Technical Specifications for Bay Control and Protection ... Office/1_TS_ Bay_Control... · from the bidder and collaborator accepting joint and ... SPECIFICATION FOR BAY CONTROL AND

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009

Seal & sign of Bidder Page 1 of 37

GUJARAT ENERGY TRANSMISSION

CORPORATION LTD.

SARADAR PATEL VIDYUT BHAVAN, RACE COURSE, BARODA – 390 007.

TECHNICAL SPECIFICATIONS

FOR

NUMERICAL

BAY CONTROL AND PROTECTION RELAYS (IEDS)

GETCO / E / TS- 3605 / R1 Dt. 20.06.2009

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


SPECIAL INSTRUCTIONS TO BIDDER Please read following instructions carefully before submitting your bid. 1. All the drawings, i.e. elevation, side view, plan, cross sectional view etc., in

AutoCAD format and manuals in PDF format, for offered item shall be submitted. Also the hard copies as per specification shall be submitted.

2. The bidder shall submit Quality Assurance Plan with the technical bid. 3. The bidder shall have to submit all the required type test reports for the offered

item. Bid without type tests will be evaluated accordingly. 4. The bidder must fill up all the points of GTP for offered item/s. Instead of

indicating “refer drawing, or as per IS/IEC”, the exact value/s must be filled in. 5. All the points other than GTP, which are asked to confirm in technical

specifications must be submitted separately with the bid. 6. The bidder is required to impart training in view of manufacture, assembly,

erection, operation and maintenance for offered item, at his works, to the person/s identified by GETCO, in the event of an order, free of cost. The cost of logistics will be bear by GETCO.

7. Please note that the evaluation will be carried out on the strength of content of

bid only. No further correspondence will be made. 8. The bidder shall bring out all the technical deviation/s only at the specified

annexure.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


QUALIFYING REQUIREMENT DATA

QUALIFYING REQUIREMENT FOR BIDDERS FOR RELAYS

1. The bidder shall be original equipment manufacturer (OEM). The offered Relay have to be designed manufactured and tested as per relevant IS/IEC with latest amendments.

1.A Bidders not meeting the requirements at 1 above but authorized by OEM having

qualifying requirement as per 1 above can also participate, provided they have valid ongoing collaboration with manufacturer. In such an event the bidder shall furnish, along with his bid, documentary evidence for the same and an undertaking from the bidder and collaborator accepting joint and several liabilities of all the obligations under the contract.

2. The minimum requirement of manufacturing capacity of offered type, size and

rating of Relays shall be as per Annexure-A. The bidder should indicate manufacturing capacity by submitting latest updated certificate of a Chartered Engineer (CE).

3. Relay offered shall be of similar or higher rating and in service for a minimum

period of THREE (3) years and satisfactory performance certificate from utilities like SEB’s, NTPC, PGCIL etc. in respect of this should be submitted.

4. The bidder should clearly indicate the quantity and single value contract executed

during last five (5) years for the offered product. Bidder should have executed one single contract during last five years for the quantity equivalent to tender / bid. The details should be submitted as per following format.

Sr.

No.

ITEMS

SUPPLIED

TO

ORDER

REFERENCE

NO. & DATE

ITEMS QUANTITY ORDER

FULLY

EXECUTED

YES/NO

STATUS

IF ORDER

UNDER

EXECUTION

REMARKS

5. Relay offered shall have type test certificates from accredited laboratory

(accredation based on ISO/IEC/Guide 25/17025 or EN 45001 by the national accredation body of the country where the lab is located.) as per IS/IEC/Technical specification, not older than FIVE (5) years and valid till expiry of the offer.

6. The bidder shall guarantee for supplying maintenance spares and services as well

as repairing of relays for a period of the life expectancy of 25 years.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


ANNEXURE - A

Sr. No.

Product Annual manufacturing capacity (In multiple of tender / bid quantity)_

1 Relays 5

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


SECTION –I

SPECIFICATION FOR BAY CONTROL AND PROTECTION RELAYS

1.0 SCOPE 1.1 The overall scope of work proposed to be assigned to the successful bidder

according to this specification covers the following aspects. 1.1.1 The design, manufacture, testing at manufacturer’s works, supply and

demonstration of the Bay Control and Protective Relays as detailed in the Bay Control and Protective Relays schedule, F.O.R destination supply thereof, testing and commissioning at site.

1.1.2 Design and manufacture of Bay Control and Protective Relays to meet the

requirements of Protection of power equipments viz.

a) 66KV feeders b) 66/11KV Two winding transformers c) 66KV Bus Coupler

1.1.2.1 Design and fabrication of Bay Control and Protective Relays along with

all necessary accessories like switches, indicating LED etc. to provide self contained and ready to use Bay Control and Protective Relays as per this specification.

1.1.3 Complete testing at manufacturer’s works. 1.1.4 F.O.R. destination supply of completely assembled Bay Control and

Protective Relays. 1.1.5 Testing and commissioning of these Bay Control and Protective Relays

at site. 1.1.6 It is not the intent to specify completely all the details of the design and

construction of Bay Control and Protective Relays. However, the Bay Control and Protective Relays shall conform in all respects to high standards of engineering, design and workmanship as mentioned in clause 4.0 and shall be capable of performing continuous commercial operation up to the supplier’s guarantee. In a manner acceptable to the purchaser, who will interpret the meaning of drawings and specifications, and shall have the power to reject any work of material which, in his judgment is not in accordance therewith. The offered Bay Control and Protective Relays shall be complete with all components necessary for their effective trouble free operation. Such components shall be deemed to whether those are specifically brought out in this specification and/or the commercial order or not.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


2.0 SCHEDULE OF REQUIREMENT 2.1 The consignee details/ Delivery instructions shall be issued by CE (Project)/

ACE (Testing), GETCO, Corporate office, Vadodara, to the successful bidder after successful inspection and testing of all relays & equipments at manufacturer’s works.

2.2 Any special tools jigs and testing equipment if required for the maintenance/testing of the equipment offered shall be quoted as optional items. Unit prices of such equipment shall be quoted.

2.3 Recommended spares

The bidder shall furnish in his offer, a list of recommended spare with unit

rates for Bay Control and Protective Relays that may be required for trouble free operation for a period of 10 years. The purchaser reserves the right of selection of items and quantities of these spares to be ordered.

3.0 STANDARDS:

Unless otherwise specified elsewhere, in this specification, the rating, performance and testing of Bay Control and Protective Relays shall conform to the latest revisions, available at the time of placement of order of all relevant standards. However the supplier shall submit the copies of English version of the relevant standards applicable to the Bay Control and Protective Relays.

4.0 PRINCIPAL TECHNICAL PARAMETERS:

The Bay Control and Protective Relays covered in these specifications shall have the technical requirements listed in Annexure – III.

5.0 GENERAL TECHNICAL REQUIREMENTS: 5.1 SCOPE OF WORK.

5.1.1 Supply of Bay Control and Protective Relays as specified in accompanying schedule `G’ and in this specification together with such auxiliary equipment and materials as required. The bidder shall indicate make, type and designation of each Bay Control and Protective Relays in the bid.

5.1.2 Preparation and furnishing of all the required drawings. 5.1.3 Testing of Bay Control and Protective Relays and associated equipment and

furnishing of test certificates 5.1.4 Preparation and furnishing of commissioning instructions, operation and

maintenance manuals with all operational features/optional features. 5.1.5 The successful tenders have to submit three sets of all types of drawings,

operation and maintenance manuals.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


5.2 GENERAL REQUIREMNT: Design, material selection and workmanship shall be such as to result in neat

appearance inside and outside with no weld, rivets or bolt heads apparent from outside and with all exterior surface true and smooth.

Bay Control and Protective Relays shall have Bay control functionality as

stipulated out in Substation automation specification.

5.2.0 Bay Control and Protective Relays: 5.2.1 All Bay Control and Protective Relays shall confirm to the requirements of IS:

3231/IEC-60255 or other applicable standards. Relays shall be suitable for flush or semi-flush mounting on the front with connections from the rear.

5.2.2 All AC operated Bay Control and Protective Relays shall be suitable for

operation at 50 Hz. AC voltage operated relays shall be suitable for 110V VT secondary and current operated relays for 1 or 5 amp. CT secondary. All DC operated relays and timers shall be designed for the DC voltage specified, and shall operate satisfactorily between 80% and 110% of rated voltage. Voltage operated relays shall have adequate thermal capacity for continuous operation.

5.2.3 The Bay Control and Protective Relays shall be suitable for efficient and

reliable operation of the protection scheme described in the specification. Necessary auxiliary relays and timers required for interlocking schemes for multiplying of contacts suiting contact duties of Bay Control and Protective Relays and monitoring of control supplies and circuits etc. also required for the complete protection schemes described in the specification shall be provided. All Bay Control and Protective Relays shall be provided with at least two pairs of potential free isolated output contacts. Auxiliary relays and timers shall have pairs of contacts as required to complete the scheme contacts shall be silver faced with spring action. Relay case shall have adequate number of terminals for making potential free external connections to the relays coils and contacts, including spare contacts.

5.2.4 All Bay Control and Protective Relays, auxiliary relays and timers except the

lockout relays and interlocking relays specified shall be provided with self-reset type contacts. All protective relay and timers shall be provided with externally hand reset positive action operation indicators with inscription. All Bay Control and Protective Relays which do not have built-in hand-reset operation indicators shall have additional auxiliary relays with operating indicators (flag relays) for this purpose.

5.2.5 Timers shall be of continuous rating. Time delay in terms of ms obtained by the

external capacitor resistor combination is not acceptable. The variable pot type timer is not acceptable.

5.2.6 No control relay which shall trip the power circuit breaker when the relay

is de-energized shall be employed in the circuits.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


5.2.7 Provision shall be made for easy isolation of trip / CT / PT circuits of each

relay for the purpose of on line testing and maintenance. Test Block and Test plugs/test handles, necessary for this, shall be included in contractor’s scope of supply free of cost.

5.2.8 Auxiliary seal-in-units if provided on the Bay Control and Protective Relays

shall preferably be of shunt reinforcement type. If series, relays are used the following shall be strictly ensured.

a) The operating time of the series seal-in-unit shall be sufficiently shorter than

that of the trip relay in series with which it operates to ensure definite operation of the flag indicator of the relay.

b) Seal – in – unit shall obtained adequate current for operation when one or

more relays operate simultaneously. c) Impedance of the seal – in- unit shall be small enough to permit satisfactory

operation of the trip coil on trip relays when the D.C supply voltage is minimum.

5.2.9 All Bay Control and Protective Relays shall be provided with one extra isolated

pair of contacts wired to terminals exclusively for future use. 5.2.10 The setting ranges of the relays offered, if different from the ones

specified shall also be acceptable if they meet the functional requirements.

5.2.11 For numerical Bay Control and Protective Relays, the scope shall include the following.

a) Necessary licensed software and hardware to up/down load the data

to/from the relay from/to the personal computer installed in the sub station. However, the supply of PC is not covered under this clause.

b) The software shall be suitable for operations like switching, retrieval of information or changing of setting groups, retrieve oscillographic fault data from the relay memory and to store fault record data as oscillographic records in standard COMTRADE format. The software shall be suitable to provide oscillographic data into several different graphical representations that can be used to analyze the fault or event captured by the relay It shall also be possible to calculate additional values from the captured signals and displaying analog curve with time base phasor diagram locus diagrams, harmonic graphs etc. Automatic upload of DR files should be possible. The software shall be suitable for creating / modifying logics of the protective relay.

c) The relay shall have communication facility with suitable port for local communication with PC and preferably also for future connectivity to SCADA. In such case the relay shall be capable of supporting IEC 61850-8-1 protocols.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


d) The relay shall be provided with all the software mentioned in the catalogue.

5.2.12 Any alternative/additional protections or relays considered necessary

for providing complete effective and reliable protection shall also be offered separately. The acceptance of this alternative/additional equipment shall lie with the GETCO.

5.2.13 All the bidders have to demonstrate, mentioned fully programmable

numerical relays, as may be demanded by the GETCO, free of cost within 15 days after issue of intimation for verifying its functions, features, accuracies etc. the testing shall be performed by fully 3 phase automatic testing set. The relays, which don’t meet requirements, don’t function as per GTP will not be accepted.

5.2.14 The bidder shall include in his bid a list of installations where the Bay Control

and Protective Relays quoted have been in satisfactory operation. 5.2.15 All relays and their drawings shall have phase indications as R-Red, Y- Yellow, B-Blue. 6.0 TYPE TESTS: 6.0.1 The bidder shall submit the complete type test reports as stated hereunder for

the offered item along with the offer otherwise the offer shall be liable to be rejected. These tests must have been conducted in the NABL approved laboratory as per IEC 60255, IEC 60068, IEC 61000, IEC 60529, IEC 61010-1 & IEC 61850 within last 5 years prior to date of validation of the offer

6.0.3 The reports for the type tests mentioned in Annexure-II shall be submitted by

the bidder for the Bay Control and Protective Relays. However, the type test report not mentioned in Annexure-II, but relevant to the offered protective relay as on date shall be attached with a copy of English version of that standard.

6.0.1 The purchaser reserves the right to demand repetition of some or all the

type test in the presence of the purchaser’s representative. For this purpose the bidder may quote unit rates for carrying out each type test.

a. Performance tests:

i. Accuracy requirements ii. Limits of operating range of auxiliary energizing inputs and auxiliary

Voltage dependence. iii. Limits of frequency range and frequency dependence iv. Rated burden v. Mechanical Endurance test vi. Characteristic and Functional test

b. Thermal requirements: i. Maximum allowable temperature

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


ii. Limits of short time thermal withstand value of input energizing quantities.

iii. Limiting dynamic value

c. Insulation Tests: i. Dielectric Tests ii. Impulse Voltage withstand Test

iii. Insulation resistance measurement

d. Influencing Quantities i Permissible ripples

ii. Interruption of input voltage

e. Electromagnetic Compatibility Test: i. 1 MHZ burst disturbance test

ii. Electrostatic Discharge Test iii. Radiated Electromagnetic Field Disturbance Test iv. Electrical Fast transient Disturbance Test v. Conducted Disturbances Tests induced by Radio Frequency Field vi. Magnetic Field Test vii. Emission (Conducted and Radiated) Test. viii. Surge Immunity Test

f. Contact performance Test i. Contact making/Breaking capacity test ii. Continuous capacity test g. Environmental tests:

i. Dry Cold Test ii. Dry Heat test iii. Storage temperature test iv. Damp heat Cyclic test h. Mechanical Tests:

i. Vibration response & Vibration endurance test ii. Bump test iii. Shock response test iv. Seismic test

i. Enclosure Test:

i. Degree of Protection test – IP51

j. Safety Test: i. Single fault condition assessment

ii. Earth bonding impedance test iii. Mechanical resistance to shock and impact iv. Protection against electrical shock v. Protection against the spread of fire

k. IEC 61850 Compatibility tests

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


6.1 Acceptance and routine tests.

All acceptance and routine test as stipulated in the relevant standards shall be carried out by the supplier in presence of Purchaser’s representative without any extra cost.

Immediately after finalization of the programme of type / acceptance/ routine / testing the supplier shall give two weeks advance intimation to the purchaser to enable him to depute his representative for witnessing the tests.

6.2 QUALITY ASSURANCE PLAN: 6.2.1 The bidder shall invariably furnish along with his offer the quality àssurance

plan adopted is him/his sub-supplies in the process of manufacturing all major equipment/component.

6.2.2 Precaution taken for ensuring usage of quality raw materials and sub-

components shall be stated in the quality assurance plan. 6.2.3 The bidder should specifically express their consent to accept additions,

revisions to their quality assurance plan to meet the purchaser’s requirements if needed. The final quality assurance plan to be adopted, with mutual consent, shall be decided after discussion with successful bidder.

6.2.4 The offers are likely to be rejected if the quality assurance plan & details as per clause No. 6.2.1 to 6.2.3 are not submitted along with the offer.

7.0 PERFORMANCE GUARANTEE

All Bay Control and Protective Relays supplied against this specification shall be guaranteed for a period of 24 months from the date of commissioning.

8.0 DOCUMENTATION:

The bidder shall furnish as a part of their offer, complete set of technical literature/manuals in original and typical schematic drawings in respect of each Bay Control and Protective Relays offered by them.

8.0 (A) Demonstration

During technical scrutiny of the bid purchaser may ask to give demonstration of the offered Bay Control and Protective Relays at purchaser’s site. The bidder shall demonstrate the Bay Control and Protective Relays within one week of intimation from purchaser.

9.0 PACKING AND TRANSPORT 9.1. All Bay Control and Protective Relays/material shall be suitably packed for

transport, carriage at site and outdoor storage during transit. The contractor shall be responsible for any damage to the Bay Control and Protective Relays

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


during transit due to improper and inadequate packing. The cases containing easily damageable material shall be very carefully packed and marked with appropriate caution symbols i.e. `FRAGILE’ `HANDLE WITH CARE’, ÙSE NO HOOK’ etc. The contents of each package shall bear marking that can be readily identified from the package list and packing shall provide complete protection from moisture, termites and mechanical shocks etc.

9.2 Wherever necessary proper arrangement for attaching slings for lifting shall be

provided and all packages clearly marked with gross weight, signs showing ÙP’ and ‘DOWN’ sides of boxes, contents of each package, order no. and date, name of the plant/SS/ of which the material in the package forms part of and any handling and unpacking instructions considered necessary. Any material found short inside the intact packing cases shall be supplied by the manufacturer/supplier without any extra cost.

9.3 Bidder shall ascertain, prior to shipment, from concerned authorities, the

transport limitations like weight and maximum allowable package size for transportation. Fragile material such as Instruments and other glass material shall be carefully covered with shock absorbing protective materials, such as thermocol, silica gel or equivalent moisture absorbent material in small cotton bags shall be placed inside the packing wherever necessary

9.4 Each consignment shall be accompanied by a detailed packing list containing

the following information.

a) Purchase order reference.

b) Name of consignee

c) Details of consignment

d) Destination

e) Total weight of consignment

f) Handling and unpacking instructions.

g) Bill of materials indicating contents of each package

h) Sign showing upper/lower side of the crate.

10.0 SCHEDULES: 10.1. The bidder shall fill in the following schedules which form part of the tender

specification and offer. If the schedules are not submitted duly filled in with the offer, the offer is likely to be rejected.

Schedule – B Guaranteed Technical particulars Schedule – G List of the offered Bay Control and

Protective Relays.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


10.4 Unless other wise brought out separately by the bidder in the schedules of deviations the protective relay offered shall be deemed to conform to the specification, as listed in this tender, scrupulously.

10.3 For any deviation from the specification which is not specifically brought out in

the schedules shall be supported by authentic documents, standards and clarifications, otherwise the offer may be liable for rejection. Any deviation from the specification shall be high lighted giving reasons and unit prices.

10.4 If the Protective Relay is being designed and manufactured in collaboration

with other manufacturer, the following information shall be submitted by the bidder along with his offer.

a) Copy of authorization between the bidder and manufacturer. b) List of orders for offered Bay Control and Protective Relays, executed/

being executed by the supplier.

11 INFORMATION TO BE FILLED IN INVARIABLY BY THE BIDDER:

For ready reference of the purchaser, the items of information required to be invariably furnished by him in his offer, are listed below:

1. Four copies of the authentic English translation of each of the

standards to which the offered Bay Control and Protective Relays conforms.

2. Schedule - `B’ and `G ‘. 3. Documents and drawing listed in Clause no. 8.0

12 UNIT RATE FOR OTHER ACCESSORIES. 12.1 The bidder has to submit along with their offer unit rate of all the type of

accessories required for trouble free operation of the protective relay for minimum 10 years. The offers without above unit rate are likely to be rejected.

12.2 The above unit rate shall be kept valid till the expiry of guarantee period. 13.0 GUARANTEE FOR MAINTENANCE SPARES AND SERVICES:

The bidder shall guarantee for supplying maintenance spares and services as

well as repairing of protective relay for a period of the life expectancy of 25 years.

14.0 GENERAL: a. The successful bidder has to provide reproducible tracings/ soft copy for all the

drawings as a part of supply contract to the CE (Projects) GETCO, HO, VADODARA for documentation.

b. The successful Bidder has to provide instruction manual, O & M manual,

Commissioning manual, all drawings, literature etc. for all relays and devices, detailed circuit diagrams with trouble shooting protocols to all

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


consignee destinations as well as to the ACE (Testing), GETCO, and the CE(Projects) GETCO, HO, VADODARA.

c. The successful bidder has to do testing/commissioning of protection relays

to be supplied of each type, by deputing his Service Engineer free of cost. d. The successful bidder has to depute his service engineer along with necessary

tools/kits/instruments/testing accessories required for testing, commissioning of relays and devices.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


Annexure-I

Bay wise Protection Requirements for 66KV System Panel

Panel Type Main Protection Back Up

Protection O/V

Protection DC Sup

Synch Socket

Remark

Feeder C&R Panel 110 V DC

Dir O/C & E/F, With DR (Protocol – 61850)

X X X X

66/11KV Transformer HV Side C&R Panel 110 V DC

Differential, With DR (Protocol – 61850)

Non-Dir O/C, With DR

(Protocol – 61850) X X X

66/11KV Transformer LV Side C&R Panel 110 V DC

X

Non Dir O/C & E/F, Without DR & Time

Stamping, LCD/ LED Display

X X X

B/C C&R Panel 110 V DC

Non-Dir O/C, With DR (Protocol – 61850)

X X X X

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


ANNEXURE: II

LIST OF STANDARDS - GENERAL

Sr No.

Standard no.

Title

1. IS-3231 Electrical relays for power system protection. 2. IEC-255

Part 1 to 3 Electrical relays for power system protection.

3. BS – 142 Electrical relays for power system protection

4. IS – 1248 IS – 2419

Indicating instruments.

5. BS – 89 Indicating instruments 6. IS – 2705 Current transformers 7. IS – 3156 Voltage transformers 8 IS – 4237 General requirements for switches and

control gear for voltages not exceeding 1 kV. 9. IS – 375 Marking and arrangements for switch gear,

bus bars, main connections and auxiliary wiring.

10. BS – 152 Relay coding, auxiliary wiring and panel and wiring.

11. IS – 8686 Static Bay Control and Protective Relays 12. IS – 2147 Degree of protection for cubicles 13. IEC-297

Part 1-3 Dimensions of mechanical structures of the 482.6mm (19)” series.

14. IS – 6875 Control switches (LV Switching devices for control and auxiliary circuits)

15. IS – 5 Colour for ready mixed paints and channels. 16. IS – 1554

Part-I, 1988 PVC insulated cables up to and including 1000 volts.

17. IS – 3842 Part- II to IV

Application guide for protection

18. IS – 9224 Part- II

HRC Cartridge fuse links.

19. IS – 6005 Code of practice for phosphating iron and steel

20. IS-5578 Guide for making of insulated conductors. 21. IS – 11353 Guide for uniform system of marking and

identification of conductors and apparatus terminals.

22. IEC-686-1 Transducers 23. IS – 2206 Fuses

24. IS – 9000 Dry heat test 25. IEC – 801-4 Electrical heat transient bursts. 26. IS 694 PVC Insulated cable for working voltage up

to & including 1100 volt.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


List Of IEC Standards – Protection Relays

Sr.No. Standard no. Title Characteristic, Performance, Accuracy, Burden, Mechanical endurance test 1. IEC-60255-6 Thermal requirements

Mechanical requirements Limiting dynamic value Accuracy requirements Rated Burden

2. IEC-60255-11 Interruption to and alternating component in DC aux. Energizing quantity

3. IEC-60255-3, IEC-60255-12, IEC-60255-13

Relay characteristic & Performance test

4. IEC-60255-23 Contact Performance test

Electromagnetic Compatibility type test: 1. IEC-60255-22-1, Class-III, 1MHz burst immunity test

2. IEC-60255-22-2, Class-III IEC-61000-4-2, Class-III

Electrostatic discharge test Direct application Indirect application

3. IEC-60255-22-4, Class-A Fast transient / burst immunity test

4. IEC-, 60255-22-5 Surge immunity test 5. IEC-60255-22-7, Class-A Power frequency immunity test 6. IEC-61000-4-8, Class-V Power frequency magnetic field

test 7. IEC- 60255-22-3 Radiated electromagnetic field

immunity 9. IEEE/ANSI/C37.90.2 Radiated electromagnetic field

disturbance 10. IEC- 60255-22-3 Immunity to conducted

disturbances induced by radio frequency fields test

11. IEC- 60255-25 Electromagnetic emission tests - Conducted emission test - Radiated emission test

Insulation tests: 1. IEC- 60255-5 Dielectric test

Impulse voltage test Insulation resistance

Environmental tests: 1. IEC-60068-2-1 Cold test

Storage test 2. IEC-60068-2-2 Dry heat test 3. IEC-60068-2-3 Damp heat test, steady state

4. IEC-60068-2-30 Damp heat test, cyclic 5. IEC-60068-2-48 Storage temperature test CE compliance 1. IEC- 60255-26 Electromagnetic compatibility

requirements

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Mechanical tests 1. IEC- 60255-21-1 Vibration 2. IEC- 60255-21-2 Shock and bump 3. IEC- 60255-21-3 Seismic

Degree of protection test 1. IEC 60529 Degree of Protection Provided by

enclosure test Safety test 1. IEC 61010-1 Single fault condition assessment

Earth bonding impedance test Mechanical resistance to shock and impact - Rigidity test - Impact hammer test

Protection against electrical shock Protection against the spread of fire

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


ANNEXURE: III

PRINCIPAL TECHNICAL PARAMETERS OF CONTROL & PROTECTION RELAYS

SR. NO.

Item Specification

1 DIRECTIONALO/C AND E/F PROTECTION RELAY

(A) Features:

a) Shall be Numerical type. b) Shall have 3 over current and 1 Earth Fault element. c) TRUE RMS Measurement. d) Have selectable and front panel programmable normal

inverse, very inverse, extremely inverse & long inverse IEC/ANSI Characteristic.

e) Selectable CT Secondary. I.e. 1A / 5A f) High set over current with selectable time delay. g) High set Earth fault with selectable time delay h) Have adjustable characteristic angle, lead/ lag, for

Directional over current/ Earth Fault respectively. i) Suitable to decide directionality, internally, through zero

sequence quantity. j) Shall have in built Breaker Failure Protection. k) Shall have facility to supervise both trip circuits of a

Circuit Breaker in its ON as well as OFF condition. l) Shall have bay control functionality for all bay

equipments via interlock logics and GOOSE messages. m) Include hand reset Flag/LED indicators for fault. n) Readable Human Machine Interface with LCD display. o) Should be able to store at least last 3 fault records viz.

Fault current, Faulty Phase etc with time stamp. p) Shall have Disturbance Recording facility for minimum

3 sec for each fault. q) Shall have continuous self monitoring and

diagnostic features. r) Relay offered shall be communicable type.

s) Be supplied along with all suitable Original Customized licensed software & communication cable for local and remote communications, analysis of fault etc

(B) Technical Parameters: 1. Analogue input:

Rated Current : 1A / 5A (site selectable), 50 Hz ±2.5 Hz

Power consumption: <0.05VA/0.3 VA for 1/5 Amp Over load capability: 4xIn continuous 100xIn 1 Sec. 25xIn 3 Sec. 250xIn Dynamic

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


Rated Voltage: 110/63.5V, 50 Hz ±2.5 Hz Power consumption: <0.3 VA per phase Over load capability: 2xVn continuous

2. Auxiliary Supply: 110/220 V DC ±15 %

Power consumption: < 15W Ripple (peak to peak): < 12%

(C) Relay settings: 1. Over Current: 50% - 200% (In steps of 5%) 2. Earth Fault: 5% - 80% (In steps of 5%) 3. High set O/C: 0.5 – 15 times In or more. 4. High set E/F: 0.5 – 12 times In or more. 5. Time multiplier for IDMT: 0.05 – 1.0 (In steps of 0.025) (Independent for O/C & E/F) 6. Time delay for high set element : 0.02 to 2 sec (in steps of 0.01 sec) 7. Pick up: Within 1.1 times of set current value. 8. Reset current: 95% to 90% of pick-up current. 9. Operating Time: As per selectable characteristic. For Inst. Element < 40 ms for 2xIn. (D) Other Features: 1. Binary inputs: Min 24 nos. and suitable for Station Aux DC. 2. Outputs:

• Trip contacts: Minimum 2 N/O contacts with - Continuous carry 5 A - Make & Carry for 0.5 s 30 A - Make & Carry for 3.0 s 15 A

• Binary Output: Minimum 6 Nos. and suitable for Station Aux. DC (Programmable at site)

• Control Output : Minimum 12

3. Communication:

• Front RS232,

• Rear Fiber optic

• IEC 61850 protocol 4. Housing

• Flush Mounting

• Screw Terminals (‘O’ Lug for CT Connection)

• Degree of Protection IP51

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


5. Temperature and humidity

(a) Ambient temp -10 to 55 o C (b) Relative humidity 10% to 90% Non Condensing (c) Operate range 0-95% (d) Storage temp. -40 to 70 o C

2 NON- DIRECTIONALO/C AND E/F PROTECTION RELAY

(A) Features:

a) Shall be Numerical type. b) Shall have 3 over current and 1 Earth Fault element. c) TRUE RMS Measurement. d) Have selectable and front panel programmable normal

inverse, very inverse, extremely inverse & long inverse IEC/ANSI Characteristic.

e) Selectable CT Secondary. I.e. 1A / 5A f) High set over current with selectable time delay. g) High set Earth fault with selectable time delay h) Shall have in built Breaker Failure Protection. i) Shall have facility to supervise both trip circuits of a

Circuit Breaker in its ON as well as OFF condition. j) Shall have bay control functionality for all bay

equipments via interlock logics and GOOSE messages. k) Include hand reset Flag/LED indicators for fault. l) Readable Human Machine Interface with LCD display. m) Should be able to store at least last 3 fault records viz.

Fault current, Faulty Phase etc with time stamp. n) Shall have Disturbance Recording facility for minimum

3 sec for each fault. o) Shall have continuous self monitoring and diagnostic

features. p) Relay offered shall be communicable type.

q) Be supplied along with all suitable Original Customized licensed software & communication cable for local and remote communications, analysis of fault etc

(B) Technical Parameters: 1. Analogue input:


Power consumption: <0.05VA/0.3 VA for 1/5 Amp Over load capability: 4xIn continuous 100xIn 1 Sec. 25xIn 3 Sec. 250xIn Dynamic

2. Auxiliary Supply: 110/220 V DC ±15 % Power consumption: < 15W Ripple (peak to peak): < 12%

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


(C) Relay settings: 1. Over Current: 50% - 200% (In steps of 5%) 2. Earth Fault: 5% - 80% (In steps of 5%) 3. High set O/C: 0.5 – 15 times In or more. 4. High set E/F: 0.5 – 12 times In or more. 5. Time multiplier for IDMT: 0.05 – 1.0 (In steps of 0.025) (Independent for O/C & E/F) 6. Time delay for high set element : 0.02 to 2 sec (in steps of 0.01 sec) 7. Pick up: Within 1.1 times of set current value. 8. Reset current: 95% to 90% of pick-up current. 9. Operating Time: As per selectable characteristic. For Inst. Element < 40 ms for 2xIn. (D) Other Features: 1. Binary inputs: Min 12 nos. and suitable for Station Aux DC. 2. Outputs:

• Output contacts: Minimum 2 N/O contacts with - Continuous carry 5 A - Make & Carry for 0.5 s 30 A - Make & Carry for 3.0 s 15 A


• Control output : Minimum 6 3. Communication:

• Front RS232



• Flush Mounting



5. Temperature and humidity

(a) Ambient temp -10 to 55 o C (b) Relative humidity 10% to 90% Non Condensing (c) Operate range 0-95% (d) Storage temp. -40 to 70 o C

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


3 DIFFERENTIAL RELAY WITH HIGHSET

A) Differential % BIASED protection

i). Be high speed with an operating time of less than 30 ms at 5 times the rated current.

ii).Shall be numerical type. iii).True RMS Measurement. iv). Shall have continuous self monitoring and diagnostic

features. v). Be suitable for three phase two winding transformer. vi). Be stable on heavy through faults. vii).Be immune to magnetizing inrush current. viii).Have features to provide stability under over excited

conditions and have 2nd and 5th harmonic restraint features.5th harmonic bypass is not acceptable.

ix). Be triple pole type with faulty phase identification/ indication.

x). Have internal features in the relay to take care of the angle and ratio correction.

xi). Shall have the following functions. i. Differential Protection ii. LBB

xii).Provide sufficient number of potential free contacts to cater the needs of Control functions, connection to alarm annunciation. Data acquisition and optional trip facility to be connected by purchaser where needed.

xiii).Shall have bay control functionality for all bay equipments via interlock logics and GOOSE messages.

xiv). Be supplied along with all suitable Original Customized licensed software & communication cable for local and remote communications, analysis of fault etc.

xv). Have a local user interface (MMI) comprising of a 2-3 line alphanumeric LCD display and a soft touch key pad to access the settings, events and records in the relay.

xvi). Have a front RS 232 communication ports for use with a PC locally for local access to settings, events and recorders.

xvii).Have rear communication port on fiber optic wires for remote communication based facilities supplied under IEC – 61850 interface.

xviii).Have a disturbance recording feature to record graphic form of instantaneous values of current in all three windings in six analog channels during faults and disturbances for the pre fault and post fault period. The disturbance recorder shall have the facility to record the following external digital channel signals apart from the digital signals pertaining to differential relays.

a. HV Each Breaker pole status b. LV Each Breaker pole status

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


c. Buchholz / OLTC Buchholz alarm / trip d. WTI/OTI/PRV alarm /trip of transformer. e. Trip relay operated

Necessary hardware and software for down loading the data captured by disturbance recorder to the personal computer available in the sub station shall be included in the scope.

B) Breaker failure feature i). Shall provide back up protection when primary breaker

fails to operate by isolating all breakers connected to faulty breaker bus.

ii). Shall initiate tripping on persisting breaker lock out condition and simultaneous incidence of fault.

iii). Be high speed with typical operating time of less than 30 ms

Technical Parameters: 1. Analogue input:


Power consumption: <0.05VA/0.3 VA for 1/5 Amp Over load capability: 4xIn continuous 100xIn 1 Sec. 25xIn 3 Sec. 250xIn Dynamic Rated Voltage: 110/63.5V, 50 Hz ±2.5 Hz Power consumption: <0.3 VA per phase Over load capability: 2xVn continuous

2. Auxiliary Supply: 110/220 V DC ±15 % Power consumption: < 15W Ripple (peak to peak): < 12%

Differential protection settings: 1. Diff. Current: 10% - 50% (In steps of 5%) 2. Diff. High Current 2 – 10 times In (In steps of 1) 3. Bias Diff Current 10% - 50% (In steps of 5%) 4. Bias slope limit 10 times 5. 2nd Harmonic Restraint ratio 10 to 80% 6. 5th Harmonic Restraint ratio 10 to 80% Breaker failure protection settings 7. current range 0.05 to 1 A in steps of 0.05 In 8. Time Delay 0 to 800 ms In steps of 10 ms

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


9. Breaker status monitoring Binary I/P for each pole Other Features: 10. Binary inputs: Min 32 nos. and suitable For Station Aux DC. 11. Outputs:

• Trip contacts: Minimum 2 N/O contacts with - Continuous carry 5 A - Make & Carry for 0.5 s 30 A - Make & Carry for 3.0 s 15 A


• Control Output : Minimum 12 12. Communication:

• Front RS232



• Flush Mounting



14. Temperature and humidity (a) Ambient temp -10 to 55 o C (b) Relative humidity 10% to 90% Non Condensing (c) Operate range 0-95% (d) Storage temp. -40 to 70 o C

4 UNBALANCE

CURRENT RELAY

The relay shall be suitable for rated current of 1 amp & have suitable D.C/D.C converter suitable for 110 / 220 V D.C. (Preferably 88V TO 300V D.C.). DC voltage range of – 15% to + 25% harmonic level is max, .2% at rated value. It shall

i. be Single pole OR two pole type (in case of controlling 2 Banks)

ii. be of numerical type. iii. Shall have continuous self monitoring and diagnostic

features. iv. be two Stage relay so that alarm & tripping can be set at

different values of current v. have current setting of 10- 50 % of rated current. vi. have alarm and trip output contacts. vii. have a local user interface (MMI) comprising of a 2-3 line

alphanumeric LCD display and a soft touch key pad to access the settings, events and records in the relay.

viii. include hand reset flag/LED indicator. ix. be high speed with typical operating time of less than 25

ms. x. be provided with sufficient number of potential free

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


contacts to cater the needs of alarm annunciation, Data acquisition, control commands and trip facility.

xi. store minimum 3 Nos of fault data. xii. have front RS232 and rear F.O. Port. xiii. have IEC 61850 communication protocol xiv. have bay control functionality for all bay equipments via

interlock logics and GOOSE messages.

xv. Shall be supplied along with all suitable Original Customized licensed software & communication cable for local and remote communications, analysis of fault etc.

xvi. be suitable for flush mounting with screw terminals. xvii. have Degree of protection class IP51.

5 UNDER FREQUENCY RELAY

(A) Features:

i. Shall be a numerical relay. ii. Shall have four under frequency stages. iii. Shall have two df/dt stages. iv. Each frequency stage shall have timer for definite time

delay setting. v. Each df/dt stage shall operate on frequency-rate-of-

change (df/dt) function + Basic Frequency setting. vi. Shall have adjustable under voltage blocking setting. vii. Shall have Readable Human Machine Interface with LCD

display. viii. Each stage shall have external blocking input contact. ix. Each stage shall have two output contacts viz. one for trip

and one for alarm. x. Output configuration for each stage shall be available for

any combination viz. Plain u/f, Time Delay and df/dt. xi. The relay shall have adjustable pick up. xii. Shall have a flexible configuration of blocking inputs,

protection stages and output relays. xiii. Shall have front RS 232 and rear FO port.

xiv. Shall be supplied along with all suitable Original Customized licensed software & communication cable for local and remote communications, analysis of fault etc.

xv. Shall have continuous self monitoring and diagnostic features.

xvi. Shall have IEC 61850 communication protocol. xvii. Shall have Disturbance as well as event recording facility. xviii. Shall have indication for operation of each stage and also

relay healthiness supervision. xix. have bay control functionality for all bay equipments via

interlock logics and GOOSE messages.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


(B) Technical Parameters: (1) Inputs:

i. Rated Voltage: 110 V PT, ±10% ii. Rated Burden: < 0.5 VA iii. Rated Frequency: 50 Hz iv. Continuous Thermal

Overload Capacity: 200 V v. Overload for ≤ 10 s: 230 V

(2) Auxiliary supply: i. Operative Voltage: 80 – 265 V DC ii. Burdens: ≤ 20 w

(3) No. of Stages: i. Total 4 Stages. ii. Each stage shall have individual Plain U/f, Time Delay

and df/dt setting. iii. Final output shall be combination (and/ or) of any of the

three i.e. Plain U/f, Time Delay and df/dt. (4) Plain Under Frequency:

i. f < 40 – 60 Hz ii. Resolution: 0.05 Hz iii. Accuracy: ± 0.03 Hz iv. Operating Time: 0.1 s v. Minimum Measuring Volt: 0.25 x Rated V

(5)Timer: i. Definite Time Delay: 0.1 – 10.0 sec ii. Time Accuracy: ± 1 %

(6) Rate of Change of Frequency: i. df/dt (Negative): 0.2 – 5.0 Hz/s ii. In step of: 0.1 Hz/s iii. Accuracy: ± 0.05 Hz/s iv. Sample time: 4 – 10 cycles

(7) Under Voltage Blocking: i. V < 30 – 90 V ii. Accuracy: ± 5 %

(8) Output Trip Contact: i. Rated Voltage: 250 V AC/DC ii. Continuous Current: 5 A iii. Current Cap. for 0.5 s: 30 A iv. Breaking Capacity: 220 V DC 1 A

110 V DC 3 A 48 V DC 5 A

(9) External Inputs: i. Control Voltage: 20 – 250 V DC ii. Current consumption: < 10 mA

(10) Communication: i. Front RS232 ii. Rear Fiber Optic iii. Protocol IEC 61850

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


(11) LED Indications: i. Relay ready for operation 1 ii. U/f operation (1 for each stage) 4 iii. Relay Faulty (self supervision) 1 iv. Relay blocked 1

(12) Other parameters: i. Relay reset push button. ii. LCD display

(13) Temperature and humidity . Ambient temp -10 to 55 o C . Relative humidity 10% to 90%

Non Condensing . Operate range 0-95% . Storage temp. -40 to 70 o C

(14) Housing

• Flush Mounting



GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


SCHEDULE – B

GUARANTEED TECHNICAL PARTICULARS

(TO BE FILLED IN BY THE BIDDER AND FURNISH WITH TECHNICAL BID) The GTP is to be filled up in this format and, in the page of Tender Specification only, to be submitted in duplicate along with the offer. This is intended for speedy comparison of various bidders GTP. The Bidder shall fill in the particulars against appropriate items in respect of each rating and type of Bay Control and Protective Relays offered in the broad categories listed below:

PARAMETERS Bidders comment

A DIRECTIONAL OVERCURRENT AND EARTH FAULT RELAY

i Make

ii Type

iii Whether comply to Principle Technical Parameters as per Annexure III, Section-II

iv Whether Numerical and have true RMS measurement.

v Display type for HMI

vi Give the details of self monitoring (Hardware & Software) and indication/ alarm facility on internal relay failure

vii • Current Input (CT Secondary) with thermal rating and burden

• Whether selectable from front panel at site

• Voltage Input (VT Secondary) with thermal rating and burden

viii Auxiliary Supply and its burden with permissible tolerance & Ripple

ix No. of poles

x Current setting range for Over Current element

xi Current setting range for Earth Fault element

xii • Type of Characteristics available


xiii • MTA setting for Phase fault

• Whether site adjustable

xiv • MTA setting for Earth Fault

• Whether site adjustable

xv Criterion for decision of directionality

xvi High set current setting range for Over Current

xvii High set current setting range for Earth Fault

xviii Time multiplier

xix Reset Ratio

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


xx Built-in Breaker Failure Protection 1. Current Setting range 2. Timer range 3. No. of poles 4. Operating time 5. Resetting time 6. No. of O/P Contacts available for this feature.

xxii • No. of fault event can be stored

• Type of data stored on fault

xxiii Maximum duration for DR on each fault

xxvi No. of Binary Inputs

xxvii No. of outputs. (Trip/ Signaling/Control)

xxviii Contact rating i) Make and carry continuously ii) Make and carry for 0.5 sec. iii) Break resistive load and inductive load with 40m

sec. time constant iv) Whether self reset or hand reset

xxix Trip circuit supervision feature in both ON and OFF condition for both trip coils.

xxx Ref. no. of descriptive leaflet enclosed

xxxi Temp. rise over ambient temperature

xxxii One minute power frequency withstand volt.

xxxiii Degree of Protection

xxxiv Mounting and dimensional details.

xxxv Overall dimensions

xxxvi Weight

xxxvii Temperature and humidity (a) Ambient temp (b) Relative humidity Non Condensing (c) Operate range (d) Storage temp.

xxxviii

Any other information

xxxix Bay control functionality as per Substation automation specification.

B NON-DIRECTIONAL OVERCURRENT AND EARTH FAULT RELAY

i Make

ii Type





vii • Current Input (CT Secondary) with thermal

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


rating and burden

• Whether selectable from front panel at site viii Auxiliary Supply and its burden with permissible

tolerance & Ripple

ix No. of poles

x Current setting range for Over Current element

xi Current setting range for Earth Fault element

xii • Type of Characteristics available


xiii High set current setting range for Over Current

xiv High set current setting range for Earth Fault

xv Time multiplier

xvi Reset Ratio

xvii Built-in Breaker Failure Protection 1. Current Setting range 2. Timer range 3. No. of poles 4. Operating time 5. Resetting time 6. No. of O/P Contacts available for this feature.

xviii • No. of fault event can be stored


xix Maximum duration for DR on each fault

xx No. of Binary Inputs

xxi No. of outputs. (Trip/ Signaling/Control)

xxii Contact rating i) Make and carry continuously ii) Make and carry for 0.5 sec. iii) Break resistive load and inductive load with 40m

sec. time constant iv) Whether self reset or hand reset

xxiii Trip circuit supervision feature in both ON and OFF condition for both trip coils.

xxiv Ref. no. of descriptive leaflet enclosed

xxv Temp. rise over ambient temperature

xxvi One minute power frequency withstand volt.

xxvii Degree of Protection

xxviii Mounting and dimensional details.

xxix Overall dimensions

xxx Weight

xxxi Temperature and humidity (a) Ambient temp (b) Relative humidity Non Condensing (c) Operate range (d) Storage temp.

xxxii Any other information

xxxiii Bay control functionality as per Substation automation specification.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


C DIFFERENTIAL RELAYS

i Make

ii Type and designation


iv Whether Numerical measurement.

v Whether continuous self monitoring and diagnostic feature is available

vi • Current Input (CT Secondary) with thermal rating and burden


Auxiliary Supply and its burden with permissible tolerance & Ripple

vii Operating principle

viii Number of poles

ix Max. V.A burden i) Operating circuit ii) Restraining circuit

x Min. Operating current

xi Is the slope setting variable.

xii Setting ranges available Differential Protection Diff. Current Diff. High Current Bias Diff Current Bias slope limit 2nd Harmonic Restraint ratio 5th Harmonic Restraint ratio

Breaker failure protection Current range Time Delay Breaker status monitoring

xiii Power consumption i) Operating circuit ii) Restraining circuit

xv Whether internal phase angle and ratio correction is available.

xvi Operating time i) At 2 x In ii) At 10 x In iii) Time take to energize the trip coil of the break for initiation of fault current as in (I and II) above.

xvii Resetting ratio

xix Three pole instantaneous high set units provided.

xxi Nos of Binary inputs

xxii Nos. of Output contacts (Trip/Signaling/Control) and their ratings. i) Make and carry continuously ii) Make and carry for 0.5 sec.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


iii) Make and carry for 3.0 sec. iv) Break resistive load and inductive load with

40m sec. time constant v) Whether self reset or hand reset

xxiii Communication a. Type of port (Front) b. Type of port (Rear) c. Comm. Protocol

xxiv Disturbance recording a. Nos of analogue channel b. Nos of Digital channel c. Duration (Pre & post fault) d. Nos of Disturbance

xv Housing a. Mounting b. Terminals c. Degree of Protection

xvi Temperature and humidity (a) Ambient temp (b) Relative humidity Non Condensing (c) Operate range (d) Storage temp.

xvii Bay control functionality as per Substation automation specification.

D UNBALANCE CURRENT RELAY

i Make

ii Type

iii Whether comply to Principle Technical Parameters as per Annexure III




vii • Current Input (CT Secondary)


viii Auxiliary Supply and its burden with permissible tolerance.

ix No. of poles

x Current setting range for Unbalance Current alarm for current input 1 & 2

xi Current setting range for Unbalance Current trip for current input 1 & 2

xii Burden at CT inputs

xiii • No. of fault event can be stored


xiv No. of Binary Inputs

xv No. of outputs. (Trip/ Signaling)

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


xvi Contact rating

• Make and carry continuously

• Make and carry for 0.5 sec.

• Break resistive load and inductive load with 40m sec. time constant

• Nos of contact (trip/signaling/control)

• Whether self reset or hand reset

xvii Communication

• Type of port (Front)

• Type of port (Rear)

• Comm. Protocol

xviii Ref. no. of descriptive leaflet enclosed

xix Temp. rise over ambient temperature

xx One minute power frequency withstand volt.

xxi Degree of Protection

xxii Mounting and dimensional details.

xxiii Overall dimensions

xxiv Weight

xxv Bay control functionality as per Substation automation specification

D UNDER FREQUENCY RELAY

i Make

ii Type


iv Whether Numerical measurement.

v Whether continuous self monitoring and diagnostic feature is available

vi Analogue Input

• Rated Voltage

• Rated Burden

• Rated Frequency

• Continuous Thermal Overload Capacity

vii Auxiliary supply

• Operative Voltage

• Burdens

viii • No. of Stages

• Whether each stage shall have individual Plain U/f, Time Delay and df/dt setting

• Capability to exhibit final output with any combination (and/ or) of any of the three i.e. Plain U/f, Time Delay and df/dt

ix Settings for Plain Under Frequency stage

• f <

• Resolution

• Accuracy

• Operating Time

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


• Minimum Measuring Volt

x Timer setting

• Definite Time Delay

• Time Accuracy

xi Setting for Rate of Change of Frequency stage:

• df/dt (Negative)

• In step of

• Accuracy

• Sample time:

xii Under Voltage Blocking

• V <

• Accuracy

xiii Output Trip Contact

• Rated Voltage

• Continuous Current

• Current Cap. for 0.5 s

• Breaking Capacity

• Nos of contact (trip/signal/command)

xiv External Inputs:

• Control Voltage

• Current consumption

xv Communication

• Type of port (Front)

• Type of port (Rear)

• Comm. Protocol

xvi LED Indications

• Relay ready for operation

• U/f operation (1 for each stage)

• Relay Faulty (self supervision)

• Relay blocked

xvii Availability of relay reset push button

xviii LCD display

xix Mounting

xx Temperature and humidity

• Ambient temp

• Relative humidity Non Condensing

• Operate range

• Storage temp

xxi Housing

• Mounting

• Terminals

• Degree of Protection

D GENERAL

i Whether agreed for Testing & Commissioning of the relay at site.

ii Whether agreed for 24 Months Performance Guarantee.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


iii Whether agreed for Demonstration of the offered relay to be used, if asked before the opening of the price bid.

iv Whether agreed for Training if asked by the purchaser.

v Whether Schedule B and G dully sealed and sighed attached.

vi TOOLS Whether Optional tools required for testing/ commissioning/ maintenance is listed and price for the same is given

vii SPARES: Whether list of recommended spares for normal maintenance for period of 5 years furnished.

GETCO / E / TS- CRP 3605 / R1 Dt. 20.06.2009


SCHEDULE: G LIST OF ACCESSORIES FOR RELAYS

(TO BE FILLED IN BY BIDDER)

Sr.no. Description Qty. reqd. Make and type Designation