Tender For Rectification And Maintenance Of 04 (Four) Nos Transformer At 33/6.6 Kv Substation At Intake Kukrakuri Of Chatna Saltora Block Sub-Surface Based W/S Scheme Under Bankura Mechanical Division,Phe Dte - 1 Transformer – 1 (33 / 6.6 Kv) Oltc : 2, bankura-West Bengal

Tender For Rectification And Maintenance Of 04 (Four) Nos Transformer At 33/6.6 Kv Substation At Intake Kukrakuri Of Chatna Saltora Block Sub-Surface Based W/S Scheme Under Bankura Mechanical Division,Phe Dte - 1 TRANSFORMER – 1 (33 / 6.6 KV) OLTC : 2 FixedContactConnectedwithHTtapingof Transformeras per existing size and specfication. 3 Main Moving Contact Assly connected with HT taping of Transformeras per existing size and specfication. 4 ResistorMovingContactAsslyconnectedwithHT taping of Transformeras per existing size and specfication. 5 Transition Resistance Assemblyfor protecting transformeropenckt.atthetimeofchangingtap position from one tap to another tapas per existing size and specfication. 6 Energy Accumulator for force tap changing ( if spring energized).Model EN16. make CTR. 7 Bearing Plate Assembly Supply (standard)Model EN16 make-CTR. 8 Tap position indicator switch .Model TC-5211A make-CTR. 9 Automatic Voltage Regulating Relay (Digital display) model AFTSE1800RS.Make : Ascensor 10 Top & Bottom Gasket ,oil seal as per sample. 11 Dehydration & Filtration of Transformer Oil by heat run process for improvement of IR Value(minimum 60KV/mnt) by the hiringof Filtering Machine & Testing Machine & Kit etc as per I.E Rules. (Transformer oil will be supplied from Departmental office ) 12 Rectification of OLTC by removing the cover disconnecting the HT /LT cable assembly and throughout checking of existing circuits and switchgears items,changes of switchgear items (if any) , checking the controll circuits of RTCC, removing defective parts and refitting of the above sparesof item sl no 1 to 9 in existing position byexpart person of the subjected field and testing checking for a certain period with measuring the standard values of the transformer as per direction of EIC. 13 TRANSFORMER – 2 (33 / 6.6 KV) OLTC : 14 FixedContactConnectedwithHTtapingof Transformer as per existing size and specfication. 15 Main Moving Contact Assly connected with HT taping of Transformer as per existing size and specfication. 16 ResistorMovingContactAsslyconnectedwithHT taping of Transformer as per existing size and specfication. 17 Transition Resistance Assly for protecting transformeropenckt.atthetimeofchangingtap position from one tap to another tapas per existing size and specfication. 18 Epoxy Arm as per existing size and specfication. 19 Energy Accumulator for force tap changing ( if spring energized) Model EN16. make CTR. 20 Bearing Plate Assly Supply (standard) Model EN16 make-CTR. 21 Braided wire for Main Moving Contact and Resistor Moving Contact as per existing size and specfication. 22 Tap position indicator switch .Model TC-5211A make-CTR. 23 Retaining Switch (DSS).model ZM23 make- CTR. 24 Motor Protection Relay (Thermal overload) as per sample .Model SR30/SR20 BCH or similar type. 25 Automatic Voltage Regulating Relay (Digital display) model AFTSE1800RS.Make : Ascensor. 26 Top & Bottom Gasket,oil seal as per sample. 27 Dehydration & Filtration of Transformer Oil by heat run process for improvement of IR Value(minimum 60KV/mnt) by the hiringof Filtering Machine & Testing Machine & Kit etc as per I.E Rules.(Topup Transformer oil will be supplied from Departmental office ) 28 Rectification of OLTC afterremoving the cover plate anddisconnecting the HT /LT cable assembly and throughout checking of existing electro mechanical parts and switchgears items,dismantlingof defective parts, checking the controll circuits of RTCC panel and refitting of above items of sl no 1 to 9 at existing place byexpart person of the subjected field and testing checking for a certain period with measuring the standard values of the transformer as per direction of EIC. 29 TRANSFORMER (3150 KVA, 33 KV / 6.6 KV) : 30 Supply delivery of cast Allluminium boady 2 Kgs Elysian Blue Color Silica Gel dry and desiccant crystals type in theBreather of above transformer as per direction 31 Dehydration & Filtration of Transformer Oil by heat run process for improvement of IR Value(minimum 60KV/mnt) by the hiringof Filtering Machine & Testing Machine & Kit etc as per I.E Rules.(Topup Transformer oil will be supplied from Departmental office )(3360 ltrs. X 2 nos. trf.) 32 Charges for Di-Electric Strength Test (BDV Test) by the hiringof Testing Machine & Kit etc as per I.E Rules. 33 OLTC and main Transformer body De-Rusting and Painting including Paint supply and hiring of spray painting machine 34 TRANSFORMER (500 KVA, 33 KV / 0.433 KV) : 35 Supply delivery of cast Allluminium boady1 Kgs Elysian Blue Color Silica Gel dry and desiccant crystals type in theBreather of above transformer as per direction 36 Dehydration & Filtration of Transformer Oil by heat run process for improvement of IR Value(minimum 60KV/mnt) by the hiringof Filtering Machine & Testing Machine & Kit etc as per I.E Rules.(Transformer oil will be supplied from Departmental office )Transformer – (2230 ltrs. X 2) = 4460 Ltrs.OLTC – (730 ltrs. X 2) = 1460 Ltrs. 37 Charges for Di-Electric Strength Test (BDV Test) by the hiringof Testing Machine & Kit etc as per I.E Rules. 38 OLTC and main Transformer body De-Rusting and Painting including Paint supply and hiring of spray painting machine 39 Attendingfault at Kukrakuri Intake, with carrying different Testing, Servicing kit/machine like Insulation Resistance Checking machine (1 KV, 2.5 KV, 5 KV) 3 Phase Variac, Current Injection machine/ kit, Blower, Multimeter, Clamp meter, Different type of tools tackles, Various Testing Wires, MCBS, Wires & Cables, HT insulation Tapes, Gas can with nozzle, CRC, WD-40, Lecta Cleaner, Adhesive non Adhesive PVC Tape and items for complete servicing and testing the Transformers, VCBS, AVR etc . 40 Add: 18% GST 41 Add: 1% Cess

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