Essential H.T. Works in various Electric Sub Stations at different T.E Buildings under EE(Elect)BCP, MTNL Delhi

Amount

Supply installation , Testing & Commissioning of 11 kv 3 phase 50 Hz 350 MVA sheet steel dust and vermin proof free floor standing extendable type H.T Panel having 2 Nos 230 V AC motor operated draw-out type 630 Amp vacuum Circuit Breaker ( Two outgoing) with necessary protection Measuring instrument including Energy analyser indicating instrument IDMT relay auxiliary master relay power pack 220 Volt AC 24 volt DC, CT 2O/G 100/50/5/5, termination arrangement for incoming and outgoing XLPE 11 KV cable, terminal blocks earth bus bar, sign writing etc as per detailed specification attached including dismantling HT connection of existing HT panel shifting the existing panel at location decided by the engineer-in-charge with in the building premises making necessary modification to the existing foundation if any, to suit the new HT panel making HT connections for incoming and outgoing of the HT panel after suitable testing complete as required. ( Make KIRLOSKAR/ CROMPTON GREAVES /SIEMENS/ AREVA/ ABB)

Supply and making indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core, XLPE aluminum conductor cable of 11 KV grade as required . (A) 150/240 sqmm

Supplying and fixing of complete 11 KV VCB epoxy body with dismantling of mechanism parts, brunt out vacuum interrupter bottle and refixing new interrupter bottle, alignment, greasing and high voltage testing etc. complete as required.

Supply and fixing of Vacuum interrupter bottle 11 KV 630 Amp. Make Alsthom/ Kirloskar/ Crompton with assembling, connection, high voltage testing complete as required.

Supplying & filling the transformer oil, sealed pack drum including transportation charges etc. ( Make : M/S Power oil /Savita with ISI marked having 50 KV R/C)

Supply & fixing of power pack unit having input 220 Volt AC and out put 24/48/110 Volt DC i/c. making inter connection suitable for existing HT system etc. complete as required.

De- hydration of transformer oil for 400 to 1600 KVA with Filter machine at site to maintain the break down value, die electric strength of oil up to 50 KV including providing oil testing facility at site as reqd.

Supply and making of Indoor type cable joint of 11 KV HT XLPE Aluminum armored cable of size 150sq.mm. to 240sq.mm. including testing etc. complete as required. (Make: Denson)

Supply and making of Strainght through type cable joint of 11 KV HT XLPE Aluminum armored cable of size 150sq.mm. to 240sq.mm. including testing etc. complete as required. (Make: Denson)

Servicing of 800 to 3200 Amp ACB Complete with cleaning, alignment, adjustment of gaps between phase to phase, lubricating all moving parts adjustment for smooth mechanical operation etc. complete as required.

Supplying, Laying and fixing, testing, commissioning of HT cable of 11 KV grade, 3 core 150sq.mm./185sq.mm. Aluminum conductor armored power cable etc. complete as required.

Servicing of 630/800 Amp 11 KV HT OCB / VCB complete with cleaning, alignment, adjustment of gaps between phase to phase, lubricating all moving parts, adjustment for smooth mechanical operation etc. complete as required.

Supply and fixing of 500 Watt Halogen Light for arresting of moister in HT Panel with 3 core 4 sq. mm cable 10 mtr approx., wiring connection testing complete as required.

Testing and maggering, p.c testing, insulation testing and rectification of moister in bus bar, insulator, and H.T Cable box, Heating of complete P.T, C.T with high voltage testing etc. complete as required.

Checking & arresting of Oil Leakages from 630 to 1000 KVA transformer at Site. The job scope as mentioned includes : a) Dismantling of LT cable’s / Bus- Bar’s connections & dismantling of L.T. Bushing Rods. b) Dismantling of Main Top cover / inspection window of Transformer. After draining of oil of Transformer into drums. ( as per requirement) c) Replacement of Cork rings set along with new Teflon rings of all phases for arresting oil leakages. d) Fixing of all terminals & Bus-bar’s connections & making adjustments. e) Replacement of cork gaskets, oil rings of inspection window side & Buckolz relay side & pipe line also for arresting leakages, if any. f) Re-filling of oil into transformer & examining of leakages for improving breakdown value of oil complete as reqd.

Testing and calibration of IDMT relay set having 2 Nos. O/C. 1 No. E/F & instantaneous element by secondary injection method, cleaning the contacts, resetting with required accuracy complete with checking and set right the wiring etc. complete as reqd. i/c testing of the complete system of HT panel for checking the actual working of CTs their wiring, connected IDMT relay, shunt trip system, breaker's tripping system and for any loose connection by primary injection method in all three phases and at each plug setting at actual time multiplier at site with suitable equipment i/c rectify the different in control wiring etc. if any complete as required.

Supply and fixing of following size MCCB, 36 KA rating, i/c dismantling of burnt out MCCB and re-connection of New MCCB, complete with testing etc. complete as required. (a) 200 to 250 Amp MCCB 3 Pole

(b) 400 Amp MCCB 3 Pole

Supply and fixing of 11 KV Spout in VCB and dismantling of brunt out spout with high voltage testing, meggring etc. complete as required.

Servicing and cleaning of 630 to 1600 KVA 11 KV / 415 Volt Dry type transformer i/c flexible joint connection and checking temperature relay for its operation, tightening of HT/LT connection and adjustment of tripping, meggering, high port testing, checking protection etc. complete as required.

Supply and fixing of metal body of 11 KV 630 Amp. HT VCB Make Crompton with assembling, connection, high voltage testing complete as required.

Supply and fixing of HT Bus Bar support Insulator with nut and bolt etc complete as required.

Supply and fixing of HT VCB Male contact with connection testiong etc complete as required

Supply and fixing of HT VCB Female contact with connection testiong etc complete as required

Supply and fixing of HT VCB Bus bar side Insulator (orange) with backlite sheet etc complete as required.

Supply and fixing of T & C switch in 11 KV HT Panel with wiring, connection, testing etc. complete as required.

Supply and fixing of 11 KV, HRC fuses with testing etc. complete as required.

Supplying and fixing of Digital type, Voltmeter up to 500 Volt, suitable size Make:- Trinity / L&T/ Slic, complete with wiring, connection, testing etc. complete as required

Supply and fixing of Digital type, Ammeter up to 2500 Amp. suitable size Make :- Trinity / L&T/Slic etc. complete with wiring, connection, testing etc. complete as required.

Supply and fixing of indication lamp with holder assembly 230 V AC / 24 DC / 48 V DC / 110 V DC, complete as required.

Supplying and fixing of Digital type, KV meter suitable size Make:- Trinity / L&T/ Slic, complete with wiring, connection, testing etc. complete as required

Providing and making of HT Panel control wiring with required wire, thimble etc complete as required.

Less credit on account of dismantled material.

DUBEY ELECTRIC WORKS