Repair comprehensive maintenance of transformer RMU Battery charger and connected items at CVD Piru Vihar DIPAC HQ TG Vikram Batra Line CMP Line Chitral Line Basantar Line EME Unit Line Kabul Line Baird Place Kotwali Line C EDZ Office Area Account Of

Amount

Repair/ maintenance of Transformer 11/0.433 KV of Cap 100 KVA (Location :-CVD Depot ) as following:-

Disconnecting electrically and mechanically indoor/outdoor transformer capacity upto 100 KVA from HT/LT terminals and lowering down/getting out from 2/4/6 pole structure/plinth or inside sub station for major repairing/minor repair complete all as specified and directed .Each job -1

M&l for draining out complete transformer oil from transformer of 100 KVA capacity at site which found major repair and storing the oil in suitable container (container to be provided by the contractor to keep aside for re-use (after repair) and lifting of core assembly by opening of top cover and other items for inspection/examination of core assembly, to make it ready for transportation to carry out rewinding work in workshop. Each Job-1

M&L for transportation of unserviceable transformer of capacity upto 100 KVA from site to workshop and return back for re-installation it on original position/location after repairing from workshop (Rate is deemed to be inclusive of transportation, T&P, crane and man power) complete all as specified and directed .Each Job-1

M&L labour for alternative arrangement by hiring, transportation of transformer of capacity 100 KVA in place of unserviceable transformer on hire basis for 15 days including, installation, connecting and testing of transformer and return back after installation of repaired transformer complete all as specifed and directed. Note : (i) Repairing of transformer have to be completed within 15 days no extra cost will be paid toward hiring charges beyond 15 days . Moreover contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . In case any fault /burning /peeling of painting and any other defects occured in hired transformer the contractor shall have to made good himself from his own expenses. (ii) Contractor should check the available infrasturcture and to be sure regarding safety of hired transformer before installation . The rate quoted is deemed to be include transportation cost, earthing lead etc. (iii) In case the defective transformer not repaired & installed on its site within the specified period of 15 days from the date of handing over to contractor a panelty recovery @ Rs 1000 /- per day will be charged from his dues. During this period contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . No extra cost beyond 15 days will be paid to contractor on this account. Each Job-01

Taking down the unserviceable copper wound from transformer of capacity upto 100 KVA, opening top cover, and carrying out the following work complete all as specified and directed :- (a) Dismantling of all attachment viz breather assembly, conservator, oil temperature gauge, HT/LT bushing etc. and keeping aside for reuse. (b) Taking out the core with winding assembly. (c) Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (d) Cleaning of complete transformer tank, oil fins, conservator tank removing of sludge, and making the inside surface of tank dry by blowing of hot air and rectify ant leakages in tank or any welding work is reqd as directed and specified.

(a) Repairs to the transformer of capacity upto 100 KVA as follows :- (i) Rewinding of HT/LT leg coil complete using copper wire /strip of appropriate gauge, size and turn as per existing with double paper coated insulation including all requisite insulating materials like packing sleeves, separator, tapes etc. heating, varnishing the core and winding assembly after framing up top and bottom steel structure of transformer all as specified and directed. (ii) Replacement of all insulating materials other than incorporated for rewinding of HT/LT coils as per existing. (iii) Fixing only HT procelain bushing with studs, nuts, washers 3 Nos. and LT procelain bushing with studs, nuts, and washers 4 Nos. and connection with primary and secondary windings and reconnecting with the main terminals as required and directed.

(iv) Fixing only breather assembly, conservator, oil temperature gauge after proper cleaning, minor repairs etc. as required and directed. (v) Replacement of all unserviceable gasket from top cover, HT/LT bushing with studs as directed by using rubberised gasket sheet 4.0mm/6.0mm thick duly pasted with suitable adhesive . (vi) Replacement of unserviceable bolts with new one and fixing of existing serviceable bolts, nuts, washers of different sizes and tightening properly. (vii) Repositioning of core and winding assembly inside the tank, assembling complete unit and making the transformer ready for filling oil and subsequent testing as directed. (b) The contractor shall give written warranty of one year from the certified date of completion for the repaired transformer. Note :- HT/LT leg coils and transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only. Each Job-01

Supply only HT coils with super enamelled copper wire /DPC of high quality duly matching with the existing guage and impedance.-62 Kgs

Supply only LT coils with super enamelled copper wire strip/DPC of high quality duly matching with the existing guage and impedance.- 48 Kgs

Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5 mm gap for filling in transformer or for topping up as required and directed.-150 Ltrs

Supply and fixing Thermometer of transformer capacity upto 100 KVA complete all as specified and directed. Each-01

Material & Labour for painting of transformer of capacity 100 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SL No, SM No, and capacity of transformer complete all as specified and directed.Each-01

Supply & fixing in replacement new off load tap changer assembly complete, making connection and testing complete of the transformer of cap 100 KVA .Each-01

Material & labour for replacement of oil level indicator of Transformer of any Cap all as directed by Engineer-in-charge. Each-01

Repair/ maintenance of Transformer 11/0.433 KV of Cap 160 KVA (Location :-Near NIP Gate,CVD Depot ) as following:-

Disconnecting electrically and mechanically indoor/outdoor transformer capacity 160 KVA from HT/LT terminals and lowering down/getting out from 2/4/6 pole structure/plinth or inside sub station for major repairing/minor repair complete all as specified and directed .Each job -1

M&l for draining out complete transformer oil from transformer of 160 KVA capacity at site which found major repair and storing the oil in suitable container (container to be provided by the contractor to keep aside for re-use (after repair) and lifting of core assembly by opening of top cover and other items for inspection/examination of core assembly, to make it ready for transportation to carry out rewinding work in workshop. Each Job-1

M&L for transportation of unserviceable transformer of capacity 160 KVA from site to workshop and return back for re-installation it on original position/location after repairing from workshop (Rate is deemed to be inclusive of transportation, T&P, crane and man power) complete all as specified and directed .Each Job-1

M&L labour for alternative arrangement by hiring, transportation of transformer of capacity 100 KVA in place of unserviceable transformer on hire basis for 15 days including, installation, connecting and testing of transformer and return back after installation of repaired transformer complete all as specifed and directed. Note : (i) Repairing of transformer have to be completed within 15 days no extra cost will be paid toward hiring charges beyond 15 days . Moreover contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . In case any fault /burning /peeling of painting and any other defects occured in hired transformer the contractor shall have to made good himself from his own expenses. (ii) Contractor should check the available infrasturcture and to be sure regarding safety of hired transformer before installation . The rate quoted is deemed to be include transportation cost, earthing lead etc. (iii) In case the defective transformer not repaired & installed on its site within the specified period of 15 days from the date of handing over to contractor a panelty recovery @ Rs 1000 /- per day will be charged from his dues. During this period contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . No extra cost beyond 15 days will be paid to contractor on this account. Each Job-01

Taking down the unserviceable copper wound from transformer of capacity 160 KVA, opening top cover, and carrying out the following work complete all as specified and directed :- (a) Dismantling of all attachment viz breather assembly, conservator, oil temperature gauge, HT/LT bushing etc. and keeping aside for reuse. (b) Taking out the core with winding assembly. (c) Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (d) Cleaning of complete transformer tank, oil fins, conservator tank removing of sludge, and making the inside surface of tank dry by blowing of hot air and rectify ant leakages in tank or any welding work is reqd as directed and specified. Each job-1

(a) Repairs to the transformer of capacity 160 KVA as follows :- (i) Rewinding of HT/LT leg coil complete using copper wire /strip of appropriate gauge, size and turn as per existing with double paper coated insulation including all requisite insulating materials like packing sleeves, separator, tapes etc. heating, varnishing the core and winding assembly after framing up top and bottom steel structure of transformer all as specified and directed. (ii) Replacement of all insulating materials other than incorporated for rewinding of HT/LT coils as per existing. (iii) Fixing only HT procelain bushing with studs, nuts, washers 3 Nos. and LT procelain bushing with studs, nuts, and washers 4 Nos. and connection with primary and secondary windings and reconnecting with the main terminals as required and directed.

(iv) Fixing only breather assembly, conservator, oil temperature gauge after proper cleaning, minor repairs etc. as required and directed. (v) Replacement of all unserviceable gasket from top cover, HT/LT bushing with studs as directed by using rubberised gasket sheet 4.0mm/6.0mm thick duly pasted with suitable adhesive . (vi) Replacement of unserviceable bolts with new one and fixing of existing serviceable bolts, nuts, washers of different sizes and tightening properly. (vii) Repositioning of core and winding assembly inside the tank, assembling complete unit and making the transformer ready for filling oil and subsequent testing as directed. (b) The contractor shall give written warranty of one year from the certified date of completion for the repaired transformer. Note :- HT/LT leg coils and transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only. Each Job-01

Supply only HT coils with super enamelled copper wire /DPC of high quality duly matching with the existing guage and impedance.-90 Kgs

Supply only LT coils with super enamelled copper wire strip/DPC of high quality duly matching with the existing guage and impedance.- 72 Kgs

Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5 mm gap for filling in transformer or for topping up as required and directed.-240 Ltrs

Supply and fixing Thermometer of transformer capacity 160 KVA complete all as specified and directed. Each-01

Material & Labour for painting of transformer of capacity 160 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SL No, SM No, and capacity of transformer complete all as specified and directed.Each-01

Supply & fixing in replacement new off load tap changer assembly complete, making connection and testing complete of the transformer of cap 160 KVA .Each-01

Material & labour for replacement of oil level indicator of Transformer of any Cap all as directed by Engineer-in-charge. Each-01

Repair/ maintenance of Transformer 11/0.433 KV of Cap 315 KVA (Location :-HQ TG EME, CVD Depot ) as following:-

Disconnecting electrically and mechanically indoor/outdoor transformer capacity 315 KVA from HT/LT terminals and lowering down/getting out from 2/4/6 pole structure/plinth or inside sub station for major repairing/minor repair complete all as specified and directed .Each job -1

M&l for draining out complete transformer oil from transformer of 315 KVA capacity at site which found major repair and storing the oil in suitable container (container to be provided by the contractor to keep aside for re-use (after repair) and lifting of core assembly by opening of top cover and other items for inspection/examination of core assembly, to make it ready for transportation to carry out rewinding work in workshop. Each Job-1

M&L for transportation of unserviceable transformer of capacity upto 315 KVA from site to workshop and return back for re-installation it on original position/location after repairing from workshop (Rate is deemed to be inclusive of transportation, T&P, crane and man power) complete all as specified and directed .Each Job-1

M&L labour for alternative arrangement by hiring, transportation of transformer of capacity 315 KVA in place of unserviceable transformer on hire basis for 15 days including, installation, connecting and testing of transformer and return back after installation of repaired transformer complete all as specifed and directed. Note : (i) Repairing of transformer have to be completed within 15 days no extra cost will be paid toward hiring charges beyond 15 days . Moreover contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . In case any fault /burning /peeling of painting and any other defects occured in hired transformer the contractor shall have to made good himself from his own expenses. (ii) Contractor should check the available infrasturcture and to be sure regarding safety of hired transformer before installation . The rate quoted is deemed to be include transportation cost, earthing lead etc. (iii) In case the defective transformer not repaired & installed on its site within the specified period of 15 days from the date of handing over to contractor a panelty recovery @ Rs 1000 /- per day will be charged from his dues. During this period contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . No extra cost beyond 15 days will be paid to contractor on this account. Each Job-01

Taking down the unserviceable copper wound from transformer of capacity 315 KVA, opening top cover, and carrying out the following work complete all as specified and directed :- (a) Dismantling of all attachment viz breather assembly, conservator, oil temperature gauge, HT/LT bushing etc. and keeping aside for reuse. (b) Taking out the core with winding assembly. (c) Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (d) Cleaning of complete transformer tank, oil fins, conservator tank removing of sludge, and making the inside surface of tank dry by blowing of hot air and rectify ant leakages in tank or any welding work is reqd as directed and specified. (e) Painting of outside surfaces of transformer complete by means of spray machine as directed. Each job-1

(a) Repairs to the transformer of capacity 315 KVA as follows :- (i) Rewinding of HT/LT leg coil complete using copper wire /strip of appropriate gauge, size and turn as per existing with double paper coated insulation including all requisite insulating materials like packing sleeves, separator, tapes etc. heating, varnishing the core and winding assembly after framing up top and bottom steel structure of transformer all as specified and directed. (ii) Replacement of all insulating materials other than incorporated for rewinding of HT/LT coils as per existing. (iii) Fixing only HT procelain bushing with studs, nuts, washers 3 Nos. and LT procelain bushing with studs, nuts, and washers 4 Nos. and connection with primary and secondary windings and reconnecting with the main terminals as required and directed.

(iv) Fixing only breather assembly, conservator, oil temperature gauge after proper cleaning, minor repairs etc. as required and directed. (v) Replacement of all unserviceable gasket from top cover, HT/LT bushing with studs as directed by using rubberised gasket sheet 4.0mm/6.0mm thick duly pasted with suitable adhesive . (vi) Replacement of unserviceable bolts with new one and fixing of existing serviceable bolts, nuts, washers of different sizes and tightening properly. (vii) Repositioning of core and winding assembly inside the tank, assembling complete unit and making the transformer ready for filling oil and subsequent testing as directed. (b) The contractor shall give written warranty of one year from the certified date of completion for the repaired transformer. Note :- HT/LT leg coils and transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only. Each Job-01

Supply only HT coils with super enamelled copper wire /DPC of high quality duly matching with the existing guage and impedance.-135 Kgs

Supply only LT coils with super enamelled copper wire strip/DPC of high quality duly matching with the existing guage and impedance.- 105 Kgs

Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5 mm gap for filling in transformer or for topping up as required and directed.-320 Ltrs

Supply and fixing Thermometer of transformer capacity 315 KVA complete all as specified and directed. Each-01

Material & Labour for painting of transformer of capacity 315 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SL No, SM No, and capacity of transformer complete all as specified and directed.Each-01

Material & labour for replacement of oil level indicator of Transformer of any Cap all as directed by Engineer-in-charge. Each-01

Repair/ maintenance of Transformer 11/0.433 KV of Cap 400 KVA (Location :-Near P-108, kabul Line ) as following:-

Disconnecting electrically and mechanically indoor/outdoor transformer capacity 400 KVA from HT/LT terminals and lowering down/getting out from 2/4/6 pole structure/plinth or inside sub station for major repairing/minor repair complete all as specified and directed .Each job -1

M&l for draining out complete transformer oil from transformer of 400 KVA capacity at site which found major repair and storing the oil in suitable container (container to be provided by the contractor to keep aside for re-use (after repair) and lifting of core assembly by opening of top cover and other items for inspection/examination of core assembly, to make it ready for transportation to carry out rewinding work in workshop. Each Job-1

M&L for transportation of unserviceable transformer of capacity 400 KVA from site to workshop and return back for re-installation it on original position/location after repairing from workshop (Rate is deemed to be inclusive of transportation, T&P, crane and man power) complete all as specified and directed .Each Job-1

M&L labour for alternative arrangement by hiring, transportation of transformer of capacity 400 KVA in place of unserviceable transformer on hire basis for 15 days including, installation, connecting and testing of transformer and return back after installation of repaired transformer complete all as specifed and directed. Note : (i) Repairing of transformer have to be completed within 15 days no extra cost will be paid toward hiring charges beyond 15 days . Moreover contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . In case any fault /burning /peeling of painting and any other defects occured in hired transformer the contractor shall have to made good himself from his own expenses. (ii) Contractor should check the available infrasturcture and to be sure regarding safety of hired transformer before installation . The rate quoted is deemed to be include transportation cost, earthing lead etc. (iii) In case the defective transformer not repaired & installed on its site within the specified period of 15 days from the date of handing over to contractor a panelty recovery @ Rs 1000 /- per day will be charged from his dues. During this period contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . No extra cost beyond 15 days will be paid to contractor on this account. Each Job-01

Taking down the unserviceable copper wound from transformer of capacity upto 400 KVA, opening top cover, and carrying out the following work complete all as specified and directed :- (a) Dismantling of all attachment viz breather assembly, conservator, oil temperature gauge, HT/LT bushing etc. and keeping aside for reuse. (b) Taking out the core with winding assembly. (c) Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (d) Cleaning of complete transformer tank, oil fins, conservator tank removing of sludge, and making the inside surface of tank dry by blowing of hot air and rectify ant leakages in tank or any welding work is reqd as directed and specified.. Each job-1

(a) Repairs to the transformer of capacity 400 KVA as follows :- (i) Rewinding of HT/LT leg coil complete using copper wire /strip of appropriate gauge, size and turn as per existing with double paper coated insulation including all requisite insulating materials like packing sleeves, separator, tapes etc. heating, varnishing the core and winding assembly after framing up top and bottom steel structure of transformer all as specified and directed. (ii) Replacement of all insulating materials other than incorporated for rewinding of HT/LT coils as per existing. (iii) Fixing only HT procelain bushing with studs, nuts, washers 3 Nos. and LT procelain bushing with studs, nuts, and washers 4 Nos. and connection with primary and secondary windings and reconnecting with the main terminals as required and directed.

(iv) Fixing only breather assembly, conservator, oil temperature gauge after proper cleaning, minor repairs etc. as required and directed. (v) Replacement of all unserviceable gasket from top cover, HT/LT bushing with studs as directed by using rubberised gasket sheet 4.0mm/6.0mm thick duly pasted with suitable adhesive . (vi) Replacement of unserviceable bolts with new one and fixing of existing serviceable bolts, nuts, washers of different sizes and tightening properly. (vii) Repositioning of core and winding assembly inside the tank, assembling complete unit and making the transformer ready for filling oil and subsequent testing as directed. (b) The contractor shall give written warranty of one year from the certified date of completion for the repaired transformer. Note :- HT/LT leg coils and transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only. Each Job-01

Supply only HT coils with super enamelled copper wire /DPC of high quality duly matching with the existing guage and impedance.-165 Kgs

Supply only LT coils with super enamelled copper wire strip/DPC of high quality duly matching with the existing guage and impedance.-130 Kgs

Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5 mm gap for filling in transformer or for topping up as required and directed.-220 Ltrs

Supply and fixing Thermometer of transformer capacity 400 KVA complete all as specified and directed. Each-01

Material & Labour for painting of transformer of capacity 400 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SL No, SM No, and capacity of transformer complete all as specified and directed.Each Job-01

Material & labour for replacement of oil level indicator all as directed by Engineer-in-charge. Each-01

Repair/ maintenance of Transformer 11/0.433 KV of Cap 500 KVA (Location :-Near Pump House, Vikram Batra Vihar) as following:-

Disconnecting electrically and mechanically indoor/outdoor transformer capacity 500 KVA from HT/LT terminals and lowering down/getting out from 2/4/6 pole structure/plinth or inside sub station for major repairing/minor repair complete all as specified and directed .Each job -1

M&l for draining out complete transformer oil from transformer of 500 KVA capacity at site which found major repair and storing the oil in suitable container (container to be provided by the contractor to keep aside for re-use (after repair) and lifting of core assembly by opening of top cover and other items for inspection/examination of core assembly, to make it ready for transportation to carry out rewinding work in workshop. Each Job-1

M&L for transportation of unserviceable transformer of capacity 500 KVA from site to workshop and return back for re-installation it on original position/location after repairing from workshop (Rate is deemed to be inclusive of transportation, T&P, crane and man power) complete all as specified and directed .Each Job-1

M&L labour for alternative arrangement by hiring, transportation of transformer of capacity 500 KVA in place of unserviceable transformer on hire basis for 15 days including, installation, connecting and testing of transformer and return back after installation of repaired transformer complete all as specifed and directed. Note : (i) Repairing of transformer have to be completed within 15 days no extra cost will be paid toward hiring charges beyond 15 days . Moreover contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . In case any fault /burning /peeling of painting and any other defects occured in hired transformer the contractor shall have to made good himself from his own expenses. (ii) Contractor should check the available infrasturcture and to be sure regarding safety of hired transformer before installation . The rate quoted is deemed to be include transportation cost, earthing lead etc. (iii) In case the defective transformer not repaired & installed on its site within the specified period of 15 days from the date of handing over to contractor a panelty recovery @ Rs 1000 /- per day will be charged from his dues. During this period contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . No extra cost beyond 15 days will be paid to contractor on this account. Each Job-01

Taking down the unserviceable copper wound from transformer of capacity 500 KVA, opening top cover, and carrying out the following work complete all as specified and directed :- (a) Dismantling of all attachment viz breather assembly, conservator, oil temperature gauge, HT/LT bushing etc. and keeping aside for reuse. (b) Taking out the core with winding assembly. (c) Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (d) Cleaning of complete transformer tank, oil fins, conservator tank removing of sludge, and making the inside surface of tank dry by blowing of hot air and rectify ant leakages in tank or any welding work is reqd as directed and specified. Each job-1

(a) Repairs to the transformer of capacity 500 KVA as follows :- (i) Rewinding of HT/LT leg coil complete using copper wire /strip of appropriate gauge, size and turn as per existing with double paper coated insulation including all requisite insulating materials like packing sleeves, separator, tapes etc. heating, varnishing the core and winding assembly after framing up top and bottom steel structure of transformer all as specified and directed. (ii) Replacement of all insulating materials other than incorporated for rewinding of HT/LT coils as per existing. (iii) Fixing only HT procelain bushing with studs, nuts, washers 3 Nos. and LT procelain bushing with studs, nuts, and washers 4 Nos. and connection with primary and secondary windings and reconnecting with the main terminals as required and directed.

(iv) Fixing only breather assembly, conservator, oil temperature gauge after proper cleaning, minor repairs etc. as required and directed. (v) Replacement of all unserviceable gasket from top cover, HT/LT bushing with studa as directed by using rubberised gasket sheet 4.0mm/6.0mm thick duly pasted with suitable adhesive . (vi) Replacement of unserviceable bolts with new one and fixing of existing serviceable bolts, nuts, washers of different sizes and tightening properly. (vii) Repositioning of core and winding assembly inside the tank, assembling complete unit and making the transformer ready for filling oil and subsequent testing as directed. (b) The contractor shall give written warranty of one year from the certified date of completion for the repaired transformer. Note :- HT/LT leg coils and transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only. Each Job-01

Supply only HT coils with super enamelled copper wire /DPC of high quality duly matching with the existing guage and impedance.-188 Kgs

Supply only LT coils with super enamelled copper wire strip/DPC of high quality duly matching with the existing guage and impedance.- 150 Kgs

Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5 mm gap for filling in transformer or for topping up as required and directed.-460 Ltrs

Supply and fixing Thermometer of transformer capacity 500 KVA complete all as specified and directed. Each-01

Material & Labour for painting of transformer of capacity 500 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of SL No, SM No, and capacity of transformer complete all as specified and directed.Each Job-01

Material & labour for replacement of oil level indicator all as directed by Engineer-in-charge. Each-01

Disconnecting electrically and mechanically indoor/outdoor transformer capacity upto 630 KVA from HT/LT terminals and lowering down/getting out from 2/4/6 pole structure/plinth or inside sub station for major repairing/minor repair complete all as specified and directed .

Disconnecting electrically and mechanically indoor/outdoor transformers inside the substation or outdoor type on outside plinth of capacity 750 KVA to 1000 KVA, carefully for major/minor repairs complete all as specified and directed.

M&l for draining out complete transformer oil from transformer of upto 1000 KVA capacity at site which found major repair and storing the oil in suitable container (container to be provided by the contractor to keep aside for re-use (after repair) and lifting of core assembly by opening of top cover and other items for inspection/examination of core assembly, to make it ready for transportation to carry out rewinding work in workshop (Transportation charges shall be borne by the contractor against item No 9 & 10 of schedule ‘A’ here in after)

M&L for transportation of unserviceable transformer of capacity upto 630 KVA from site to workshop and return back for re-installation it on original position/location after repairing from workshop (Rate is deemed to be inclusive of transportation, T&P, crane and man power) complete all as specified and directed .

All as per item No 9 above but of capacity above 750 KVA to 1500 KVA

Shifting of transformer of capacity upto 1000 KVA from MES store Yard/Sub Stn (indoor/outdoor) for installation in another place as directed by Engr In Charge.

M&L labour for alternative arrangement by hiring, transportation of transformer of capacity upto 250 KVA in place of unserviceable transformer on hire basis for 15 days including, installation, connecting and testing of transformer and return back after installation of repaired transformer complete all as specifed and directed. Note : (i) Repairing of transformer have to be completed within 15 days no extra cost will be paid toward hiring charges beyond 15 days . Moreover contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . In case any fault /burning /peeling of painting and any other defects occured in hired transformer the contractor shall have to made good himself from his own expenses. (ii) Contractor should check the available infrasturcture and to be sure regarding safety of hired transformer before installation . The rate quoted is deemed to be include transportation cost, earthing lead etc. (iii) In case the defective transformer not repaired & installed on its site within the specified period of 15 days from the date of handing over to contractor a panelty recovery @ Rs 1000 /- per day will be charged from his dues. During this period contractor shall not be allowed to shift the hired transformer until it is replaced by the repaired transformer . No extra cost beyond 15 days will be paid to contractor on this account.

All as per item No 12 here-in -before but capacity of transformer 315 to 630 KVA.

All as per item No 12 here-in -before but capacity of transformer 750 to 1000 KVA.

Taking down the unserviceable copper wound from transformer of capacity upto 250 KVA, opening top cover, and carrying out the following work complete all as specified and directed :- (a) Dismantling of all attachment viz breather assembly, conservator, oil temperature gauge, HT/LT bushing etc. and keeping aside for reuse. (b) Taking out the core with winding assembly. (c) Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (d) Cleaning of complete transformer tank, oil fins, conservator tank removing of sludge, and making the inside surface of tank dry by blowing of hot air and rectify ant leakages in tank or any welding work is reqd as directed and specified.

All as per item No 15 here-in -before but capacity of transformer 315 to 630 KVA.

All as per item No 15 here-in -before but capacity of transformer 750 to 1100 KVA.

(a) Repairs to the transformer of capacity upto 250 KVA as follows :- (i) Rewinding of HT/LT leg coil complete using copper wire /strip of appropriate gauge, size and turn as per existing with double paper coated insulation including all requisite insulating materials like packing sleeves, separator, tapes etc. heating, varnishing the core and winding assembly after framing up top and bottom steel structure of transformer all as specified and directed. (ii) Replacement of all insulating materials other than incorporated for rewinding of HT/LT coils as per existing. (iii) Fixing only HT procelain bushing with studs, nuts, washers 3 Nos. and LT procelain bushing with studs, nuts, and washers 4 Nos. and connection with primary and secondary windings and reconnecting with the main terminals as required and directed. (iv) Fixing only breather assembly, conservator, oil temperature gauge after proper cleaning, minor repairs etc. as required and directed. (v) Replacement of all unserviceable gasket from top cover, HT/LT bushing with studa as directed by using rubberised gasket sheet 4.0mm/6.0mm thick duly pasted with suitable adhesive . (vi) Replacement of unserviceable bolts with new one and fixing of existing serviceable bolts, nuts, washers of different sizes and tightening properly. (vii) Repositioning of core and winding assembly inside the tank, assembling complete unit and making the transformer ready for filling oil and subsequent testing as directed. (b) The contractor shall give written warranty of one year from the certified date of completion for the repaired transformer. Note :- HT/LT leg coils and transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only.

All as per item No 18 here-in -before but capacity of transformer 315 to 630 KVA.

All as per item No 18 here-in -before but capacity of transformer 750 to 1000 KVA.

Supply only HT coils with super enamelled copper wire /DPC of high quality duly matching with the existing guage and impedance.

Supply only LT coils with super enamelled copper wire strip/DPC of high quality duly matching with the existing guage and impedance.

M&L for ON load Centrifuging and dehydration including filteration and cleaning of transformer oil by dehydration machine of 11/0.433 KV transformer at site and topping up deficient transformer oil including testing of samples before and after dehydration and filteration complete all as specified and directed. Note :- Deficient quantity of Transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only.

Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5 mm gap for filling in transformer or for topping up as required and directed

Supply only Porcelain Transformer bushing on LT (440 Volt) side, including brass stems conical bush for transformer of capacity upto 250 KVA as per existing size .

All as per Serial item No 25 here-in-before but capacity 315 KVA to 630 KVA

All as per Serial item No 25 here-in-before but capacity 750 KVA to 1000 KVA

Supply only Porcelain Transformer bushing on HT (11 KV) side, including brass stems conical bush and gasket for transformer of capacity upto 250 KVA as per existing size.

All as per Serial item No 28 here-in-before but 315 KVA to 630 KVA

All as per Serial item No 28 here-in-before but 750 KVA to 1500 KVA

Supplying and fixing in replacement, Silica Gel Breather assembly including vent pipe and Silica Gel for indoor/outdoor transformers, capacity upto 250 KVA complete all as specified and directed.

All as per Serial item No 31 here-in-before but capacity 315 KVA to 630 KVA

All as per Serial item No 31 here-in-before but capacity 750 KVA to 1500 KVA

Supply and fixing 3 mm thick Sheet glass (each not exceeding 0.9 Sqm) ordinary quality and glazing with oil putty on cabin of OTI and WTI gauge of transformer upto capacity 1000 KVA complete all as specified and directed. NOTE:- (For item no 25 to 34) Fixing charges of parts under these items are included under item no-42 to 44).

Supply and fixing Thermometer of transformer capacity upto 1000 KVA complete all as specified and directed.

Material & Labour for painting of transformer of capacity upto 250 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of Sl No ,SM No, and capacity of transformer complete all as specified and directed.

Material & Labour for painting of transformer of capacity 315 to 630 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of Sl No ,SM No, and capacity of transformer complete all as specified and directed.

Material & Labour for painting of transformer of capacity 750 to 1000 KVA with existing colour, with spraying machine, after cleaning, preparation of outer surface of transformer, including writing of Sl No ,SM No, and capacity of transformer complete all as specified and directed.

Earthing complete with galvanized steel earth plate electrode of size 60cmx60cmx6 mm thick, buried directly in ground (earth pit not less than 3.5 m below normal ground level) with top edge of earth plate not less than 2.5m below normal ground level, connected to galvanized iron strip 32X6 mm by means of electric arc welding of galvanised iron or steel as shown in electrical plate No 3 of SSR Part I, connected to earth test point and the equipment on the other side complete all as specified, including testing and commissioning complete all as directed. Note : (a) The unit rates quoted against this item shall be deemed to include the cost of excavation and earth work in any type of soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement as in cover & frame for pit, funnel, watering pipe 20 mm bore GI pipe light grade, protection pipe 40 mm bore GI pipe light grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI earthing and protection pipe upto 7.5 meter beyond the earth plates electrode.

M&L 32x6mm galvanised iron strip for earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in pipe or any other indicated situation for loop earthing etc complete all as specified and directed.

Disconnecting electrically & mechanically outdoor transforemrs upto 1000 KVA capacity, lowering down/getting out from plinth carefully for repairing /making of plinth of transformer and re- connecting electrically and mechanically after repairing/making of plinth or replacing MS channel , testing and commissioning complete all as specified and directed. Note:- (a) The rates quoted is deemed to be included for crane , men power and other items required for temp energization of transformer.

Disconnecting electrically & mechanically indoor/outdoor transforemrs upto 250 KVA capacity, lowering down/getting out from plinth, 4/6 pole Structure carefully for prevent/stoping for leakage of transformer oil, replacing the HT/LT porcelain Bushing or studs (at site/sub station) including opening of top cover, draining out transformer oil and other items and storing the oil in suitable container (container to be provided by the contractor to keep aside for re -use) including replacement of all unserviceable gasket, replacing the unsv HT/LT porcelain Bushing/studs after repairing/stoping of oil leakage the same re-connecting electrically and mechanically, testing complete all as specified and directed. Note.The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transformer oil, T&P, crane, opening/closing of top cover by unscrewing nut, bolts washers etc. The HT/LT porcelain Bushing , studs or gasket should be paid under relevent items of Sch as supply only.

All as per item No 42 above but of capacity 315 KVA to 630 KVA

All as per item No 42 above but of capacity 750 KVA to 1000 KVA

Supply and fill in replacement silica gel for transformer complete all as directed

Supply and fixing of Operating mechanism of 11 KV RMU for Earthing switch of VCB.

Supply and fixing of Operating mechanism of 11 KV RMU for spring charging of VCB

Supply of Operating mechanism interlock of 11 KV RMU for Operation + Earthing switch of VCB

Supply & fixing in replacement new off load tap changer assembly complete, making connection and testing complete of the transformer of following capacity .

63 KVA to 250 KVA

315 KVA to 630 KVA

750 KVA to 1000 KVA

Material & labour for replacement of oil level indicator of Transformer of any Cap all as directed by Engineer-in-charge

Plateform :- M&L for Brick Masonry ( Using sub class 'B' Brick) platform of size 3m x 3m x 1 m hight , built in CM 1:4 complete with excavation & earth work , PCC 1:4:8 type D-2 in foundation , sub class 'B' brick work in CM 1:, 15 mm thick rendering in CM 1:6 on sides and top of the brick work , upto 150 mm below ground level , supply and fixing of 02 Nos MS Chennels of suitable size for balancing of Transformer embedded in PCC 1:2:4 type B-1 up to 100 mm Thick RCC 1:3:6 with 10 mm steel bar includding 20 mm graded aggregate , including provn of stair case on one side complete all as specified and directed .

Supply installation & commissioning in replacement of 24V/40A Float Cum Boost Battery Charger unit including battery bank comprising 02 Nos of 12 Volts-100 AH sealed maintenance free battery. The CCCV battery charger consisting of copper wound, air cooled transformer, 01 Set single phase full wave bridge rectifier consisting of diodes and SCRs, liberally rated mounted on heat sink and complete with resistor/condenser network for surge supperssion . During auto float mode automatic changeover shall take place from float mode to boost mode and vice versa, 01 Set of solid state constant potential controller to stabilize the DC output voltage of the float cum boost charger, 01 No electronic controller , DC digital ammeter , DC digital voltmeter, Potentiometer , DC, MCB for reverse battery protection . The charger should have alarm annunciation with visual and audible alarm with manual reset facility for fuse fail alarm. Float cum boost battery charger and DC distribution board shall be housed in powder coated sheet steel cubicle with panels of 1.6mm thickness , louvers for ventilation , gland plate will be provided for cable entry from bottom . The battery charger shall be divided into two compartments. The upper compartment shall house the battery charger & DCDB with all necessary controls. The lower compartment shall be suitable for housing the batteries. Tech specification shall be as under:-

(a) Input working voltage-180 -270 Volts (b) Nominal Input Voltage - 230 V , AC , 50 Hz,1 (c) On load input power factor - > 0.8 (d) On load unit watt efficiencies-> 80% (e) No load losses of complete charge-< 10% (f) Ripple contents on the load (RMS)= 1% to 5% (g) Over load - 110% for 30 minutes and will give visual indication for over load condition. (h) Boost charging - 2.4 V/Cell . (j) Float charging -2.15 V/Cell (k) Float cum boost charging-Automatically changes from one state to another state as per battery condition and will give the visual indication for either float or boost based on charging mode. (l) Reverse polarity -No damage will caused . A visual indication for reverse polarity will appear with an audio alarm. (m) Short circuit-MCB protecton provided. Make of battery charger. Statcon/Sinetrac/Amar Raja Make of batteries. Exide/Amaron/Okaya

Material and labour for cleaning of 2/4/6 pole structure for loose filling under 2/4/6 pole structure / along the transformer plinth in side the fencing area after cleaning/surface excavation including taking out grass/herbs and filling of aggregate.

Material and labour for crushed stone aggregate of size 20mm, for loose filling under 2/4/6 pole structure / along the transformer plinth in side the fencing area after cleaning/ surface excavation and including making boundary around the 2/4/6 pole structure/ transformer fencing area using sub class B brick etc, complete all as specified.

S&F in replacement Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers,welding, bending cold or hot,drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of aluminium paint on 4/6 pole 11 KV HT structure

Material and Labour for disconnecting burnt end or portion of cable from Transformer / LT panel/pole, removing the cable from loop including necessary excavation & earth work in soft/loose soil relaying and reconnecting the cable by removing burnt portion of cable and preparing fresh terminals including fixing of new lugs for 95 Sqmm to 400 Sqmm 3½ core of LT cable including taping, complete all as specified and directed.

Material and labour for fixing in replacement of Aluminium straight bolt terminal cable to flat type suitable for transformer's LT/HT stud any size for fixing LT cables.

Material and labour for servicing of Buchloz Relay (Alarm System, tripping system, winding temp, oil temp etc) fixed on Outdoor / Indoor Transformer 11/0.433 KV of cap upto 500 to 1000 KVA complete all as specified and directed by Engr In charge.

Material and labour for design Fabricate, supply, commisssioning and running of 4 wheeled trolley 'fitted with towing hook on front axle turnable upto 30° and fixed rear axle suitable for mounting upto max 3.5 Ton transformer complete all as specified and directed by Engineer - in - Charge and as follows :- (i) (a) Chassis and under carriage including long and cross members. (b) Nylon Tyres of size 7.50 x16 with disc -04 Nos. (make-CEAT, JK , MRF) (c) Towing attachment should be spring loaded towing hook for universal attachment with any vehicle size 36 mm round . (d) MS wire mesh fencing of mesh size 75 mm x 75 mm dia of wire 4 mm above the trolley platform upto 2.0 mtr height all around with angle iron 50 x50 x6 mm support.(Note :- The top of the fencing also should be openable.01 x gate to be provided of size not less than 2.0 m x 0.75 m. Necessary hole to be provided for passing the HT/LT cable.) (e) Floor made out of 6 mm thick chequered MS Plate supplied by ICMS channel 150 x 75 mm all over the frame & intermediate supports/ pertitions of Trolley size 3.5 Mtr length x 2.0 Mts length.

(f) 4 Corner of the chassis of trolley will be fitted with slotted jack with cotter pin secured with chain . (g) Trolley should be suspension spring mounted . (h) Finishing with grinding and one coat of Zink-chromate (primer) and two coat of super shnthetic enamel paint of any shade as approved (j) Traingular drawbar on front made with male female angle and pipe bushes with eye hook towing arrangement. (k) Two nos of axles size 62 x62 mm squre with steel forged hubs and new tapper roller bearing. (ii) The trolley should have tool box with the following tools:- (a) Double ended spanner set of 12 Nos (Size-6-7,8-9,10-11, 12-13, 14-15, 16-17, 18-19, 20-22, 21-23,24-27,25-28,30-32) (b) Double ended but ring spanner set. (c ) Side cutting plier-01 No (d) Screw driver set of size (6,8,10 & 11 inch)-01 No (e) Adjustable Spanner of size 305 mm long-01 No (f) Hydrolic jack with iron wheel not less than 3 TON capacity. (Note:- for item No:- a to f) The tools should be Taparia Make.

Supplying , installation, testing and commissioning of 11 KV, 630 Amps having short circuit capacity 20kA/3-sec, Outdoor (IP54), RMU (Ring main unit) comprising of 02 Nos motorized operated Load Break Switch and 02 Nos 630 Amp Fixed-Type motorized spring-charging VCB electrolytic grade copper busbars all inside single, gas-filled, robotically welded stainless steel 304 (Non Ferrite Non Megnetic Grade) tank with min. thickness 3+0.5 mm, IP 67 Degree of Protection , internal-arc classified 20kA/1sec, on-site-repairable with site replacable bushing/coupling/mechanism, gas refilling etc. The enclosure shall have padlockable double-door access with anti-theft higes, fully covering the front facia and cable boxes to ensure fail-safe anti-theft protection. The unit alongwith Bus-connected, fixed-type Auxiliary transformer shall include the following along with all necessary accessories and fittings as required at site.

(A) 02 Nos. Incoming Load Break Switch module each consisting of following accessories :- (i) Each switching-unit is designed as a three position switch. This three function switch combines the functions of switch-disconnector and earthing switch. (ii) 11kV, 630A Load Break Switch with interlocked line-earthing scheme both short circuit current - 20kA/3-sec, Making Capacity - 50kAp -01 No (iii) Auxiliary contacts - 1NO + 1NC-01 No (iv) Spring-assisted snap-action motorized mechanism with un-inhibited operating shaft for emergency manual operation with integrated earthing switch -01 No

(v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 300 Sqmm , 3 Core , XLPE AL cable termination in live-condition. Each Set of 03 (vi) Right angle boots (push on type)-Each Set of 03 (vii) Arc proof cable covers having cable entry from bottom , front with Interlocking mechanism including earth switch -01 No (viii) Capacitive voltage indication fixed type system as per IEC61243 with LED - 01 Set (ix) Fault Passage Indicator - It is to be provided for each incomer load break unit, FPI with LED/digital display to be added for detection of cable fault-01 No (x) ON, OFF, EARTH mechanical indication on the front mimic of the panel - 01 No

(B) 02 Nos. Outgoing VCB module each consisting of following accessories :- (i) Each function-unit consists of a vacuum-circuit breaker in combination with a three position-switch.The three-position-switch fulfills the operation of the disconnector-function and earthing function. (ii) 11kV, 630A Fixed-Type VCB module with series disconnector cum earthing switch of short circuit breaking current/withstand - 20kA/3-sec, Making Capacity - 50kAp-01 No (iii) Aux. contacts - 1NO+1NC-01 No (iv) Stored-energy motorized high-endurance spring charging mechanism (M1+), with inbuilt spring-charging lever and mechanically latched ON/OFF push-buttons to allow handle-less and un-inhibited operation -01 No

(v) Cable terminals (site replacable Cable bushings situated not beyond 300mm from cable-cover to allow ease of access for installation/testing/replacement purposes) with double-door arrangement for enhanced safety (IP54+IP3X) interlocked to prevent access upto 11 KV , 185 Sqmm , 3 Core, XLPE AL cable termination in live-condition. Each Set of 3 (vi) Right angle boots (push on type)-Each set of 3 (vii) 3O/C + 1E/F self powered numerical protection relay with Low and High set for Over current and Earth Fault. Relay should have facility to display the maximum loaded phase current also.Relay shall record minimum 5 fault records with time stamping. Relay shall be communicable with RS 485 Port on MODBUS Protocol-01 No

(viii) Associated ring-core cast-resin insulated CTs 50/1 Amp , 2.5 VA, 10P10 for protection - Each Set of 3 (ix) Arc proof cable covers with self Interlocking mechanism with earth switch -01 No (x) Capacitive voltage indication fixed type system as per IEC61243 with LED -01 No (xi) Push button for breaker trip (xii) Shunt trip coil 24V DC - 01 (xiii) ON, OFF, TRIP mechanical indication on the front mimic of the panel - 01. (xiv) Emergency Trip Push Button - 01.

(C) 01 No. Bus-connected, fixed-type Auxiliary transformer to provide required aux. supply and metering consisting of following accessories :- (i) 1-Ph (11kV/rt3):230VAC, 500VA Auxiliary transformer-01 No (ii) 2x12 Volt DC battery-01 Set (iii) Battery charger-01 No (iv) HRC fuse-links for primary side isolation and AC/DC MCBs for secondary isolation-01 Set (v) Voltmeter & RYB LED Indications to confirm AC/DC supply availability-01 Set (vi) Anti-condensation space-heater-01 No (vii) CFL lamp for illumination and 3-pin socket with switch -01 No

(D) Additional equipment deliverd separately or mounted seperately :- (i) Operationg Handle for Manual Isolator/Disconnector/Earthing Operation-02 Nos (ii) Standard Manometer -01 No (iii) Operation and Maintenance Manual -01 No (iv) Installation & Commissioning Manual -01 No (v) Cable clamping provision (standard) -01No

Note:- (i) It is preferable to have all feeder-switches inside single stainless steel compartment with incomer feeders at the extremities to prevent chances of failure due to plug-in coupling arrangement. (ii) Necessay interclocking arrangement shall be provided for safety and operations (iii) Above switchgear shall confirm to relevant IEC (62271-200) for design, manufacturing and internal arc compliance. Any claims towards internal arc compliance, number of mechanical/electrical/short-circuit operations, gas-leakage rates etc. shall not be accepted unless proven via type-test reports of model being offered. (iv) Cost of provn of plinth for RMU as per OEM drawing is deemed to be included in the cost.

Supply, laying, jointing, testing and commissioning in replacment LT underground cables 1100 volts grade, PVC insulated XLPE and PVC sheathed, heavy duty armoured, with multistranded aluminium conductors, IS-1554 marked of size 400 Sqmm 1 core , laid in trenches/duct complete all as specified and directed.

All as per srl item No 62 here-in-before but of size 240 Sqmm single core

Note : contractor should procure and provide 50 % of the material as listed above within 15 days of the placing of work order and shall be verified by the Eng-in-charge

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MV Engineers And Contractors