Repair/Maintenance of Transformer and 11 KV network with allied works at Mil Stn Kanasar under GE (N) Bikaner

Disconnecting supply of transformer HT oil cooled aluminium/copper wound of capacity 63 KVA to 200 KVA, 11 KV graded from installed position on sub station, after disconnecting complete electric supply from HT and LT sides including earthing strips for transporting to factory/ workshop/ authorised service centre and back, draining out complete transformer oil and keeping in safe custody in clean and dry containers for re-use of transformer oil, opening top cover for checking the serviceability of coil winding, conditiong of body after repair/rewinding to carry out necessary repairs as on required basis, providing all insulating material like sleeves, tapes, kerb tapes, cork sheet etc, after checking and make functional of tap changer including replacement of unserviceable items (where required) as directed and installing in its original position and making all electric connections with thimbles & PG clamps and testing complete all as specified and as directed. Notes:- (i) Labour component required for the replacement of unserviceable parts shall deemed to be included in the unit rate quoted against this item. (ii) Major Parts (as required) and Transformer Oil shall be measured and paid for separately as under relevant items of this Schedule. (iii) All minor parts such as nuts, bolts, washers, insulating material, copper wire for delta connection, etc. shall be arranged by the contractor and the cost thereof shall be deemed to be included in the unit rate quoted against this item. (iv) Rates are deemed to be inclusive of checking and make functional of WTI, OTI, Buchholz relay including replacement of unserviceable items fixed in Transformer. (v) All T&P required for disconnection, re-connection, loading and unloading, transportation, etc shall be arranged by contractor and rates for the same shall deemed to be included in rate quoted. (vi) Testing of transformer shall be arranged by the contractor for Type Test & Routine Test which shall be carried out in the presence of Engineer-in-Charge and contractor shall submit test certificates to this effect before processing the RAR for payment. (vii) Actual weight of each coil shall be measured and paid seperately under under relevant items of this Schedule.

All as per serial item No. 1.00 above here-in-before but transformer capacity 630 KVA ,11 KV graded complete all as specified and directed.

All as per serial item No. 1.00 above here-in-before but transformer capacity 1500 KVA, 11 KV graded complete all as specified and directed.

Supply only HV side copper winded coil of existing type size and gauge 11 KV complete with insulation material for transformer upto 1.5 MVA complete all as specified and as directed.

Supply only LV side copper winded coil of existing type size and gauge 415V complete with insulation material for transformer upto 1.5 MVA complete all as specified and as directed.

M&L for opening the oil cooled copper wound Transformer capacity 63 KVA to 200 KVA, 11 KV graded from installed position on existing platform/sub station/ two pole/ four pole structure after disconnecting electric supply from HV and LV sides on site necessary repairs like replacement of washers, replacement of sleeves, valves, taps, kerb tapes, cork sheet, refilling of oil, HV bushing, LV bushing and copper terminal stud both end threaded etc after checking and make fully functional the Winding Temparature Indicator (WTI) and Oil Temparature Indicator (OTI) including replacement of unserviceable item (if required) as directed and installing in its original position and making all electric connections with thimble & PG clamps, commissioning including refilling of transformer oil after dehydration with dielectric strength (min 60 KV) and testing complete all as specified and as directed. Notes : (i) Labour component required for the replacement of unserviceable parts shall be deemed to be included in the unit rate quoted against this item. (ii) HV/LV bushes, breather assembly, copper terminal stud both end threaded, Transformer oil, valve, cork sheet shall be measured & paid separately under relevant item. (iii) T&P and minor parts will be arranged by the contractor and the cost thereof shall be deemed to be included in the unit rate quoted against this item. (iv) Container for keeping the transformer oil safe for reuse shall be arranged by contractor.

All as per serial item No. 6.00 above here-in-before but transformer capacity 630 KVA, 11 KV graded complete all as specified and directed.

All as per serial item No. 6.00 above here-in-before but transformer capacity 1500 KVA, 11 KV graded complete all as specified and directed.

Supply only HV bushing assembly with heat resistance gasket including insulation etc with accessories for outdoor / indoor type transformer of capacity 63 KVA to 200 KVA, 11 KV graded complete all as specified and as directed.

Supply only HV bushing assembly with heat resistance gasket, including insulation etc with accessories for outdoor / indoor type transformer of capacity 630 KVA, 11 KV graded complete all as specified and as directed.