 10.85 1.917 0.0830 Yes PNL 25 220 18 72.5

JESSE BROWN VA 5-11

Table 5.2 – Arc Flash Incident Energy Analysis Summary Table for Locations Greater Than 40 cal/cm2


BUS-XF2-SUB #4 A SEC FU SUB #4 A 0.208 34.78 34.78 10.44 2 0.0000 Yes PNL 25 214 18 69.5

BUS-XF2-SUB #4 B SEC FU SUB #4 B 0.208 34.78 34.78 10.44 2 0.0000 Yes PNL 25 214 18 69.5

BUS-XF2-VAA SEC REL MVA (13A) 0.48 19.42 19.42 11.56 1.917 0.0830 Yes PNL 25 229 18 77.7

BUS-XF2-VBA SEC REL MVB (3A) 0.48 19.50 19.50 11.60 1.912 0.0830 Yes PNL 25 229 18 77.7 SWBD PARKING GARAGE

BRK PARKING GARAGE MAIN 0.48 14.62 14.62 7.71 1.745 0.0000 Yes PNL 25 161 18 43.7

SWBD PARKING GARAGE (Line Side)

REL MVB (3A) 0.48 17.10 17.10 10.37 1.917 0.0830 Yes PNL 25 213 18 69.0


BRK PARKING GARAGE A MAIN 0.48 14.57 14.57 7.69 1.753 0.0000 Yes PNL 25 162 18 43.8

SWBD PARKING GARAGE A (Line Side)

REL MVA (13A) 0.48 17.10 17.10 10.37 1.917 0.0830 Yes PNL 25 213 18 69.0

SWBD V AA (Line Side) REL MVA (13A) 0.48 22.73 22.73 11.24 1.917 0.0830 Yes PNL 25 225 18 75.3

SWBD VBA (Line Side) REL MVB (3A) 0.48 22.73 22.73 11.24 1.917 0.0830 Yes PNL 25 225 18 75.3

SWGR SUB #8 BRK SUB #8 MAIN 0.208 36.74 36.74 10.13 2 0.0000 Yes SWG 32 272 24 42.8 SWGR SUB #8 (Line Side) REL MVB (2D) 0.208 36.74 36.74 10.13 1.917 0.0830 Yes SWG 32 272 24 42.8

SWGR SUB #8 A BRK SUB #8 A MAIN 0.208 36.74 36.74 10.85 2 0.0000 Yes PNL 25 220 18 72.5 SWGR SUB #8 A (Line Side) REL MVA (11D) 0.208 36.74 36.74 10.85 1.917 0.0830 Yes PNL 25 220 18 72.5

JESSE BROWN VA 6-1

SYSTEM DATA 6.0The following input data used in modeling the power system was obtained as follows:

• Contract drawings: KB1.000 and KB.001.• Eaton on-site data collection performed by Eaton Field Service Engineers Mike

Stackhouse and Nolan Fredricksen.• Eaton Bill of Material.• Utility data by ComEd.• Equipment and feeder data provided from Kelso-Burnett.

• Available fault current information provided by Commonwealth was used in theanalysis. A copy of the utility letter provided can be found for review underSection 9.0.

• Location: ComEd Service Y71454

• Voltage: 4,160 Volts

• Three-phase fault current: 8,700 A, X/R=8

• Single-line to ground fault current: 9,800 A, X/R=8

• Location: ComEd Service Y71460

• Voltage: 4,160 Volts

• Three-phase fault current: 8,600 A, X/R=8

• Single-line to ground fault current: 9,700 A X/R=8

• System voltage is modeled at 100% nominal

• All motors were assumed to be running.

• Motor subtransient reactance is assumed to be 16.7%.

• Motors rated less than 50 hp were modeled as lumped groups.

• The following data was used in performing the arc flash incident energy analysis:

• Generator supplied fault current is reduced to 300% of rated current after10 cycles.

Complete information regarding the system model used for the computer simulation is included in Section 7.0.

JESSE BROWN VA 7-1

SHORT-CIRCUIT INPUT REPORT 7.0Input Report Interpretation

Input Data Tables are provided on the following pages. The following is a guide for interpreting the input data.

• Generation Contribution Data

- Utility contribution data includes the available fault current in MVA and amps,per unit impedance on a 100 MVA base, X/R, and the line-to-line bus voltage.

- Generator data includes the generator kW rating, X”d, X/R, line-to-linevoltage and per unit impedance on a 100 MVA base.

• Motor Contribution Data

Motor Contribution Data includes the horsepower rating (base kVA rating),speed, subtransient reactance adjusted per the First Cycle Duty multipliersdescribed in IEEE Std 141 (Red Book), per-unit impedance on a 100 MVA base,and the bus voltage. X/R ratios for induction motors are obtained from IEEE StdC37.010.

• Feeder Data

Feeder data includes the following cable and bus data: length, impedance inohms per 1,000 feet, and per-unit impedance on a 100 MVA base. Impedancevalues for conductors were obtained from Tables 4A-7 and 4A-8 of IEEE Std 141(Red Book).

• Transformer Data

Transformer data includes the transformer kVA rating and per-unit impedance ona 100 MVA base. Unless otherwise provided, transformer X/R ratios are obtainedfrom IEEE Std C37.010. Typical design impedances published by Eaton wereused to model the Eaton dry-type transformers.

JESSE BROWN VA 7-2

Short-Circuit Input Report

JESSE BROWN VA 7-3

Jun 07, 2017 15:51:15 Page 1 ------------------------------------------------------------------------------ ALL INFORMATION PRESENTED IS FOR REVIEW, APPROVAL INTERPRETATION AND APPLICATION BY A REGISTERED ENGINEER ONLY SKM DISCLAIMS ANY RESPONSIBILITY AND LIABILITY RESULTING FROM THE USE AND INTERPRETATION OF THIS SOFTWARE. ------------------------------------------------------------------------------ SKM POWER*TOOLS FOR WINDOWS INPUT DATA REPORT COPYRIGHT SKM SYSTEMS ANALYSIS, INC. 1995-2016 ------------------------------------------------------------------------------ ALL PU VALUES ARE EXPRESSED ON A 100 MVA BASE.

JESSE BROWN VA 7-4

Jun 07, 2017 15:51:15 Page 2

FEEDER INPUT DATA

=============================================================================================================== CABLE FEEDER FROM FEEDER TO QTY VOLTS LENGTH FEEDER NAME NAME NAME /PH L-L SIZE TYPE

=============================================================================================================== BD MV TIE SWGR MV B SWGR MV A 1 4160 1.000 FEET 2000 Copper

Duct Material: Busway Insulation Type: Epoxy Insulation Class: Class B

+/- Impedance: 0.0060 + J 0.0529 Ohms/1000 ft 0.00003 + J 0.00031 PU Z0 Impedance: 0.0354 + J 0.2829 Ohms/1000 ft 0.00020 + J 0.0016 PU

CBL-BEDTOWER BSWGR MV B SWGR BEDTOWER 2 4160 550.0 FEET 500 Copper Duct Material: Magnetic Insulation Type: EPR Insulation

Class:+/- Impedance: 0.0300 + J 0.0526 Ohms/1000 ft 0.0477 + J 0.0836 PU Z0 Impedance: 0.0945 + J 0.1295 Ohms/1000 ft 0.1502 + J 0.2058 PU

CBL-BEDTOWER BSWGR MV A SWGR BEDTOWER 1 4160 550.0 FEET 750 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-BLDG 11 SUSWGR MV A BUS-XF2-SUB #1 1 4160 700.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-BLDG 11 SUSWGR MV B BUS-XF2-SUB #1 1 4160 700.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-BLDG 1C SWGR MV B SWGR BLDG 1C 1 4160 330.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: EPR Insulation

Class: +/- Impedance: 0.0386 + J 0.0562 Ohms/1000 ft 0.0736 + J 0.1072 PU

Z0 Impedance: 0.1217 + J 0.1384 Ohms/1000 ft 0.2320 + J 0.2639 PU

CBL-BLDG 1C A SWGR MV A SWGR BLDG 1C A 1 4160 330.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-BLDG 26 SUSWGR MV A BUS-XF2-SUB #8 1 4160 175.0 FEET 2/0 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-BLDG 26 SUSWGR MV B BUS-XF2-SUB #8 1 4160 175.0 FEET 2/0 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


JESSE BROWN VA 7-5

Jun 07, 2017 15:51:15 Page 3

FEEDER INPUT DATA


=============================================================================================================== CBL-CHILLER #1SWGR CHILLER B PNL CHILLER #1 1 4160 40.0 FEET 1/0 Copper

Duct Material: Magnetic Insulation Type: EPR Insulation Class:


CBL-CHILLER #2SWGR CHILLER B PNL CHILLER #2 1 4160 40.0 FEET 1/0 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-CHILLER BLSWGR MV A BUS-SW SS MANU 1 4160 140.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-CHILLER BLBUS-SW SS MANU SWGR CHILLER B 1 4160 50.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-CHILLER BLSWGR MV B BUS-SW SS MANU 1 4160 140.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-ESG-F1 SWGR ESG SWGR MV B 3 4160 125.0 FEET 500 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-F1 SWGR MV B BUS-XF2-VBA PR 1 4160 860.0 FEET 500 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-F2 SWGR MV A BUS-XF2-VAA PR 1 4160 860.0 FEET 500 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-MV A BUS-UTIL-SERVI SWGR MV A 4 4160 110.0 FEET 750 Copper Duct Material: Magnetic Insulation Type: XLP Insulation


JESSE BROWN VA 7-6

Jun 07, 2017 15:51:15 Page 4

FEEDER INPUT DATA


=============================================================================================================== CBL-MV B BUS-UTIL-COMED SWGR MV B 4 4160 110.0 FEET 750 Copper

Duct Material: Magnetic Insulation Type: XLP Insulation Class:


CBL-SUB #4 A BUS-XF2-SUB #1 BUS-XF2-SUB #4 1 4160 700.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-SUB #4 B BUS-XF2-SUB #1 BUS-XF2-SUB #1 1 4160 700.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-VAA BUS-XF2-VAA SE SWBD V AA 6 480 100.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: PVC Insulation

Class: THWN +/- Impedance: 0.0378 + J 0.0373 Ohms/1000 ft 0.2734 + J 0.2698 PU Z0 Impedance: 0.1191 + J 0.0918 Ohms/1000 ft 0.8615 + J 0.6641 PU

CBL-VBA BUS-XF2-VBA SE SWBD VBA 6 480 100.0 FEET 350 Copper Duct Material: Magnetic Insulation Type: PVC Insulation

Class: THWN +/- Impedance: 0.0378 + J 0.0373 Ohms/1000 ft 0.2734 + J 0.2698 PU Z0 Impedance: 0.1191 + J 0.0918 Ohms/1000 ft 0.8615 + J 0.6641 PU

CBL-XF2-PARKINBUS-XF2-VBA PR BUS-PARKING GA 1 4160 80.0 FEET 500 Copper Duct Material: Magnetic Insulation Type: EPR Insulation


CBL-XF2-PARKINBUS-XF2-VAA PR BUS-PARKING GA 1 4160 80.0 FEET 500 Copper Duct Material: Magnetic Insulation Type: EPR Insulation

Class: +/- Impedance: 0.0300 + J 0.0526 Ohms/1000 ft 0.0139 + J 0.0243 PU

Z0 Impedance: 0.0945 + J 0.1295 Ohms/1000 ft 0.0437 + J 0.0599 PU

JESSE BROWN VA 7-7

Jun 07, 2017 15:51:15 Page 5 TRANSFORMER INPUT DATA ============================================================================================= TRANSFORMER PRIMARY RECORD VOLTS * SECONDARY RECORD VOLTS FULL-LOAD NOMINAL NAME NO NAME L-L NO NAME L-L KVA KVA ============================================================================================= XF2-COMED Y714 BUS-XF2-COMED D 12470.0 BUS-UTIL-COMED YG 4160.00 8625.00 7500.00 Pos. Seq. Z%: 1.000 + J 6.93 (Zpu 0.133 + j 0.923 ) Shell Type Zero Seq. Z%: 1.000 + J 6.93 (Sec 0.133 + j 0.923 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg. XF2-COMED Y714 BUS-XF2-COMED D 12470.0 BUS-UTIL-SERVI YG 4160.00 8625.00 7500.00 Pos. Seq. Z%: 1.000 + J 6.93 (Zpu 0.133 + j 0.923 ) Shell Type Zero Seq. Z%: 1.000 + J 6.93 (Sec 0.133 + j 0.923 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg. XF2-PARKING GA BUS-PARKING GA D 4160.00 SWBD PARKING G YG 480.00 1150.00 1000.00 Pos. Seq. Z%: 1.02 + J 5.83 (Zpu 1.02 + j 5.83 ) Shell Type Zero Seq. Z%: 1.02 + J 5.83 (Sec 1.02 + j 5.83 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg. XF2-PARKING GA BUS-PARKING GA D 4160.00 SWBD PARKING G YG 480.00 1150.00 1000.00 Pos. Seq. Z%: 1.02 + J 5.83 (Zpu 1.02 + j 5.83 ) Shell Type Zero Seq. Z%: 1.02 + J 5.83 (Sec 1.02 + j 5.83 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg. XF2-SUB #11 A BUS-XF2-SUB #1 D 4160.00 BUS-XF2-SUB #1 YG 480.00 1000.00 1000.00 Pos. Seq. Z%: 1.000 + J 5.66 (Zpu 1.000 + j 5.66 ) Shell Type Zero Seq. Z%: 1.000 + J 5.66 (Sec 1.000 + j 5.66 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg. XF2-SUB #11 B BUS-XF2-SUB #1 D 4160.00 BUS-XF2-SUB #1 YG 480.00 1000.00 1000.00 Pos. Seq. Z%: 1.000 + J 5.66 (Zpu 1.000 + j 5.66 ) Shell Type Zero Seq. Z%: 1.000 + J 5.66 (Sec 1.000 + j 5.66 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg.

JESSE BROWN VA 7-8

Jun 07, 2017 15:51:15 Page 6 TRANSFORMER INPUT DATA ============================================================================================= TRANSFORMER PRIMARY RECORD VOLTS * SECONDARY RECORD VOLTS FULL-LOAD NOMINAL NAME NO NAME L-L NO NAME L-L KVA KVA ============================================================================================= XF2-SUB #4 A BUS-XF2-SUB #4 D 4160.00 BUS-XF2-SUB #4 YG 208.00 750.00 750.00 Pos. Seq. Z%: 1.000 + J 4.90 (Zpu 1.33 + j 6.53 ) Shell Type Zero Seq. Z%: 1.000 + J 4.90 (Sec 1.33 + j 6.53 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg. XF2-SUB #4 B BUS-XF2-SUB #1 D 4160.00 BUS-XF2-SUB #4 YG 208.00 750.00 750.00 Pos. Seq. Z%: 1.000 + J 4.90 (Zpu 1.33 + j 6.53 ) Shell Type Zero Seq. Z%: 1.000 + J 4.90 (Sec 1.33 + j 6.53 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg. XF2-SUB #8 BUS-XF2-SUB #8 D 4160.00 SWGR SUB #8 YG 208.00 750.00 750.00 Pos. Seq. Z%: 1.000 + J 4.90 (Zpu 1.33 + j 6.53 ) Shell Type Zero Seq. Z%: 1.000 + J 4.90 (Sec 1.33 + j 6.53 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg. XF2-SUB #8 A BUS-XF2-SUB #8 D 4160.00 SWGR SUB #8 A YG 208.00 750.00 750.00 Pos. Seq. Z%: 1.000 + J 4.90 (Zpu 1.33 + j 6.53 ) Shell Type Zero Seq. Z%: 1.000 + J 4.90 (Sec 1.33 + j 6.53 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg. XF2-VAA BUS-XF2-VAA PR D 4160.00 BUS-XF2-VAA SE YG 480.00 1725.00 1500.00 Pos. Seq. Z%: 0.881 + J 5.76 (Zpu 0.587 + j 3.84 ) Shell Type Zero Seq. Z%: 0.881 + J 5.76 (Sec 0.587 + j 3.84 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg. XF2-VBA BUS-XF2-VBA PR D 4160.00 BUS-XF2-VBA SE YG 480.00 1725.00 1500.00 Pos. Seq. Z%: 0.881 + J 5.76 (Zpu 0.587 + j 3.84 ) Shell Type Zero Seq. Z%: 0.881 + J 5.76 (Sec 0.587 + j 3.84 Pri Open) Taps Pri. 0.000 % Sec. 0.000 % Phase Shift (Pri. Leading Sec.): 30.00 Deg.

JESSE BROWN VA 7-9

Jun 07, 2017 15:51:15 Page 7 GENERATION CONTRIBUTION DATA ===================================================================================== BUS CONTRIBUTION VOLTAGE NAME NAME L-L MVA X"d X/R ===================================================================================== BUS-UTIL-COMED UTIL-COMED-Y71 4160.00 62.69 Three Phase Contribution: 8700.00 AMPS 8.00 Single Line to Ground Contribution: 9800.00 AMPS 8.00 Pos Sequence Impedance (100 MVA Base) 0.1979 + J 1.58 PU Zero Sequence Impedance (100 MVA Base) 0.1312 + J 1.05 PU BUS-UTIL-SERVI UTIL-COMED-Y71 4160.00 61.97 Three Phase Contribution: 8600.00 AMPS 8.00 Single Line to Ground Contribution: 9700.00 AMPS 8.00 Pos Sequence Impedance (100 MVA Base) 0.2002 + J 1.60 PU Zero Sequence Impedance (100 MVA Base) 0.1321 + J 1.06 PU

JESSE BROWN VA 8-1

SHORT-CIRCUIT RESULTS 8.0

JESSE BROWN VA 8-2

Jun 07, 2017 15:51:158-2 ------------------------------------------------------------------------------ ALL INFORMATION PRESENTED IS FOR REVIEW, APPROVAL INTERPRETATION AND APPLICATION BY A REGISTERED ENGINEER ONLY SKM DISCLAIMS ANY RESPONSIBILITY AND LIABILITY RESULTING FROM THE USE AND INTERPRETATION OF THIS SOFTWARE. ------------------------------------------------------------------------------ SKM POWER*TOOLS FOR WINDOWS A_FAULT SHORT CIRCUIT ANALYSIS REPORT COPYRIGHT SKM SYSTEMS ANALYSIS, INC. 1996-2016 ------------------------------------------------------------------------------

JESSE BROWN VA 8-3

Jun 07, 2017 15:51:15 THREE PHASE LOW VOLTAGE DUTY PAGE 1 T H R E E P H A S E F A U L T R E P O R T (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== BUS-PARKING GA 3P Duty: 12.420 KA AT -76.32 DEG ( 89.49 MVA) X/R: 4.11 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0457 + J 0.1879 OHMS CBL-XF2-PARKIN BUS-XF2-VAA PR 12.420 KA ANG: 103.68 BUS-PARKING GA 3P Duty: 12.420 KA AT -76.32 DEG ( 89.49 MVA) X/R: 4.11 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0457 + J 0.1879 OHMS CBL-XF2-PARKIN BUS-XF2-VBA PR 12.420 KA ANG: 103.68 BUS-SW SS MANU 3P Duty: 16.216 KA AT -81.09 DEG ( 116.84 MVA) X/R: 6.38 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0229 + J 0.1463 OHMS CBL-CHILLER BL SWGR MV A 16.216 KA ANG: -81.09 BUS-SW SS MANU 3P Duty: 16.216 KA AT -81.09 DEG ( 116.84 MVA) X/R: 6.38 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0229 + J 0.1463 OHMS CBL-CHILLER BL SWGR MV B 16.216 KA ANG: -81.09 BUS-UTIL-COMED 3P Duty: 17.211 KA AT -82.79 DEG ( 124.01 MVA) X/R: 7.90 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1384 OHMS CONTRIBUTIONS: UTIL-COMED-Y71 8.700 KA ANG: -82.87 CBL-MV B SWGR MV B 8.511 KA ANG: -262.70 BUS-UTIL-SERVI 3P Duty: 17.209 KA AT -82.78 DEG ( 124.00 MVA) X/R: 7.90 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1385 OHMS CONTRIBUTIONS: UTIL-COMED-Y71 8.600 KA ANG: -82.87 CBL-MV A SWGR MV A 8.609 KA ANG: -82.69 BUS-XF2-COMED 3P Duty: 2.661 KA AT -82.25 DEG ( 57.48 MVA) X/R: 7.35 VOLTAGE: 12470. EQUIV. IMPEDANCE= 0.3648 + J 2.6805 OHMS XF2-COMED Y714 BUS-UTIL-COMED 2.661 KA ANG: -82.25 BUS-XF2-COMED 3P Duty: 2.661 KA AT -82.25 DEG ( 57.48 MVA) X/R: 7.35 VOLTAGE: 12470. EQUIV. IMPEDANCE= 0.3648 + J 2.6806 OHMS XF2-COMED Y714 BUS-UTIL-SERVI 2.661 KA ANG: -82.25 BUS-XF2-SUB #1 3P Duty: 13.104 KA AT -75.93 DEG ( 94.42 MVA) X/R: 3.99 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0445 + J 0.1778 OHMS CBL-BLDG 11 SU SWGR MV A 13.104 KA ANG: -75.93 BUS-XF2-SUB #1 3P Duty: 17.671 KA AT -79.35 DEG ( 14.69 MVA) X/R: 5.32 VOLTAGE: 480. EQUIV. IMPEDANCE= 0.0029 + J 0.0154 OHMS

JESSE BROWN VA 8-4

Jun 07, 2017 15:51:15 THREE PHASE LOW VOLTAGE DUTY PAGE 2 T H R E E P H A S E F A U L T R E P O R T (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOW VOLTAGE POWER CIRCUIT BREAKER 17.671 KA MOLDED CASE CIRCUIT BREAKER > 20KA 17.988 KA XF2-SUB #11 A BUS-XF2-SUB #1 17.671 KA ANG: 100.65 BUS-XF2-SUB #1 3P Duty: 17.671 KA AT -79.35 DEG ( 14.69 MVA) X/R: 5.32 VOLTAGE: 480. EQUIV. IMPEDANCE= 0.0029 + J 0.0154 OHMS LOW VOLTAGE POWER CIRCUIT BREAKER 17.671 KA MOLDED CASE CIRCUIT BREAKER > 20KA 17.988 KA XF2-SUB #11 B BUS-XF2-SUB #1 17.671 KA ANG: 100.65 BUS-XF2-SUB #1 3P Duty: 13.104 KA AT -75.93 DEG ( 94.42 MVA) X/R: 3.99 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0445 + J 0.1778 OHMS CBL-BLDG 11 SU SWGR MV B 13.104 KA ANG: -75.93 BUS-XF2-SUB #1 3P Duty: 10.505 KA AT -71.76 DEG ( 75.69 MVA) X/R: 3.03 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0716 + J 0.2171 OHMS CBL-SUB #4 B BUS-XF2-SUB #1 10.505 KA ANG: -71.76 BUS-XF2-SUB #4 3P Duty: 10.505 KA AT -71.76 DEG ( 75.69 MVA) X/R: 3.03 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0716 + J 0.2171 OHMS CBL-SUB #4 A BUS-XF2-SUB #1 10.505 KA ANG: -71.76 BUS-XF2-SUB #4 3P Duty: 34.783 KA AT -77.36 DEG ( 12.53 MVA) X/R: 4.46 VOLTAGE: 208. EQUIV. IMPEDANCE= 0.0008 + J 0.0034 OHMS LOW VOLTAGE POWER CIRCUIT BREAKER 34.783 KA MOLDED CASE CIRCUIT BREAKER > 20KA 34.783 KA XF2-SUB #4 A BUS-XF2-SUB #4 34.783 KA ANG: 102.64 BUS-XF2-SUB #4 3P Duty: 34.783 KA AT -77.36 DEG ( 12.53 MVA) X/R: 4.46 VOLTAGE: 208. EQUIV. IMPEDANCE= 0.0008 + J 0.0034 OHMS LOW VOLTAGE POWER CIRCUIT BREAKER 34.783 KA MOLDED CASE CIRCUIT BREAKER > 20KA 34.783 KA XF2-SUB #4 B BUS-XF2-SUB #1 34.783 KA ANG: 102.64 BUS-XF2-SUB #8 3P Duty: 15.631 KA AT -76.62 DEG ( 112.63 MVA) X/R: 4.20 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0356 + J 0.1495 OHMS CBL-BLDG 26 SU SWGR MV B 15.631 KA ANG: -76.62 BUS-XF2-SUB #8 3P Duty: 15.631 KA AT -76.62 DEG ( 112.63 MVA) X/R: 4.20 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0356 + J 0.1495 OHMS CBL-BLDG 26 SU SWGR MV A 15.631 KA ANG: -76.62 BUS-XF2-VAA PR 3P Duty: 12.726 KA AT -76.73 DEG ( 91.69 MVA) X/R: 4.24 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0433 + J 0.1837 OHMS

JESSE BROWN VA 8-5

Jun 07, 2017 15:51:15 THREE PHASE LOW VOLTAGE DUTY PAGE 3 T H R E E P H A S E F A U L T R E P O R T (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== CONTRIBUTIONS TO BUS-XF2-VAA PR (CONTINUED) CBL-F2 SWGR MV A 12.726 KA ANG: -76.73 BUS-XF2-VAA SE 3P Duty: 24.179 KA AT -80.30 DEG ( 20.10 MVA) X/R: 5.85 VOLTAGE: 480. EQUIV. IMPEDANCE= 0.0019 + J 0.0113 OHMS LOW VOLTAGE POWER CIRCUIT BREAKER 24.179 KA MOLDED CASE CIRCUIT BREAKER > 20KA 25.098 KA XF2-VAA BUS-XF2-VAA PR 24.179 KA ANG: 99.70 BUS-XF2-VBA PR 3P Duty: 12.726 KA AT -76.73 DEG ( 91.69 MVA) X/R: 4.24 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0433 + J 0.1837 OHMS CBL-F1 SWGR MV B 12.726 KA ANG: -76.73 BUS-XF2-VBA SE 3P Duty: 24.179 KA AT -80.30 DEG ( 20.10 MVA) X/R: 5.85 VOLTAGE: 480. EQUIV. IMPEDANCE= 0.0019 + J 0.0113 OHMS LOW VOLTAGE POWER CIRCUIT BREAKER 24.179 KA MOLDED CASE CIRCUIT BREAKER > 20KA 25.098 KA XF2-VBA BUS-XF2-VBA PR 24.179 KA ANG: 99.70 PNL CHILLER #1 3P Duty: 15.535 KA AT -78.82 DEG ( 111.93 MVA) X/R: 5.06 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0300 + J 0.1517 OHMS CBL-CHILLER #1 SWGR CHILLER B 15.535 KA ANG: -78.82 PNL CHILLER #2 3P Duty: 15.535 KA AT -78.82 DEG ( 111.93 MVA) X/R: 5.06 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0300 + J 0.1517 OHMS CBL-CHILLER #2 SWGR CHILLER B 15.535 KA ANG: -78.82 SWBD PARKING G 3P Duty: 17.096 KA AT -79.47 DEG ( 14.21 MVA) X/R: 5.38 VOLTAGE: 480. EQUIV. IMPEDANCE= 0.0030 + J 0.0159 OHMS LOW VOLTAGE POWER CIRCUIT BREAKER 17.096 KA MOLDED CASE CIRCUIT BREAKER < 20KA 19.407 KA MOLDED CASE CIRCUIT BREAKER > 20KA 17.446 KA XF2-PARKING GA BUS-PARKING GA 17.096 KA ANG: -259.47 SWBD PARKING G 3P Duty: 17.096 KA AT -79.47 DEG ( 14.21 MVA) X/R: 5.38 VOLTAGE: 480. EQUIV. IMPEDANCE= 0.0030 + J 0.0159 OHMS LOW VOLTAGE POWER CIRCUIT BREAKER 17.096 KA MOLDED CASE CIRCUIT BREAKER < 20KA 19.407 KA MOLDED CASE CIRCUIT BREAKER > 20KA 17.446 KA XF2-PARKING GA BUS-PARKING GA 17.096 KA ANG: -259.47 SWBD V AA 3P Duty: 22.732 KA AT -77.88 DEG ( 18.90 MVA) X/R: 4.66 VOLTAGE: 480. EQUIV. IMPEDANCE= 0.0026 + J 0.0119 OHMS

JESSE BROWN VA 8-6

Jun 07, 2017 15:51:15 THREE PHASE LOW VOLTAGE DUTY PAGE 4 T H R E E P H A S E F A U L T R E P O R T (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOW VOLTAGE POWER CIRCUIT BREAKER 22.732 KA MOLDED CASE CIRCUIT BREAKER > 20KA 22.732 KA CBL-VAA BUS-XF2-VAA SE 22.732 KA ANG: -257.88 SWBD VBA 3P Duty: 22.732 KA AT -77.88 DEG ( 18.90 MVA) X/R: 4.66 VOLTAGE: 480. EQUIV. IMPEDANCE= 0.0026 + J 0.0119 OHMS LOW VOLTAGE POWER CIRCUIT BREAKER 22.732 KA MOLDED CASE CIRCUIT BREAKER > 20KA 22.732 KA CBL-VBA BUS-XF2-VBA SE 22.732 KA ANG: -257.88 SWGR BEDTOWER 3P Duty: 15.488 KA AT -80.43 DEG ( 111.59 MVA) X/R: 5.93 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0258 + J 0.1529 OHMS CBL-BEDTOWER B SWGR MV B 15.488 KA ANG: -80.43 SWGR BEDTOWER 3P Duty: 14.258 KA AT -79.81 DEG ( 102.74 MVA) X/R: 5.56 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0298 + J 0.1658 OHMS CBL-BEDTOWER B SWGR MV A 14.258 KA ANG: -79.81 SWGR BLDG 1C 3P Duty: 15.021 KA AT -79.09 DEG ( 108.23 MVA) X/R: 5.19 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0303 + J 0.1570 OHMS CBL-BLDG 1C SWGR MV B 15.021 KA ANG: -79.09 SWGR BLDG 1C A 3P Duty: 15.021 KA AT -79.09 DEG ( 108.23 MVA) X/R: 5.19 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0303 + J 0.1570 OHMS CBL-BLDG 1C A SWGR MV A 15.021 KA ANG: -79.09 SWGR CHILLER B 3P Duty: 15.886 KA AT -80.54 DEG ( 114.46 MVA) X/R: 6.00 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0249 + J 0.1491 OHMS CBL-CHILLER BL BUS-SW SS MANU 15.886 KA ANG: -80.54 SWGR ESG 3P Duty: 16.926 KA AT -82.40 DEG ( 121.96 MVA) X/R: 7.49 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0188 + J 0.1406 OHMS CBL-ESG-F1 SWGR MV B 16.926 KA ANG: -82.40 SWGR MV A 3P Duty: 17.210 KA AT -82.78 DEG ( 124.00 MVA) X/R: 7.90 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1385 OHMS CBL-MV A BUS-UTIL-SERVI 8.556 KA ANG: 97.21 BD MV TIE SWGR MV B 8.653 KA ANG: -82.78 SWGR MV B 3P Duty: 17.210 KA AT -82.78 DEG ( 124.00 MVA) X/R: 7.90 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1385 OHMS CBL-MV B BUS-UTIL-COMED 8.655 KA ANG: -82.78 BD MV TIE SWGR MV A 8.554 KA ANG: 97.21

JESSE BROWN VA 8-7

Jun 07, 2017 15:51:15 THREE PHASE LOW VOLTAGE DUTY PAGE 5 T H R E E P H A S E F A U L T R E P O R T (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== SWGR SUB #8 3P Duty: 36.745 KA AT -78.25 DEG ( 13.24 MVA) X/R: 4.81 VOLTAGE: 208. EQUIV. IMPEDANCE= 0.0007 + J 0.0032 OHMS LOW VOLTAGE POWER CIRCUIT BREAKER 36.745 KA MOLDED CASE CIRCUIT BREAKER > 20KA 36.745 KA XF2-SUB #8 BUS-XF2-SUB #8 36.745 KA ANG: 101.75 SWGR SUB #8 A 3P Duty: 36.745 KA AT -78.25 DEG ( 13.24 MVA) X/R: 4.81 VOLTAGE: 208. EQUIV. IMPEDANCE= 0.0007 + J 0.0032 OHMS LOW VOLTAGE POWER CIRCUIT BREAKER 36.745 KA MOLDED CASE CIRCUIT BREAKER > 20KA 36.745 KA XF2-SUB #8 A BUS-XF2-SUB #8 36.745 KA ANG: 101.75

JESSE BROWN VA 8-8

Jun 07, 2017 15:51:15 UNBALANCED LOW VOLTAGE DUTY PAGE 1 U N B A L A N C E D F A U L T R E P O R T (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOCATION FAULT KA X/R EQUIVALENT (PU) ASYM. KA AT 0.5 CYCLES VOLTAGE DUTIES (RMS) FAULT IMPEDANCE * MAX. RMS AVG. RMS * ============================================================================== BUS-PARKING GA 3P Duty: 12.420 4.11 Z1= 1.1175 14.870 13.674 SLG DUTY: 12.568 2.90 Z2= 1.1175 13.931 4160. VOLTS LN/LN: 10.756 Z0= 1.1075 LN/LN/GND: 13.449 ( 12.607 GND RETURN KA) BUS-PARKING GA 3P Duty: 12.420 4.11 Z1= 1.1175 14.870 13.674 SLG DUTY: 12.568 2.90 Z2= 1.1175 13.932 4160. VOLTS LN/LN: 10.756 Z0= 1.1075 LN/LN/GND: 13.449 ( 12.607 GND RETURN KA) BUS-SW SS MANU 3P Duty: 16.216 6.38 Z1= 0.8558 21.434 18.922 SLG DUTY: 19.844 5.12 Z2= 0.8558 24.992 4160. VOLTS LN/LN: 14.044 Z0= 0.3930 LN/LN/GND: 19.853 ( 25.489 GND RETURN KA) BUS-SW SS MANU 3P Duty: 16.216 6.38 Z1= 0.8558 21.434 18.922 SLG DUTY: 19.844 5.12 Z2= 0.8558 24.992 4160. VOLTS LN/LN: 14.044 Z0= 0.3930 LN/LN/GND: 19.853 ( 25.489 GND RETURN KA) BUS-UTIL-COMED 3P Duty: 17.211 7.90 Z1= 0.8064 23.743 20.618 SLG DUTY: 22.248 7.72 Z2= 0.8064 30.556 4160. VOLTS LN/LN: 14.905 Z0= 0.2587 LN/LN/GND: 21.767 ( 31.453 GND RETURN KA) BUS-UTIL-SERVI 3P Duty: 17.209 7.90 Z1= 0.8065 23.739 20.615 SLG DUTY: 22.245 7.72 Z2= 0.8065 30.550 4160. VOLTS LN/LN: 14.903 Z0= 0.2588 LN/LN/GND: 21.764 ( 31.447 GND RETURN KA) BUS-XF2-COMED 3P Duty: 2.661 7.35 Z1= 1.7396 3.620 3.161 SLG DUTY: Z2= 1.7396 0.000 12470. VOLTS LN/LN: 2.305 Z0= INFINITE LN/LN/GND: 2.305 ( 0.000 GND RETURN KA) BUS-XF2-COMED 3P Duty: 2.661 7.35 Z1= 1.7397 3.620 3.160 SLG DUTY: Z2= 1.7397 0.000 12470. VOLTS LN/LN: 2.305 Z0= INFINITE LN/LN/GND: 2.305 ( 0.000 GND RETURN KA)

JESSE BROWN VA 8-9

Jun 07, 2017 15:51:15 UNBALANCED LOW VOLTAGE DUTY PAGE 2 U N B A L A N C E D F A U L T R E P O R T (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOCATION FAULT KA X/R EQUIVALENT (PU) ASYM. KA AT 0.5 CYCLES VOLTAGE DUTIES (RMS) FAULT IMPEDANCE * MAX. RMS AVG. RMS * ============================================================================== BUS-XF2-SUB #1 3P Duty: 13.104 3.99 Z1= 1.0591 15.583 14.371 SLG DUTY: 13.627 2.75 Z2= 1.0591 14.945 4160. VOLTS LN/LN: 11.348 Z0= 0.9736 LN/LN/GND: 14.557 ( 14.024 GND RETURN KA) BUS-XF2-SUB #1 3P Duty: 17.671 5.32 Z1= 6.8068 22.449 20.135 SLG DUTY: 18.635 5.42 Z2= 6.8068 23.771 480. VOLTS LN/LN: 15.303 Z0= 5.7499 LN/LN/GND: 18.145 ( 19.711 GND RETURN KA) BUS-XF2-SUB #1 3P Duty: 17.671 5.32 Z1= 6.8068 22.449 20.135 SLG DUTY: 18.635 5.42 Z2= 6.8068 23.771 480. VOLTS LN/LN: 15.303 Z0= 5.7499 LN/LN/GND: 18.145 ( 19.711 GND RETURN KA) BUS-XF2-SUB #1 3P Duty: 13.104 3.99 Z1= 1.0591 15.583 14.371 SLG DUTY: 13.627 2.75 Z2= 1.0591 14.945 4160. VOLTS LN/LN: 11.348 Z0= 0.9736 LN/LN/GND: 14.557 ( 14.024 GND RETURN KA) BUS-XF2-SUB #1 3P Duty: 10.505 3.03 Z1= 1.3211 11.755 11.139 SLG DUTY: 9.675 2.10 Z2= 1.3211 10.149 4160. VOLTS LN/LN: 9.098 Z0= 1.7146 LN/LN/GND: 10.996 ( 8.856 GND RETURN KA) BUS-XF2-SUB #4 3P Duty: 10.505 3.03 Z1= 1.3211 11.755 11.139 SLG DUTY: 9.675 2.10 Z2= 1.3211 10.149 4160. VOLTS LN/LN: 9.098 Z0= 1.7146 LN/LN/GND: 10.996 ( 8.856 GND RETURN KA) BUS-XF2-SUB #4 3P Duty: 34.783 4.46 Z1= 7.9801 42.436 38.709 SLG DUTY: 36.804 4.58 Z2= 7.9801 45.183 208. VOLTS LN/LN: 30.123 Z0= 6.6666 LN/LN/GND: 35.705 ( 39.072 GND RETURN KA) BUS-XF2-SUB #4 3P Duty: 34.783 4.46 Z1= 7.9801 42.436 38.709 SLG DUTY: 36.804 4.58 Z2= 7.9801 45.183 208. VOLTS LN/LN: 30.123 Z0= 6.6666 LN/LN/GND: 35.705 ( 39.072 GND RETURN KA)

JESSE BROWN VA 8-10

Jun 07, 2017 15:51:15 UNBALANCED LOW VOLTAGE DUTY PAGE 3 U N B A L A N C E D F A U L T R E P O R T (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOCATION FAULT KA X/R EQUIVALENT (PU) ASYM. KA AT 0.5 CYCLES VOLTAGE DUTIES (RMS) FAULT IMPEDANCE * MAX. RMS AVG. RMS * ============================================================================== BUS-XF2-SUB #8 3P Duty: 15.631 4.20 Z1= 0.8879 18.815 17.262 SLG DUTY: 18.280 2.75 Z2= 0.8879 20.057 4160. VOLTS LN/LN: 13.537 Z0= 0.5527 LN/LN/GND: 19.443 ( 21.531 GND RETURN KA) BUS-XF2-SUB #8 3P Duty: 15.631 4.20 Z1= 0.8879 18.815 17.262 SLG DUTY: 18.280 2.75 Z2= 0.8879 20.057 4160. VOLTS LN/LN: 13.537 Z0= 0.5527 LN/LN/GND: 19.443 ( 21.531 GND RETURN KA) BUS-XF2-VAA PR 3P Duty: 12.726 4.24 Z1= 1.0906 15.347 14.068 SLG DUTY: 13.064 2.99 Z2= 1.0906 14.579 4160. VOLTS LN/LN: 11.021 Z0= 1.0338 LN/LN/GND: 13.883 ( 13.303 GND RETURN KA) BUS-XF2-VAA SE 3P Duty: 24.179 5.85 Z1= 4.9745 31.373 27.901 SLG DUTY: 26.081 6.03 Z2= 4.9745 34.062 480. VOLTS LN/LN: 20.940 Z0= 3.8867 LN/LN/GND: 25.149 ( 28.307 GND RETURN KA) BUS-XF2-VBA PR 3P Duty: 12.726 4.24 Z1= 1.0906 15.347 14.068 SLG DUTY: 13.064 2.99 Z2= 1.0906 14.579 4160. VOLTS LN/LN: 11.021 Z0= 1.0338 LN/LN/GND: 13.883 ( 13.303 GND RETURN KA) BUS-XF2-VBA SE 3P Duty: 24.179 5.85 Z1= 4.9745 31.373 27.901 SLG DUTY: 26.081 6.03 Z2= 4.9745 34.062 480. VOLTS LN/LN: 20.940 Z0= 3.8867 LN/LN/GND: 25.149 ( 28.307 GND RETURN KA) PNL CHILLER #1 3P Duty: 15.535 5.06 Z1= 0.8934 19.512 17.583 SLG DUTY: 18.254 3.59 Z2= 0.8934 21.189 4160. VOLTS LN/LN: 13.453 Z0= 0.5177 LN/LN/GND: 18.844 ( 21.907 GND RETURN KA) PNL CHILLER #2 3P Duty: 15.535 5.06 Z1= 0.8934 19.512 17.583 SLG DUTY: 18.254 3.59 Z2= 0.8934 21.189 4160. VOLTS LN/LN: 13.453 Z0= 0.5177 LN/LN/GND: 18.844 ( 21.907 GND RETURN KA)

JESSE BROWN VA 8-11

Jun 07, 2017 15:51:15 UNBALANCED LOW VOLTAGE DUTY PAGE 4 U N B A L A N C E D F A U L T R E P O R T (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOCATION FAULT KA X/R EQUIVALENT (PU) ASYM. KA AT 0.5 CYCLES VOLTAGE DUTIES (RMS) FAULT IMPEDANCE * MAX. RMS AVG. RMS * ============================================================================== SWBD PARKING G 3P Duty: 17.096 5.38 Z1= 7.0355 21.776 19.511 SLG DUTY: 18.051 5.48 Z2= 7.0355 23.080 480. VOLTS LN/LN: 14.806 Z0= 5.9200 LN/LN/GND: 17.571 ( 19.117 GND RETURN KA) SWBD PARKING G 3P Duty: 17.096 5.38 Z1= 7.0355 21.776 19.511 SLG DUTY: 18.051 5.48 Z2= 7.0355 23.080 480. VOLTS LN/LN: 14.806 Z0= 5.9200 LN/LN/GND: 17.571 ( 19.117 GND RETURN KA) SWBD V AA 3P Duty: 22.732 4.66 Z1= 5.2913 28.013 25.445 SLG DUTY: 23.585 4.05 Z2= 5.2913 28.136 480. VOLTS LN/LN: 19.686 Z0= 4.7333 LN/LN/GND: 23.835 ( 24.479 GND RETURN KA) SWBD VBA 3P Duty: 22.732 4.66 Z1= 5.2913 28.013 25.445 SLG DUTY: 23.585 4.05 Z2= 5.2913 28.136 480. VOLTS LN/LN: 19.686 Z0= 4.7333 LN/LN/GND: 23.835 ( 24.479 GND RETURN KA) SWGR BEDTOWER 3P Duty: 15.488 5.93 Z1= 0.8961 20.155 17.903 SLG DUTY: 18.246 4.58 Z2= 0.8961 22.399 4160. VOLTS LN/LN: 13.413 Z0= 0.4993 LN/LN/GND: 18.349 ( 22.110 GND RETURN KA) SWGR BEDTOWER 3P Duty: 14.258 5.56 Z1= 0.9734 18.297 16.344 SLG DUTY: 15.818 4.22 Z2= 0.9734 19.060 4160. VOLTS LN/LN: 12.348 Z0= 0.6965 LN/LN/GND: 16.044 ( 17.688 GND RETURN KA) SWGR BLDG 1C 3P Duty: 15.021 5.19 Z1= 0.9239 18.975 17.059 SLG DUTY: 17.235 3.76 Z2= 0.9239 20.221 4160. VOLTS LN/LN: 13.009 Z0= 0.5865 LN/LN/GND: 17.664 ( 20.063 GND RETURN KA) SWGR BLDG 1C A 3P Duty: 15.021 5.19 Z1= 0.9239 18.975 17.059 SLG DUTY: 17.235 3.76 Z2= 0.9239 20.221 4160. VOLTS LN/LN: 13.009 Z0= 0.5865 LN/LN/GND: 17.664 ( 20.063 GND RETURN KA)

JESSE BROWN VA 8-12

Jun 07, 2017 15:51:15 UNBALANCED LOW VOLTAGE DUTY PAGE 5 U N B A L A N C E D F A U L T R E P O R T (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOCATION FAULT KA X/R EQUIVALENT (PU) ASYM. KA AT 0.5 CYCLES VOLTAGE DUTIES (RMS) FAULT IMPEDANCE * MAX. RMS AVG. RMS * ============================================================================== SWGR CHILLER B 3P Duty: 15.886 6.00 Z1= 0.8737 20.722 18.389 SLG DUTY: 19.093 4.64 Z2= 0.8737 23.508 4160. VOLTS LN/LN: 13.757 Z0= 0.4431 LN/LN/GND: 19.229 ( 23.822 GND RETURN KA) SWGR ESG 3P Duty: 16.926 7.49 Z1= 0.8199 23.112 20.148 SLG DUTY: 21.539 6.87 Z2= 0.8199 28.906 4160. VOLTS LN/LN: 14.659 Z0= 0.2940 LN/LN/GND: 21.169 ( 29.597 GND RETURN KA) SWGR MV A 3P Duty: 17.210 7.90 Z1= 0.8064 23.739 20.615 SLG DUTY: 22.242 7.69 Z2= 0.8064 30.526 4160. VOLTS LN/LN: 14.904 Z0= 0.2592 LN/LN/GND: 21.764 ( 31.431 GND RETURN KA) SWGR MV B 3P Duty: 17.210 7.90 Z1= 0.8064 23.739 20.615 SLG DUTY: 22.242 7.69 Z2= 0.8064 30.526 4160. VOLTS LN/LN: 14.904 Z0= 0.2592 LN/LN/GND: 21.764 ( 31.431 GND RETURN KA) SWGR SUB #8 3P Duty: 36.745 4.81 Z1= 7.5540 45.615 41.306 SLG DUTY: 38.243 4.83 Z2= 7.5540 47.538 208. VOLTS LN/LN: 31.822 Z0= 6.6666 LN/LN/GND: 37.509 ( 39.868 GND RETURN KA) SWGR SUB #8 A 3P Duty: 36.745 4.81 Z1= 7.5540 45.615 41.306 SLG DUTY: 38.243 4.83 Z2= 7.5540 47.538 208. VOLTS LN/LN: 31.822 Z0= 6.6666 LN/LN/GND: 37.509 ( 39.868 GND RETURN KA)

JESSE BROWN VA 8-13

Jun 07, 2017 15:51:15 UNBALANCED LOW VOLTAGE DUTY PAGE 6 F A U L T S T U D Y S U M M A R Y (FOR APPLICATION OF LOW VOLTAGE BREAKERS) PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO BUS RECORD VOLTAGE A V A I L A B L E F A U L T D U T I E S (KA) NO NAME L-L 3 PHASE X/R LINE/GRND X/R ============================================================================== BUS-PARKING GA 4160. 12.420 4.11 12.568 2.90 BUS-PARKING GA 4160. 12.420 4.11 12.568 2.90 BUS-SW SS MANU 4160. 16.216 6.38 19.844 5.12 BUS-SW SS MANU 4160. 16.216 6.38 19.844 5.12 BUS-UTIL-COMED 4160. 17.211 7.90 22.248 7.72 BUS-UTIL-SERVI 4160. 17.209 7.90 22.245 7.72 BUS-XF2-COMED 12470. 2.661 7.35 BUS-XF2-COMED 12470. 2.661 7.35 BUS-XF2-SUB #1 4160. 13.104 3.99 13.627 2.75 BUS-XF2-SUB #1 480. 17.671 5.32 18.635 5.42 BUS-XF2-SUB #1 480. 17.671 5.32 18.635 5.42 BUS-XF2-SUB #1 4160. 13.104 3.99 13.627 2.75 BUS-XF2-SUB #1 4160. 10.505 3.03 9.675 2.10 BUS-XF2-SUB #4 4160. 10.505 3.03 9.675 2.10 BUS-XF2-SUB #4 208. 34.783 4.46 36.804 4.58 BUS-XF2-SUB #4 208. 34.783 4.46 36.804 4.58 BUS-XF2-SUB #8 4160. 15.631 4.20 18.280 2.75 BUS-XF2-SUB #8 4160. 15.631 4.20 18.280 2.75 BUS-XF2-VAA PR 4160. 12.726 4.24 13.064 2.99 BUS-XF2-VAA SE 480. 24.179 5.85 26.081 6.03 BUS-XF2-VBA PR 4160. 12.726 4.24 13.064 2.99 BUS-XF2-VBA SE 480. 24.179 5.85 26.081 6.03 PNL CHILLER #1 4160. 15.535 5.06 18.254 3.59 PNL CHILLER #2 4160. 15.535 5.06 18.254 3.59 SWBD PARKING G 480. 17.096 5.38 18.051 5.48 SWBD PARKING G 480. 17.096 5.38 18.051 5.48 SWBD V AA 480. 22.732 4.66 23.585 4.05 SWBD VBA 480. 22.732 4.66 23.585 4.05 SWGR BEDTOWER 4160. 15.488 5.93 18.246 4.58 SWGR BEDTOWER 4160. 14.258 5.56 15.818 4.22 SWGR BLDG 1C 4160. 15.021 5.19 17.235 3.76 SWGR BLDG 1C A 4160. 15.021 5.19 17.235 3.76 SWGR CHILLER B 4160. 15.886 6.00 19.093 4.64 SWGR ESG 4160. 16.926 7.49 21.539 6.87 SWGR MV A 4160. 17.210 7.90 22.242 7.69 SWGR MV B 4160. 17.210 7.90 22.242 7.69 SWGR SUB #8 208. 36.745 4.81 38.243 4.83 SWGR SUB #8 A 208. 36.745 4.81 38.243 4.83 38 FAULTED BUSES, 39 BRANCHES, 2 CONTRIBUTIONS UNBALANCED FAULTS REQUESTED *** SHORT CIRCUIT STUDY COMPLETE ***

JESSE BROWN VA 8-14

Jun 07, 2017 15:51:15 THREE PHASE MOMENTARY DUTY PAGE 1 T H R E E P H A S E M O M E N T A R Y D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== BUS-PARKING GA E/Z: 12.420 KA AT -76.32 DEG ( 89.49 MVA) X/R: 4.11 SYM*1.6: 19.872 KA MOMENTARY BASED ON X/R: 14.870 KA SYM*2.7: 33.533 KA CREST BASED ON X/R: 25.741 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0457 + J 0.1879 OHMS XF2-PARKING GA SWBD PARKING G 0.000 KA ANG: 23.61 CBL-XF2-PARKIN BUS-XF2-VAA PR 12.420 KA ANG: 103.68 BUS-PARKING GA E/Z: 12.420 KA AT -76.32 DEG ( 89.49 MVA) X/R: 4.11 SYM*1.6: 19.872 KA MOMENTARY BASED ON X/R: 14.870 KA SYM*2.7: 33.533 KA CREST BASED ON X/R: 25.741 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0457 + J 0.1879 OHMS XF2-PARKING GA SWBD PARKING G 0.000 KA ANG: 23.61 CBL-XF2-PARKIN BUS-XF2-VBA PR 12.420 KA ANG: 103.68 BUS-SW SS MANU E/Z: 16.216 KA AT -81.09 DEG ( 116.84 MVA) X/R: 6.38 SYM*1.6: 25.946 KA MOMENTARY BASED ON X/R: 21.434 KA SYM*2.7: 43.784 KA CREST BASED ON X/R: 36.950 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0229 + J 0.1463 OHMS CBL-CHILLER BL SWGR MV A 16.216 KA ANG: -81.09 BUS-SW SS MANU E/Z: 16.216 KA AT -81.09 DEG ( 116.84 MVA) X/R: 6.38 SYM*1.6: 25.946 KA MOMENTARY BASED ON X/R: 21.434 KA SYM*2.7: 43.784 KA CREST BASED ON X/R: 36.950 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0229 + J 0.1463 OHMS CBL-CHILLER BL SWGR CHILLER B 0.000 KA ANG: -36.09 CBL-CHILLER BL SWGR MV B 16.216 KA ANG: -81.09 BUS-UTIL-COMED E/Z: 17.211 KA AT -82.79 DEG ( 124.01 MVA) X/R: 7.90 SYM*1.6: 27.538 KA MOMENTARY BASED ON X/R: 23.743 KA SYM*2.7: 46.470 KA CREST BASED ON X/R: 40.696 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1384 OHMS CONTRIBUTIONS: UTIL-COMED-Y71 8.700 KA ANG: -82.87 CBL-MV B SWGR MV B 8.511 KA ANG: -262.70 BUS-UTIL-SERVI E/Z: 17.209 KA AT -82.78 DEG ( 124.00 MVA) X/R: 7.90 SYM*1.6: 27.534 KA MOMENTARY BASED ON X/R: 23.739 KA SYM*2.7: 46.464 KA CREST BASED ON X/R: 40.689 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1385 OHMS CONTRIBUTIONS: UTIL-COMED-Y71 8.600 KA ANG: -82.87 CBL-MV A SWGR MV A 8.609 KA ANG: -82.69

JESSE BROWN VA 8-15

Jun 07, 2017 15:51:15 THREE PHASE MOMENTARY DUTY PAGE 2 T H R E E P H A S E M O M E N T A R Y D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== BUS-XF2-COMED E/Z: 2.661 KA AT -82.25 DEG ( 57.48 MVA) X/R: 7.35 SYM*1.6: 4.258 KA MOMENTARY BASED ON X/R: 3.620 KA SYM*2.7: 7.186 KA CREST BASED ON X/R: 6.218 KA VOLTAGE: 12470. EQUIV. IMPEDANCE= 0.3648 + J 2.6805 OHMS XF2-COMED Y714 BUS-UTIL-COMED 2.661 KA ANG: -82.25 BUS-XF2-COMED E/Z: 2.661 KA AT -82.25 DEG ( 57.48 MVA) X/R: 7.35 SYM*1.6: 4.258 KA MOMENTARY BASED ON X/R: 3.620 KA SYM*2.7: 7.185 KA CREST BASED ON X/R: 6.218 KA VOLTAGE: 12470. EQUIV. IMPEDANCE= 0.3648 + J 2.6806 OHMS XF2-COMED Y714 BUS-UTIL-SERVI 2.661 KA ANG: -82.25 BUS-XF2-SUB #1 E/Z: 13.104 KA AT -75.93 DEG ( 94.42 MVA) X/R: 3.99 SYM*1.6: 20.966 KA MOMENTARY BASED ON X/R: 15.583 KA SYM*2.7: 35.380 KA CREST BASED ON X/R: 26.966 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0445 + J 0.1778 OHMS XF2-SUB #11 A BUS-XF2-SUB #1 0.000 KA ANG: -155.92 CBL-BLDG 11 SU SWGR MV A 13.104 KA ANG: -75.93 BUS-XF2-SUB #1 VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) BUS-XF2-SUB #1 VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) BUS-XF2-SUB #1 E/Z: 13.104 KA AT -75.93 DEG ( 94.42 MVA) X/R: 3.99 SYM*1.6: 20.966 KA MOMENTARY BASED ON X/R: 15.583 KA SYM*2.7: 35.380 KA CREST BASED ON X/R: 26.966 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0445 + J 0.1778 OHMS XF2-SUB #11 B BUS-XF2-SUB #1 0.000 KA ANG: -155.92 CBL-BLDG 11 SU SWGR MV B 13.104 KA ANG: -75.93 BUS-XF2-SUB #1 E/Z: 10.505 KA AT -71.76 DEG ( 75.69 MVA) X/R: 3.03 SYM*1.6: 16.808 KA MOMENTARY BASED ON X/R: 11.755 KA SYM*2.7: 28.364 KA CREST BASED ON X/R: 20.132 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0716 + J 0.2171 OHMS XF2-SUB #4 B BUS-XF2-SUB #4 0.000 KA ANG: -150.22 CBL-SUB #4 B BUS-XF2-SUB #1 10.505 KA ANG: -71.76 BUS-XF2-SUB #4 E/Z: 10.505 KA AT -71.76 DEG ( 75.69 MVA) X/R: 3.03 SYM*1.6: 16.808 KA MOMENTARY BASED ON X/R: 11.755 KA SYM*2.7: 28.364 KA CREST BASED ON X/R: 20.132 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0716 + J 0.2171 OHMS XF2-SUB #4 A BUS-XF2-SUB #4 0.000 KA ANG: -150.22 CBL-SUB #4 A BUS-XF2-SUB #1 10.505 KA ANG: -71.76 BUS-XF2-SUB #4 VOLTAGE: 208. ( SEE LOW VOLTAGE REPORT ) BUS-XF2-SUB #4 VOLTAGE: 208. ( SEE LOW VOLTAGE REPORT )

JESSE BROWN VA 8-16

Jun 07, 2017 15:51:15 THREE PHASE MOMENTARY DUTY PAGE 3 T H R E E P H A S E M O M E N T A R Y D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== BUS-XF2-SUB #8 E/Z: 15.631 KA AT -76.62 DEG ( 112.63 MVA) X/R: 4.20 SYM*1.6: 25.010 KA MOMENTARY BASED ON X/R: 18.815 KA SYM*2.7: 42.205 KA CREST BASED ON X/R: 32.578 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0356 + J 0.1495 OHMS XF2-SUB #8 SWGR SUB #8 0.000 KA ANG: -155.08 CBL-BLDG 26 SU SWGR MV B 15.631 KA ANG: -76.62 BUS-XF2-SUB #8 E/Z: 15.631 KA AT -76.62 DEG ( 112.63 MVA) X/R: 4.20 SYM*1.6: 25.010 KA MOMENTARY BASED ON X/R: 18.815 KA SYM*2.7: 42.205 KA CREST BASED ON X/R: 32.578 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0356 + J 0.1495 OHMS XF2-SUB #8 A SWGR SUB #8 A 0.000 KA ANG: -155.08 CBL-BLDG 26 SU SWGR MV A 15.631 KA ANG: -76.62 BUS-XF2-VAA PR E/Z: 12.726 KA AT -76.73 DEG ( 91.69 MVA) X/R: 4.24 SYM*1.6: 20.361 KA MOMENTARY BASED ON X/R: 15.347 KA SYM*2.7: 34.360 KA CREST BASED ON X/R: 26.575 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0433 + J 0.1837 OHMS CBL-XF2-PARKIN BUS-PARKING GA 0.000 KA ANG: 42.97 CBL-F2 SWGR MV A 12.726 KA ANG: -76.73 BUS-XF2-VAA SE VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) BUS-XF2-VBA PR E/Z: 12.726 KA AT -76.73 DEG ( 91.69 MVA) X/R: 4.24 SYM*1.6: 20.361 KA MOMENTARY BASED ON X/R: 15.347 KA SYM*2.7: 34.360 KA CREST BASED ON X/R: 26.575 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0433 + J 0.1837 OHMS CBL-XF2-PARKIN BUS-PARKING GA 0.000 KA ANG: 42.97 CBL-F1 SWGR MV B 12.726 KA ANG: -76.73 BUS-XF2-VBA SE VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) PNL CHILLER #1 E/Z: 15.535 KA AT -78.82 DEG ( 111.93 MVA) X/R: 5.06 SYM*1.6: 24.855 KA MOMENTARY BASED ON X/R: 19.512 KA SYM*2.7: 41.943 KA CREST BASED ON X/R: 33.775 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0300 + J 0.1517 OHMS CBL-CHILLER #1 SWGR CHILLER B 15.535 KA ANG: -78.82 PNL CHILLER #2 E/Z: 15.535 KA AT -78.82 DEG ( 111.93 MVA) X/R: 5.06 SYM*1.6: 24.855 KA MOMENTARY BASED ON X/R: 19.512 KA SYM*2.7: 41.943 KA CREST BASED ON X/R: 33.775 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0300 + J 0.1517 OHMS CBL-CHILLER #2 SWGR CHILLER B 15.535 KA ANG: -78.82

JESSE BROWN VA 8-17

Jun 07, 2017 15:51:15 THREE PHASE MOMENTARY DUTY PAGE 4 T H R E E P H A S E M O M E N T A R Y D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== SWBD PARKING G VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) SWBD PARKING G VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) SWBD V AA VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) SWBD VBA VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) SWGR BEDTOWER E/Z: 15.488 KA AT -80.43 DEG ( 111.59 MVA) X/R: 5.93 SYM*1.6: 24.780 KA MOMENTARY BASED ON X/R: 20.155 KA SYM*2.7: 41.816 KA CREST BASED ON X/R: 34.800 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0258 + J 0.1529 OHMS CBL-BEDTOWER B SWGR MV B 15.488 KA ANG: -80.43 SWGR BEDTOWER E/Z: 14.258 KA AT -79.81 DEG ( 102.74 MVA) X/R: 5.56 SYM*1.6: 22.813 KA MOMENTARY BASED ON X/R: 18.297 KA SYM*2.7: 38.498 KA CREST BASED ON X/R: 31.630 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0298 + J 0.1658 OHMS CBL-BEDTOWER B SWGR MV A 14.258 KA ANG: -79.81 SWGR BLDG 1C E/Z: 15.021 KA AT -79.09 DEG ( 108.23 MVA) X/R: 5.19 SYM*1.6: 24.034 KA MOMENTARY BASED ON X/R: 18.975 KA SYM*2.7: 40.557 KA CREST BASED ON X/R: 32.836 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0303 + J 0.1570 OHMS CBL-BLDG 1C SWGR MV B 15.021 KA ANG: -79.09 SWGR BLDG 1C A E/Z: 15.021 KA AT -79.09 DEG ( 108.23 MVA) X/R: 5.19 SYM*1.6: 24.034 KA MOMENTARY BASED ON X/R: 18.975 KA SYM*2.7: 40.557 KA CREST BASED ON X/R: 32.836 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0303 + J 0.1570 OHMS CBL-BLDG 1C A SWGR MV A 15.021 KA ANG: -79.09 SWGR CHILLER B E/Z: 15.886 KA AT -80.54 DEG ( 114.46 MVA) X/R: 6.00 SYM*1.6: 25.417 KA MOMENTARY BASED ON X/R: 20.722 KA SYM*2.7: 42.891 KA CREST BASED ON X/R: 35.772 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0249 + J 0.1491 OHMS CBL-CHILLER #2 PNL CHILLER #2 0.000 KA ANG: -35.54 CBL-CHILLER BL BUS-SW SS MANU 15.886 KA ANG: -80.54 SWGR ESG E/Z: 16.926 KA AT -82.40 DEG ( 121.96 MVA) X/R: 7.49 SYM*1.6: 27.082 KA MOMENTARY BASED ON X/R: 23.112 KA SYM*2.7: 45.701 KA CREST BASED ON X/R: 39.675 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0188 + J 0.1406 OHMS CBL-ESG-F1 SWGR MV B 16.926 KA ANG: -82.40

JESSE BROWN VA 8-18

Jun 07, 2017 15:51:15 THREE PHASE MOMENTARY DUTY PAGE 5 T H R E E P H A S E M O M E N T A R Y D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== SWGR MV A E/Z: 17.210 KA AT -82.78 DEG ( 124.00 MVA) X/R: 7.90 SYM*1.6: 27.535 KA MOMENTARY BASED ON X/R: 23.739 KA SYM*2.7: 46.466 KA CREST BASED ON X/R: 40.690 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1385 OHMS CBL-BEDTOWER B SWGR BEDTOWER 0.000 KA ANG: 31.38 CBL-MV A BUS-UTIL-SERVI 8.556 KA ANG: 97.21 BD MV TIE SWGR MV B 8.653 KA ANG: -82.78 SWGR MV B E/Z: 17.210 KA AT -82.78 DEG ( 124.00 MVA) X/R: 7.90 SYM*1.6: 27.535 KA MOMENTARY BASED ON X/R: 23.739 KA SYM*2.7: 46.466 KA CREST BASED ON X/R: 40.690 KA VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1385 OHMS CBL-BEDTOWER B SWGR BEDTOWER 0.000 KA ANG: -37.78 CBL-MV B BUS-UTIL-COMED 8.655 KA ANG: -82.78 BD MV TIE SWGR MV A 8.554 KA ANG: 97.21 SWGR SUB #8 VOLTAGE: 208. ( SEE LOW VOLTAGE REPORT ) SWGR SUB #8 A VOLTAGE: 208. ( SEE LOW VOLTAGE REPORT )

JESSE BROWN VA 8-19

Jun 07, 2017 15:51:15 UNBALANCED MOMENTARY DUTY PAGE 1 U N B A L A N C E D M O M E N T A R Y D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOCATION FAULT E/Z X/R EQUIVALENT MOMENTARY FAULT DUTIES VOLTAGE TYPE KA IMPEDANCE (PU) E/Z * 1.6 @ 0.5 CYCLE ============================================================================== 3P Duty: 12.42 4.1 Z1= 1.1175 19.87 14.87 BUS-PARKING GA SLG DUTY: 12.57 2.9 Z2= 1.1175 20.11 13.93 4160. VOLTS LN/LN: 10.76 Z0= 1.1075 LN/LN/GND: 13.45 ( 12.61 GND RETURN KA) 3P Duty: 12.42 4.1 Z1= 1.1175 19.87 14.87 BUS-PARKING GA SLG DUTY: 12.57 2.9 Z2= 1.1175 20.11 13.93 4160. VOLTS LN/LN: 10.76 Z0= 1.1075 LN/LN/GND: 13.45 ( 12.61 GND RETURN KA) 3P Duty: 16.22 6.4 Z1= 0.8558 25.95 21.43 BUS-SW SS MANU SLG DUTY: 19.84 5.1 Z2= 0.8558 31.75 24.99 4160. VOLTS LN/LN: 14.04 Z0= 0.3930 LN/LN/GND: 19.85 ( 25.49 GND RETURN KA) 3P Duty: 16.22 6.4 Z1= 0.8558 25.95 21.43 BUS-SW SS MANU SLG DUTY: 19.84 5.1 Z2= 0.8558 31.75 24.99 4160. VOLTS LN/LN: 14.04 Z0= 0.3930 LN/LN/GND: 19.85 ( 25.49 GND RETURN KA) 3P Duty: 17.21 7.9 Z1= 0.8064 27.54 23.74 BUS-UTIL-COMED SLG DUTY: 22.25 7.7 Z2= 0.8064 35.60 30.56 4160. VOLTS LN/LN: 14.91 Z0= 0.2587 LN/LN/GND: 21.77 ( 31.45 GND RETURN KA) 3P Duty: 17.21 7.9 Z1= 0.8065 27.53 23.74 BUS-UTIL-SERVI SLG DUTY: 22.25 7.7 Z2= 0.8065 35.59 30.55 4160. VOLTS LN/LN: 14.90 Z0= 0.2588 LN/LN/GND: 21.76 ( 31.45 GND RETURN KA) 3P Duty: 2.66 7.3 Z1= 1.7396 4.26 3.62 BUS-XF2-COMED SLG DUTY: Z2= 1.7396 12470. VOLTS LN/LN 2.30 Z0= INFINITE LN/LN/GND: 2.30 ( 0.00 GND RETURN KA) 3P Duty: 2.66 7.3 Z1= 1.7397 4.26 3.62 BUS-XF2-COMED SLG DUTY: Z2= 1.7397 12470. VOLTS LN/LN 2.30 Z0= INFINITE LN/LN/GND: 2.30 ( 0.00 GND RETURN KA)

JESSE BROWN VA 8-20

Jun 07, 2017 15:51:15 UNBALANCED MOMENTARY DUTY PAGE 2 U N B A L A N C E D M O M E N T A R Y D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOCATION FAULT E/Z X/R EQUIVALENT MOMENTARY FAULT DUTIES VOLTAGE TYPE KA IMPEDANCE (PU) E/Z * 1.6 @ 0.5 CYCLE ============================================================================== 3P Duty: 13.10 4.0 Z1= 1.0591 20.97 15.58 BUS-XF2-SUB #1 SLG DUTY: 13.63 2.7 Z2= 1.0591 21.80 14.95 4160. VOLTS LN/LN: 11.35 Z0= 0.9736 LN/LN/GND: 14.56 ( 14.02 GND RETURN KA) 3P Duty: 13.10 4.0 Z1= 1.0591 20.97 15.58 BUS-XF2-SUB #1 SLG DUTY: 13.63 2.7 Z2= 1.0591 21.80 14.95 4160. VOLTS LN/LN: 11.35 Z0= 0.9736 LN/LN/GND: 14.56 ( 14.02 GND RETURN KA) 3P Duty: 10.51 3.0 Z1= 1.3211 16.81 11.76 BUS-XF2-SUB #1 SLG DUTY: 9.68 2.1 Z2= 1.3211 15.48 10.15 4160. VOLTS LN/LN: 9.10 Z0= 1.7146 LN/LN/GND: 11.00 ( 8.86 GND RETURN KA) 3P Duty: 10.51 3.0 Z1= 1.3211 16.81 11.76 BUS-XF2-SUB #4 SLG DUTY: 9.68 2.1 Z2= 1.3211 15.48 10.15 4160. VOLTS LN/LN: 9.10 Z0= 1.7146 LN/LN/GND: 11.00 ( 8.86 GND RETURN KA) 3P Duty: 15.63 4.2 Z1= 0.8879 25.01 18.81 BUS-XF2-SUB #8 SLG DUTY: 18.28 2.8 Z2= 0.8879 29.25 20.06 4160. VOLTS LN/LN: 13.54 Z0= 0.5527 LN/LN/GND: 19.44 ( 21.53 GND RETURN KA) 3P Duty: 15.63 4.2 Z1= 0.8879 25.01 18.81 BUS-XF2-SUB #8 SLG DUTY: 18.28 2.8 Z2= 0.8879 29.25 20.06 4160. VOLTS LN/LN: 13.54 Z0= 0.5527 LN/LN/GND: 19.44 ( 21.53 GND RETURN KA) 3P Duty: 12.73 4.2 Z1= 1.0906 20.36 15.35 BUS-XF2-VAA PR SLG DUTY: 13.06 3.0 Z2= 1.0906 20.90 14.58 4160. VOLTS LN/LN: 11.02 Z0= 1.0338 LN/LN/GND: 13.88 ( 13.30 GND RETURN KA) 3P Duty: 12.73 4.2 Z1= 1.0906 20.36 15.35 BUS-XF2-VBA PR SLG DUTY: 13.06 3.0 Z2= 1.0906 20.90 14.58 4160. VOLTS LN/LN: 11.02 Z0= 1.0338 LN/LN/GND: 13.88 ( 13.30 GND RETURN KA)

JESSE BROWN VA 8-21

Jun 07, 2017 15:51:15 UNBALANCED MOMENTARY DUTY PAGE 3 U N B A L A N C E D M O M E N T A R Y D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOCATION FAULT E/Z X/R EQUIVALENT MOMENTARY FAULT DUTIES VOLTAGE TYPE KA IMPEDANCE (PU) E/Z * 1.6 @ 0.5 CYCLE ============================================================================== 3P Duty: 15.53 5.1 Z1= 0.8934 24.86 19.51 PNL CHILLER #1 SLG DUTY: 18.25 3.6 Z2= 0.8934 29.21 21.19 4160. VOLTS LN/LN: 13.45 Z0= 0.5177 LN/LN/GND: 18.84 ( 21.91 GND RETURN KA) 3P Duty: 15.53 5.1 Z1= 0.8934 24.86 19.51 PNL CHILLER #2 SLG DUTY: 18.25 3.6 Z2= 0.8934 29.21 21.19 4160. VOLTS LN/LN: 13.45 Z0= 0.5177 LN/LN/GND: 18.84 ( 21.91 GND RETURN KA) 3P Duty: 15.49 5.9 Z1= 0.8961 24.78 20.15 SWGR BEDTOWER SLG DUTY: 18.25 4.6 Z2= 0.8961 29.19 22.40 4160. VOLTS LN/LN: 13.41 Z0= 0.4993 LN/LN/GND: 18.35 ( 22.11 GND RETURN KA) 3P Duty: 14.26 5.6 Z1= 0.9734 22.81 18.30 SWGR BEDTOWER SLG DUTY: 15.82 4.2 Z2= 0.9734 25.31 19.06 4160. VOLTS LN/LN: 12.35 Z0= 0.6965 LN/LN/GND: 16.04 ( 17.69 GND RETURN KA) 3P Duty: 15.02 5.2 Z1= 0.9239 24.03 18.97 SWGR BLDG 1C SLG DUTY: 17.24 3.8 Z2= 0.9239 27.58 20.22 4160. VOLTS LN/LN: 13.01 Z0= 0.5865 LN/LN/GND: 17.66 ( 20.06 GND RETURN KA) 3P Duty: 15.02 5.2 Z1= 0.9239 24.03 18.97 SWGR BLDG 1C A SLG DUTY: 17.24 3.8 Z2= 0.9239 27.58 20.22 4160. VOLTS LN/LN: 13.01 Z0= 0.5865 LN/LN/GND: 17.66 ( 20.06 GND RETURN KA) 3P Duty: 15.89 6.0 Z1= 0.8737 25.42 20.72 SWGR CHILLER B SLG DUTY: 19.09 4.6 Z2= 0.8737 30.55 23.51 4160. VOLTS LN/LN: 13.76 Z0= 0.4431 LN/LN/GND: 19.23 ( 23.82 GND RETURN KA) 3P Duty: 16.93 7.5 Z1= 0.8199 27.08 23.11 SWGR ESG SLG DUTY: 21.54 6.9 Z2= 0.8199 34.46 28.91 4160. VOLTS LN/LN: 14.66 Z0= 0.2940 LN/LN/GND: 21.17 ( 29.60 GND RETURN KA)

JESSE BROWN VA 8-22

Jun 07, 2017 15:51:15 UNBALANCED MOMENTARY DUTY PAGE 4 U N B A L A N C E D M O M E N T A R Y D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO ============================================================================== LOCATION FAULT E/Z X/R EQUIVALENT MOMENTARY FAULT DUTIES VOLTAGE TYPE KA IMPEDANCE (PU) E/Z * 1.6 @ 0.5 CYCLE ============================================================================== 3P Duty: 17.21 7.9 Z1= 0.8064 27.54 23.74 SWGR MV A SLG DUTY: 22.24 7.7 Z2= 0.8064 35.59 30.53 4160. VOLTS LN/LN: 14.90 Z0= 0.2592 LN/LN/GND: 21.76 ( 31.43 GND RETURN KA) 3P Duty: 17.21 7.9 Z1= 0.8064 27.54 23.74 SWGR MV B SLG DUTY: 22.24 7.7 Z2= 0.8064 35.59 30.53 4160. VOLTS LN/LN: 14.90 Z0= 0.2592 LN/LN/GND: 21.76 ( 31.43 GND RETURN KA)

JESSE BROWN VA 8-23

Jun 07, 2017 15:51:15 UNBALANCED MOMENTARY DUTY PAGE 5 M O M E N T A R Y D U T Y S U M M A R Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO SOLUTION METHOD : E/Z ============================================================================== BUS RECORD VOLTAGE * 3 P H A S E * * * * SLG * * * NO NAME L-L KA X/R KA X/R ============================================================================== BUS-PARKING GA 4160. 14.870 4.11 13.931 2.90 BUS-PARKING GA 4160. 14.870 4.11 13.932 2.90 BUS-SW SS MANU 4160. 21.434 6.38 24.992 5.12 BUS-SW SS MANU 4160. 21.434 6.38 24.992 5.12 BUS-UTIL-COMED 4160. 23.743 7.90 30.556 7.72 BUS-UTIL-SERVI 4160. 23.739 7.90 30.550 7.72 BUS-XF2-COMED 12470. 3.620 7.35 BUS-XF2-COMED 12470. 3.620 7.35 BUS-XF2-SUB #1 4160. 15.583 3.99 14.945 2.75 BUS-XF2-SUB #1 4160. 15.583 3.99 14.945 2.75 BUS-XF2-SUB #1 4160. 11.755 3.03 10.149 2.10 BUS-XF2-SUB #4 4160. 11.755 3.03 10.149 2.10 BUS-XF2-SUB #8 4160. 18.815 4.20 20.057 2.75 BUS-XF2-SUB #8 4160. 18.815 4.20 20.057 2.75 BUS-XF2-VAA PR 4160. 15.347 4.24 14.579 2.99 BUS-XF2-VBA PR 4160. 15.347 4.24 14.579 2.99 PNL CHILLER #1 4160. 19.512 5.06 21.189 3.59 PNL CHILLER #2 4160. 19.512 5.06 21.189 3.59 SWGR BEDTOWER 4160. 20.155 5.93 22.399 4.58 SWGR BEDTOWER 4160. 18.297 5.56 19.060 4.22 SWGR BLDG 1C 4160. 18.975 5.19 20.221 3.76 SWGR BLDG 1C A 4160. 18.975 5.19 20.221 3.76 SWGR CHILLER B 4160. 20.722 6.00 23.508 4.64 SWGR ESG 4160. 23.112 7.49 28.906 6.87 SWGR MV A 4160. 23.739 7.90 30.526 7.69 SWGR MV B 4160. 23.739 7.90 30.526 7.69 26 FAULTED BUSES, 39 BRANCHES, 2 CONTRIBUTIONS UNBALANCED FAULTS REQUESTED *** SHORT CIRCUIT STUDY COMPLETE ***

JESSE BROWN VA 8-24

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 1 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== BUS-PARKING GA E/Z: 12.420 KA AT -76.32 DEG ( 89.49 MVA) X/R: 4.11 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0457 + J 0.1879 OHMS CONTRIBUTIONS: BUS-XF2-VAA PR 12.420 KA ANG: 103.68 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 6.245 0.30 R UTIL-COMED-Y71 6.175 0.30 R TOTAL REMOTE: 12.420 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 12.420 12.420 12.420 12.420 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.042 1.000 1.000 1.000 DUTY (KA) : 12.939 12.420 12.420 12.420 BUS-PARKING GA E/Z: 12.420 KA AT -76.32 DEG ( 89.49 MVA) X/R: 4.11 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0457 + J 0.1879 OHMS CONTRIBUTIONS: BUS-XF2-VBA PR 12.420 KA ANG: 103.68 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 6.246 0.30 R UTIL-COMED-Y71 6.174 0.30 R TOTAL REMOTE: 12.420 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 12.420 12.420 12.420 12.420 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.042 1.000 1.000 1.000 DUTY (KA) : 12.939 12.420 12.420 12.420 BUS-SW SS MANU E/Z: 16.216 KA AT -81.09 DEG ( 116.84 MVA) X/R: 6.38 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0229 + J 0.1463 OHMS CBL-CHILLER BL SWGR MV A 16.216 KA ANG: -81.09 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 8.154 0.07 R UTIL-COMED-Y71 8.062 0.07 R TOTAL REMOTE: 16.216 KA NACD RATIO: 1.0000

JESSE BROWN VA 8-25

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 2 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 16.216 16.216 16.216 16.216 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.096 1.000 1.000 1.000 DUTY (KA) : 17.779 16.216 16.216 16.216 BUS-SW SS MANU E/Z: 16.216 KA AT -81.09 DEG ( 116.84 MVA) X/R: 6.38 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0229 + J 0.1463 OHMS CONTRIBUTIONS: SWGR MV B 16.216 KA ANG: -81.09 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 8.156 0.07 R UTIL-COMED-Y71 8.061 0.07 R TOTAL REMOTE: 16.216 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 16.216 16.216 16.216 16.216 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.096 1.000 1.000 1.000 DUTY (KA) : 17.779 16.216 16.216 16.216 BUS-UTIL-COMED E/Z: 17.211 KA AT -82.79 DEG ( 124.01 MVA) X/R: 7.90 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1384 OHMS CONTRIBUTIONS: UTIL-COMED-Y71 8.700 KA ANG: -82.87 CBL-MV B SWGR MV B 8.511 KA ANG: -262.70 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 8.700 0.00 R UTIL-COMED-Y71 8.511 0.01 R TOTAL REMOTE: 17.211 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.001 DUTY (KA) : 17.211 17.211 17.211 17.222

JESSE BROWN VA 8-26

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 3 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.144 1.021 1.000 1.000 DUTY (KA) : 19.692 17.577 17.211 17.211 BUS-UTIL-SERVI E/Z: 17.209 KA AT -82.78 DEG ( 124.00 MVA) X/R: 7.90 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1385 OHMS CONTRIBUTIONS: UTIL-COMED-Y71 8.600 KA ANG: -82.87 CBL-MV A SWGR MV A 8.609 KA ANG: -82.69 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 8.609 0.01 R UTIL-COMED-Y71 8.600 0.00 R TOTAL REMOTE: 17.209 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.001 DUTY (KA) : 17.209 17.209 17.209 17.220 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.144 1.021 1.000 1.000 DUTY (KA) : 19.688 17.575 17.209 17.209 BUS-XF2-COMED E/Z: 2.661 KA AT -82.25 DEG ( 57.48 MVA) X/R: 7.35 VOLTAGE: 12470. EQUIV. IMPEDANCE= 0.3648 + J 2.6805 OHMS XF2-COMED Y714 BUS-UTIL-COMED 2.661 KA ANG: -82.25 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 1.345 0.54 R UTIL-COMED-Y71 1.316 0.54 R TOTAL REMOTE: 2.661 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 2.661 2.661 2.661 2.661 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.127 1.013 1.000 1.000 DUTY (KA) : 2.999 2.695 2.661 2.661 BUS-XF2-COMED E/Z: 2.661 KA AT -82.25 DEG ( 57.48 MVA) X/R: 7.35 VOLTAGE: 12470. EQUIV. IMPEDANCE= 0.3648 + J 2.6806 OHMS XF2-COMED Y714 BUS-UTIL-SERVI 2.661 KA ANG: -82.25

JESSE BROWN VA 8-27

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 4 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 1.331 0.54 R UTIL-COMED-Y71 1.330 0.54 R TOTAL REMOTE: 2.661 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 2.661 2.661 2.661 2.661 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.127 1.013 1.000 1.000 DUTY (KA) : 2.999 2.695 2.661 2.661 BUS-XF2-SUB #1 E/Z: 13.104 KA AT -75.93 DEG ( 94.42 MVA) X/R: 3.99 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0445 + J 0.1778 OHMS CONTRIBUTIONS: SWGR MV A 13.104 KA ANG: -75.93 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 6.589 0.26 R UTIL-COMED-Y71 6.515 0.26 R TOTAL REMOTE: 13.104 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 13.104 13.104 13.104 13.104 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.040 1.000 1.000 1.000 DUTY (KA) : 13.631 13.104 13.104 13.104 BUS-XF2-SUB #1 VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) BUS-XF2-SUB #1 VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) BUS-XF2-SUB #1 E/Z: 13.104 KA AT -75.93 DEG ( 94.42 MVA) X/R: 3.99 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0445 + J 0.1778 OHMS CONTRIBUTIONS: SWGR MV B 13.104 KA ANG: -75.93 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 6.590 0.26 R

JESSE BROWN VA 8-28

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 5 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 6.514 0.26 R TOTAL REMOTE: 13.104 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 13.104 13.104 13.104 13.104 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.040 1.000 1.000 1.000 DUTY (KA) : 13.632 13.104 13.104 13.104 BUS-XF2-SUB #1 E/Z: 10.505 KA AT -71.76 DEG ( 75.69 MVA) X/R: 3.03 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0716 + J 0.2171 OHMS CONTRIBUTIONS: BUS-XF2-SUB #1 10.505 KA ANG: -71.76 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 5.283 0.42 R UTIL-COMED-Y71 5.222 0.42 R TOTAL REMOTE: 10.505 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 10.505 10.505 10.505 10.505 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.028 1.000 1.000 1.000 DUTY (KA) : 10.802 10.505 10.505 10.505 BUS-XF2-SUB #4 E/Z: 10.505 KA AT -71.76 DEG ( 75.69 MVA) X/R: 3.03 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0716 + J 0.2171 OHMS CONTRIBUTIONS: BUS-XF2-SUB #1 10.505 KA ANG: -71.76 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 5.282 0.42 R UTIL-COMED-Y71 5.223 0.42 R TOTAL REMOTE: 10.505 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 10.505 10.505 10.505 10.505

JESSE BROWN VA 8-29

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 6 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.028 1.000 1.000 1.000 DUTY (KA) : 10.802 10.505 10.505 10.505 BUS-XF2-SUB #4 VOLTAGE: 208. ( SEE LOW VOLTAGE REPORT ) BUS-XF2-SUB #4 VOLTAGE: 208. ( SEE LOW VOLTAGE REPORT ) BUS-XF2-SUB #8 E/Z: 15.631 KA AT -76.62 DEG ( 112.63 MVA) X/R: 4.20 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0356 + J 0.1495 OHMS CONTRIBUTIONS: SWGR MV B 15.631 KA ANG: -76.62 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 7.861 0.14 R UTIL-COMED-Y71 7.770 0.14 R TOTAL REMOTE: 15.631 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 15.631 15.631 15.631 15.631 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.043 1.000 1.000 1.000 DUTY (KA) : 16.303 15.631 15.631 15.631 BUS-XF2-SUB #8 E/Z: 15.631 KA AT -76.62 DEG ( 112.63 MVA) X/R: 4.20 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0356 + J 0.1495 OHMS CONTRIBUTIONS: SWGR MV A 15.631 KA ANG: -76.62 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 7.860 0.14 R UTIL-COMED-Y71 7.772 0.14 R TOTAL REMOTE: 15.631 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 15.631 15.631 15.631 15.631 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.043 1.000 1.000 1.000 DUTY (KA) : 16.303 15.631 15.631 15.631

JESSE BROWN VA 8-30

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 7 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== BUS-XF2-VAA PR E/Z: 12.726 KA AT -76.73 DEG ( 91.69 MVA) X/R: 4.24 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0433 + J 0.1837 OHMS CONTRIBUTIONS: SWGR MV A 12.726 KA ANG: -76.73 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 6.399 0.28 R UTIL-COMED-Y71 6.327 0.28 R TOTAL REMOTE: 12.726 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 12.726 12.726 12.726 12.726 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.043 1.000 1.000 1.000 DUTY (KA) : 13.278 12.726 12.726 12.726 BUS-XF2-VAA SE VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) BUS-XF2-VBA PR E/Z: 12.726 KA AT -76.73 DEG ( 91.69 MVA) X/R: 4.24 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0433 + J 0.1837 OHMS CONTRIBUTIONS: SWGR MV B 12.726 KA ANG: -76.73 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 6.400 0.28 R UTIL-COMED-Y71 6.326 0.28 R TOTAL REMOTE: 12.726 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 12.726 12.726 12.726 12.726 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.043 1.000 1.000 1.000 DUTY (KA) : 13.278 12.726 12.726 12.726 BUS-XF2-VBA SE VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) PNL CHILLER #1 E/Z: 15.535 KA AT -78.82 DEG ( 111.93 MVA) X/R: 5.06 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0300 + J 0.1517 OHMS CBL-CHILLER #1 SWGR CHILLER B 15.535 KA ANG: -78.82

JESSE BROWN VA 8-31

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 8 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 7.813 0.12 R UTIL-COMED-Y71 7.722 0.12 R TOTAL REMOTE: 15.535 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 15.535 15.535 15.535 15.535 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.055 1.000 1.000 1.000 DUTY (KA) : 16.387 15.535 15.535 15.535 PNL CHILLER #2 E/Z: 15.535 KA AT -78.82 DEG ( 111.93 MVA) X/R: 5.06 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0300 + J 0.1517 OHMS CBL-CHILLER #2 SWGR CHILLER B 15.535 KA ANG: -78.82 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 7.813 0.12 R UTIL-COMED-Y71 7.722 0.12 R TOTAL REMOTE: 15.535 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 15.535 15.535 15.535 15.535 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.055 1.000 1.000 1.000 DUTY (KA) : 16.387 15.535 15.535 15.535 SWBD PARKING G VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) SWBD PARKING G VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) SWBD V AA VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) SWBD VBA VOLTAGE: 480. ( SEE LOW VOLTAGE REPORT ) SWGR BEDTOWER E/Z: 15.488 KA AT -80.43 DEG ( 111.59 MVA) X/R: 5.93 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0258 + J 0.1529 OHMS CBL-BEDTOWER B SWGR MV B 15.488 KA ANG: -80.43 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 7.789 0.11 R

JESSE BROWN VA 8-32

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 9 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 7.699 0.11 R TOTAL REMOTE: 15.488 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 15.488 15.488 15.488 15.488 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.082 1.000 1.000 1.000 DUTY (KA) : 16.762 15.488 15.488 15.488 SWGR BEDTOWER E/Z: 14.258 KA AT -79.81 DEG ( 102.74 MVA) X/R: 5.56 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0298 + J 0.1658 OHMS CBL-BEDTOWER B SWGR MV A 14.258 KA ANG: -79.81 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 7.170 0.18 R UTIL-COMED-Y71 7.089 0.18 R TOTAL REMOTE: 14.258 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 14.258 14.258 14.258 14.258 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.071 1.000 1.000 1.000 DUTY (KA) : 15.267 14.258 14.258 14.258 SWGR BLDG 1C E/Z: 15.021 KA AT -79.09 DEG ( 108.23 MVA) X/R: 5.19 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0303 + J 0.1570 OHMS CBL-BLDG 1C SWGR MV B 15.021 KA ANG: -79.09 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 7.555 0.15 R UTIL-COMED-Y71 7.467 0.15 R TOTAL REMOTE: 15.021 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 15.021 15.021 15.021 15.021

JESSE BROWN VA 8-33

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 10 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.059 1.000 1.000 1.000 DUTY (KA) : 15.906 15.021 15.021 15.021 SWGR BLDG 1C A E/Z: 15.021 KA AT -79.09 DEG ( 108.23 MVA) X/R: 5.19 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0303 + J 0.1570 OHMS CBL-BLDG 1C A SWGR MV A 15.021 KA ANG: -79.09 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 7.553 0.15 R UTIL-COMED-Y71 7.468 0.15 R TOTAL REMOTE: 15.021 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 15.021 15.021 15.021 15.021 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.059 1.000 1.000 1.000 DUTY (KA) : 15.906 15.021 15.021 15.021 SWGR CHILLER B E/Z: 15.886 KA AT -80.54 DEG ( 114.46 MVA) X/R: 6.00 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0249 + J 0.1491 OHMS CONTRIBUTIONS: BUS-SW SS MANU 15.886 KA ANG: -80.54 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 7.989 0.09 R UTIL-COMED-Y71 7.896 0.09 R TOTAL REMOTE: 15.886 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 15.886 15.886 15.886 15.886 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.084 1.000 1.000 1.000 DUTY (KA) : 17.226 15.886 15.886 15.886 SWGR ESG E/Z: 16.926 KA AT -82.40 DEG ( 121.96 MVA) X/R: 7.49 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0188 + J 0.1406 OHMS CBL-ESG-F1 SWGR MV B 16.926 KA ANG: -82.40

JESSE BROWN VA 8-34

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 11 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 8.513 0.02 R UTIL-COMED-Y71 8.414 0.02 R TOTAL REMOTE: 16.926 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.000 DUTY (KA) : 16.926 16.926 16.926 16.926 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.131 1.015 1.000 1.000 DUTY (KA) : 19.147 17.178 16.926 16.926 SWGR MV A E/Z: 17.210 KA AT -82.78 DEG ( 124.00 MVA) X/R: 7.90 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1385 OHMS CONTRIBUTIONS: BUS-UTIL-SERVI 8.556 KA ANG: 97.21 BD MV TIE SWGR MV B 8.653 KA ANG: -82.78 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 8.653 0.01 R UTIL-COMED-Y71 8.556 0.01 R TOTAL REMOTE: 17.210 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.001 DUTY (KA) : 17.210 17.210 17.210 17.221 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.144 1.021 1.000 1.000 DUTY (KA) : 19.688 17.575 17.210 17.210 SWGR MV B E/Z: 17.210 KA AT -82.78 DEG ( 124.00 MVA) X/R: 7.90 VOLTAGE: 4160. EQUIV. IMPEDANCE= 0.0175 + J 0.1385 OHMS CONTRIBUTIONS: BUS-UTIL-COMED 8.655 KA ANG: -82.78

JESSE BROWN VA 8-35

Jun 07, 2017 15:51:15 THREE PHASE INTERRUPTING DUTY PAGE 12 T H R E E P H A S E I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== CONTRIBUTIONS TO SWGR MV B (CONTINUED) BD MV TIE SWGR MV A 8.554 KA ANG: 97.21 GENERATOR NAME -- AT BUS -- KA VOLTS PU LOCAL/REMOTE UTIL-COMED-Y71 8.655 0.01 R UTIL-COMED-Y71 8.554 0.01 R TOTAL REMOTE: 17.210 KA NACD RATIO: 1.0000 SYM2 SYM3 SYM5 SYM8 MULT. FACT: 1.000 1.000 1.000 1.001 DUTY (KA) : 17.210 17.210 17.210 17.221 TOT2 TOT3 TOT5 TOT8 MULT. FACT: 1.144 1.021 1.000 1.000 DUTY (KA) : 19.688 17.575 17.210 17.210 SWGR SUB #8 VOLTAGE: 208. ( SEE LOW VOLTAGE REPORT ) SWGR SUB #8 A VOLTAGE: 208. ( SEE LOW VOLTAGE REPORT )

JESSE BROWN VA 8-36

Jun 07, 2017 15:51:15 UNBALANCED INTERRUPTING DUTY PAGE 1 U N B A L A N C E D I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== LOCATION FAULT E/Z X/R ANSI AC/DC INTERRUPTING TYPE KA DECREMENT FACT. DUTIES (KA) 3 PHASE SLG 3 PHASE SLG ============================================================================== BUS-PARKING GA 3P Duty: 12.42 4.1 SYM2: 1.00 1.00 12.42 12.57 VOLTS: 4160.0 SLG: 12.57 2.9 SYM3: 1.00 1.00 12.42 12.57 NACD: 1.000 LN/LN: 10.76 SYM5: 1.00 1.00 12.42 12.57 LN/LN/GND: 13.45 SYM8: 1.00 1.00 12.42 12.57 GND RETURN: 12.61 TOT2: 1.04 1.03 12.94 12.90 Z1(PU): 1.11746 TOT3: 1.00 1.00 12.42 12.57 Z2(PU): 1.11746 TOT5: 1.00 1.00 12.42 12.57 Z0(PU): 1.10750 TOT8: 1.00 1.00 12.42 12.57 BUS-PARKING GA 3P Duty: 12.42 4.1 SYM2: 1.00 1.00 12.42 12.57 VOLTS: 4160.0 SLG: 12.57 2.9 SYM3: 1.00 1.00 12.42 12.57 NACD: 1.000 LN/LN: 10.76 SYM5: 1.00 1.00 12.42 12.57 LN/LN/GND: 13.45 SYM8: 1.00 1.00 12.42 12.57 GND RETURN: 12.61 TOT2: 1.04 1.03 12.94 12.90 Z1(PU): 1.11746 TOT3: 1.00 1.00 12.42 12.57 Z2(PU): 1.11746 TOT5: 1.00 1.00 12.42 12.57 Z0(PU): 1.10750 TOT8: 1.00 1.00 12.42 12.57 BUS-SW SS MANU 3P Duty: 16.22 6.4 SYM2: 1.00 1.00 16.22 19.84 VOLTS: 4160.0 SLG: 19.84 5.1 SYM3: 1.00 1.00 16.22 19.84 NACD: 1.000 LN/LN: 14.04 SYM5: 1.00 1.00 16.22 19.84 LN/LN/GND: 19.85 SYM8: 1.00 1.00 16.22 19.84 GND RETURN: 25.49 TOT2: 1.10 1.06 17.78 20.97 Z1(PU): 0.85585 TOT3: 1.00 1.00 16.22 19.84 Z2(PU): 0.85585 TOT5: 1.00 1.00 16.22 19.84 Z0(PU): 0.39297 TOT8: 1.00 1.00 16.22 19.84 BUS-SW SS MANU 3P Duty: 16.22 6.4 SYM2: 1.00 1.00 16.22 19.84 VOLTS: 4160.0 SLG: 19.84 5.1 SYM3: 1.00 1.00 16.22 19.84 NACD: 1.000 LN/LN: 14.04 SYM5: 1.00 1.00 16.22 19.84 LN/LN/GND: 19.85 SYM8: 1.00 1.00 16.22 19.84 GND RETURN: 25.49 TOT2: 1.10 1.06 17.78 20.97 Z1(PU): 0.85585 TOT3: 1.00 1.00 16.22 19.84 Z2(PU): 0.85585 TOT5: 1.00 1.00 16.22 19.84 Z0(PU): 0.39297 TOT8: 1.00 1.00 16.22 19.84

JESSE BROWN VA 8-37

Jun 07, 2017 15:51:15 UNBALANCED INTERRUPTING DUTY PAGE 2 U N B A L A N C E D I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== LOCATION FAULT E/Z X/R ANSI AC/DC INTERRUPTING TYPE KA DECREMENT FACT. DUTIES (KA) 3 PHASE SLG 3 PHASE SLG ============================================================================== BUS-UTIL-COMED 3P Duty: 17.21 7.9 SYM2: 1.00 1.00 17.21 22.25 VOLTS: 4160.0 SLG: 22.25 7.7 SYM3: 1.00 1.00 17.21 22.25 NACD: 1.000 LN/LN: 14.91 SYM5: 1.00 1.00 17.21 22.25 LN/LN/GND: 21.77 SYM8: 1.00 1.00 17.22 22.26 GND RETURN: 31.45 TOT2: 1.14 1.14 19.69 25.33 Z1(PU): 0.80638 TOT3: 1.02 1.02 17.58 22.66 Z2(PU): 0.80638 TOT5: 1.00 1.00 17.21 22.25 Z0(PU): 0.25874 TOT8: 1.00 1.00 17.21 22.25 BUS-UTIL-SERVI 3P Duty: 17.21 7.9 SYM2: 1.00 1.00 17.21 22.25 VOLTS: 4160.0 SLG: 22.25 7.7 SYM3: 1.00 1.00 17.21 22.25 NACD: 1.000 LN/LN: 14.90 SYM5: 1.00 1.00 17.21 22.25 LN/LN/GND: 21.76 SYM8: 1.00 1.00 17.22 22.25 GND RETURN: 31.45 TOT2: 1.14 1.14 19.69 25.32 Z1(PU): 0.80648 TOT3: 1.02 1.02 17.57 22.65 Z2(PU): 0.80648 TOT5: 1.00 1.00 17.21 22.25 Z0(PU): 0.25880 TOT8: 1.00 1.00 17.21 22.25 BUS-XF2-COMED 3P Duty: 2.66 7.3 SYM2: 1.00 2.66 VOLTS: 12470.0 SLG: SYM3: 1.00 2.66 NACD: 1.000 LN/LN: 2.30 SYM5: 1.00 2.66 LN/LN/GND: 2.30 SYM8: 1.00 2.66 GND RETURN: TOT2: 1.13 3.00 Z1(PU): 1.73965 TOT3: 1.01 2.70 Z2(PU): 1.73965 TOT5: 1.00 2.66 Z0(PU): TOT8: 1.00 2.66 BUS-XF2-COMED 3P Duty: 2.66 7.3 SYM2: 1.00 2.66 VOLTS: 12470.0 SLG: SYM3: 1.00 2.66 NACD: 1.000 LN/LN: 2.30 SYM5: 1.00 2.66 LN/LN/GND: 2.30 SYM8: 1.00 2.66 GND RETURN: TOT2: 1.13 3.00 Z1(PU): 1.73974 TOT3: 1.01 2.69 Z2(PU): 1.73974 TOT5: 1.00 2.66 Z0(PU): TOT8: 1.00 2.66

JESSE BROWN VA 8-38

Jun 07, 2017 15:51:15 UNBALANCED INTERRUPTING DUTY PAGE 3 U N B A L A N C E D I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== LOCATION FAULT E/Z X/R ANSI AC/DC INTERRUPTING TYPE KA DECREMENT FACT. DUTIES (KA) 3 PHASE SLG 3 PHASE SLG ============================================================================== BUS-XF2-SUB #1 3P Duty: 13.10 4.0 SYM2: 1.00 1.00 13.10 13.63 VOLTS: 4160.0 SLG: 13.63 2.7 SYM3: 1.00 1.00 13.10 13.63 NACD: 1.000 LN/LN: 11.35 SYM5: 1.00 1.00 13.10 13.63 LN/LN/GND: 14.56 SYM8: 1.00 1.00 13.10 13.63 GND RETURN: 14.02 TOT2: 1.04 1.02 13.63 13.96 Z1(PU): 1.05915 TOT3: 1.00 1.00 13.10 13.63 Z2(PU): 1.05915 TOT5: 1.00 1.00 13.10 13.63 Z0(PU): 0.97362 TOT8: 1.00 1.00 13.10 13.63 BUS-XF2-SUB #1 3P Duty: 13.10 4.0 SYM2: 1.00 1.00 13.10 13.63 VOLTS: 4160.0 SLG: 13.63 2.7 SYM3: 1.00 1.00 13.10 13.63 NACD: 1.000 LN/LN: 11.35 SYM5: 1.00 1.00 13.10 13.63 LN/LN/GND: 14.56 SYM8: 1.00 1.00 13.10 13.63 GND RETURN: 14.02 TOT2: 1.04 1.02 13.63 13.96 Z1(PU): 1.05915 TOT3: 1.00 1.00 13.10 13.63 Z2(PU): 1.05915 TOT5: 1.00 1.00 13.10 13.63 Z0(PU): 0.97362 TOT8: 1.00 1.00 13.10 13.63 BUS-XF2-SUB #1 3P Duty: 10.51 3.0 SYM2: 1.00 1.00 10.51 9.68 VOLTS: 4160.0 SLG: 9.68 2.1 SYM3: 1.00 1.00 10.51 9.68 NACD: 1.000 LN/LN: 9.10 SYM5: 1.00 1.00 10.51 9.68 LN/LN/GND: 11.00 SYM8: 1.00 1.00 10.51 9.68 GND RETURN: 8.86 TOT2: 1.03 1.02 10.80 9.83 Z1(PU): 1.32111 TOT3: 1.00 1.00 10.51 9.68 Z2(PU): 1.32111 TOT5: 1.00 1.00 10.51 9.68 Z0(PU): 1.71460 TOT8: 1.00 1.00 10.51 9.68 BUS-XF2-SUB #4 3P Duty: 10.51 3.0 SYM2: 1.00 1.00 10.51 9.68 VOLTS: 4160.0 SLG: 9.68 2.1 SYM3: 1.00 1.00 10.51 9.68 NACD: 1.000 LN/LN: 9.10 SYM5: 1.00 1.00 10.51 9.68 LN/LN/GND: 11.00 SYM8: 1.00 1.00 10.51 9.68 GND RETURN: 8.86 TOT2: 1.03 1.02 10.80 9.83 Z1(PU): 1.32111 TOT3: 1.00 1.00 10.51 9.68 Z2(PU): 1.32111 TOT5: 1.00 1.00 10.51 9.68 Z0(PU): 1.71460 TOT8: 1.00 1.00 10.51 9.68

JESSE BROWN VA 8-39

Jun 07, 2017 15:51:15 UNBALANCED INTERRUPTING DUTY PAGE 4 U N B A L A N C E D I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== LOCATION FAULT E/Z X/R ANSI AC/DC INTERRUPTING TYPE KA DECREMENT FACT. DUTIES (KA) 3 PHASE SLG 3 PHASE SLG ============================================================================== BUS-XF2-SUB #8 3P Duty: 15.63 4.2 SYM2: 1.00 1.00 15.63 18.28 VOLTS: 4160.0 SLG: 18.28 2.8 SYM3: 1.00 1.00 15.63 18.28 NACD: 1.000 LN/LN: 13.54 SYM5: 1.00 1.00 15.63 18.28 LN/LN/GND: 19.44 SYM8: 1.00 1.00 15.63 18.28 GND RETURN: 21.53 TOT2: 1.04 1.02 16.30 18.73 Z1(PU): 0.88786 TOT3: 1.00 1.00 15.63 18.28 Z2(PU): 0.88786 TOT5: 1.00 1.00 15.63 18.28 Z0(PU): 0.55270 TOT8: 1.00 1.00 15.63 18.28 BUS-XF2-SUB #8 3P Duty: 15.63 4.2 SYM2: 1.00 1.00 15.63 18.28 VOLTS: 4160.0 SLG: 18.28 2.8 SYM3: 1.00 1.00 15.63 18.28 NACD: 1.000 LN/LN: 13.54 SYM5: 1.00 1.00 15.63 18.28 LN/LN/GND: 19.44 SYM8: 1.00 1.00 15.63 18.28 GND RETURN: 21.53 TOT2: 1.04 1.02 16.30 18.73 Z1(PU): 0.88787 TOT3: 1.00 1.00 15.63 18.28 Z2(PU): 0.88787 TOT5: 1.00 1.00 15.63 18.28 Z0(PU): 0.55271 TOT8: 1.00 1.00 15.63 18.28 BUS-XF2-VAA PR 3P Duty: 12.73 4.2 SYM2: 1.00 1.00 12.73 13.06 VOLTS: 4160.0 SLG: 13.06 3.0 SYM3: 1.00 1.00 12.73 13.06 NACD: 1.000 LN/LN: 11.02 SYM5: 1.00 1.00 12.73 13.06 LN/LN/GND: 13.88 SYM8: 1.00 1.00 12.73 13.06 GND RETURN: 13.30 TOT2: 1.04 1.03 13.28 13.43 Z1(PU): 1.09059 TOT3: 1.00 1.00 12.73 13.06 Z2(PU): 1.09059 TOT5: 1.00 1.00 12.73 13.06 Z0(PU): 1.03383 TOT8: 1.00 1.00 12.73 13.06 BUS-XF2-VBA PR 3P Duty: 12.73 4.2 SYM2: 1.00 1.00 12.73 13.06 VOLTS: 4160.0 SLG: 13.06 3.0 SYM3: 1.00 1.00 12.73 13.06 NACD: 1.000 LN/LN: 11.02 SYM5: 1.00 1.00 12.73 13.06 LN/LN/GND: 13.88 SYM8: 1.00 1.00 12.73 13.06 GND RETURN: 13.30 TOT2: 1.04 1.03 13.28 13.43 Z1(PU): 1.09058 TOT3: 1.00 1.00 12.73 13.06 Z2(PU): 1.09058 TOT5: 1.00 1.00 12.73 13.06 Z0(PU): 1.03383 TOT8: 1.00 1.00 12.73 13.06

JESSE BROWN VA 8-40

Jun 07, 2017 15:51:15 UNBALANCED INTERRUPTING DUTY PAGE 5 U N B A L A N C E D I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== LOCATION FAULT E/Z X/R ANSI AC/DC INTERRUPTING TYPE KA DECREMENT FACT. DUTIES (KA) 3 PHASE SLG 3 PHASE SLG ============================================================================== PNL CHILLER #1 3P Duty: 15.53 5.1 SYM2: 1.00 1.00 15.53 18.25 VOLTS: 4160.0 SLG: 18.25 3.6 SYM3: 1.00 1.00 15.53 18.25 NACD: 1.000 LN/LN: 13.45 SYM5: 1.00 1.00 15.53 18.25 LN/LN/GND: 18.84 SYM8: 1.00 1.00 15.53 18.25 GND RETURN: 21.91 TOT2: 1.05 1.04 16.39 18.90 Z1(PU): 0.89340 TOT3: 1.00 1.00 15.53 18.25 Z2(PU): 0.89340 TOT5: 1.00 1.00 15.53 18.25 Z0(PU): 0.51772 TOT8: 1.00 1.00 15.53 18.25 PNL CHILLER #2 3P Duty: 15.53 5.1 SYM2: 1.00 1.00 15.53 18.25 VOLTS: 4160.0 SLG: 18.25 3.6 SYM3: 1.00 1.00 15.53 18.25 NACD: 1.000 LN/LN: 13.45 SYM5: 1.00 1.00 15.53 18.25 LN/LN/GND: 18.84 SYM8: 1.00 1.00 15.53 18.25 GND RETURN: 21.91 TOT2: 1.05 1.04 16.39 18.90 Z1(PU): 0.89340 TOT3: 1.00 1.00 15.53 18.25 Z2(PU): 0.89340 TOT5: 1.00 1.00 15.53 18.25 Z0(PU): 0.51772 TOT8: 1.00 1.00 15.53 18.25 SWGR BEDTOWER 3P Duty: 15.49 5.9 SYM2: 1.00 1.00 15.49 18.25 VOLTS: 4160.0 SLG: 18.25 4.6 SYM3: 1.00 1.00 15.49 18.25 NACD: 1.000 LN/LN: 13.41 SYM5: 1.00 1.00 15.49 18.25 LN/LN/GND: 18.35 SYM8: 1.00 1.00 15.49 18.25 GND RETURN: 22.11 TOT2: 1.08 1.05 16.76 19.12 Z1(PU): 0.89611 TOT3: 1.00 1.00 15.49 18.25 Z2(PU): 0.89611 TOT5: 1.00 1.00 15.49 18.25 Z0(PU): 0.49929 TOT8: 1.00 1.00 15.49 18.25 SWGR BEDTOWER 3P Duty: 14.26 5.6 SYM2: 1.00 1.00 14.26 15.82 VOLTS: 4160.0 SLG: 15.82 4.2 SYM3: 1.00 1.00 14.26 15.82 NACD: 1.000 LN/LN: 12.35 SYM5: 1.00 1.00 14.26 15.82 LN/LN/GND: 16.04 SYM8: 1.00 1.00 14.26 15.82 GND RETURN: 17.69 TOT2: 1.07 1.04 15.27 16.50 Z1(PU): 0.97336 TOT3: 1.00 1.00 14.26 15.82 Z2(PU): 0.97336 TOT5: 1.00 1.00 14.26 15.82 Z0(PU): 0.69650 TOT8: 1.00 1.00 14.26 15.82

JESSE BROWN VA 8-41

Jun 07, 2017 15:51:15 UNBALANCED INTERRUPTING DUTY PAGE 6 U N B A L A N C E D I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== LOCATION FAULT E/Z X/R ANSI AC/DC INTERRUPTING TYPE KA DECREMENT FACT. DUTIES (KA) 3 PHASE SLG 3 PHASE SLG ============================================================================== SWGR BLDG 1C 3P Duty: 15.02 5.2 SYM2: 1.00 1.00 15.02 17.24 VOLTS: 4160.0 SLG: 17.24 3.8 SYM3: 1.00 1.00 15.02 17.24 NACD: 1.000 LN/LN: 13.01 SYM5: 1.00 1.00 15.02 17.24 LN/LN/GND: 17.66 SYM8: 1.00 1.00 15.02 17.24 GND RETURN: 20.06 TOT2: 1.06 1.04 15.91 17.88 Z1(PU): 0.92393 TOT3: 1.00 1.00 15.02 17.24 Z2(PU): 0.92393 TOT5: 1.00 1.00 15.02 17.24 Z0(PU): 0.58647 TOT8: 1.00 1.00 15.02 17.24 SWGR BLDG 1C A 3P Duty: 15.02 5.2 SYM2: 1.00 1.00 15.02 17.24 VOLTS: 4160.0 SLG: 17.24 3.8 SYM3: 1.00 1.00 15.02 17.24 NACD: 1.000 LN/LN: 13.01 SYM5: 1.00 1.00 15.02 17.24 LN/LN/GND: 17.66 SYM8: 1.00 1.00 15.02 17.24 GND RETURN: 20.06 TOT2: 1.06 1.04 15.91 17.88 Z1(PU): 0.92393 TOT3: 1.00 1.00 15.02 17.24 Z2(PU): 0.92393 TOT5: 1.00 1.00 15.02 17.24 Z0(PU): 0.58647 TOT8: 1.00 1.00 15.02 17.24 SWGR CHILLER B 3P Duty: 15.89 6.0 SYM2: 1.00 1.00 15.89 19.09 VOLTS: 4160.0 SLG: 19.09 4.6 SYM3: 1.00 1.00 15.89 19.09 NACD: 1.000 LN/LN: 13.76 SYM5: 1.00 1.00 15.89 19.09 LN/LN/GND: 19.23 SYM8: 1.00 1.00 15.89 19.09 GND RETURN: 23.82 TOT2: 1.08 1.05 17.23 20.02 Z1(PU): 0.87366 TOT3: 1.00 1.00 15.89 19.09 Z2(PU): 0.87366 TOT5: 1.00 1.00 15.89 19.09 Z0(PU): 0.44313 TOT8: 1.00 1.00 15.89 19.09 SWGR ESG 3P Duty: 16.93 7.5 SYM2: 1.00 1.00 16.93 21.54 VOLTS: 4160.0 SLG: 21.54 6.9 SYM3: 1.00 1.00 16.93 21.54 NACD: 1.000 LN/LN: 14.66 SYM5: 1.00 1.00 16.93 21.54 LN/LN/GND: 21.17 SYM8: 1.00 1.00 16.93 21.54 GND RETURN: 29.60 TOT2: 1.13 1.11 19.15 23.94 Z1(PU): 0.81994 TOT3: 1.01 1.01 17.18 21.65 Z2(PU): 0.81994 TOT5: 1.00 1.00 16.93 21.54 Z0(PU): 0.29395 TOT8: 1.00 1.00 16.93 21.54

JESSE BROWN VA 8-42

Jun 07, 2017 15:51:15 UNBALANCED INTERRUPTING DUTY PAGE 7 U N B A L A N C E D I N T E R R U P T I N G D U T Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== LOCATION FAULT E/Z X/R ANSI AC/DC INTERRUPTING TYPE KA DECREMENT FACT. DUTIES (KA) 3 PHASE SLG 3 PHASE SLG ============================================================================== SWGR MV A 3P Duty: 17.21 7.9 SYM2: 1.00 1.00 17.21 22.24 VOLTS: 4160.0 SLG: 22.24 7.7 SYM3: 1.00 1.00 17.21 22.24 NACD: 1.000 LN/LN: 14.90 SYM5: 1.00 1.00 17.21 22.24 LN/LN/GND: 21.76 SYM8: 1.00 1.00 17.22 22.25 GND RETURN: 31.43 TOT2: 1.14 1.14 19.69 25.30 Z1(PU): 0.80645 TOT3: 1.02 1.02 17.57 22.64 Z2(PU): 0.80645 TOT5: 1.00 1.00 17.21 22.24 Z0(PU): 0.25916 TOT8: 1.00 1.00 17.21 22.24 SWGR MV B 3P Duty: 17.21 7.9 SYM2: 1.00 1.00 17.21 22.24 VOLTS: 4160.0 SLG: 22.24 7.7 SYM3: 1.00 1.00 17.21 22.24 NACD: 1.000 LN/LN: 14.90 SYM5: 1.00 1.00 17.21 22.24 LN/LN/GND: 21.76 SYM8: 1.00 1.00 17.22 22.25 GND RETURN: 31.43 TOT2: 1.14 1.14 19.69 25.30 Z1(PU): 0.80645 TOT3: 1.02 1.02 17.57 22.64 Z2(PU): 0.80645 TOT5: 1.00 1.00 17.21 22.24 Z0(PU): 0.25916 TOT8: 1.00 1.00 17.21 22.24

JESSE BROWN VA 8-43

Jun 07, 2017 15:51:15 UNBALANCED INTERRUPTING DUTY PAGE 8 I N T E R R U P T I N G D U T Y S U M M A R Y R E P O R T PRE FAULT VOLTAGE: 1.0000 MODEL TRANSFORMER TAPS: NO NACD OPTION: INTERPOLATED ============================================================================== BUS RECORD VOLTAGE NACD * 3 P H A S E * * * * S L G * * * NO NAME L-L RATIO E/Z KA X/R E/Z KA X/R ============================================================================== BUS-PARKING GA 4160. 1.000 12.420 4.11 12.568 2.90 BUS-PARKING GA 4160. 1.000 12.420 4.11 12.568 2.90 BUS-SW SS MANU 4160. 1.000 16.216 6.38 19.844 5.12 BUS-SW SS MANU 4160. 1.000 16.216 6.38 19.844 5.12 BUS-UTIL-COMED 4160. 1.000 17.211 7.90 22.248 7.72 BUS-UTIL-SERVI 4160. 1.000 17.209 7.90 22.245 7.72 BUS-XF2-COMED 12470. 1.000 2.661 7.35 BUS-XF2-COMED 12470. 1.000 2.661 7.35 BUS-XF2-SUB #1 4160. 1.000 13.104 3.99 13.627 2.75 BUS-XF2-SUB #1 4160. 1.000 13.104 3.99 13.627 2.75 BUS-XF2-SUB #1 4160. 1.000 10.505 3.03 9.675 2.10 BUS-XF2-SUB #4 4160. 1.000 10.505 3.03 9.675 2.10 BUS-XF2-SUB #8 4160. 1.000 15.631 4.20 18.280 2.75 BUS-XF2-SUB #8 4160. 1.000 15.631 4.20 18.280 2.75 BUS-XF2-VAA PR 4160. 1.000 12.726 4.24 13.064 2.99 BUS-XF2-VBA PR 4160. 1.000 12.726 4.24 13.064 2.99 PNL CHILLER #1 4160. 1.000 15.535 5.06 18.254 3.59 PNL CHILLER #2 4160. 1.000 15.535 5.06 18.254 3.59 SWGR BEDTOWER 4160. 1.000 15.488 5.93 18.246 4.58 SWGR BEDTOWER 4160. 1.000 14.258 5.56 15.818 4.22 SWGR BLDG 1C 4160. 1.000 15.021 5.19 17.235 3.76 SWGR BLDG 1C A 4160. 1.000 15.021 5.19 17.235 3.76 SWGR CHILLER B 4160. 1.000 15.886 6.00 19.093 4.64 SWGR ESG 4160. 1.000 16.926 7.49 21.539 6.87 SWGR MV A 4160. 1.000 17.210 7.90 22.242 7.69 SWGR MV B 4160. 1.000 17.210 7.90 22.242 7.69 26 FAULTED BUSES, 39 BRANCHES, 2 CONTRIBUTIONS UNBALANCED FAULTS REQUESTED *** SHORT CIRCUIT STUDY COMPLETE ***

JESSE BROWN VA 9-1

UTILITY DATA 9.0See letter from Ms. Laurie Wirtz at ComEd stating available fault current information on the attached sheet.

JESSE BROWN 10-1

APPLICABLE CODES AND STANDARDS 10.0These standards and codes are referenced and followed where appropriate: American National Standards Institute (ANSI)

IEEE/ANSI C37.09-1979 IEEE/ANSI C37.20.3-2013 IEEE/ANSI C37.20.4-2013 IEEE/ANSI C37.59-2007 IEEE Std C37.010-1999

National Fire Protection Association (NFPA)

NFPA-70®-2017: National Electrical Code (NEC) NFPA-70E®-2015: Standard for Electrical Safety in the Workplace

Institute of Electrical and Electronics Engineers (IEEE)

IEEE Std C37.010™-1999 IEEE Std C37.5™-1979 IEEE Std C37.13™-2008 IEEE Std C37.41™-2008 IEEE Std C57.12.00TM-2006 IEEE Std C57.12.01TM-2015 IEEE Std 141™-1993 (Red Book) IEEE Std 242™-2001 (Buff Book) IEEE Std 946™-2004 IEEE Std 1584 TM-2002 IEEE Std 1015™-2006 (Blue Book)

Occupational Safety and Health Administration (OSHA)

Standards – 29 CFR 1910.333 - Selection and use of work practices

JESSE BROWN 11-1

ONE-LINE DIAGRAM INDEX 11.0See power system study one-line diagram, drawing abbreviations and symbols.

Attached one-line diagram(s) may include the following abbreviations and symbols. Symbol to have identifier abbreviation followed by the following with field tag as the suffix.

Abbreviations Description Symbol

ATS Automatic Transfer Switch

CBL Cable / Feeder

MCB / MN FCB CB

Main Circuit Breaker Feeder Circuit Breaker Circuit Breaker

FU Fuse BUS DISC PNL SWBD SWGR

Equipment Bus Disconnect Panel / Distribution Panel Switchboard Switchgear

MTR Motor

R Relay

TX Transformer

UTIL Utility Source

SW BPS

Disconnect Switch Bolted Pressure Switch

GEN Generator

E N

S

P

Documents

EATON ELECTRICAL SERVICES AND SYSTEMS 210 WINDY …