ROUTINE BREAKDOWN MAINTENANCE WORK OF SWITCHYARD

Amount

Routine Maintenance of 400 KV ATPS Switchyard

Routine Maintenance of 400 KV BTPS Switchyard

Routine Maintenance of 132/11 KV ATPS Switchyard

Routine Maintenance of 100 MVA ICTs, 10 MVA CS-1&2, 400/33 KV Reactor, 220/48V Battery System & 0.4 KV MCC Room etc. Switchyard

Routine & Breakdown Maintenance of control cables of 400KV/132V of A & B TPS Switchyard

Routine & Breakdown Maintenance of lighting of 400KV/132V of A & B TPS Switchyard

Round the clock operation of air compressors of ‘A’TPS daily (including SUNDAYS & HOLIDAYS).

Assistance in operation of 11KV substation at 132Kv Switchyard ATP, Anpara in shift (including SUNDAYS & HOLIDAYS).

Dismantling, erection, commissioning & testing of 400/132KV Lightning arrestor/ CVT per pole.

Dismantling, erection, commissioning & testing of 400KV CT per pole.

Dismantling, erection, commissioning & testing of 132KV CT per pole.

Preventive maintenance of 400KV Sequential /Pantograph isolator including bearing O/H of three pole

Preventive maintenance of 132KV Sequential isolator including bearing O/H of three pole

Providing shunts/ restrengthening/ replacement the 400/132KV damaged jumper.

Centrifuging of oil of 100MVA ICTs/Reactors/10MVA Transformer per day

Replacement of pantograph isolator of one pole.

Replacement of support insulator of pipe bus of 400/132KV along with associated work per phase

Overhauling of Motorized Drive mechanism box of 400/132KV isolators

Overhauling of Drive mechanism box of 400/132KV earth switch

Overhauling of 0.4KV circuit breaker installed in MCC room.

Replacement of Male & or Female contacts of one pole of 11KV MOCB breaker.

Replacement one pole of 11 KV VCB breaker

Replacement of wave trap of one phase

Replacement of trapeze assembly of one phase

Replacement of Pilot Valve of 400 KV SF6 Breaker

Erection and Dismantling of Scaffolding in 132/400 KV switchyard per pole

Replacement of one Buchholz relay of ICT/Reactors/10 MVA Transformer.

Shifting of one 10 –14 KL capacity oil tank

Replacement of PRV of 100MVA,400/132/33KV ICT

Attending hot spot from 400KV/132KV switchyard equipments.

Attending air leakages from cooler tubes of IR make type 15T-2 air compressors by replacing the faulty tube with new/repaired tube:

Attending problem of safety valve floating of various stages of 15T-2 compressors:

Attending mal functioning of 60Kg/cm2 air pressure reducers and solenoid valves by replacing O-rings, gaskets & seals

Attending problem of air leakage/passing from 60Kg/CM2 NRV by replacing faulty valves seals, spring etc

Checking and attending air leakage from 400/132 KV S/Y compressed air line stop valves, NRV etc

Brazing, cutting, and jointing the finned tube cooler nest for attending the air leakage from 60Kg/cm2 finned tubes of stage-I, II, III of 15T-2 compressors are to be repaired

Brazing, cutting/jointing works on 30Kg/cm2 compressed air pipeline of 400/132 KV S/Y:

Replacement of desiccant material & overhauling of heat less air drier.

Replacement of crank shaft of 15T-2 IR make compressors

Disconnecting and connecting of terminal connectors at transformer bushing of ICT/GT per phase.

Shorting of all the three phases of Generator Bay

Rewinding of induction motors of 3 phase, 415V Up to 1.0 KW

Rewinding of induction motors of 3 phase, 415V above 1.0 KW & up to 2.5 KW

Rewinding of induction motors of 3 phase, 415V above 2.5 KW & up to 5.0 KW

400 KV SF6 Circuit breaker timing test.

132 KV ABCB/SF6 Circuit breaker timing test.

132 KV ABCB/SF6 Circuit breaker static contact resistance measurements.

400 KV SF6 Circuit breaker static contact resistance measurements.

400 KV Centre break isolator contact resistance measurement.

132 KV Centre break isolator contact resistance measurement.

Testing of 400 KV CT & its connected circuit.

Testing of 132 KV CT & its connected circuit.

Testing of 400 KV CVT/PT & its connected circuit.

Testing of 132 KV CVT/PT & its connected circuit.

Testing of 400/132 KV LA.

Testing of protection and tripping relays of 132/6.9 KV & 132/11KV Transformers

Testing of 11/33KV CT and it’s connected circuit.

Testing of Distance Protection numerical relays (REL670/ 7SA522/ P-543 /P-542)

Testing of Transformer Differential, REF, etc. Protection numerical Relay (P645)/ BUS BAR DIFFERENTIAL P743.

Testing of Over Current, Earth Fault, etc. Protection numerical Relay (P142).

Testing of 11 KV Over Current, Earth Fault, etc. Protection numerical Relay (VAMP).

Testing of 11/33 KV MOCB/Vacuum Circuit breaker (R, Y & B phase)

(a)Upkeep of MCB control room floor & panel/board. (b)Upkeep of Battery room in switchyard (c)Upkeep of MCC room & charger room including panels. (d)Upkeep of PLCC/ Carrier room & panel. (e)Upkeep of testing lab, AE’s office, storeroom, shift engineer room, staircases & galleries of MCB. (f)Upkeep of 4 No. bathrooms/latrines. (g)Upkeep of Compressor room in switchyard. (h) Upkeep of 11 KV switchgear room, panels, operator room, store room, external veranda around 11 KV switchgear room.

Upkeep of marshalling boxes, panels/cabinets of 400/132/33 KV switchyard .

Cleaning of oil pit (lxbxh)- 7x7x3.2 m

Cleaning of oil pit (lxbxh)- 4.5x4x5 m

Cleaning of oil pit (lxbxh)- 2.5x2x1.75 m

Cleaning of latrine pit

Cleaning of roads in 132/400 KV switchyard area

Cleaning of Cable gallery of MCB of 400/132 KV system including trenches of ATPS & BTPS.

Cleaning of site offices, stores, toilet, compressor room, etc

Cleaning of online ABT monitoring system of ATPS & BTPS.

Cleaning of all roads within the BTPS switchyard once a month

Cutting of plants more than six inches in height adjacent to BTPS switchyard

Removal & Disposal of grass, wild plants, shrubs, etc as per scope of work for approx. 55,000.00 M2 of ‘B’TPS switchyard including ICT-3, 33KV Reactor areas

Removal & Disposal of grass, wild plants, shrubs, etc as per scope of work for approx. 60,000.00 M2 of 400/132KV ‘A’TPS switchyard.

Cutting & Disposal of grass & wild plants, shrubs in surrounding periphery area of 400/132/33 KV switchyard and corridor of unit 1 to 5 transmission lines as per scope of work for approx. 1,80,000.00 M2

Removal & disposal of cows or any animals from A&B TPS Switchyard

Cutting & Disposal of grass, wild plants, shrubs, etc as per scope of work for approx. 10000.00 M2

Trimming of trees 50 to 100 mm dia

Trimming of trees 100 to 150 mm dia

Trimming of trees Above 150 mm dia

Cutting & Disposal of grass, wild plants, shrubs, etc as per scope of work for approx. 7700.00 M2

Maintenance of grass lawns including cutting if grass with lawn mower or foot drive thresher including watering and removing weed etc. (Area of Lawn=1929 m2)

Preparation & spray of anti weed solution in 400KV 'A'TPS switchyard area.

Preparation & spray of anti weed solution in 400KV 'B'TPS switchyard area.

Preparation & spray of anti weed solution in 132KV 'A'TPS switchyard area.

Preparation & spray of anti weed solution in adjacent area of A and B TPS 400/132KV switchyard area

Cleaning of Acrylic Sheet in MCB Room

Manish Auto & Electricals (BID ID -5618015)

M/s PROJECT ENGINEERING SERVICES (BID ID -5617853)