WBPHED/EE/AMD/NIeT-20 of 2024-2025/1

Amount

Supply, delivery at site and fitting fixing of Ammeter & Voltmeter at the following Feeders complete with withdrawal of the old faulty.

Digital Ammeter conzerv DM 1110, (Make-Approved Make)

Ammeter (0-150A) Make : AE for Motor Feeder No. 1

Analog Voltmeter (0-500V), Make: AE for Incomer Feeder

Deputing of skilled Technicians and personnel to inspect the ATS in (225KW) spare at site Kalyaneswari, dismantling, Megar Report, Tests conducted as per direction of the EIC.

Carrying of the ATS kalyaneswari to Kolkata workshop and back to kalyaneswari after repairing including loading and unloading charges.

Repairing of the spare ATS 225KW at works includes opening the coils from ATS and dismantling the same, supply and fixing of new Copper with double Nomax, insulation, supply of varnish (ELMO-50), supply & fixing of Nomaxinterlayer, reassembling of the coil after winding & fixing the top core along with necessary connection and Testing of the Transformer complete.

Repairing the Back Wash Pump after withdrawal of its casing, includes decoupling checking of the bearing along with other spares that includes neck ring and shaft sleeve with gland water thrower and rubber bush as per direction, work includes replacement of the rubber bush as per sample along with Nuts Bolts and Washers with Gear Oil 1 Ltr replacement also welding the base plate, levelling and alignment after fitting fixing and servicing, testing & commissioning to the entire satisfaction of the EIC.

Supply, delivery at site 55KW, 3 Phase Squirrel Cage TEFC, foot mounted, IP 55, IE2, S1 Duty, Class-F Insulation, Temp Rise Class-B, Induction Motor Standard IS : 12615/IS/IEC 60034, Ambient 50 Deg C, 50 Hz, +/- 5% frequency, 415V +/- 10%, 4 Pole, 1500 RPM, ND 250MX Frame (Make-Approved Make)

Supply of Tyre Coupling (Unique make) for the above Pump Motor set (55KW) TC 101015-2913DE

Rubber Tyre (Unique make) 2913 DE for Pump No. 1

Installation of the newly supplied motor, withdrawal of the faulty motor from its Frame, decoupling, cables-de-termination, fixing of the new Motor, Nuts & Bolts fixing, coupling after levelling & alignment, termination, replace of the relays and Testing & Commissioning to the entire satisfaction of the EIC.

Testing of all relay viz earth fault, over load, buchholz and checking of master trip, trip circuit supervision,CT,PT, spring charging system, closing/trip coil, breaker of HT and LT panel etc. Including calibration of Ammeter, Voltmeter, Power Factor Meter etc. by agency approved by irectorate of Electricity/WBSEDCL/Any power generating unit and submission of the Test Report to Department (4 Panel 33K VCB, LT Panel, 1200A ACB-5Ns., SFU-30A:7 Nos., SFU 400A: 1 No., SFU 250A : 2 Nos., SFU 200A : 2 Nos., SFU 125A : 4 Nos., Transformer 1000KVA,33/0.433KV : 3 Nos., In LT Panel - CDG-31 : 3 Nos. (2O/C, 1 E/F each), In HT Panel-MICOM P127 (Incomer - 3 O/C, 1 E/F1 O/V), Each Outoging (3 O/C (I>,I>>),1E/F(Ie>,Ie>>)}.

Following Testing of Transformer oil should be done:-i)Inter facial tension by Ring Method (IS 6104-1971)(ii)Flash point by pensky materns method, IS 1448 (P21)-1992(iii)Neutralization value (acidity) by chemical test, IS 1448 (P2)-1967.(iv)Di-electric strength (BDV) by electrode type method, IS 6972-1992.v)Specific resistance (Resistivity) by three terminal cell method IS 1603-1971(vi)Moisture (water) content by Karal Fischer titration method, IS 13567-92 (vii)Di-electric dissipation (tanD) by three terminal cell method, IS 6262-1971(viii)Sludge content by chemical test method IS 1866 Annex-A.(ix)Dissolve gas analysis (DAG) Gas chromatograph method, IS 10593 & 9433 (Transformer oil testing should be done from authorized laboratory and submission of Test Report to department as per direction and to the entire saitsfaction of the EIC.

Supply, delivery and withdraw of burnt out Fuse from ATS of High Lift Pump and installation of the newly supplied L&T make DIN Type FN 630A Fuse Link Cat No. SF 94437.

Add. GST@18%

Add. Cess@1%

EASTERN INDIA SALES AND SERVICE (BID ID -5524183)

Tarun Kumar Bhattacharya (BID ID -5540931)