CALCULATION (1) EC # 11753 COVER PAGE · CALCULATION COVER PAGE (1) EC # 11753 (2)Page 1 of 50 ... Series Time Delay Relay used at River Bend Station that meets the criteria listed

ANO-1 ANO-2 GGNS IP-2 IP-3 PLP

JAF PNPS RBS VY W3

CALCULATION COVER PAGE

(1) EC # 11753 (2)Page 1 of 50

(3) Design Basis Calc. YES NO

(4) CALCULATION EC Markup

(5 ) Calculation No: G13.18.6.3-014 (6) Revision: 0

(7) Title: Drift Study for Agastat ETR Series Time Delay Relays

(8) System(s): 203, 403 (9) Review Org (Department): NSBE3 (I&C Design)

(10) Safety Class:

Safety / Quality Related

Augmented Quality Program

Non-Safety Related

(11) Component/Equipment/Structure Type/Number:

E22-S004-ACBR-62S3 E22-S004-ACB1-62S4

E22-S004-ACBR-62S5 E22-S004-ACB1-62S6

HVR-A02-62A HVR-B02-62A

(12) Document Type: F43.02

(13) Keywords (Description / Topical Codes): Drift

REVIEWS

(14) Name/Signature/Date Robert Hunter /

/ 2-11-09

(15) Name/Signature/Date Richard J. Hannigan

/ 2-11-09

(16) Name/Signature/Date

See AS for electronic signature

Responsible Engineer Design Verifier Supervisor/Approval Reviewer

Comments Attached Comments Attached

lbrescher

Line

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 2 OF 14

CALCULATION REFERENCE SHEET

CALCULATION NO: G13.18.6.3-014

REVISION: 0

I. EC Markups Incorporated None

II. Relationships: Sht Rev Input Doc

Output Doc

Impact Y/N

Tracking No.

328113 NA ⌧ 341045 NA ⌧ 341654 NA ⌧ 344293 NA ⌧ 350913 NA ⌧ 350914 NA ⌧ 358911 NA ⌧ 359922 NA ⌧ 362327 NA ⌧ 371448 NA ⌧ 371449 NA ⌧ CR-RBS-1999-1449 NA ⌧ CR-RBS-2001-0064 NA ⌧ CR-RBS-2008-01550 0 ⌧ CR-RBS-2008-01783 0 ⌧ ECH-NE-08-00015 0 ⌧ G13.18.6.2-ENS*007 0 000 ⌧ Y EC11753 STP-302-1604 1 7 ⌧ STP-302-1604 1 9 ⌧ STP-302-1604 1 10 ⌧ STP-302-1604 1 11 ⌧ STP-302-1604 1 12 ⌧ STP-302-1604 2 7 ⌧ STP-302-1604 3 7 ⌧ STP-302-1605 1 12 ⌧ STP-302-1605 1 13 ⌧ STP-302-1605 1 14 ⌧ STP-403-1300 1 9 ⌧ STP-403-1300 1 10 ⌧ STP-403-1300 2 10 ⌧ STP-403-1301 1 2 ⌧ STP-403-1301 1 3 ⌧ WO-50374409 0 ⌧ WO-50374410 0 ⌧ WO-50688117 0 ⌧


CALCULATION REFERENCE SHEET

CALCULATION NO: G13.18.6.3-014

REVISION: 0

II. Relationships (cont’d): Sht Rev Input Doc

Output Doc

Impact Y/N

Tracking No.

WO-50688140 0 ⌧ WO-50688141 0 ⌧ WO-50967748 0 ⌧ WO-50981804 0 ⌧ WO-51005340 0 ⌧ WO-51006660 0 ⌧ WO-51011563 0 ⌧ WO-51037963 0 ⌧ WO-51037964 0 ⌧ WO-51048546 0 ⌧ WO-51053418 0 ⌧ WO-51207246 0 ⌧

III. CROSS REFERENCES:

1. American National Standard N15.15-1974, Assessment of the Assumption of Normality (Employing Individual Observed Values)

2. ANSI/ISA-S67.04-Part I-2000, Setpoints for Nuclear Safety Related Instrumentation 3. DOE Research and Development Report No. WAPD-TM-1292, Statistics for Nuclear

Engineers and Scientists Part 1: Basic Statistical Inference, February 1981 4. EPRI TR-103335R1, Statistical Analysis of Instrument Calibration Data; Guidelines for

Instrument Calibration Extension / Reduction Programs, October 1998 5. ISA-RP67.04-Part II-2000, Methodologies for the Determination of Setpoints for Nuclear

Safety-Related Instrumentation, Second Printing, June 12, 1995 6. NRC Generic Letter 91-04, Changes in Technical Specification Surveillance Requirements to

Accommodate a 24 Month Fuel Cycle, April 2, 1991

IV. SOFTWARE USED:

Title: N/A Version/Release: Disk/CD No.

V. DISK/CDS INCLUDED:

Title: N/A Version/Release Disk/CD No.

VI. OTHER CHANGES:


Revision Record of Revision

0

Initial issue.


TABLE OF CONTENTS 1 Purpose ................................................................................................................................................. 6

2 Conclusions ........................................................................................................................................... 7

3 Design Inputs......................................................................................................................................... 7

4 References............................................................................................................................................. 7

5 Assumptions.......................................................................................................................................... 8

6 Method of Analysis................................................................................................................................ 8

7 Analysis.................................................................................................................................................. 9

8 Attachments ........................................................................................................................................ 14

Attachment 1 – Drift Analysis Supporting Information (Excel Spreadsheet) – 28 pages Attachment 2 – DVR Forms with Comments – 8 pages


1 Purpose

1.1 The purpose of this analysis is to establish more realistic drift values and characteristics to be used by instrument uncertainty calculations for determination of setpoints and allowable values for the subject instrumentation. The drift values are determined by historical As Found / As Left data analysis.

1.2 Specifically, this analysis addresses Agastat ETR Series Time Delay Relays with tag numbers as shown in Table 1.2-1 below. Also shown in the table are the calibration procedure numbers, device functions, and applicable Technical Specification (TS) sections. The results of this analysis can be conservatively applied to any Agastat ETR Series Time Delay Relay used at River Bend Station that meets the criteria listed in Section 3.5.3 of Reference 4.1.3, “Considerations When Combining Instruments Into a Single Group”.

TABLE 1.2-1 COMPONENT LIST

PROCEDURE NO. TAG NO. FUNCTION TS SECTION

STP-302-1604 E22-S004-62S3 E22-S004-62S4

Loss of Power (LOP) Instrumentation

Division 3 - 4.16 kV Emergency Bus Undervoltage

Loss of Voltage - Time Delay

3.3.8.1.3-2.b

STP-302-1605 E22-S004-62S5 E22-S004-62S6

Loss of Power (LOP) Instrumentation

Division 3 - 4.16 kV Emergency Bus Undervoltage

Degraded Voltage - Time Delay, No LOCA

3.3.8.1.3-2.d

STP-403-1300 STP-403-1301

HVR-A02-62A HVR-B02-62A

Containment Unit Cooler System Instrumentation

System A and System B Timers

3.3.6.3.4-4


2 Conclusions

2.1 The bounding Analyzed Drift (DA) for the Agastat ETR Series Time Delay Relays (See Table 1.2-1) has been determined to be 3.725% Setpoint for 30 months (24 months + 25%), with no significant bias. The Analyzed Drift should be treated as a normally distributed, 2 value for uncertainty analysis.

2.2 The results of this analysis can be conservatively applied to all of the relays in Table 1.2-1 and to any Agastat Series Time Delay Relay used at River Bend Station, which meets the criteria listed in Section 3.5.3 of Reference 4.1.3, “Considerations When Combining Instruments Into a Single Group”.

3 Design Inputs

3.1 Pages 1 thru 4 of Attachment 1 provide a listing of the historical As Left (AL) and As Found (AF) data, as obtained from Reference 4.2.1, with any data exclusions or modifications noted. All dates of calibration are also entered to provide time intervals between calibrations.

4 References

4.1 METHODOLOGY

4.1.1 ANSI/ISA-S67.04-Part I-2000, “Setpoints for Nuclear Safety Related Instrumentation”

4.1.2 ISA-RP67.04-Part II-2000, "Methodologies for the Determination of Setpoints for Nuclear Safety-Related Instrumentation," Second Printing, June 12, 1995

4.1.3 ECH-NE-08-00015, “Instrument Drift Analysis Design Guide," Rev. 0, Generated by EXCEL Services Corporation, July 2008

4.1.4 EPRI TR-103335R1, "Statistical Analysis of Instrument Calibration Data; Guidelines for Instrument Calibration Extension / Reduction Programs," October, 1998

4.1.5 DOE Research and Development Report No. WAPD-TM-1292, "Statistics for Nuclear Engineers and Scientists Part 1: Basic Statistical Inference," February 1981

4.1.6 NRC Generic Letter 91-04, "Changes in Technical Specification Surveillance Requirements to Accommodate a 24 Month Fuel Cycle," April 2, 1991

4.1.7 American National Standard N15.15-1974, "Assessment of the Assumption of Normality (Employing Individual Observed Values)"

4.2 PROCEDURES

4.2.1 Historical Calibration Records from RBS Surveillance Test Procedure Results for STP-302-1604, STP-302-1605, STP-403-1300, and STP-403-1301.

4.3 MISCELLANEOUS REFERENCES

4.3.1 None


5 Assumptions

5.1 This drift report employs those assumptions customarily used for standard statistical analyses, as directed by Reference 4.1.3, such as the assumption that a distribution is normal and the use of statistical tests to confirm this hypothesis.

5.2 This drift report is based on analysis of historical As Found and As Left data from calibration records for the devices listed in Table 1.2-1. The results of this analysis can also apply to any Agastat ETR Series Time Delay Relay used at RBS, but care must be taken when applying these results. Specifically, in order to apply the results of this analysis to other similar devices, the devices must meet the criteria listed in Section 3.5.3 of Reference 4.1.3, “Considerations When Combining Instruments Into a Single Group”.

6 Method of Analysis

6.1 The methodology used for this analysis is Reference 4.1.3, which is written in accordance with Reference 4.1.4, using References 4.1.1, 4.1.2 and 4.1.7 to supplement. An overview of the methodology is given herein, and any deviation from Reference 4.1.3 or any supplemental methods used herein are described.

6.2 This analysis determines the drift values for the subject instrumentation by analysis of historical As Found / As Left data from calibration records. Drift for a given device for a calibration period is determined by subtracting the previous As Left setting from a more recent As Found setting. The time interval for that calibration period is determined by subtracting the previous date from the more recent date, in units of days. All retrievable As Left and As Found data is collected for each calibration performed on each device covered by this report, for the study period. From this information, the drift and calibration interval is generated for each possible instance. Per Section 3.4.2 of Reference 4.1.3, "The goal is to collect enough data for the instrument or group to make a statistically valid pool." The devices covered by this report are currently calibrated on an 18 Month basis, and the proposed extension is for a 24 Month nominal calibration interval. Therefore, a study period of 16 years represents approximately ten of the present calibration cycles, and eight of the proposed calibration cycles, which is adequate to understand the component's performance over time. Also, a sufficient number of valid drift values are provided as a result of the selected study period to make a statistically valid pool. Therefore, As Found and As Left Data values are entered from calibrations occurring for approximately the last 10 to 16 years, depending on data availability.

6.3 Determination of the Analyzed Drift is generally accomplished through the following steps.

6.3.1 Gather and Generate Raw Drift Data: In addition to gathering the As Found and As Left data, and computing the drift values and time intervals, this step also involves an investigation into whether all of the devices should be analyzed together, or whether they should be separated into smaller analysis groups. Finally, this step involves careful screening of the input data for errors or other situations that could disrupt the proper determination of drift.

6.3.2 Determination of Outliers and Statistical Summary: In order to properly model the drift characteristics for a device, it could be proper to remove up to one more data


value, which obviously does not conform to the vast majority of the data. A t-Test is performed on the data to detect any outliers, and remove up to one if appropriate, per the guidelines of Reference 4.1.3. Additionally, the basic statistical values which describe the group of drift data are derived in this step, including such parameters as Mean, Standard Deviation, Count, Median, Minimum, Maximum, etc.

6.3.3 Tests for Normality: Per Reference 4.1.3, a statistical test (W or D-Prime, depending on sample size) is performed on the drift data to support the hypothesis that the data conforms to a normal distribution. If this test is unable to support that hypothesis, then a Coverage Analysis is performed to ensure that the data can be conservatively modeled by a normal distribution and to provide an adjustment to the standard deviation of the drift model, if necessary to conservatively envelop the observed data population.

6.3.4 Time-Dependency: Per Reference 4.1.3, Scatter Plots and a time-based Binning Analysis are developed for the data to establish the time-dependency of the drift. If enough drift data exists for significantly different time intervals, regression analysis is performed to aid in the determination of time-dependency. The drift data is determined to be strongly time dependent or moderately time dependent, for the purpose of extrapolation.

6.3.5 Analyzed Drift Derivation and Characterization: The drift values are determined for the current calibration interval. These values are conservatively extrapolated to the desired calibration interval, based on the methods prescribed in Reference 4.1.3, depending on the degree of time-dependency derived for the drift data.

6.4 The mathematical computations of the statistical analysis are performed within an Excel spreadsheet. Supporting information from the spreadsheet is printed out in the form of Attachment 1 to this analysis. Microsoft Excel spreadsheets generally compute values to an approximate 15 decimal resolution, which is well beyond any required rounding for engineering analyses. However, for printing and display purposes, most values are displayed to lesser resolution. It is possible that hand computations will produce slightly different results, because of using rounded numbers in initial and intermediate steps, but the Excel computed values are considered highly accurate in comparison.

6.5 Acceptance Criteria: Since the purpose of the analysis is to generate a value and description of the characteristics of the drift of the evaluated make/model, there are no specific acceptance criteria.

7 Analysis

7.1 Gather and Generate Raw Error Data

7.1.1 Specifically, this analysis addresses Agastat ETR Series Time Delay Relays, with the tag numbers as shown in Table 1.2-1 of this analysis. These relays have the same manufacturer and series, with model numbers differing only in range. These relays perform the same ‘delay on pull in’ function. Since the relays addressed in this analysis have different ranges and setpoints, pooling tests are required to determine whether or not it is appropriate to group the data from all the relays together. Three Groups based on setpoint are tested to determine whether pooling the three groups together for analysis is appropriate.

DRIFT ANALYSIS G13.18.6.3-014 ENGINEERING DEPARTMENT Revision 0 RIVER BEND STATION PAGE 10 OF 14 7.1.2 Data not entered into the analysis is listed in the table below, showing the reasoning

used in not entering the data.

Table 6.1.2-1 Data Not Entered in the Drift Analysis

Procedure

Number Tag Number Surveillance

Date(s) Comments/Disposition

STP-403-1300 HVR-A02-62A 03/16/2005

Relay was found failed. Technician found signs of over-heating. The relay was replaced and calibrated. This data point was excluded from this drift analysis since no As Found data was available.

STP-403-1300 HVR-A02-62A

09/11/99

Relay was found failed. Technician found signs of over-heating. The relay was replaced and calibrated. This data point was excluded from this drift analysis since no As Found data was available.

7.1.3 Pages 1 thru 4 of Attachment 1 provide a listing of the initial As Found and As Left data from available historical plant calibration records for the subject time delay relays. Note that the calibration dates are also recorded, and notes are provided to clarify the activities performed or to provide additional information about the data, as appropriate. This data was entered into an Excel spreadsheet for computation of the drift values, time intervals between calibrations and statistical analysis.

7.1.4 A screening of the initial input data from pages 1 thru 4 of Attachment 1 was performed. To help identify erroneous data, an informal critical T-test was performed, with the Critical T values reduced incrementally until approximately 10% of the data population was identified as outliers. Those outliers were researched, and no data errors were revealed. The specific informal T-tests performed are not documented, as they are only used as tools to identify potentially erroneous data and do not contribute to the analysis of the valid data.

7.1.5 Per the methodology of Section 4.1.1.11 of Reference 4.1.3, drift is computed by subtracting the As Left data of one calibration from the As Found data of the next calibration, as documented in pages 9 thru 12 of Attachment 1. These pages also document the time interval between calibrations (in the number of days and months) by subtracting the As Left date of one calibration from the As Found date of the next calibration, per Section 4.1.1.10 of Reference 4.1.3. Pages 9 thru 12 of Attachment 1 import the Sequence ID, the Tag ID., the AF / AL flags, the dates of calibration and the As Found and As Left data from pages 1 thru 4 (after data conversion on pages 5 thru 8) of Attachment 1 and computes the interval between calibrations. Pages 9 and 10 of Attachment 1 compute the drift values and summarize the time intervals computed. As an example of the equations used, the first drift value and time interval are computed as follows. The rest of the values are computed identically.


Drift (Seq 1) = AF (02/24/08) – AL (03/21/06) [For Tag E22-S004-62S3] = 97.467 (From Seq. 1 on Left) – 99.000 (From Seq. 4 on Left) = - 1.533 % Setpoint Cal Interval (Seq 1) = 02/24/08 - 03/21/06 = 705 Days Cal Interval (Mo.) = Cal Interval (Days) x 12 Months / 365.25 Days = 23.2 Months

7.1.6 Specific pooling tests are performed on the data, as documented on pages 15 and 16 of Attachment 1. The data is divided into three groups as shown below.

Table 7.1.6-1 Initial Pooling Groups

Group No.

Tags Model / Series Setpoint Application

1 E22-S004-62S3 E22-S004-62S4

ETR-14D3B 3.0 sec. Voltage Switch-Delay

on Energization

2 E22-S004-62S5 E22-S004-62S6

ETR-14D3E 54.9 sec. or

57.0 sec. Voltage Switch-Delay

on Energization

3 HVR-A02-62A HVR-B02-62A

ETR-14D3N 600.0 sec. Voltage Switch-Delay

on Energization

By inspection, the groups all sense voltage and provide a ‘Delay on Energization’ function. All three groups are the same series with differing ranges / setpoints. Therefore, the only significant variable which needs testing is the setpoint. Therefore, one specific pooling tests is performed as follows: 1. Group 1 versus Group 2 to test the setpoint difference, 2. Group 1 versus Group 3 to test the setpoint difference, and 3. Group 2 versus Group 3 to test the setpoint difference.

The t Tests are performed per Section 3.5.4 of Reference 4.1.3, to determine acceptability for pooling. As shown on pages 15 and 16 of Attachment 1, the magnitude of the t Statistic is less than the t Critical two-tail value for all three tests, indicating that it is acceptable to combine the data sets in each test. The standard deviations and means of the groups are similar enough for pooling. From an engineering standpoint, all data should be combined for drift analysis, as explained within Section 7.1.1, and the t Tests confirm this hypothesis. Therefore, it is acceptable to combine the all of the data for these Agastat ETR Series relays for drift analysis.

7.2 Determination of Outliers and Statistical Summary

7.2.1 The outlier analysis is recorded on pages 13 and 14 of Attachment 1 to this drift analysis. This page displays the Sequence No., Tag No., Drift, and Calibration Interval (in units of Days). The critical T value used in the outlier analysis comes directly from Table 2 of Reference 4.1.3. As shown on page 13 of Attachment 1,


one outlier was detected and removed. The Final Data Set (FDS) for this analysis is documented on pages 13 and 14 of Attachment 1.

7.2.2 A summary of the required statistical values for the Final Data Set, per Section 4.2 of Reference 4.1.3, is developed on page 13 of Attachment 1. Cell formulas for the determinations of statistical quantities are used directly from Section 4.2 of Reference 4.1.3.

7.3 Tests for Normality

7.3.1 Since the FDS contains less than 50 samples, the W Test is performed on the data to test for normality, as shown on page 17 of Attachment 1. Per the methodology of Section 3.7.2 of Reference 4.1.3, the details of the W Test methodology are shown in Reference 4.1.7. Equations used are listed on page 17 of Attachment 1. Since the calculated W statistic (0.9584) is greater than the critical value for W (0.947), this test does not reject the assumption of normality for this data set.

7.3.2 Since the W Test did not reject the assumption of normality, a Coverage Analysis is not necessary, but a Histogram is developed for information only. The Histogram is developed and documented on pages 19 and 20 of Attachment 1, per Sections 3.7.5 and 4.4 of Reference 4.1.3. To generate the Histogram data, the drift values are categorized into 12 bins, in relation to the mean and standard deviation. These bins are generated in multiples of ½ Standard Deviation increments, and the bin maximum values are derived in accordance with the methods given in Section 19 of Reference 4.1.4. (See page 19 of Attachment 1 for specific formulas used for the maximums.)

The expected populations within each bin are developed from normal distribution percentages, as shown on page 19 of Attachment 1.


7.4 Time-Dependency

7.4.1 In order to determine time-dependency of the drift data, the data is first plotted as a scatter plot on page 21 of Attachment 1, in accordance with the methodology of Section 4.5.1 of Reference 4.1.3. The trend line within this scatter plot starts at a negative value and becomes more negative (slightly) over the evaluation period. The data scatter increases over time, as confirmed by the increasing standard deviation from Bin 4 to Bin 5 and from Bin 5 to Bin 6. The trend line and the associated equation are noted on the scatter plot on page 21 of Attachment 1.

7.4.2 The binning analysis is performed as shown on pages 22 and 23 of Attachment 1. The drift and time interval data are divided into bins, based on the intervals between calibrations as defined in Section 3.8.3.1 of Reference 4.1.3. Statistical summaries for each bin, including count, mean, standard deviation, mean time interval and maximum observed time interval are computed. Excel functions are used to determine the statistical summary values for each bin, and are used explicitly from Sections 4.2.1, 4.2.2, 4.2.3 and 4.2.7 of Reference 4.1.3. This information is tabulated on page 22 of Attachment 1. Per Section 3.8.3.4 of Reference 4.1.3, after removing those bins with 5 or less data points and those with less than or equal to 10% of total population, only Bins 4 and 5 remain.

Page 23 of Attachment 1 displays a plot of the mean and standard deviations of the drift data versus the average time interval between calibrations for the subject bins, in accordance with Section 4.5.2 of Reference 4.1.3. It also provides all of the binning parameters and statistics that are a part of the binning analysis. The mean value of the data starts from a positive value in Bin 4 and crosses zero to a negative value for Bin 5. This represents a decrease in the magnitude of the mean which is not indicative of time dependency. Also, from this plot, the standard deviation increases from Bin 4 to Bin 5. In addition, the ratio of the variances (Bin 5 / Bin 4) is compared to the F critical value, as directed by Section 4.5.2 of Reference 4.1.3. Potentially strong time dependency is indicated for the random portion of drift from the variance test (Sections 3.8.3.4 and 4.5.2 of Reference 4.1.3).

7.4.3 Per Section 3.8.4 of Reference 4.1.3, a drift regression analysis is performed within pages 24 and 25 of Attachment 1. The equations and functions used by Excel are taken specifically from Section 3.8.4 of Reference 4.1.3. The regression analysis output shows an R Squared Value (0.000026) less than 0.09, a P Value greater than 0.05 (0.972533) and F Value (0.001199) less than F Critical (3.199582). These results all indicate that the bias portion of the drift is not time dependent. The regression line stays relatively constant within the analysis period, which per the last paragraph of Section 3.8.4 of Reference 4.1.3, is not indicative of time dependency, confirming the statistical test results. The bias portion of drift is conservatively treated as moderately time dependent for the purpose of extrapolation.

7.4.4 Per Section 3.8.4 of Reference 4.1.3, an absolute value drift regression analysis is performed within pages 26 and 27 of Attachment 1. The drift data is converted into absolute value via the Excel ABS function for each drift data value. The equations and functions used by Excel for the Regression analysis are taken specifically from Section 3.8.4 of Reference 4.1.3. This regression analysis output shows an R Squared Value (0.030798) less than 0.09, a P Value (0.232836) greater than 0.05, and an F Value (1.461713) less than F Critical (3.199582). These results all indicate a random portion of drift that is not time-dependent. The absolute value


drift regression line increases over time, and the binning plot shows an increasing standard deviation over time. Based on these results, per Section 3.8.4 of Reference 4.1.3, the random portion of drift is conservatively treated as moderately time-dependent for the purpose of extrapolation.

7.5 Analyzed Drift (DA) Derivation and Characterization

7.5.1 As shown on page 28 of Attachment 1, per Section 3.11 of Reference 4.1.3, the drift bias error is evaluated for significance. The critical value for significance of the bias term is computed and shown therein. The bias is determined to be negligible. Therefore, the computed Analyzed Drift Bias term (DAbias) is negligible.

7.5.2 Per Section 4.6.6 of Reference 4.1.3, the random portion of the Analyzed Drift is determined from multiplying the standard deviation of Bin 5 by the Tolerance Interval Factor (TIF), and extrapolating as required to a calibration interval of 30 months. Since the random portion of drift has been determined to be moderately time-dependent for the purpose of extrapolation, the standard deviation of Bin 5 is used with the average observed time interval from Bin 5 on page 22 of Attachment 1 as the starting point. The TIF is obtained from Table 1 of Reference 4.1.3 as 2.408 for a 95/95 significance. The computation of this value is shown on page 28 of Attachment 1 to result in a DArandom extrap term of 3.725% Setpoint.

8 Attachments Attachment 1 – Analysis Spreadsheet (28 pages) Spreadsheet Contents Pages Input Data 1-4 Data Conversion 5-8 AF-AL Data 9-12 Outliers & Summary 13-14 Pooling Tests 15-16 W Test 17-18 Histogram 19-20 Scatter Plot 21 Binning Analysis 22-23 Regression – Drift 24-25 Regression – AV of Drift 26-27 Analyzed Drift (DA) 28

Attachment 2 – DVR Forms with Comments (8 pages)

DRIFT ANALYSISRIVER BEND STATION

AGASTAT ETR SERIES TIME DELAY RELAYSInput Data

G13.18.6.3-014 Rev. 0Attachment 1Page 1 of 28

Seq. ID Tag ID Date Procedure Make/Model

AF/ AL Setpt

AF / AL Data Units Comments

1 E22-S004-62S3 2/24/2008 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.924 sec Post maintenance testing per WO 503723502 E22-S004-62S3 2/24/2008 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.925 sec3 E22-S004-62S3 3/21/2006 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.980 sec4 E22-S004-62S3 3/21/2006 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.970 sec5 E22-S004-62S3 6/17/2004 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.980 sec6 E22-S004-62S3 6/17/2004 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.980 sec7 E22-S004-62S3 5/21/2003 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.970 sec8 E22-S004-62S3 5/21/2003 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.980 sec9 E22-S004-62S3 11/8/2001 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.940 sec

10 E22-S004-62S3 11/8/2001 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.940 sec11 E22-S004-62S3 3/8/2000 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.950 sec12 E22-S004-62S3 3/8/2000 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.950 sec13 E22-S004-62S3 4/13/1999 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.950 sec14 E22-S004-62S3 4/13/1999 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.950 sec15 E22-S004-62S3 8/19/1997 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.970 sec15 E22 S004 62S3 8/19/1997 STP 302 1604 Agastat ETR 14D3B AF 3.000 2.970 sec16 E22-S004-62S3 8/19/1997 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.970 sec17 E22-S004-62S3 1/13/1996 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.960 sec18 E22-S004-62S3 1/13/1996 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.960 sec

19 E22-S004-62S3 5/20/1994 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.980 sec Post maintenance testing per WO 50372355.

20 E22-S004-62S3 5/20/1994 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.980 sec21 E22-S004-62S3 7/6/1992 STP-302-1604 Agastat ETR-14D3B AF 3.000 3.060 sec22 E22-S004-62S3 7/6/1992 STP-302-1604 Agastat ETR-14D3B AL 3.000 3.060 sec23 E22-S004-62S4 2/24/2008 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.989 sec24 E22-S004-62S4 2/24/2008 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.991 sec25 E22-S004-62S4 3/21/2006 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.940 sec26 E22-S004-62S4 3/21/2006 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.940 sec27 E22-S004-62S4 6/17/2004 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.910 sec28 E22-S004-62S4 6/17/2004 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.910 sec29 E22-S004-62S4 5/21/2003 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.920 sec30 E22-S004-62S4 5/21/2003 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.920 sec31 E22-S004-62S4 11/8/2001 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.900 sec32 E22-S004-62S4 11/8/2001 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.900 sec33 E22-S004-62S4 3/8/2000 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.890 sec34 E22-S004-62S4 3/8/2000 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.890 sec

35 E22-S004-62S4 4/13/1999 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.890 sec Post maintenance testing per WO 50372362

36 E22-S004-62S4 4/13/1999 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.890 sec37 E22-S004-62S4 8/19/1997 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.940 sec





AF/ AL Setpt


38 E22-S004-62S4 8/19/1997 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.940 sec39 E22-S004-62S4 1/13/1996 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.890 sec40 E22-S004-62S4 1/13/1996 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.890 sec41 E22-S004-62S4 5/20/1994 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.930 sec42 E22-S004-62S4 5/20/1994 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.930 sec43 E22-S004-62S4 7/6/1992 STP-302-1604 Agastat ETR-14D3B AF 3.000 2.994 sec44 E22-S004-62S4 7/6/1992 STP-302-1604 Agastat ETR-14D3B AL 3.000 2.994 sec45 E22-S004-62S5 2/24/2008 STP-302-1605 Agastat ETR-14D3E AF 54.900 55.214 sec46 E22-S004-62S5 2/24/2008 STP-302-1605 Agastat ETR-14D3E AL 54.900 55.220 sec

47 E22-S004-62S5 4/17/2007 STP-302-1605 Agastat ETR-14D3E AF 54.900 55.32 secRelay replaced due to expired date code. AF data from old relay.

48 E22-S004-62S5 4/17/2007 STP-302-1605 Agastat ETR-14D3E AL 54.900 55.32 sec49 E22-S004-62S5 6/14/2005 STP-302-1605 Agastat ETR-14D3E AF 54.900 56.95 sec50 E22-S004-62S5 6/14/2005 STP-302-1605 Agastat ETR-14D3E AL 54.900 54.90 sec51 E22-S004-62S5 6/17/2004 STP-302-1605 Agastat ETR-14D3E AF 54 900 57.410 sec51 E22 S004 62S5 6/17/2004 STP 302 1605 Agastat ETR 14D3E AF 54.900 57.410 sec52 E22-S004-62S5 6/17/2004 STP-302-1605 Agastat ETR-14D3E AL 54.900 56.910 sec

53 E22-S004-62S5 5/21/2003 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.250 sec Setpoint changed from 57.0 sec to 54.9 sec.

54 E22-S004-62S5 5/21/2003 STP-302-1605 Agastat ETR-14D3E AL 54.900 56.230 sec55 E22-S004-62S5 11/8/2001 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.800 sec56 E22-S004-62S5 11/8/2001 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.600 sec57 E22-S004-62S5 3/8/2000 STP-302-1605 Agastat ETR-14D3E AF 57.000 55.810 sec58 E22-S004-62S5 3/8/2000 STP-302-1605 Agastat ETR-14D3E AL 57.000 55.800 sec59 E22-S004-62S5 4/13/1999 STP-302-1605 Agastat ETR-14D3E AF 57.000 55.800 sec60 E22-S004-62S5 4/13/1999 STP-302-1605 Agastat ETR-14D3E AL 57.000 55.760 sec61 E22-S004-62S5 8/19/1997 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.130 sec62 E22-S004-62S5 8/19/1997 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.140 sec63 E22-S004-62S6 2/24/2008 STP-302-1605 Agastat ETR-14D3E AF 54.900 55.762 sec64 E22-S004-62S6 2/24/2008 STP-302-1605 Agastat ETR-14D3E AL 54.900 55.778 sec

65 E22-S004-62S6 4/17/2007 STP-302-1605 Agastat ETR-14D3E AF 54.900 55.52 secRelay replaced due to expired date code. AF data from old relay.

66 E22-S004-62S6 4/17/2007 STP-302-1605 Agastat ETR-14D3E AL 54.900 55.53 sec67 E22-S004-62S6 6/14/2005 STP-302-1605 Agastat ETR-14D3E AF 54.900 56.91 sec68 E22-S004-62S6 6/14/2005 STP-302-1605 Agastat ETR-14D3E AL 54.900 55.12 sec69 E22-S004-62S6 6/17/2004 STP-302-1605 Agastat ETR-14D3E AF 54.900 56.790 sec70 E22-S004-62S6 6/17/2004 STP-302-1605 Agastat ETR-14D3E AL 54.900 56.730 sec

71 E22-S004-62S6 5/21/2003 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.670 sec Setpoint changed from 57.0 sec to 54.9 sec.

72 E22-S004-62S6 5/21/2003 STP-302-1605 Agastat ETR-14D3E AL 54.900 56.660 sec





AF/ AL Setpt


73 E22-S004-62S6 11/8/2001 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.400 sec74 E22-S004-62S6 11/8/2001 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.400 sec75 E22-S004-62S6 3/8/2000 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.530 sec76 E22-S004-62S6 3/8/2000 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.510 sec77 E22-S004-62S6 4/13/1999 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.150 sec78 E22-S004-62S6 4/13/1999 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.100 sec79 E22-S004-62S6 8/19/1997 STP-302-1605 Agastat ETR-14D3E AF 57.000 56.680 sec80 E22-S004-62S6 8/19/1997 STP-302-1605 Agastat ETR-14D3E AL 57.000 56.660 sec81 HVR-A02-62A 3/4/2008 STP-403-1300 Agastat ETR-14D3N AF 600.000 590.29 sec82 HVR-A02-62A 3/4/2008 STP-403-1300 Agastat ETR-14D3N AL 600.000 590.27 sec83 HVR-A02-62A 8/1/2006 STP-403-1300 Agastat ETR-14D3N AF 600.000 592.29 sec84 HVR-A02-62A 8/1/2006 STP-403-1300 Agastat ETR-14D3N AL 600.000 591.30 sec

85 HVR-A02-62A 3/16/2005 STP-403-1300 Agastat ETR-14D3N AF 600.000 FAIL secRelay was overheated and failed. Relay replaced.

86 HVR-A02-62A 3/16/2005 STP-403-1300 Agastat ETR-14D3N AL 600 000 586 00 sec86 HVR-A02-62A 3/16/2005 STP-403-1300 Agastat ETR-14D3N AL 600.000 586.00 sec87 HVR-A02-62A 10/28/2003 STP-403-1300 Agastat ETR-14D3N AF 600.000 574.00 sec88 HVR-A02-62A 10/28/2003 STP-403-1300 Agastat ETR-14D3N AL 600.000 574.00 sec89 HVR-A02-62A 6/14/2002 STP-403-1300 Agastat ETR-14D3N AF 600.000 579.60 sec90 HVR-A02-62A 6/14/2002 STP-403-1300 Agastat ETR-14D3N AL 600.000 579.70 sec91 HVR-A02-62A 1/26/2001 STP-403-1300 Agastat ETR-14D3N AF 600.000 576.00 sec92 HVR-A02-62A 1/26/2001 STP-403-1300 Agastat ETR-14D3N AL 600.000 575.00 sec

93 HVR-A02-62A 9/11/1999 STP-403-1300 Agastat ETR-14D3N AF 600.000 FAIL secRelay was overheated and failed. Relay replaced per MAI 328113. AL Data recorded in file STP-403-1300 990911-2.pdf.

94 HVR-A02-62A 9/11/1999 STP-403-1300 Agastat ETR-14D3N AL 600.000 592.00 sec95 HVR-A02-62A 4/24/1998 STP-403-1300 Agastat ETR-14D3N AF 600.000 589.60 sec96 HVR-A02-62A 4/24/1998 STP-403-1300 Agastat ETR-14D3N AL 600.000 589.60 sec97 HVR-B02-62A 3/24/2008 STP-403-1301 Agastat ETR-14D3N AF 600.000 579.89 sec98 HVR-B02-62A 3/24/2008 STP-403-1301 Agastat ETR-14D3N AL 600.000 579.98 sec

99 HVR-B02-62A 10/12/2006 STP-403-1301 Agastat ETR-14D3N AF 600.000 568.00 sec

During inspection relay exhibited heat damage (per technician relay "was damaged but functional") so it was replaced. AF was from old relay, AL ecorded from 2nd test in file STP-403-1301 061017.pdf.

100 HVR-B02-62A 10/12/2006 STP-403-1301 Agastat ETR-14D3N AL 600.000 592.00 sec101 HVR-B02-62A 5/26/2005 STP-403-1301 Agastat ETR-14D3N AF 600.000 598.64 sec102 HVR-B02-62A 5/26/2005 STP-403-1301 Agastat ETR-14D3N AL 600.000 598.62 sec





AF/ AL Setpt


103 HVR-B02-62A 1/8/2004 STP-403-1301 Agastat ETR-14D3N AF 600.000 598.02 sec104 HVR-B02-62A 1/8/2004 STP-403-1301 Agastat ETR-14D3N AL 600.000 597.81 sec105 HVR-B02-62A 8/19/2002 STP-403-1301 Agastat ETR-14D3N AF 600.000 597.38 sec106 HVR-B02-62A 8/19/2002 STP-403-1301 Agastat ETR-14D3N AL 600.000 597.24 sec107 HVR-B02-62A 4/6/2001 STP-403-1301 Agastat ETR-14D3N AF 600.000 588.82 sec108 HVR-B02-62A 4/6/2001 STP-403-1301 Agastat ETR-14D3N AL 600.000 588.71 sec

109 HVR-B02-62A 1/11/2001 STP-403-1301 Agastat ETR-14D3N AF 600.000 597.70 sec

During inspection relay exhibited heat damage ("relay good functional but failed inspection") so it was replaced. AF was from old relay, recorded from 2nd test in file STP-403-1301 010112.pdf.

110 HVR-B02-62A 1/11/2001 STP-403-1301 Agastat ETR-14D3N AL 600.000 604.08 sec111 HVR-B02-62A 8/28/1999 STP-403-1301 Agastat ETR-14D3N AF 600.000 605.00 sec112 HVR-B02-62A 8/28/1999 STP-403-1301 Agastat ETR-14D3N AL 600.000 604.00 sec113 HVR-B02-62A 4/10/1998 STP-403-1301 Agastat ETR-14D3N AF 600.000 597.00 secg114 HVR-B02-62A 4/10/1998 STP-403-1301 Agastat ETR-14D3N AL 600.000 594.00 sec


AGASTAT ETR SERIES TIME DELAY RELAYSData Conversion


Seq. ID Tag ID Date

AF/ AL

Setpoint(Seconds)

AF / AL Data(Seconds)

AF / AL Data(% Setpoint) Notes

1 E22-S004-62S3 2/24/2008 AF 3.000 2.924 97.467 Post maintenance testing per WO 503723502 E22-S004-62S3 2/24/2008 AL 3.000 2.925 97.5003 E22-S004-62S3 3/21/2006 AF 3.000 2.980 99.3334 E22-S004-62S3 3/21/2006 AL 3.000 2.970 99.0005 E22-S004-62S3 6/17/2004 AF 3.000 2.980 99.3336 E22-S004-62S3 6/17/2004 AL 3.000 2.980 99.3337 E22-S004-62S3 5/21/2003 AF 3.000 2.970 99.0008 E22-S004-62S3 5/21/2003 AL 3.000 2.980 99.3339 E22-S004-62S3 11/8/2001 AF 3.000 2.940 98.000

10 E22-S004-62S3 11/8/2001 AL 3.000 2.940 98.00011 E22-S004-62S3 3/8/2000 AF 3.000 2.950 98.33312 E22-S004-62S3 3/8/2000 AL 3.000 2.950 98.33313 E22-S004-62S3 4/13/1999 AF 3.000 2.950 98.33314 E22-S004-62S3 4/13/1999 AL 3.000 2.950 98.33315 E22-S004-62S3 8/19/1997 AF 3.000 2.970 99.00015 E22 S004 62S3 8/19/1997 AF 3.000 2.970 99.00016 E22-S004-62S3 8/19/1997 AL 3.000 2.970 99.00017 E22-S004-62S3 1/13/1996 AF 3.000 2.960 98.66718 E22-S004-62S3 1/13/1996 AL 3.000 2.960 98.66719 E22-S004-62S3 5/20/1994 AF 3.000 2.980 99.333 Post maintenance testing per WO 50372355.20 E22-S004-62S3 5/20/1994 AL 3.000 2.980 99.33321 E22-S004-62S3 7/6/1992 AF 3.000 3.060 102.00022 E22-S004-62S3 7/6/1992 AL 3.000 3.060 102.00023 E22-S004-62S4 2/24/2008 AF 3.000 2.989 99.63324 E22-S004-62S4 2/24/2008 AL 3.000 2.991 99.70025 E22-S004-62S4 3/21/2006 AF 3.000 2.940 98.00026 E22-S004-62S4 3/21/2006 AL 3.000 2.940 98.00027 E22-S004-62S4 6/17/2004 AF 3.000 2.910 97.00028 E22-S004-62S4 6/17/2004 AL 3.000 2.910 97.00029 E22-S004-62S4 5/21/2003 AF 3.000 2.920 97.33330 E22-S004-62S4 5/21/2003 AL 3.000 2.920 97.33331 E22-S004-62S4 11/8/2001 AF 3.000 2.900 96.66732 E22-S004-62S4 11/8/2001 AL 3.000 2.900 96.66733 E22-S004-62S4 3/8/2000 AF 3.000 2.890 96.33334 E22-S004-62S4 3/8/2000 AL 3.000 2.890 96.33335 E22-S004-62S4 4/13/1999 AF 3.000 2.890 96.333 Post maintenance testing per WO 5037236236 E22-S004-62S4 4/13/1999 AL 3.000 2.890 96.33337 E22-S004-62S4 8/19/1997 AF 3.000 2.940 98.00038 E22-S004-62S4 8/19/1997 AL 3.000 2.940 98.00039 E22-S004-62S4 1/13/1996 AF 3.000 2.890 96.333




Seq. ID Tag ID Date

AF/ AL

Setpoint(Seconds)



40 E22-S004-62S4 1/13/1996 AL 3.000 2.890 96.33341 E22-S004-62S4 5/20/1994 AF 3.000 2.930 97.66742 E22-S004-62S4 5/20/1994 AL 3.000 2.930 97.66743 E22-S004-62S4 7/6/1992 AF 3.000 2.994 99.80044 E22-S004-62S4 7/6/1992 AL 3.000 2.994 99.80045 E22-S004-62S5 2/24/2008 AF 54.900 55.214 100.57246 E22-S004-62S5 2/24/2008 AL 54.900 55.220 100.58347 E22-S004-62S5 4/17/2007 AF 54.900 55.320 100.765 Relay replaced due to expired date code. AF data from old relay.48 E22-S004-62S5 4/17/2007 AL 54.900 55.320 100.76549 E22-S004-62S5 6/14/2005 AF 54.900 56.950 103.73450 E22-S004-62S5 6/14/2005 AL 54.900 54.900 100.00051 E22-S004-62S5 6/17/2004 AF 54.900 57.410 104.57252 E22-S004-62S5 6/17/2004 AL 54.900 56.910 103.66153 E22-S004-62S5 5/21/2003 AF 57.000 56.250 98.684 Setpoint changed from 57.0 sec to 54.9 sec.54 E22-S004-62S5 5/21/2003 AL 54 900 56 230 102 42354 E22 S004 62S5 5/21/2003 AL 54.900 56.230 102.42355 E22-S004-62S5 11/8/2001 AF 57.000 56.800 99.64956 E22-S004-62S5 11/8/2001 AL 57.000 56.600 99.29857 E22-S004-62S5 3/8/2000 AF 57.000 55.810 97.91258 E22-S004-62S5 3/8/2000 AL 57.000 55.800 97.89559 E22-S004-62S5 4/13/1999 AF 57.000 55.800 97.89560 E22-S004-62S5 4/13/1999 AL 57.000 55.760 97.82561 E22-S004-62S5 8/19/1997 AF 57.000 56.130 98.47462 E22-S004-62S5 8/19/1997 AL 57.000 56.140 98.49163 E22-S004-62S6 2/24/2008 AF 54.900 55.762 101.57064 E22-S004-62S6 2/24/2008 AL 54.900 55.778 101.59965 E22-S004-62S6 4/17/2007 AF 54.900 55.520 101.129 Relay replaced due to expired date code. AF data from old relay.66 E22-S004-62S6 4/17/2007 AL 54.900 55.530 101.14867 E22-S004-62S6 6/14/2005 AF 54.900 56.910 103.66168 E22-S004-62S6 6/14/2005 AL 54.900 55.120 100.40169 E22-S004-62S6 6/17/2004 AF 54.900 56.790 103.44370 E22-S004-62S6 6/17/2004 AL 54.900 56.730 103.33371 E22-S004-62S6 5/21/2003 AF 57.000 56.670 99.421 Setpoint changed from 57.0 sec to 54.9 sec.72 E22-S004-62S6 5/21/2003 AL 54.900 56.660 103.20673 E22-S004-62S6 11/8/2001 AF 57.000 56.400 98.94774 E22-S004-62S6 11/8/2001 AL 57.000 56.400 98.94775 E22-S004-62S6 3/8/2000 AF 57.000 56.530 99.17576 E22-S004-62S6 3/8/2000 AL 57.000 56.510 99.14077 E22-S004-62S6 4/13/1999 AF 57.000 56.150 98.50978 E22-S004-62S6 4/13/1999 AL 57.000 56.100 98.421




Seq. ID Tag ID Date

AF/ AL

Setpoint(Seconds)



79 E22-S004-62S6 8/19/1997 AF 57.000 56.680 99.43980 E22-S004-62S6 8/19/1997 AL 57.000 56.660 99.40481 HVR-A02-62A 3/4/2008 AF 600.000 590.290 98.38282 HVR-A02-62A 3/4/2008 AL 600.000 590.270 98.37883 HVR-A02-62A 8/1/2006 AF 600.000 592.290 98.71584 HVR-A02-62A 8/1/2006 AL 600.000 591.300 98.55085 HVR-A02-62A 3/16/2005 AF 600.000 FAIL FAIL Relay was overheated and failed. Relay replaced.86 HVR-A02-62A 3/16/2005 AL 600.000 586.000 97.66787 HVR-A02-62A 10/28/2003 AF 600.000 574.000 95.66788 HVR-A02-62A 10/28/2003 AL 600.000 574.000 95.66789 HVR-A02-62A 6/14/2002 AF 600.000 579.600 96.60090 HVR-A02-62A 6/14/2002 AL 600.000 579.700 96.61791 HVR-A02-62A 1/26/2001 AF 600.000 576.000 96.00092 HVR-A02-62A 1/26/2001 AL 600.000 575.000 95.833

Relay was overheated and failed Relay replaced per MAI 328113 AL93 HVR-A02-62A 9/11/1999 AF 600.000 FAIL FAIL

Relay was overheated and failed. Relay replaced per MAI 328113. AL Data recorded in file STP-403-1300 990911-2.pdf.

94 HVR-A02-62A 9/11/1999 AL 600.000 592.000 98.66795 HVR-A02-62A 4/24/1998 AF 600.000 589.600 98.26796 HVR-A02-62A 4/24/1998 AL 600.000 589.600 98.26797 HVR-B02-62A 3/24/2008 AF 600.000 579.890 96.64898 HVR-B02-62A 3/24/2008 AL 600.000 579.980 96.663

99 HVR-B02-62A 10/12/2006 AF 600.000 568.000 94.667During inspection relay exhibited heat damage (per technician relay "was damaged but functional") so it was replaced. AF was from old relay, AL ecorded from 2nd test in file STP-403-1301 061017.pdf.

100 HVR-B02-62A 10/12/2006 AL 600.000 592.000 98.667101 HVR-B02-62A 5/26/2005 AF 600.000 598.640 99.773102 HVR-B02-62A 5/26/2005 AL 600.000 598.620 99.770103 HVR-B02-62A 1/8/2004 AF 600.000 598.020 99.670104 HVR-B02-62A 1/8/2004 AL 600.000 597.810 99.635105 HVR-B02-62A 8/19/2002 AF 600.000 597.380 99.563106 HVR-B02-62A 8/19/2002 AL 600.000 597.240 99.540107 HVR-B02-62A 4/6/2001 AF 600.000 588.820 98.137108 HVR-B02-62A 4/6/2001 AL 600.000 588.710 98.118

109 HVR-B02-62A 1/11/2001 AF 600.000 597.700 99.617During inspection relay exhibited heat damage ("relay good functional but failed inspection") so it was replaced. AF was from old relay, recorded from 2nd test in file STP-403-1301 010112.pdf.

110 HVR-B02-62A 1/11/2001 AL 600.000 604.080 100.680111 HVR-B02-62A 8/28/1999 AF 600.000 605.000 100.833112 HVR-B02-62A 8/28/1999 AL 600.000 604.000 100.667




Seq. ID Tag ID Date

AF/ AL

Setpoint(Seconds)



113 HVR-B02-62A 4/10/1998 AF 600.000 597.000 99.500114 HVR-B02-62A 4/10/1998 AL 600.000 594.000 99.000


AGASTAT ETR SERIES TIME DELAY RELAYSAF-AL Data


Seq. CAL DATE AF/ALAF/AL DATA

VALUEOUTLIERS

COMMENTSSeq.

DRIFT = (Current Cal AF Data - Prev

Cal AL Data)

ID Make/Model Number Tag ID mm/dd/yy Status % Setpoint Days Months ID Tag ID (% Setpoint) Days Months

1 Agastat ETR-14D3B E22-S004-62S3 02/24/08 AF 97.467 705 23.2 1 E22-S004-62S3 -1.533 705 23.2

2 Agastat ETR-14D3B E22-S004-62S3 02/24/08 AL 97.500 3 E22-S004-62S3 0.000 642 21.1

3 Agastat ETR-14D3B E22-S004-62S3 03/21/06 AF 99.333 642 21.1 5 E22-S004-62S3 0.000 393 12.9







10 Agastat ETR-14D3B E22-S004-62S3 11/08/01 AL 98.000 19 E22-S004-62S3 -2.667 683 22.4

11 Agastat ETR-14D3B E22-S004-62S3 03/08/00 AF 98.333 330 10.8



CAL INTERVAL = (Current Date - Previous Date)









21 Agastat ETR-14D3B E22-S004-62S3 07/06/92 AF 102.000 41 E22-S004-62S4 -2.133 683 22.4

22 Agastat ETR-14D3B E22-S004-62S3 07/06/92 AL 102.000









31 Agastat ETR-14D3B E22-S004-62S4 11/08/01 AF 96.667 610 20.0









G13.18.6.3-014 Rev. 0Attachment 1

Page 10 of 28


VALUEOUTLIERS

COMMENTSSeq.


Cal AL Data)






40 Agastat ETR-14D3B E22-S004-62S4 01/13/96 AL 96.333

41 Agastat ETR-14D3B E22-S004-62S4 05/20/94 AF 97.667 683 22.4 81 HVR-A02-62A -0.168 581 19.1

42 Agastat ETR-14D3B E22-S004-62S4 05/20/94 AL 97.667 83 HVR-A02-62A 1.048 503 16.5

43 Agastat ETR-14D3B E22-S004-62S4 07/06/92 AF 99.800

44 Agastat ETR-14D3B E22-S004-62S4 07/06/92 AL 99.800 87 HVR-A02-62A -0.950 501 16.5

45 Agastat ETR-14D3E E22-S004-62S5 02/24/08 AF 100.572 313 10.3 89 HVR-A02-62A 0.767 504 16.6

46 Agastat ETR-14D3E E22-S004-62S5 02/24/08 AL 100.583 91 HVR-A02-62A -2.667 503 16.5

47 Agastat ETR-14D3E E22-S004-62S5 04/17/07 AF 100.765 672 22.1

48 Agastat ETR-14D3E E22-S004-62S5 04/17/07 AL 100.765

49 Agastat ETR-14D3E E22-S004-62S5 06/14/05 AF 103.734 362 11.9 97 HVR-B02-62A -2.018 529 17.4

50 Agastat ETR-14D3E E22-S004-62S5 06/14/05 AL 100.000 99 HVR-B02-62A -5.103 504 16.6

51 Agastat ETR-14D3E E22-S004-62S5 06/17/04 AF 104.572 393 12.9 101 HVR-B02-62A 0.138 504 16.6

52 Agastat ETR-14D3E E22-S004-62S5 06/17/04 AL 103.661 103 HVR-B02-62A 0.130 507 16.7

53 Agastat ETR-14D3E E22-S004-62S5 05/21/03 AF 98.684 559 18.4 105 HVR-B02-62A 1.445 500 16.4

54 Agastat ETR-14D3E E22-S004-62S5 05/21/03 AL 102.423 107 HVR-B02-62A -2.543 85 2.8

55 Agastat ETR-14D3E E22-S004-62S5 11/08/01 AF 99.649 610 20.0 109 HVR-B02-62A -1.050 502 16.5

56 Agastat ETR-14D3E E22-S004-62S5 11/08/01 AL 99.298 111 HVR-B02-62A 1.833 505 16.6





61 Agastat ETR-14D3E E22-S004-62S5 08/19/97 AF 98.474

















Page 11 of 28


VALUEOUTLIERS

COMMENTSSeq.


Cal AL Data)








79 Agastat ETR-14D3E E22-S004-62S6 08/19/97 AF 99.439


81 Agastat ETR-14D3N HVR-A02-62A 03/04/08 AF 98.382 581 19.1

82 Agastat ETR-14D3N HVR-A02-62A 03/04/08 AL 98.378



85 Agastat ETR-14D3N HVR-A02-62A 03/16/05 AF FAIL 505 16.6








93 Agastat ETR-14D3N HVR-A02-62A 09/11/99 AF FAIL 505 16.6


95 Agastat ETR-14D3N HVR-A02-62A 04/24/98 AF 98.267


97 Agastat ETR-14D3N HVR-B02-62A 03/24/08 AF 96.648 529 17.4

98 Agastat ETR-14D3N HVR-B02-62A 03/24/08 AL 96.663

99 Agastat ETR-14D3N HVR-B02-62A 10/12/06 AF 94.667Identified as outlier and removed

504 16.6

















Page 12 of 28


VALUEOUTLIERS

COMMENTSSeq.


Cal AL Data)




113 Agastat ETR-14D3N HVR-B02-62A 04/10/98 AF 99.500



AGASTAT ETR SERIES TIME DELAY RELAYSOutliers & Summary


Page 13 of 28

Seq. ID Tag IDDrift

(% Setpoint)Cal Interval

(Days)

Extreme Studentized Deviate (T)

Final Drift Data Set

(% Setpoint)

Cal Interval (Days)

1 E22-S004-62S3 -1.533 705 0.988 -1.533 705

3 E22-S004-62S3 0.000 642 0.127 0.000 642

5 E22-S004-62S3 0.000 393 0.127 0.000 393

7 E22-S004-62S3 1.000 559 0.854 Mean (Average) -0.1746 1.000 5599 E22-S004-62S3 -0.333 610 0.115 Variance 1.8911 -0.333 610

11 E22-S004-62S3 0.000 330 0.127 Std. Dev. 1.3752 0.000 33013 E22-S004-62S3 -0.667 602 0.358 Sample Size (Count) 49 -0.667 60215 E22-S004-62S3 0.333 584 0.369 Maximum 2.149 0.333 58417 E22-S004-62S3 -0.667 603 0.358 Median 0.000 -0.667 60319 E22-S004-62S3 -2.667 683 1.812 Minimum -5.103 -2.667 683

Range 7.25323 E22-S004-62S4 1.633 705 1.315 Sum -8.556 1.633 70525 E22-S004-62S4 1.000 642 0.854 Kurtosis 2.315 1.000 64227 E22-S004-62S4 -0.333 393 0.115 Skewness -1.110 -0.333 39329 E22-S004-62S4 0.667 559 0.612 0.667 559

(Initial Data Set)

Raw Drift Data Statistics Summary

31 E22-S004-62S4 0.333 610 0.369 Critical T-Value (Upper 5% Signif.) 2.96 0.333 610

33 E22-S004-62S4 0.000 330 0.127 0.000 330

35 E22-S004-62S4 -1.667 602 1.085 Equation for Each Studentized Deviate: T= |Drift-Mean|/Std. Dev. -1.667 602

37 E22-S004-62S4 1.667 584 1.339 Crit T Value Lookup Value from Ref. 4.1.3 Table 2, per sample 1.667 584

39 E22-S004-62S4 -1.333 603 0.843 size. See Sections 3.6.1 and 3.6.2 of Reference 4.1.3. -1.333 603

41 E22-S004-62S4 -2.133 683 1.424 Outliers will be Denoted as such in "Final Data Set" column. -2.133 683

One Outlier Detected and Removed (Seq. 99)45 E22-S004-62S5 -0.193 313 0.013 -0.193 313

47 E22-S004-62S5 0.765 672 0.683 0.765 67249 E22-S004-62S5 0.073 362 0.180 0.073 362

51 E22-S004-62S5 2.149 393 1.690 Mean (Average) -0.0719 2.149 39353 E22-S004-62S5 -0.614 559 0.320 Variance 1.4037 -0.614 55955 E22-S004-62S5 1.754 610 1.403 Std. Dev. 1.1848 1.754 61057 E22-S004-62S5 0.088 330 0.191 Sample Size (Count) 48 0.088 33059 E22-S004-62S5 -0.596 602 0.307 Maximum 2.149 -0.596 602

Median 0.03663 E22-S004-62S6 0.423 313 0.434 Minimum -2.667 0.423 31365 E22-S004-62S6 0.729 672 0.657 Range 4.816 0.729 67267 E22-S004-62S6 0.328 362 0.365 Sum -3.453 0.328 36269 E22-S004-62S6 0.237 393 0.299 Kurtosis -0.079 0.237 39371 E22-S004-62S6 0.474 559 0.471 Skewness -0.448 0.474 559

73 E22-S004-62S6 -0.193 610 0.013 -0.193 61075 E22-S004-62S6 0.754 330 0.676 0.754 33077 E22-S004-62S6 -0.895 602 0.524 -0.895 602

(Final Data Set)Drift Data Statistics Summary


AGASTAT ETR SERIES TIME DELAY RELAYSOutliers & Summary


Page 14 of 28

Seq. ID Tag IDDrift

(% Setpoint)Cal Interval

(Days)

Extreme Studentized Deviate (T)

Final Drift Data Set

(% Setpoint)

Cal Interval (Days)

81 HVR-A02-62A -0.168 581 0.005 -0.168 58183 HVR-A02-62A 1.048 503 0.889 1.048 503

87 HVR-A02-62A -0.950 501 0.564 -0.950 50189 HVR-A02-62A 0.767 504 0.684 0.767 50491 HVR-A02-62A -2.667 503 1.812 -2.667 503

97 HVR-B02-62A -2.018 529 1.341 -2.018 52999 HVR-B02-62A -5.103 504 3.584 OUTLIER OUTLIER

101 HVR-B02-62A 0.138 504 0.228 0.138 504103 HVR-B02-62A 0.130 507 0.222 0.130 507105 HVR-B02-62A 1.445 500 1.178 1.445 500107 HVR-B02-62A -2.543 85 1.723 -2.543 85109 HVR-B02-62A -1.050 502 0.637 -1.050 502111 HVR B02 62A 1 833 505 1 460 1 833 505111 HVR-B02-62A 1.833 505 1.460 1.833 505


AGASTAT ETR SERIES TIME DELAY RELAYSPooling Tests


Page 15 of 28

These relays are the same ETR series, but with different ranges to accommodate the different setpoints.The relays perform the same 'delay on pull in' function.

Group 1: E22-S004-62S3, 4 Group 2: E22-S004-62S5, 6Group 2: E22-S004-62S5, 6 Group 3: HVR-A02-62A, HVR-B02-62A

Setpoint, Group 1: 3 seconds Setpoint, Group 2: 57 seconds and 54.9 secondsSetpoint, Group 2: 57 seconds and 54.9 seconds Setpoint, Group 3: 600 seconds

t-Test: Two-Sample Assuming Unequal Variances t-Test: Two-Sample Assuming Unequal Variances

Group 1 Group 2 Group 2 Group 3Mean -0.235 0.330122 Mean 0.330122 -0.33625Variance 1.404617 0.655107 Variance 0.655107 2.31835Observations 20 16 Observations 16 12Hypothesized Mean Difference 0 Hypothesized Mean Difference 0df 33 df 16t Stat -1.69488 t Stat 1.377142P(T<=t) one-tail 0.049758 P(T<=t) one-tail 0.093716t Critical one-tail 1.69236 t Critical one-tail 1.745884P(T<=t) two-tail 0.099517 P(T<=t) two-tail 0.187431t Critical two-tail 2.034515 t Critical two-tail 2.119905Standard Deviation 1.185165 0.809387 Standard Deviation 0.809387 1.522613


AGASTAT ETR SERIES TIME DELAY RELAYSPooling Tests


Page 16 of 28

Group 1: E22-S004-62S3, 4Group 3: HVR-A02-62A, HVR-B02-62A

Setpoint, Group 1: 3 secondsSetpoint, Group 3: 600 seconds

t-Test: Two-Sample Assuming Unequal Variances

Group 1 Group 3Mean -0.235 -0.33625Variance 1.404617 2.31835Observations 20 12Hypothesized Mean Difference 0df 19t Stat 0.197272P(T<=t) one-tail 0.422855t Critical one-tail 1.729133P(T<=t) two-tail 0.84571t Critical two-tail 2.093024Standard Deviation 1.185165 1.522613

Conclusion: The setpoints for these 3 switch groups vary greatly, and are tested for pooling.The standard deviations for the two groups are similar, and in all cases the magnitude of the t statistic is less than the t Critical two-tail value. From an engineering standpoint, there is little reason that these switches should perform differently. The t Tests confirm this hypothesis.Therefore, these groups are combined for analysis in units of "% setpoint".


AGASTAT ETR SERIES TIME DELAY RELAYSW Test


Page 17 of 28

DriftValues

"i" an-i+1* bi (Per

Step 4)

-2.667 1 0.3789 1.8248 Specific W Normality Test Methodology from Reference 4.1.7 and Section 19 of Reference 4.1.4

-2.667 2 0.2604 1.1718

-2.543 3 0.2281 0.9803 Steps to Perform:-2.133 4 0.2045 0.7771 1. Paste all final drift data into column 1.

-2.018 5 0.1855 0.6774 2. Sort in ascending order.

-1.667 6 0.1693 0.5268 3. Calculate S2 taking the variance of the drift data adjusted by (Count-1)

-1.533 7 0.1551 0.4004

-1.333 8 0.1423 0.3320 S2 = (n-1)(Variance (Drift))

-1.050 9 0.1306 0.2677

-0.950 10 0.1197 0.2055 where: n = Count

-0.895 11 0.1095 0.1817

-0.667 12 0.0998 0.1418 4. Calculate the Quantity b:

-0.667 13 0.0906 0.1264

-0.614 14 0.0817 0.1046 b = Sum[(an-i+1)(xn-i+1 - xi)]

-0.596 15 0.0731 0.07823-0.333 16 0.0648 0.04898 where: i = 1 to k

-0.333 17 0.0568 0.03787 k = (n)/2

-0.193 18 0.0489 0.02574 xi = Drift value at point number i

-0.193 19 0.0411 0.02141 an-i+1 values are taken from Table 1 of Reference 4.1.7.

-0.168 20 0.0335 0.01357 5. Calculate b2.

0.000 21 0.0259 0.00358 6. Compute the W Statistic and compare to the critical value at the 5% confidence

0.000 22 0.0185 0.00240 level. The table of critical values is given as Table 2 on page 9 of Reference 4.1.7.

0.000 23 0.0111 0.000970.000 24 0.0037 0.00027 W = b2/S2 Results:0.073 Since the W statistic, 0.9584, is greater than the0.088 Computed Values critical value for W, 0.947, this test does not0.130 b = 7.9515 S2 = 65.97272 reject the assumption of normality for this data set.0.138 (Per Step 4) b = 7.9515

0.237 * From Table 1 of Ref. 4.1.7. b2 = 63.2263

0.328 Count (n): 48

0.333 W = b2/S2 = 0.9584

0.333 W Critical = 0.947 5% Significance From Table 2 of Reference 4.1.7.

0.423


AGASTAT ETR SERIES TIME DELAY RELAYSW Test


Page 18 of 28

DriftValues

"i" an-i+1* bi (Per

Step 4)

0.474

0.667

0.729

0.754

0.765

0.767

1.000

1.000

1.048

1.445

1.633

1.667

1.754

1.833

2.149


AGASTAT ETR SERIES TIME DELAY RELAYSHistogram


Page 19 of 28

Bin No.

Bin DescriptionsNo. StDev

(NS)Bin Maximums =

Mean + (NS*StDev)Observed Frequency

Cumulative Probability (CPi)

(Table 18-2 Ref 4.1.4)

Normal Distribution Probability

(Pnorm = CPi-CPi-1)

Expected Frequency

(Ei = Pnorm*N)

1 Up to - 2.5 Standard Deviations from Mean -2.5 -3.0339 0 0.0062 0.0062 0.29762 -2.5 to -2.0 Standard Deviations from Mean -2.0 -2.4415 3 0.0228 0.0166 0.79443 -2.0 to -1.5 Standard Deviations from Mean -1.5 -1.8491 2 0.0668 0.0441 2.11444 -1.5 to -1.0 Standard Deviations from Mean -1.0 -1.2567 3 0.1587 0.0919 4.40885 -1.0 to -0.5 Standard Deviations from Mean -0.5 -0.6643 5 0.3086 0.1499 7.19526 -0.5 Standard Deviations from Mean to Mean 0.0 -0.0719 7 0.5000 0.1915 9.18967 Mean to +0.5 Standard Deviations from Mean 0.5 0.5204 14 0.6915 0.1915 9.18968 +0.5 to +1.0 Standard Deviations from Mean 1.0 1.1128 8 0.8414 0.1499 7.19529 +1.0 to +1.5 Standard Deviations from Mean 1.5 1.7052 3 0.9332 0.0919 4.408810 +1.5 to +2.0 Standard Deviations from Mean 2.0 2.2976 3 0.9773 0.0441 2.114411 +2.0 to +2.5 Standard Deviations from Mean 2.5 2.8900 0 0.9938 0.0166 0.794412 More than Mean + 2.5 Standard Deviations More More 0 1.0000 0.0062 0.2976

Totals 48 48

Percentage for+/- Sigma Bounds

Observed Drift Values

ObservedPercentages

Percentage for Normal

Distribution2.5 (Bins 2-11) 48 100.00% Mean -0.07192 (Bins 3-10) 45 93.75% 95.45% Std. Dev. 1.18481.5 (Bins 4-9) 40 83.33% Sample Size 481 (Bins 5-8) 34 70.83% 68.27%

0.5 (Bins 6-7) 21 43.75%

Methodology for Histogram Taken from Section C.5 of Reference 4.1.4 and Section 3.7.5 of Reference 4.1.31. Order the drift data in ascending order.2. Obtain mean, standard deviation, and sample size.3. Establishing bins in 1/2 sigma increments from the mean to 2.5 sigma in both directions, derive the upper bin limits, in

units of drift, based on the values of the mean and standard deviation. 4. Obtain expected frequency for a normal distribution in each bin.5. Manually compute the number of observed drift data points within each bin, and list under observed frequency.6. Plot the Expected Frequency and the Observed Frequency Data on the Histogram for comparison to each other.

Results: Since the data passed the W Test for normality, a Coverage Analysis is not necessary. The Histogram is provided for information only.


AGASTAT ETR SERIES TIME DELAY RELAYSHistogram


Page 20 of 28

10

12

14

16

nHistogram of Drift - River Bend Station

Agastat ETR Relays

Observed Frequency

Normal Distribution

0

2

4

6

8

-3.0339 -2.4415 -1.8491 -1.2567 -0.6643 -0.0719 0.5204 1.1128 1.7052 2.2976 2.8900 More

Po

pu

lati

o

% Setpoint


AGASTAT ETR SERIES TIME DELAY RELAYSScatter Plot


Page 21 of 28

y = -5E-05x - 5E-02

1.0

2.0

3.0n

t

Scatter Plot - River Bend StationAgastat ETR Relays

Linear (Drift)

Note: Equation on Scatter Plot is computer generated, based on the associated trend line.

-3.0

-2.0

-1.0

0.0

0 100 200 300 400 500 600 700 800

% S

etp

oi

Time (Days)


AGASTAT ETR SERIES TIME DELAY RELAYSBinning Analysis


Page 22 of 28

Bin Statistics

Bin 1 Bin 2 Bin 3 Bin 4 Bin 5 Bin 6 Bin 7Count 1 12 33 2Standard Dev. N/A 0.6507 1.2301 2.2392Mean -2.5433 0.2938 -0.1374 0.0500Mean Interval 85.00 353.50 578.52 705.00Max Interval 85 393 683 705

Bin Definition and SelectionBin HiLimit Bin Population Bins

Bins (Days) Count Percentage Included1 45 0 0.0%2 135 1 2.1%3 230 0 0.0%4 460 12 25.0% 45 690 33 68.8% 56 915 2 4.2%7 Over 0 0.0%

Total Count: 48 100%

See Section 3.8.3 of Reference 4.1.3 for Binning Analysis Methodology.


AGASTAT ETR SERIES TIME DELAY RELAYSBinning Analysis


Page 23 of 28

Bin Time (days) Std Dev Mean4 353.50 0.6507 0.29385 578.52 1.2301 -0.1374

2.5613.574

Potential Strong TD of Random Drift?

Yes

Graph Summary

Test of VariancesF CriticalVariance Ratio

0.6

0.81.0

1.21.4

oin

t)

Binning Analysis - River Bend StationAgastat ETR Relays

Std Dev

Mean

-0.4-0.2

0.00.2

0.40.6

300 350 400 450 500 550 600D

rift

(%

Set

po

Time (Days)


AGASTAT ETR SERIES TIME DELAY RELAYSRegression - Drift


Page 24 of 28

Regression Analysis - Drift

F CriticalREGRESSION ANALYSIS 3.199582

SUMMARY OUTPUT

Regression StatisticsMultiple R 0.005104R Square 0.000026Adjusted R Square -0.021713Standard Error 1.197561Observations 48

ANOVAdf SS MS F Significance F

Regression 1 0.001719 0.00171885 0.001199 0.972533Residual 46 65.971003 1.43415224Total 47 65.972722

Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0%Intercept -0.048324 0.703668 -0.068675 0.945546 -1.464735 1.368087 -1.464735 1.368087X Variable 1 -0.000046 0.001319 -0.034620 0.972533 -0.002700 0.002609 -0.002700 0.002609


AGASTAT ETR SERIES TIME DELAY RELAYSRegression - Drift


Page 25 of 28

1.0

2.0

3.0

nt)

Drift Regression Line Fit Plot

D ift

-3.0

-2.0

-1.0

0.0

0 200 400 600 800Dri

ft (

% S

etp

oi

Time (Days)

Drift

Predicted Drift


AGASTAT ETR SERIES TIME DELAY RELAYSRegression - AV of Drift


Page 26 of 28

Regression Analysis - AV of Drift

F Critical

ABSOLUTE VALUE 3.199582REGRESSION ANALYSISSUMMARY OUTPUT

Regression StatisticsMultiple R 0.175493R Square 0.030798Adjusted R Square 0.009728Standard Error 0.764217Observations 48O 8

ANOVAdf SS MS F Significance F

Regression 1 0.853680 0.853680 1.461713 0.232836Residual 46 26.865255 0.584027Total 47 27.718935

Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0%Intercept 0.369353 0.449042 0.822536 0.415015 -0.534521 1.273228 -0.534521 1.273228X Variable 1 0.001017 0.000842 1.209013 0.232836 -0.000676 0.002711 -0.000676 0.002711


AGASTAT ETR SERIES TIME DELAY RELAYSRegression - AV of Drift


Page 27 of 28

2 0

2.5

3.0

po

int)

AV of Drift Regression Line Fit Plot

0.0

0.5

1.0

1.5

2.0

0 200 400 600 800

AV

of

Dri

ft (

% S

etp

Time (Days)

AV of Drift

Predicted AV of Drift


AGASTAT ETR SERIES TIME DELAY RELAYSAnalyzed Drift (DA)


Page 28 of 28

Drift Bias DeterminationFirst, the bias term is evaluated for significance per Section 3.10 of Reference 4.1.3.

Per Outlier Statistical Summary,

Count (N) 48 Drift Data PointsDrift Bias Term (Mean) -0.0719 % SetpointFDS Standard Deviation (Stdev) 1.1848 % Setpointt for Count = 48 Data Points 2.000 (Ref. 4.1.3, Table 4)

[Bias (Crit) = t * Stdev / (N)^0.5]Signficant Bias Critical Value 0.342 Deg F

Therefore, the bias value for this drift data set is not signficant, since the magnitude of the Bias is less than the Critical Bias Value.

DAbias = Negligible

Random Drift Determination

Time Dependency ModerateCount (N) 48 Drift Data PointsBin 5 Standard Deviation (Stdev) 1.2301 % SetpointMean Bin 5 Time Interval 579 DaysMaximum Required Cal Interval 915 DaysTolerance Interval Factor (TIF) 2.408 (Ref. 4.1.3, Table 1)

[Current Interval Drift = Stdev * TIF]

DArandom (current) = +/- 2.962 % Setpoint

[Extrap Drift = DArandom (current) * (Required Cal Interval / Mean Bin 5 Cal Interval)1/2]

DArandom (extrap) = +/- 3.725 % Setpoint for up to 915 Days

G13.18.6.3-014 Attachment 2 Page 1 of 8

DESIGN VERIFICATION COVER PAGE

ANO-1 ANO-2 IP-2 IP-3 JAF PLP

PNPS VY GGNS RBS W3 NP

Document No. G13.18.6.3-014

Revision No.

0

Page 1 of

Title: Drift Study for General Electric Model SAM11B Time Delay Relays

Quality Related Augmented Quality Related

DV Method: Design Review Alternate Calculation Qualification Testing

VERIFICATION REQUIRED DISCIPLINE VERIFICATION COMPLETE AND COMMENTS RESOLVED (DV print, sign, and

date) Electrical

Mechanical

Instrument and Control

Richard J. Hannigan

2/11/09 Civil/Structural

Nuclear

Originator:

R.A. Hunter 2/11/09 Print/Sign/Date After Comments Have Been Resolved


DESIGN VERIFICATION CHECKLIST SHEET 1 OF 3

IDENTIFICATION:

Document Title: Drift Study for General Electric Model SAM11B Time Delay Relays

Doc. No.:G13.18.6.3-013 Rev. 0 QA Cat. 1

Verifier:

Richard J. Hannigan 2/11/09 Print Sign Date

Manager authorization for supervisor performing

Verification.

N/A

_ _________________ ____________ Print Sign Date

DISCIPLINE:

Civil/Structural

Electrical

I & C

Mechanical

Nuclear

Other

METHOD OF VERIFICATION:

Design Review Alternate Calculations Qualification Test

The following basic questions are addressed as applicable, during the performance of any design verification. These questions are based on the requirements of ANSI N45.2.11 – 1974. NOTE The reviewer can use the “Comments/Continuation sheet” at the end for entering any

comment/resolution along with the appropriate question number. Additional items with new question numbers can also be entered.

1. Design Inputs – Were the inputs correctly selected and incorporated into the design?

(Design inputs include design bases, plant operational conditions, performance requirements, regulatory requirements and commitments, codes, standards, field data, etc. All information used as design inputs should have been reviewed and approved by the responsible design organization, as applicable.

All inputs need to be retrievable or excerpts of documents used should be attached.

See site specific design input procedures for guidance in identifying inputs.) Yes No N/A

2. Assumptions – Are assumptions necessary to perform the design activity adequately described

and reasonable? Where necessary, are assumptions identified for subsequent re-verification when the detailed activities are completed? Are the latest applicable revisions of design documents utilized?

Yes No N/A

3. Quality Assurance – Are the appropriate quality and quality assurance requirements

specified? Yes No N/A



4. Codes, Standards and Regulatory Requirements – Are the applicable codes, standards and

regulatory requirements, including issue and addenda properly identified and are their requirements for design met?

Yes No N/A

5. Construction and Operating Experience – Have applicable construction and operating

experience been considered? Yes No N/A

6. Interfaces – Have the design interface requirements been satisfied and documented?

Yes No N/A

7. Methods – Was an appropriate design or analytical (for calculations) method used?

Yes No N/A

8. Design Outputs – Is the output reasonable compared to the inputs?

Yes No N/A

9. Parts, Equipment and Processes – Are the specified parts, equipment, and processes

suitable for the required application? Yes No N/A

10. Materials Compatibility – Are the specified materials compatible with each other and the

design environmental conditions to which the material will be exposed? Yes No N/A

11. Maintenance requirements – Have adequate maintenance features and requirements

been specified? Yes No N/A

12. Accessibility for Maintenance – Are accessibility and other design provisions adequate for performance of needed maintenance and repair? Yes No N/A

13. Accessibility for In-service Inspection – Has adequate accessibility been provided to

perform the in-service inspection expected to be required during the plant life? Yes No N/A

14. Radiation Exposure – Has the design properly considered radiation exposure to the

public and plant personnel? Yes No N/A

15. Acceptance Criteria – Are the acceptance criteria incorporated in the design documents

sufficient to allow verification that design requirements have been satisfactorily accomplished?

Yes No N/A

16. Test Requirements – Have adequate pre-operational and subsequent periodic test requirements been appropriately specified? Yes No N/A



17. Handling, Storage, Cleaning and Shipping – Are adequate handling, storage, cleaning

and shipping requirements specified? Yes No N/A

18. Identification Requirements – Are adequate identification requirements specified?

Yes No N/A 19. Records and Documentation – Are requirements for record preparation, review, approval,

retention, etc., adequately specified? Are all documents prepared in a clear legible manner suitable for microfilming and/or other documentation storage method? Have all impacted documents been identified for update as necessary?

Yes No N/A

20. Software Quality Assurance- ENN sites: For a calculation that utilized software

applications (e.g., GOTHIC, SYMCORD), was it properly verified and validated in accordance with EN- IT-104 or previous site SQA Program? ENS sites: This is an EN-IT-104 task. However, per ENS-DC-126, for exempt software, was it verified in the calculation?

Yes No N/A

21. Has adverse impact on peripheral components and systems, outside the boundary of the

document being verified, been considered? Yes No N/A


DESIGN VERIFICATION COMMENT SHEET SHEET 1 OF 1

Comments / Continuation Sheet

Question #

Comments Resolution Initial/Date

NONE


During the independent review of calculation G13.18.6.3-014, alternate applications Lotus 1-2-3 and Quattro Pro were used to validate the results generated by MS Excel in the calculation. The reviewer independently generated the G13.18.6.3-014 results. In the table below the results of the validation for the G13.18.6.3-014 values and the values produced by Lotus 1-2-3 and Quattro Pro are illustrated for the Final Data Set – after removal of the single outlier. The results from Lotus 1-2-3 and Quattro Pro validated the calculation G13.18.6.3-014 results generated by MS Excel. Minor differences in the values between the MS Excel generated results and the Lotus 1-2-3 and Quattro Pro generated results were reviewed and can be attributed to rounding and conversion between applications. Below is a partial listing of some of the values from G13.18.6.3-014 that were validated:

Parameter

G13.18.6.3-014 Value

Validation Value

Validation Application

Valid?

Mean -0.0719 -0.0719 Lotus 1-2-3 Yes

Variance 1.4037 1.4037 Lotus 1-2-3 Yes

Standard

Deviation

1.1848 1.1848 Lotus 1-2-3 Yes

Count 48 48 Lotus 1-2-3 Yes

Max 2.149 2.149 Lotus 1-2-3 Yes

Median 0.036 0.036 Lotus 1-2-3 Yes

Min -2.667 -2.667 Lotus 1-2-3 Yes

Range 4.816 4.816 Lotus 1-2-3 Yes

Sum -3.453 -3.453 Lotus 1-2-3 Yes

Kurtosis -0.079 -0.079 Lotus 1-2-3 Yes

Skewness -0.448 -0.448 Lotus 1-2-3 Yes

Outliers

Sequ. ID 99 identified

as an outlier and removed

Sequ. ID 99 identified

as an outlier and removed

Lotus 1-2-3

Yes

Drift scatter plot with trend line

N/A

Visual inspection shows agreement

between the scatter plots and trend lines

Lotus 1-2-3

Yes

Drift scatter plot trend line

Y = -5E-05x - 5E-02

Y = -4.57E-05x -

0.0483

Lotus 1-2-3

Yes

W Test Value

0.9584 (does not reject

assumption of normality)

0.9584 (does not reject

assumption of normality)

Lotus 1-2-3

Yes

Histogram

N/A

Visual inspection shows agreement

between the histograms

Lotus 1-2-3

Yes


Parameter G13.18.6.3-014

Value Validation

Value Validation

Application

Valid? Data within 0.5

Standard Deviations

21

21

Lotus 1-2-3

Yes Data within 1.0

Standard Deviation

34

34

Lotus 1-2-3

Yes Data within 1.5

Standard Deviations

40

40

Lotus 1-2-3

Yes Data within 2.0

Standard Deviations

45

45

Lotus 1-2-3

Yes Data within 2.5

Standard Deviations

48

48

Lotus 1-2-3

Yes Bin 2 count 1 1 Lotus 1-2-3 Yes Bin 2 drift

Standard Deviation

NA

NA

Lotus 1-2-3

Yes Bin 2 drift mean -2.5433 -2.5433 Lotus 1-2-3 Yes

Bin 2 interval mean 85.00 85.00 Lotus 1-2-3 Yes Bin 2 interval

maximum

85

85

Lotus 1-2-3 Yes

Bin 4 count 12 12 Lotus 1-2-3 Yes Bin 4 drift

Standard Deviation

0.6507

0.6507

Lotus 1-2-3

Yes Bin 4 drift mean 0.2938 0.2938 Lotus 1-2-3 Yes


maximum

393

393

Lotus 1-2-3 Yes


Standard Deviation

1.2301

1.2301

Lotus 1-2-3

Yes Bin 5 drift mean -0.1374 -0.1374 Lotus 1-2-3 Yes


maximum

683

683

Lotus 1-2-3 Yes


Standard Deviation

2.2392

2.2392

Lotus 1-2-3

Yes Bin 6 drift mean 0.0500 0.0500 Lotus 1-2-3 Yes


maximum

705

705

Lotus 1-2-3 Yes

Binning Analysis Ratio of Variances

3.574 3.574 Lotus 1-2-3 Yes

Binning Analysis F Critical

2.561 3.561 Quattro Pro Yes


Parameter G13.18.6.3-014

Value Validation

Value Validation

Application

Valid?

Drift Regression Scatter Plot

NA

Visual inspection shows agreement between the two scatter plots and

trend lines.

Lotus 1-2-3

Yes

Drift Regression Scatter Plot Trend Line

Y = -0.000046x -0.048324

Y = -0.000046x -0.048301

Quattro Pro

Yes

Drift Regression R Square Value 0.000026 0.000026

Quattro Pro

Yes

Drift Regression F Value 0.001199 0.001201

Quattro Pro

Yes

F Crit Value 3.199582 3.199582 Quattro Pro Yes Drift Regression

P-Value 0.972533 0.972506

Quattro Pro

Yes

AV Drift Regression Scatter Plot

NA

Visual inspection shows agreement between the two scatter plots and

trend lines.

Lotus 1-2-3

Yes

AV Drift Regression Scatter Plot Trend Line

Y = 0.001017x + 0.369353

Y = 0.001017x + 0.369353

Quattro Pro

Yes

AV Drift Regression R Square Value

0.030798

0.030798

Quattro Pro

Yes

AV Drift Regression F Value

1.461713

1.461713

Quattro Pro

Yes

F Crit Value 3.199582 3.199582 Quattro Pro Yes AV Drift Regression

P-Value

0.232836

0.232705

Quattro Pro

Yes

Other values, including those based on the above parameters, were checked using hand calculations.

Documents

CALCULATION (1) EC # 11753 COVER PAGE · CALCULATION COVER PAGE (1) EC # 11753 (2)Page 1 of 50 ... Series Time Delay Relay used at River Bend Station that meets the criteria listed