WBPWD/EE/PMED/NIQ-04/2025-26

Amount

Throughly servicing, repairing and overhauling of 11 KV Single panel. 400Amp (Bieco Lawrie) and dismentling all components of electrical and mechnical portion incl. cleaning the dities, moisture of the BBC, HT bushing Spout, incl. V- contract, fingure contract by CTC oil and petrolium jelly after all necessary work and then testing of IR Value by 5000 Volt Insulating testing megger.

Throughly Changing of PT Transformer coil and fixing of Damaged Spare incl. servicing ,overhauling of 11000/110V 1 no P.T ( Bicco) incl. removalof PT from top position of HT 0CB with self contained tank and dismentling all components of electrical and mechnical portion incl. cleaning the dities and opening 3 sets Spout for changing of oil seal and gasket for stop of leakage againg re- assembling all components of PT as per direction of EIC for proper charging. incl. Testing the PT at Work shop at Agarpara incl.Sub-Mission of Test Report incl. painting the PT by synthetic enamel paint

Supply of Male & Female Spout of of PT ( approved Make)

Supply of HT PT Connecting copper rod.

Supply of 11KV 25Amp HRC fuse.

Carrying charges of PT from Contai Polytechnic to Agarpara and Agar para to Contai after repairing incl. loading and un -loading.

SITC 11 KV grade 3 Resin Cast Current Transformer as per following Specification.

A) Ratio: 30-25/5-5A

B) CoreI-I-Accuracy class-1.0 Burden-1VA

C) CoreI-II-Accuracy class-5P 10 Burden-15VA

D) B.I.L -12/28/75 KVp

E) Short Time Current : 18KA for 1 sec

Teting and calibration different type relay incl. sub mission of test Report incl. Transportation Charges.

Making End termination of 3 core 300 sq.mm 11KV HT XLPE Cable ( Approved Make)

Painting of HT OCB with two coats of synthatic enamel paint over one coats ready mixed primer of approved make and brand incl. preparation of surface by sand paper/emery paper, cleaning etc. for receiving fresh coat of paint

Servicing of 11/.433 KV Step Down 315 KVA ( Automatic Electro Gear & Bhart ) oil cool Transformer incl. H.T & L.T bushing incl. clening checking, testing etc as required incl. Testing the IR Value by Insulating testing Megger be for charging.

Lifting of core along with winding assembly by chain pully very precaousily incl. washing , cleaning by new transformer oil incl. drying properly by heat running for rising the IR Value.

S&F of Gasket to prevent the oil leakage 1no. for top cover LT & HT bushing incl. required accessories.

Hiring charges of Chain pully incl. 3 nos GI pipe ialong with all required accessories.

Carrying charges of Transformer oil, filteration Machine, Testing machniary, Chain pully from Kolkata to work site and work site to kolkata.

Supply anf fixing of Oil seal at Transformer HT & LT side.

Supply of Silica Gel.

Dehydration and filteration of transformer oil of 1no-530 Ltrs , PT-40 Ltrs & OCB -60 Ltrs

Di- electric test of transformer oil before filteration and after filteration as per direction of EIC.

Supply and pouring of New Tranformer oil.

Pressure Testing ( High voltage Test) by Skilled personal with HV Pressure Testing set of Rpair VCB , Cable and other portion. Incl. Transportation charges of Testing Instrument.

Transportation charges of Pressure Testing & Calibration Instrument from Khardah North-24 Parganas to Contai polytechnic and Contai polytechnic to Khardah.

Testing of sub-station equipments for find out the fault such as 11KV/433V Transformer and 11 KV HT OCB by special type testing instruments by scarching several hours detection to locate the fault of Sub-station equipments as per direction of E.I.C.

Supply and fixing of HTOCB Rack-out Handle.

Supply and fixing 110 Volt AC LED Indicating Lamp.

Supplying and delivery of 1.1 KV grade 4 core 150 sq. mm armoured Aluminium XLPE cable. (Make: Gloster/Havells/RR Kable/polycab)

Laying of one No. 4 core 150 sqmm cable in underground trench 460mm wide x 760mm average depth, with brick protection on the top of the cable with 8 (eight) Nos. bricks per Mtr. including filling the space between the bricks and cable and also the trenchwith shifted soil, leveling up and restoring surface duly rammed.

S&F of compression type gland and finishing cable end for 4 Core 150 Sq. mm above said cable as per GS.

Supplying & fixing medium gauge GI Pipe ( ISI-Medium) Protection with necessary fittings and jointing metarials as required. 80 mm dia.

M/S. N.C. HORE (BID ID -6388724)

T.D.K. ENTERPRISE (BID ID -6389284)