Overhauling And Calibration Of 11Kv Breaker, Transformer And Other At Sub-Station Equipments Including Pdb And Mcc Of Bs-Iii Of Aa-Iii Under Ntk Project., 24 Paraganas North-West Bengal
TDR : 48825456
Tender Notice
BOQ
Expired
24 Paraganas North
West Bengal
Overhauling And Calibration Of 11Kv Breaker, Transformer And Other At Sub-Station Equipments Including Pdb And Mcc Of Bs-Iii Of Aa-Iii Under Ntk Project.
Name of Work : Overhauling and calibration of 11KV Breaker, Transformer and other at sub-station equipments including PDB and MCC of BS-III of AA-III under NTK Project.
Sl. No.
Item Description
1
For HT panel:Thorough testing and calibration of 11KV VCB 3 Panel distribution boardat site:A) Disconnection of 11KV HT cables.B) Cleaning of entire panel by carbon cleaner to remove all carbon particles.C) Cleaning of all dismantled components to remove all carbon particles and sulphation to improve insulation resistor (IR).D) 11KV Breaker completely servicing, cleaning by CRC & checking of all parts and make it in proper condition.E) Cable and termination to be cleaned by carbon cleaner.F) After servicing of all switch gear & checking its IR with respect to earth and phase to phase, they are racked in service position & kept at ON condition.At this condition High Voltage testing.G) All over current and earthfall relays tested by secondary injection.H)IR value checking of PT & CT.I) Tripping test of Breaker by primary injection.J) After testing all the HT cables (11KV) reconnected for successfully charging of 11KV supply on put on load condition. For LT PDB panel:A)Thorough cleaning of entire PDB panel & lighting.B)Testing & servicing of Air Circuit BreakerC)Testing of all MCCB, SFU, CT etc. D)All tightness checking.For LT MCC panel:A)Thorough cleaning of entire MCC panel & lighting.B)Motor Protection Relay Setting CheckingC)Testing of all MCCB, MCB, Contactor, SFU, CT etc. D) Water Level Sensor And Interlocking With Motor CheckingE)All tightness checking. For Transformer:IR/PI Value, Ratio checking, Oil lekage, Relay setting and others as per Annexure. For Battery Charger :Thorough Overhauling of battery charger, De-sulpheriztion & maintenance of battery(Report should be submitted as per Annexure I, II, III & IV)
2
Dehydration & filtrtation of 2 nos. 11/0.433KV 1600 KVA transformer oil of the existing trasnformer (2 nos. x 1500 ltr.) = 3000 Ltrs.[Make : ANDREWYULE]
3
Dielectric strength test as per specification of the IE rules (2 nos. 1600 KVA transformer).
4
Transportation charges of filtration machine (to & fro).
5
Supply & reflling of Silica gel.
6
N.B.:Within one year after the overhauling if any breakdown will occur, the agency should attend the site within twohours and complete the work within six hours in emergency basis.
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