B.I.A... M and R to WSS...Augmentation of 11/0.433 KV Substation and allied works

Hermetically Sealed transformer (SS-TR-HSL)

Supplying, installing, testing & commissioning 3 phase, 11/0.433 kV, 50 Hz., 400 kVA, Mineral oil immersed and naturally cooled outdoor type, Copper wound, without gas cushioning, hermetically Sealed transformer, delta/star connected with additional neutral brought out on load side, temperature rise should not exceed 45? by thermometer in oil and 50? by the resistance method in winding at full load rating, using type A winding insulation (kraft paper) , with HV tapping (with off load tap changer) off load +5 to -10 in steps of 2.5%,having 7 number of tap positions with standard accessories complete with test certificate with below 1225 Watts at 50% load, 3450 Watts at 100% load as per IS:1180 (part 1) : 2014 with necessary permissions of Electrical Inspector, as per specification no SS- TR-HSL.

Accessories

Supplying and erecting 11 kV outdoor type gang operated air break, triple pole switch 400 A capacity with 3 post pin type insulator per phase, mounted in horizontal or vertical position with necessary channels on provided cross arm with adequate length of "C" class G.I. pipe for operating handle erected on extended square shaft. The operating handle provided with lock and key at suitable height from ground level with necessary clamp.

Supplying and erecting, 11 kV outdoor type drop out fuse with insulator complete with fuse holders, fuse barrel with metal fitting, fuse element mounted on M.S. channel with working current of 15A capacity complete erected on provided cross arm.

Dismantling

Dismantling the existing distribution transformer of any capacity from the plinth / foundation safely without any damages.

Dismantling existing DO / AB switch set complete from D.P. structure in an approved manner.

Insulators (OH-INS)

Supplying and erecting distribution class, 11 kV thyrite type lightening arrester with nut bolts, on provided MS channel as per specification no. OH-INS/LA

Plate, Pipe type Earthing (EA-EP)

Supplying, installing and testing earthing with copper earth plate size 30 x 30 x 0.315 cm complete with all accessories of copper materials & recording the results as per specification no. EA-EP

Supply, installing, and testing of maintenance free earthing comprising of electrode of 17.2 mm diameter Low Carbon Steel with 250 micron molecular copper bonded earthing rod of Length 3m along with Carbon based environment friendly back fill ground enhancing compound required to fill up the excavated earth with required quantity (min. 125kg) complete, and recording the results specification no. EA-MF

HT SF6 Load Break Switch /VCB/RMU (SW-HTS)

Supplying, erecting, testing & commissioning 11kV, 630A, 21kA/3sec, 3 way outdoor, extensible motorised SCADA compatible RMU, internal arc tested consisting of 1 no. feeder with 1 LBS and 2 nos. feeder with 2 VCB. compliant to IEC 62271-100,200 and 102 as per specification no. SW-HTS/RMU SCADA.

Providing, supplying, erecting & commissioning of Transformer condition monitoring unit(TCMU)comprising of sensor for transformer oil level, oil temperature, lug temperature Humidity, voltage, current and ambient noise on realtime.

Accessories

Supplying and erecting GI strip of required size used for earthing on wall and/or any other purpose with necessary GI clamps fixed on wall painted with bituminous paint in an approved manner with joints required as per specification no EA-EP.

Masonry Work

Supplying and spreading stone metal 25mm size for 100mm depth above the ground level complete.

Painting (CW-PTG)

Painting fencing of transformer substation including all supports, iron work and doors from both sides by scraping existing paint, with one coat of red oxide & two coats of aluminium paint complete

LT Cables (Aluminum) (CB-LT/AL)

Supplying, erecting & terminating FR XLPE insulated, galvanised steel formed wire armoured (strip) cable, 1100 V 3½ core 300 sq. mm. aluminium conductor complete erected with glands & lugs on wall/ trusses/pole or laid in provided trench/ pipe as per specification no. CB-LT/AL

Cable Joints & End Termination Kits (LT Cables) (CB-JT/LT)

Providing & erecting epoxy outdoor / indoor end termination kit for LT XLPE armoured cable 240 to 300 sq mm., with necessary material as per specification no. CB-JT/LT

Providing and erecting Heat shrinkable touch proof indoor termination kit for 11 kV (UEV 22 kV (E)XLPE HT cable 3x240 to 400 sq. mm. with necessary material as per specification no. CB-JTIHT

Providing and laying in situ Cement Concrete M-15 of trap/ granite / quartzite / gneiss metal for foundation and bedding including bailing out water, form work, compaction, curing, etc. complete.

(Cement 5.90 bags / cum) Spec. No. - Bd E /1 Page No. 287 and B-7, Page No. 38

2) In PCC M-150

Credit for Dismantled Material

Transformer (Copper Winding)

H.G. / M.S. / G.I. Materials / Poles etc.

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