REPAIR AND MAINT OF TRANSFORMERS OF DIFFERENT CAPACITY AND CAPACITOR BANKS IN ZONE-A AND ZONE-C AT DEF LAB JODHPUR

Amount

Taking out Transformer from its Position for repair / servicing / rewinding of capacity 63 KVA , 33/11 Volts, by disconnecting /opening HV, LV Electrical connections, earthing connections along with following other works.

(a) Transporting transformer to workshop and back to site by making necessary arrangements of T&P (crane, recovery, vehicle, tripoid to be arranged by firm) as directed. (b) Opening of transformer top cover by extraction ,removing of serviceable - unserviceable nuts bolts and washers. (c) Draining out of transformer oil and keeping in safe custody for reuse. (d). Lifting primary coil (HT) and secondary coil (LT), dismantaling of transformer complete part by part carefully , and display all the parts without damaging any portion and ascertain the serviceability of parts and quantam of repairs involved in presence of Engineer-in-charge. (e) Refilling topping up of transformer oil after dehyderation and filteration in transformer. (f). Reassembling the transformer complete with all existing serviceable parts, and new parts as required. (g) Reinstall the Transformer at site in position as directed after repair connecting HV, LV electrical connections, earthing connections and testing to entire satisfaction on load complete all as specified and directed by Engineer-in-Charge. Note:- (a) Rewinding, reinsulation of Primary and secondary coil with copper winding wire, dehydration and filteration of transformer oil, and replacement of unserviceable spares shall be measured and paid seperately under appropriate Item of schedule. (b) Renewal of adequate size Nut, bolts & washers of transformer top cover shall deemed to be included in UNIT RATE QUOATED.

Taking out Transformer from its Position for repair / servicing / rewinding of capacity 100 KVA , 33/11 Volts, by disconnecting /opening HV, LV Electrical connections, earthing connections along with following other works.

(a) Transporting transformer to workshop and back to site by making necessary arrangements of T&P (crane, recovery, vehicle, tripoid to be arranged by firm ) as directed. (b). Opening of transformer top cover by extraction ,removing of serviceable - unserviceable nuts bolts and washers. (c).Draining out of transformer oil and keeping in safe custody for reuse. (d). Lifting primary coil (HT) and secondary coil (LT) , dismantaling of transformer complete part by part carefully , and display all the parts without damaging any portion and ascertain the serviceability of parts and quantam of repairs involved in presence of Engineer-in-charge. (e) Refilling topping up of transformer oil after dehyderation and filteration in transformer. (f). Reassembling the transformer complete with all existing serviceable parts, and new parts as required. (g) Reinstall the Transformer at site in position as directed after repair connecting HV, LV electrical connections, earthing connections and testing to entire satisfaction on load complete all as specified and directed by Engineer-in-Charge.. Note:- (a) Rewinding , reinsulation of Primary and secondary coil with copper winding wire, dehydration and filteration of transformer oil, and replacement of unserviceable spares shall be measured and paid seperately under appropriate Item of schedule. (b) Renewal of adequate size Nut, bolts & washers of transformer top cover shall deemed to be included in UNIT RATE QUOATED.

Taking out Transformer from its Position for repair / servicing / rewinding of capacity 160 KVA , 33/11 Volts, by disconnecting /opening HV, LV Electrical connections, earthing connections along with following other works.

(a) Transporting transformer to workshop and back to site by making necessary arrangements of T&P (crane, recovery, vehicle, tripoid to be arranged by firm ) as directed. (b). Opening of transformer top cover by extraction ,removing of serviceable - unserviceable nuts bolts and washers. (c). Draining out of transformer oil and keeping in safe custody for reuse (d). Lifting primary coil (HT) and secondary coil (LT) , dismantaling of transformer complete part by part carefully, and display all the parts without damaging any portion and ascertain the serviceability of parts and quantam of repairs involved in presence of Engineer-in-charge. (e) Refilling topping up of transformer oil after dehyderation and filteration in transformer. (f). Reassembling the transformer complete with all existing serviceable parts, and new parts as required. (g) Reinstall the Transformer at site in position as directed after repair connecting HV, LV electrical connections, earthing connections and testing to entire satisfaction on load complete all as specified and directed by Engineer-in-Charge.. Note:- (a) Rewinding, reinsulation of Primary and secondary coil with copper winding wire, dehydration and filteration of transformer oil, and replacement of unserviceable spares shall be measured and paid seperately under appropriate Item of schedule. (b) Renewal of adequate size Nut, bolts & washers of transformer top cover shall deemed to be included in UNIT RATE QUOATED.

Taking out Transformer from its Position for repair / servicing / rewinding of capacity 250 KVA , 33/11 Volts, by disconnecting /opening HV, LV Electrical connections, earthing connections along with following other works.

(a) Transporting transformer to workshop and back to site by making necessary arrangements of T&P (crane, recovery, vehicle, tripoid to be arranged by firm) as directed. (b). Opening of transformer top cover by extraction ,removing of serviceable - unserviceable nuts bolts and washers. (c).Draining out of transformer oil and keeping in safe custody for reuse. d). Lifting primary coil (HT) and secondary coil (LT) , dismantaling of transformer complete part by part carefully, and display all the parts without damaging any portion and ascertain the serviceability of parts and quantam of repairs involved in presence od Engineer-incharge. (e) Refilling topping up of transformer oil after dehyderation and filteration in transformer. (f). Reassembling the transformer complete with all existing serviceable parts, and new parts as required. g) Reinstall the Transformer at site in position as directed after repair connecting HV, LV electrical connections, earthing connections and testing to entire satisfaction on load complete all as specified and directed by Engineer-in-Charge.. Note:- (a) Rewinding, reinsulation of Primary and secondary coil with copper winding wire, dehydration and filteration of transformer oil, and replacement of unserviceable spares shall be measured and paid seperately under appropriate Item of schedule. (b) Renewal of adequate size Nut, bolts & washers of transformer top cover shall deemed to be included in UNIT RATE QUOATED.

Taking out Transformer from its Position for repair / servicing / rewinding of capacity 315 KVA , 33/11 Volts, by disconnecting /opening HV, LV Electrical connections, earthing connections along with following other works.

(a) Transporting transformer to workshop and back to site by making necessary arrangements of T&P (crane, recovery, vehicle, tripoid to be arranged by firm ) as directed. (b). Opening of transformer top cover by extraction ,removing of serviceable - unserviceable nuts bolts and washers. (c). Draining out of transformer oil and keeping in safe custody for reuse. (d). Lifting primary coil (HT) and secondary coil (LT) , dismantaling of transformer complete part by part carefully , and display all the parts without damaging any portion and ascertain the serviceability of parts and quantam of repairs involved. (e) Refilling topping up of transformer oil after dehyderation and filteration in transformer. (f). Reassembling the transformer complete with all existing serviceable parts, and new parts as requied. (g) Reinstall the Transformer at site in position as directed after repair connecting HV, LV electrical connections, earthing connections and testing to entire satisfaction on load complete all as specified and directed by Engineer-in-Charge.. Note:- (a) Rewinding , reinsulation of Primary and secondary coil with copper winding wire, dehydration and filteration of transformer oil, and replacement of unserviceable spares shall be measured and paid seperately under appropriate Item of schedule. (b) Renewal of adequate size Nut, bolts & washers of transformer top cover shall deemed to be included in UNIT RATE QUOATED.

Taking out Transformer from its Position for repair / servicing / rewinding of capacity 400 KVA , 33/11 Volts, by disconnecting /opening HV, LV Electrical connections, earthing connections along with following other works.

(a) Transporting transformer to workshop and back to site by making necessary arrangements of T&P (crane, recovery, vehicle, tripoid to be arranged by firm ) as directed. (b). Opening of transformer top cover by extraction ,removing of serviceable - unserviceable nuts bolts and washers. (c). Draining out of transformer oil and keeping in safe custody for reuse. (d). Lifting primary coil (HT) and secondary coil (LT) , dismantaling of transformer complete part by part carefully , and display all the parts without damaging any portion and ascertain the serviceability of parts and quantam of repairs involved in presence of Engineer-in-charge. (e) Refilling topping up of transformer oil after dehyderation and filteration in transformer. (f). Reassembling the transformer complete with all existing serviceable parts, and new parts as required . (g) Reinstall the Transformer at site in position as directed after repair connecting HV, LV electrical connections, earthing connections and testing to entire satisfaction on load complete all as specified and directed by Engineer-in-Charge.. Note:- (a) Rewinding , reinsulation of Primary and secondary coil with copper winding wire, dehydration and filteration of transformer oil, and replacement of unserviceable spares shall be measured and paid seperately under appropriate Item of schedule. (b) Renewal of adequate size Nut, bolts & washers of transformer top cover shall deemed to be included in UNIT RATE QUOATED.

M&L for rewinding HT coil of 33/ 11 KV , 11/ 0433 KV Transformer any capacity using proper size DPC copper wire and insulation material , heating coils in heat chamber after rewinding including taking out carefully burnt unserviceable copper winding of coils complete all as specified and directed by Engineer-in-Charge.

M&L for rewinding LT coil of 33/ 11 KV , 11/ 0433 KV Transformer any capacity using proper size DPC copper wire and insulation material , heating coils in heat chamber after rewinding including taking out carefully burnt unserviceable copper winding of coils complete all as specified and directed by Engineer-in-Charge.

Repair /servicing to transformer at site of capacity 63, 250, 400 kva installed on Plinth / Pole mounted structure by opening top cover & replacing unserviceable spares / components of transformer ,without lifting core assembely reassembling after repair & testing complete all as specified and directed by Engr-in-Charge. Note:- (a) Rewinding of transformer HT/LT Coils shall be carried out from ISO certified 2008 Coy. (b) Dehydration and filteration of transformer oil, and replacement of unserviceable spares shall be measured and paid seperately under appropriate Item of schedule however cost of renewal of Nut, bolts & washers shall deemed to be included in UNIT RATE QUOATED.

Supply only Ceramic Bush insulators on LT side as per existing size, shape and specification for capacity 63 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only Ceramic Bush insulators on LT side as per existing size, shape and specification for capacity 100 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only Ceramic Bush insulators on LT side as per existing size, shape and specification for capacity 250 to 400 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only brass spindle on LT side as per existing size, shape and specification for capacity 63 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only brass spindle on LT side as per existing size, shape and specification for capacity 100 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only brass spindle on LT side as per existing size, shape and specification for capacity 250 to 400 KVA , 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only cork sheet gasket (set of four) for ceramic bushing on LT side as per existing size, shape and specification complete for capacity 63 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only cork sheet gasket (set of four) for ceramic bushing on LT side as per existing size, shape and specification complete for capacity 100 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only cork sheet gasket (set of four) for ceramic bushing on LT side as per existing size, shape and specification complete for capacity 250 to 400 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only Ceramic Bush insulators on HT side as per existing size, shape and specification for capacity 63 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only Ceramic Bush insulators on HT side as per existing size, shape and specification for capacity 100 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only Ceramic Bush insulators on HT side as per existing size, shape and specification for capacity 250 to 400 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only brass spindle on HT side as per existing size, shape and specification for capacity 63 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only brass spindle on HT side as per existing size, shape and specification for capacity 100 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only brass spindle on HT side as per existing size, shape and specification for capacity 250 to 400 KVA , 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only top cover gasket set as per existing size, shape and specification complete for capacity 63 KVA , 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only top cover gasket set as per existing size, shape and specification complete for capacity 100 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only top cover gasket set as per existing size, shape and specification complete for capacity 250 to 400 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only set of gasket (rubberized cork) as per existing size, shape and specification complete for capacity 63 KVA , 33/11 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only set of gasket (rubberized cork ) as per existing size, shape and specification complete for capacity 100 to 160 KVA , 33/11 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only breather assembly as per existing size, shape and specification complete for capacity 63 KVA , 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only breather assembly as per existing size, shape and specification complete for capacity 100 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only breather assembly as per existing size, shape and specification complete for capacity 250 to 400 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only Tap Changer as per existing size, shape and specification complete for capacity 63 KVA , 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only Tap Changer as per existing size, shape and specification complete for capacity 100 to 160 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Supply only Tap Changer as per existing size, shape and specification complete for capacity 250 to 400 KVA, 11/0.433 Volts transformers complete all as specified and directed by Engineer-in-Charge.

Dehydration and filtration of existing transformer oil of transformers capacity ranging from 63 KVA to 400 KVA on site at different locations without disturbing the power supply system with filtration machine and heating system in order to achieve Di-electric strength of oil 40KV minimum at 2.5 mm gap complete all as specified and directed by Engineer-in-Charge.

Supply & filling up of transformer oil conforming to IS -335 of 1993 as in topping up / replacement up to desired level of transformer oil capacity complete all as specified and directed by Engineer-in-Charge. [Note: Dielectric strength of oil should not be less than 42 KV/cm complete all as specified and directed.] (Make : GULF/POWER OIL or equivalent as approved by AGE)

Supply and fixing as in replacement Temperature Guage as per existing size, shape and specification complete for capacity 63 KVA, 11/0.433 Volts transformers including taking down old unserviceable complete all as specified and directed by Engineer-in-Charge.

Supply and fixing as in replacement Temperature Guage Changer as per existing size, shape and specification complete for capacity 100 to 160 KVA, 11/0.433 Volts transformers including taking down old unserviceable complete all as specified and directed by Engineer-in-Charge.

Supply and fixing as in replacement Temperature Guage as per existing size, shape and specification complete for capacity 250 to 400 KVA, 11/0.433 Volts transformers complete including taking down old unserviceable complete all as specified and directed by Engineer-in-Charge.

Supply and fixing as in replacement pair of arcing horns suitable for transformer capacity 63 to 400 KVA, 11/0.433 Volts including taking down old unserviceable complete all as specified and directed by Engineer-in-Charge.

Supply and replacing silica gel in crystal form of breather assembly of transformer capacity upto 63 to 400 KVA at installed site complete including taking down old unserviceable complete all as specified and directed by Engineer-in-Charge.

Material & Labour for 32 mm dia gunmetal drain valve of transformer as per existing one including taking down old unserviceable complete all as specified and directed by Engineer-in-Charge.

Material & Labour for 25 mm dia gunmetal drain valve of transformer as per existing one including taking down old unserviceable complete all as specified and directed by Engineer-in-Charge.

Material & Labour for 20 mm dia gunmetal drain valve of transformer as per existing one including taking down old unserviceable complete all as specified and directed by Engineer-in-Charge.

M&L for preparation of old painted steel or iron surfaces of transformer of 63 to 160 KVA , 11/0.433 Volts capacity transformers by scrapping with steel wire brush/scrapper emery paper, etc. and applying two coats of synthetic enamel smoke grey paint over a coat of red oxide primer (painting shall be done by spray machine) including writing of SM No, MES No etc. at prominent place/location of transformer with black synthetic enamel thick paint in white back ground complete all as specified and directed by Engineer-in-Charge.

M&L for preparation of old painted steel or iron surfaces of transformer of 250 to 400 KVA , 11/0.433 Volts capacity transformers by scrapping with steel wire brush/scrapper emery paper, etc. and applying two coats of synthetic enamel smoke grey paint over a coat of red oxide primer (painting shall be done by spray machine) including writing of SM No, MES No etc. at prominent place/location of transformer with black synthetic enamel thick paint in white back ground complete all as specified and directed by Engineer-in-Charge.

M&L Earthing complete with galvanized steel earth plate electrode 60cm x 60cm x 6mm thick buried directly in ground (earth pit not less than 2.25 metre deep below ground level) with top edge of plate not less than 1.5 metre below normal ground level connected to galvanized earth strip 32x6 mm by means of bolts, nuts, check nuts and washers of galvanized iron or steel all as shown in electrical plate No 3 of MES SSR Part-I connected to main switch board or main control board all as specified and testing on completion including provision of earth strip protected by galvanized iron 40 mm dia light grade pipe and watering pipe shall be 20 mm bore light grade including all excavation and earth work in any type of soil, PCC pit with pre-cast RCC cover, charcoal/salt, funnel etc including taking out old un-serviceable earthing, complete all as specified and directed by Engineer-in-Charge. Note: (i) The concrete pit shall be PCC 1:3:6 type C-1, 40mm thick pre-cast cover slab of RCC (1:2:4) type B-1 using 20mm graded crushed stone aggregate, reinforced with 8mm TMT bars @ 10 cm c/c on both sides with suitable cast iron handle shall be provided in lieu of cast iron cover shown in electrical plate No. 3 of MES SSR Part-I., (ii) Item includes the cost of GI pipe up to 7.5m for protection of earth strip and 32X6 mm GI strip up to 7.50 m length (iii) PCC pit shall be provided at least 500 mm away from the pit and not on the earth pit itself and the extra cost of additional length of watering pipe, bends, elbow etc shall be deemed included in the unit rate.

Dismantling unserviceable Lightning Arresters with all fittings of any description, complete all as specified and as directed by Engineer-in-charge.

M &L Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 KA , 11000V grade complete all as specified and directed by Engineer-in-Charge.

Dismantling Pin/Disc type insulators with all fittings of any description,Discharge capacity and size, complete all as specified and directed by Engineer-in-Charge.

M&L pin type,porcelain,vitreous,white,brown or green insulator including one galvanised mild steel spindle,two galvanised iron washers and one galvanised iron nut, 150mm Height, 150mm dia for 11000 Volt Grade, complete all as specified and directed by Engineer-in-Charge.

M &L Disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type white, brown or green, ‘two-in-series assembly’ for tension with tension clamps for conductors, working pressure 11000 Volt, complete all as specified and directed by Engineer-in-Charge.

Fixing only pin type,porcelain,vitreous,white,brown or green insulator including one galvanised mild steel spindle,two galvanised iron washers and one galvanised iron nut, 150mm Height, 150mm dia for 11000 Volt Grade, complete all as specified and directed by Engineer-in-Charge. Note:- Workable Insulators obtained from dismantling used in this item.

Dismantling Air Break Gang operated switches,Vertical/Horizontal Mounted including insulators and operating mechanism for repair/replacement of broken/worn out component and insulators or carrying to MES store or credited to contractor, complete all as specified and directed by Engineer-in-Charge.

M & L Switch Air Break, Gang operated, Triple Pole, Mechanically Operated, mounted on Insulators and Steel Frame with Operating Mechanism worked from ground level,current rating upto 200 Amps complete all as specified and directed by Engineer-in-Charge.

M & L Switch Air Break, Gang operated, Triple Pole, Mechanically Operated, mounted on Insulators and Steel Frame with Operating Mechanism worked from ground level,current rating upto 400 Amps complete all as specified and directed by Engineer-in-Charge.

Repairs GOD and Drop out fuse unit set 9/12 insulator type complete including replacement of all UNSV jumpers, aluminium lugs, nut bolts ,changing of U clips of horizental/vertical clamps including necessary adjustment complete all as specified and directed by Engineer-in-Charge.

SHOBHIT BUILDERS