GE ELEC/D-33/2024-25

Amount

M&L for servicing /testing of breaker/control panel including CT, PT and relays in control panel of VCB of capacity 800/630 Amps and rating 11 KV complete as details mentioned as under:- (a) Details of servicing of breaker :- (I) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vacuum interrupter and insulating materials shall be wiped with a clean cloth. (iii) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section, etc.use grease for the operating shaft and bearings, and machine oil for other parts. (iv) Check for rust and wear. (v) Check Spring Tension and pitting of the Cluster Contacts. (vi) Visual check for rust and deformation. (vii) Check for loosened bolts and nuts, broken spring washers and snap pins etc. (viii) Check for loosened connections, rust, damaged lead wires. (ix) Check whether the contacts are damaged by arcing. (x) Checking of control circuit & tighten the connections if any. (xi) Check close & trip coil. (xii) Checking of Jaw Contacts Conditions and repair/adjust. (xiii) Replace the jaw contacts, If required. (xiv) Improvement of resistance of epoxy insulator and epoxy body by applying post heated varnish. (xv) Replacement of Dashpot/shock absorbers . (xvi) Replacement of carbon brush of spring charging motor (xvii) Flash cleaning of complete bus bar with CRC. (b) The following test shall be carried out:- (i) Primary Injection Test of CT/PT (ii) Closing & Opening Timing Test for all three poles. (iii) IR Test with megger in open and closed condition. (iv) Contact resistance test for all three poles (v) Closing coil resistance (vi) Tripping coil resistance. (c)Testing of following relays of control panel with Secondary Injection Kit,checking and programming of relay :- (i) Over current and earth fault relay (d) Testing of following Aux relay:- (i) DC Supply supervision relay. (ii) Master trip relay

S&F and installation battery 12 volts,100 AH, dry type in replacement of old unserviceable battery in battery charger with suitable size of new copper battery terminal and lugs and initially charging, commissioning and testing complete all as specified and directed by the Engg-in-Charge.

S&F MCB single pole of capacity 06 Amps to 32 Amps 10 KA, C curve with provision of suitable channels in replacement of existing fuses complete all as specified and directed by the Engg-in-Charge.

S&F in replacement Potential Transformers, single phase of 11 KV rating with ratio 11kV/rt3:110V/rt3, Cl.0.5 and burden class 50VA for 11 KV VCB Panels including taking down old one complete all as specified and directed by the Engg-in-Charge.

S&F in replacement of LED indication lamp for breaker ON/OFF/TRIP/Breaker Spring Charged/R-Y-B etc for 11 KV control panel including associated wiring, if reqd, complete all as specified and directed by the Engg-in-Charge.

Supply and installation in replacement Anti-condensation space-heater with Thermostatic control in cable and circuit breaker compartments of HT switchgears complete all as specified and directed by the Engg-in-Charge.

S&F in replacement vacuum interrupter suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement isolating contact assembly suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement fixed contact block complete suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement moving contact block complete suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement motor & gear assembly 230V AC suitable for 800/630 amps, 11 KV HT VCB including testing & putting on load complete all as specified and directed by the Engg-in-Charge.

S&F in replacement spring bearing gear suitable for800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement closing coil assembly 24 volts DC suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement of tripping coil assembly 24 volts DC suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement close/trip coil 24V DC for 11 KV HT VCB of capacity 800/630 Amps complete all as specified and directed by the Engg-in-Charge.

S&F in replacement panel door lock suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement auxiliary switch (7 No+7NC) suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement T&C Switch for Breaker ON/OFF purpose in HT 11 KV VCB panel including associated wiring, if reqd, for proper functioning of switch complete all as specified and directed by the Engg-in-Charge.

S&F in replacement support road with screws suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement support insulator suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement upper connector suitable for 800/630 amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement lower connector suitable for 800/630amps, 11 KV HT VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement Caution plate “CAUTION MEN AT WORK" of size 40cmx15cm made out of white acrylic sheet with Red colored glow tape and size of writing letter is not less than 5 cm each complete all as specified and directed by the Engg-in-Charge.

S&F in replacement of HRC fuse of capacity 20 Amps for VCB complete all as specified and directed by the Engg-in-Charge.

S&F in replacement MCB 20 to 32 Amps DP complete all as specified and directed by the Engg-in-Charge.

S&F in replacement of Digital Volt meter Secondary voltage 110 V for 11 KV VCB Control Panel complete all as specified and directed by the Engg-in-Charge.

M&L for replacement of complete control wiring (AC/DC) in existing HT 11 KV VCB Panel of capacity 630 Amps installed at substation using 2.5 Sqmm FRLS copper wire and associated accessories necessary for wiring and integration of control panel with breaker, relays, meters, power pack, T&C switch, annunciator etc and including the following:- (i) AC/DC copper wiring, lugs, terminals, TB's, TB markers, strips, etc which are necessary for integration of new items with existing panel. The contractor shall ensure integrity of critical protection scheme off the panel and shall be demonstrated via functional tests at site including tacking out control wiring complete all as specified and directed by the Engg-in-Charge.

Supplying, installation, commissioning and testing in replacement of 11 KV Current Transformer (CT`s), indoor type, resin cast epoxy type, of 25.0 KA/Sec having ratio 300/150/5-5 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering including associated wiring complete all as specified and directed by the Engg-in-Charge.

All as per item No 29 here-in-before but having ratio 200/100/5-5 complete all as specified and directed by the Engg-in-Charge.

All as per item No 29 here-in-before but having ratio 150/75/5-5 complete all as specified and directed by the Engg-in-Charge.

S&F in replacement Potential Transformers, single phase of 11 KV rating with ratio 11kV/rt3:110V/rt3, Cl.0.5 and burden class 100VA for 11 KV VCB Panels including taking down old one complete all as specified and directed by the Engg-in-Charge.

Disconnecting and taking down faulty and defective copper wound transformers of any capacity up to 315 kVA , 11000/433 Volts from two pole or 4 pole structure or substations and transporting to MES store yard for minor/major repair works complete all as specified and directed by Engineer - in- charge .

Disconnecting and taking down faulty and defective copper wound transformers of any capacity up to 400 to 1500 kVA , 11000/433 Volts from two pole or 4 pole structure or substations and transporting to MES store yard complete all as specified and directed by the Engg-in-Charge.

M&L in repairs for draining out complete transformer oil from transformer oil reserver tank up to 1500 KVA capacity at MES store yard for major repair works and storing the transformer oil in suitable container (container to be provided by the contractor to keep aside the oil for re-use (after repair of transformer) and lifting of core assembly by opening of top cover and other items for inspection/examination by Board of Officers and lowering/fixing of core assembly in its original position after inspection to make it ready for transportation to contractor workshop/factory for repair works. (Note:- Transportation charges will be paid separately against item No. 36 &37)

Transporting of defective/faulty copper wounds transformer of capacity up to 315 kVA , ratio 11000/433 Volts from MES store yard to contractor's workshop/factory for repair works and return back to MES store yard after repair works completed for installation at their same location complete all as specified and directed by Engineer in charge .

Transporting of defective/faulty copper wounds transformer of capacity 400 to 1500 kVA , ratio 11000/433 Volts from MES store yard to contractor's workshop/factory for repair works and return back to MES store yard after repair works completed for installation at their same location all as specified and directed by Engineer in charge complete all as specified.

T&P incl manpower required for shifting of serviceable transformer of capacity up to 1500 KVA from MES store Yard/Sub Stn (indoor/outdoor) or from any location at Delhi cantt for installation in place of unserviceable transformer and return back to MES store yard after replacing with repaired transformer complete all as specified and directed by Engineer - in- charge .

M&L for factory opening of faulty/defective transformer of ratio 11000/433 volts opening the top cover of transformer , carrying out the repairs /works listed at serial No. (i) to (xi) below for the transformers of capacity up to 315 KVA. (i) Taking out the core/coil of transformer from tank by disconnecting star delta connection of transformer , After dismantling of Transformer and physical joint inspection of core coil assembly (removing all 3 limbs HV &LV winding from Core Assembly) washing of core assembly by hot oil for removing brunt carbon and copper particles and cleaning of complete top yoke by oil (ii) Painting inside of the transformer with yellow paint and outside body with synthetic enamel paint of existing tint/color Cleaning inside of the transformer by using transformer oil. (iii) Refixing/ reassemble of complete core assembly and core coil assembly providing new coils and new tap leads of tap changer including requisite insulation material including heating up the transformer core assembly to remove moisture after carrying out the repairs works . (iv) Renewal of rubberized gasket set for top cover, Brass spindles, LT and HT bushings ,tap changer connection WTI &OTI connection and CT connection etc. (v) Refilling of the decanted transformer oil after centrifuging and testing for required di-electric strength. (vi) Refixing the transformer top cover with nuts, bolts and washers and conservator tank ready for final testing all as directed in presence of rep of MES. (vii) Preparing Inspection report for renewal of parts etc in presence of Engineer - in- charge and Contractor. (viii) The contractor shall arrange factory visit for the Engineer - in- charge or his representative as and when required, testing of transformer to be done on full load at factory. (ix) Soldering/ brazing or connecting LV bus bars with suitable size nuts, bolts and washers (x) Providing necessary insulation papers, sleeves, PVC pipes insulation sheet etc. (xi) Renewal of worn out nuts, bolts and washers Note : Coil and insulation shall be measured and paid separately

All as per item N0.39 here in before but up to capacity above 400 KVA to 1500 KVA complete all as specified and directed by the Engg-in-Charge.

M&L in repairs for rewinding of HT coils with copper wire DPC/super enameled high quality matching with existing gauge and impedance including requisite insulating paper/material in each layer of winding after taking down old existing winding of HT coils of 11 KV transformer complete all as specified and directed by the Engg-in-Charge. Note: (i) The rate quoted against these items is inclusive necessary provision of all types of insulating materials , heating and varnishing etc.

All as per item No 41 here-in-before but LT coils with copper strips complete all as specified and directed by the Engg-in-Charge.

M&L for drying/ovening of complete Core coil assembly(CCA) in vacuum chamber and continuous monitoring to improve of IR Values after varnishing the coil to eliminate moisture content from Transformer up to 1500 KVA capacity complete all as specified and directed by the Engg-in-Charge.

M&L after drying and ovening and Re-assembling of up to 1500 KVA Transformer core, testing of magnetic circuit for IR values, assembly and connection of OLTC of all phases, testing of transformer at low voltage, checking of ratio and polarity test complete all as specified and directed by the Engg-in-Charge. Note: For Item no 41 to 44 The following routine test as per IS 1180 (Part I) -2014 shall be carried out at repairing workshop /manufacturer having NABL calibration of test equipments . (i) Measurement of winding resistance. (ii) Measurement of voltage ratio and check of voltage vector relationship. (iii) Measurement of impedance voltage/short circuit impedance (principal tapping) and load loss . (iv) Measurement of no load loss and current. (v) Measurement of insulation resistance. (vi) Dielectric tests (c) The contractor shall give written warranty of one year for the repaired transformer. Note :-HT/LT leg coils and transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only.

M&L for hiring, transportation, Installation and testing of serviceable transformer of same capacity or higher in place of unserviceable transformer which is under repair and shifting back to workshop, on hire basis for 15 days when ordered complete all as specified and directed by the Engg-in-Charge. Note :-1. Repairing of transformer have to be completed within 15 days duration, no extra cost will be paid toward hiring charges beyond 15 days. Moreover contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer. In case any fault/breakage/burning/ peeling of painting and any other defects occurred in hired transformer the contractor shall have to make good himself from his own expenses. Contractor should check the available infrastructure and to be sure regarding safety of hired transformer before installation. The rate quoted is deemed to be included all as transportation cost, , earthing leads lifting/lowering arrangement etc for transformer of capacity upto 630 KVA. Note-2. In case the defective/ unserviceable transformer not repaired & installed on its site within the specified period of 15 days from the date of handing over to contractor ; a penalty recovery @ Rs. 1000/- per day will be charged from his dues. During this period contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer. No extra cost beyond 15 days will be paid to contractor on this account.

S&F in replacement of transformer bushing on LT 433 volt side including brass stems/rods, conical bush and gasket suitable for indoor/outdoor transformer of the following capacity complete all as specified and directed by the Engg-in-Charge.

63 KVA to 315 KVA Transformer

400 KVA to 1500 KVA Transformer

S&F in renewal porcelain transformer bushing HT 11 KV including brass set stems conical bush and gasket for indoor/ outdoor transformer of following capacities complete all as specified and directed by Engineer-in-Charge.

63 KVA to 315 KVA Transformer

400 KVA to 1500 KVA Transformer

S&F in renewal of silica gel of breather assembly with vent pipe and new silica gel for indoor/outdoor transformer of the capacity up to 315 KVA complete all as specified and directed by Engineer-in-Charge.

All as per item No 48 above but of capacity 400 KVA to 1500 KVA complete all as specified and directed by Engineer-in-Charge.

M&L for centrifuging and dehydration including filtration and cleaning of transformer oil by using automatic centrifuging/ dehydration machine electrically operated without any shutdown of transformer including testing oil sample before and after dehydration and filtration oil to achieve min 35 to 40 KV breaking capacity at 4 mm gap by absorbing and abolishing all sludge particles for use as per BS-B-66-1983 complete all as specified and directed by Engr - in- charge Note:- (i).Standby supply will be arranged by the contractor) (ii) Transformer oil required for top up shall be measured and paid separately. (iii) Contractor have to arrange the dehydration machine and testing kit from his own resources without any extra cost

Supplying and topping up transformer oil low viscosity, dielectric strength 35 to 40 kV breaking voltage for topping up transformers duly centrifuging including filter action by using automatic centrifuging machine to achieve min 35 to 40 KV breaking capacity at 4 mm gap by absorbing and abolishing all sludge particles for use as per BS-B-66-1983 complete all as specified and directed by Engr - in- charge.

Supply and fill in replacement silica gel in transformer complete all as specified and directed by Engr - in- charge.

M&L for Painting of transformer after preparation of old painted surfaces of steel, by brushing/cleaning stain, greasy spots with thinner, applying two coats of spray painting with PU paint with spraying machine to transformer indoor/outdoor, fixed on poles or in Sub Station at different location after disconnecting of HT supply from incoming and LT supply from outgoing capacity 63 KVA to 315 KVA complete all as specified and directed by Engr - in- charge.

All as per Serial item No 53 here-in-before but 400 KVA to 1500 KVA capacity complete all as specified and directed by Engr - in- charge.

Earthing complete in replacement with galvanized steel earth plate electrode 60 cm x60 cm x 6 mm thick buried directly in ground ,(Earth pit not less than 2.25 meter deep below ground level) with top edge of plate not less than 1.5 meter below normal ground level ,connected to and including galvanized iron earth wire 32 X 6 mm by means of nut, bolts, check nuts and washers of galvanized iron or steel and provision of charcoal dust and common salt packed all around the earth plate including necessary excavation and earth work in soft/loose soil and testing complete all as specified and directed and shown in electrical plate number 3 of MES SSR part-I (2009). (a) Excavation and earth work for drilling hole for electrode in soft/loose Soil. (b) PCC pit in cement concrete 1:2:4 type B-1, Pre cast RCC cover with suitable handle 40 mm thick in PCC 1:2:4 type B-1, reinforced with welded steel wire fabric weighing not less than1.87 Kg/ Sq meter. (c) Funnel with watering pipe of GI 20 mm nominal bore light grade and lugs etc complete all as specified and directed (d) 40 mm nominal bore medium grade GI protection pipe for protection of earthing lead complete all as specified and directed. (e) Requisite quantity of common salt and charcoal. (f) Testing of earthing.

S&F in replacement of galvanized iron strip 32x6 mm for additional earthing lead beyond 7.5 meter complete all as specified and directed by Engr - in- charge.

S&F Thermometer of transformer capacity up to 630 KVA complete all as specified and directed by Engr - in- charge.

Taking down unserviceable sheet gasket (Cork sheet), Supply and fix synthetic rubberized cork sheet gasket 6mm 2' x 3' size sheet thick for top cover HT/LT bushes at places existing and tighting all the bushings and top cover to avoid any oil leakages of capacity upto 630 KVA complete all as specified and directed by Engr - in- charge.

M&L for Calibration of all the electromagneitic/ thermal/ microprocessor relays of 11 KV VCB/RMU and setting the relay tripping timings in advance to the feeding sub station to ensure pock wise re-installation of various relays in position ensuring proper functioning complete all as specified and directed by Engr - in- charge. Note :- (a). Primary & secondary injection kit shall be arranged by the contractor (b) DC Supply for relay testing shall arranged by the contractor (c) The contractor shall prepare the relay adjustment and tripping timing chart in the follow up fashion and submit to Engineer-in-Charge.

M&L for complete bush cutting vegetation around the substations/ transformers lines complete all as specified and directed by Engr - in- charge.

Taking down burnt defective drawnout/inlet Valve (Brass any size) and supply and fixing new drawn out/Inlet valve (brass as per existing size) suitable for any make of cap upto 315 KVA Transformer complete all as specified and directed by Engr - in- charge.

All as per item No 61 above but from 400 KVA to 1500KVA complete all as specified and directed by Engr - in- charge.

Taking down the Defective tap changer assembly and S&F offload tap changer assembly suitable for any make upto 1500 KVA transformer with 7 tapping position including opening top cover, conservator etcs complete all as specified and directed by Engr - in- charge.

M&L for repairing/ Plastring of Transformer platform of size 2.2mx2.2mx1 m height built in CM 1:4 including 20mm graded stone aggregate over the plinth along with provn of stair case on one side complete all as specified and directed by Engr - in- charge.

M&L Sticking of ready made sticker with letters,figures clearly mention, Name , SM No, in red colour of size for HT VCB , RMU, Step down transformer 0.6M x 0.2 M size complete all as specified and directed by Engr-in-charge.

M&L for applying Two coats of cement painting with prepared white (Snow Sem) including preperation of surface by scrapping & cleaning with wire brush for transformer plitnth area of any size complete all as specified and directed by Engr-in-charge.

M&L for complete removal of Stone aggragerate and removing of sand mud, debris/ weeds and plants from the agraggate and relaying at the same place complete all as specified and directed by Engr-in-charge.

Supply, installation, commissioning and testing in replacement of DC power pack for RMU comprising 12 V and 0.7 AH with complete accessories required for commissioning complete all as specified and directed by Engr-in-charge.

Disconnecting HT supply from 11 KV, 630 Amps RMU, 3/4/5 way and servicing and overhauling of RMU, checking of tripping mechanism, greasing of moving contacts, cleaning of carbon from main contacts, checking of spring tension, checking of loosened bolts and nuts, checking of loosened connections, rust, damaged, lead wire, checking of spring charging motor, improvement of resistance of CTs, PT, epoxy insulator and epoxy body by applying post heated varnish and testing on load complete all as specified and directed by Engr-in-charge.

M&L for checking the existing pressure of SF6 Gas in gas chamber of 11 KV, 630 Amps RMU, 3/4/5 way before filling and topping up to the SF6 gas in the chamber of RMU including supervision of gas filling /topping up process and checking the pressure of gas after filling complete all as specified and directed by Engr-in-Charge.

S&F in replacement of cable boost 11 KV in 630 Amps RMU, 3/4/5/7 way complete all as specified and directed by Engr-in-Charge.

S&F in replacement associated ring-core cast-resin insulated CTs 50/1 Amps 2.5 VA 10P10 for protection in 11 KV, 630 Amps RMU (Ring main unit) complete all as specified and directed by Engr-in-Charge.

S&F in replacement associated ring-core cast-resin insulated CTs 50/1 Amps 2.5 VA Class 1 for protection in 11 KV, 630 Amps RMU (Ring main unit) complete all as specified and directed by Engr-in-Charge.

S&F in replacement associated ring-core cast-resin insulated CTs 100-50/1 Amps 2.5 VA 10P10 for protection in 11 KV, 630 Amps RMU (Ring main unit) complete all as specified and directed by Engr-in-Charge.

S&F in replacement associated ring-core cast-resin insulated CTs 100/1 Amps 2.5 VA Class 1 for protection in 11 KV, 630 Amps RMU (Ring main unit) complete all as specified and directed by Engr-in-Charge.

S&F in replacement 1-Ph (11 Kv/rt3):110 VAC, 5000 VA Potential transformer in 11 KV, 630 Amps, RMU (Ring main Unit) complete all as specified and directed by Engr-in-Charge.

S&F in replacement of Faulty operating mechanism of earthing switch for VCB, installation of new operating mechanism of earthing switch with Testing, commissioning etc complete all as specified and directed by Engr-in-Charge.

S&F in replacement of MCR-3 way Operating mechanism interlock of 11 KV RMU for Operation + Earthing switch of VCB installation of new Operating mechanism interlock of 11 KV RMU for Operation + Earthing switch of VCB with Testing, Commissioning etc complete all as specified and directed by Engr-in-Charge.

S&F in replacement of 11KV CT PT Unit Indoor type panel made out of 2mm CRCA sheet comprising of Current Transformer Ratio – 400/5A; CL - 0.5-; Burden – 5VA; Hz –50 S.T.C – 13.1kA for 1 sec; H.S.V – 12kV B.I.L – 12/28/75kV (P); As per IS 2705/92 Potential Transformer Ratio – 11kV/110V; Class - 1; Burden – 50VA; Hz- 50 V.F – 1.2 Cont. and 1.5 for 30 secs.; H.S.V – 12kV B.I.L – 12/28/75kV (P); As per IS 3156/92 complete all as specified and directed by Engineer - in- charge. Note:- PCC Plinth,foundation and welding work etc shall deemed to be included in the quoted rate.

Note : contractor should procure and provide 50 % of the material as listed above within 15 days of the placing of work order and shall be verified by the Engr-in-charge

Rajindera Enterprises (BID ID -3133967)

Vijay Electricals (BID ID -3137224)

BLUE HILL ELECTRICAL AND ELECTRONICS (BID ID -3137615)