REPLACEMENT OF TRANSFORMER WITH ENERGYD EFFICENT TRANSFORMER AT PRAYAGRAJ UNDER GE (WEST) PRAYAGRAJ

Supply, install, connecting, testing and commissioning of outdoor type, Transformer 500 KVA capacity step down IS -1180 Part I/2014 (revised) amendment No. 1,2,3 & 4 in SSR Part -I.( Energy efficiency level -3) BEE Star rated energy saving with dual ratio on HT side 11/0.433 KV at no load, 3 phase , 4 wire AC, 50 Hz, AC double core type copper wound ,oil immersed ,air natural oil natural cooled with external cooling tubes ,transformer delta connection on HV Side and star connection on LV side in accordance with vector symbol DYN-II with neutral brought out on secondary side and having tapping in step of + 7.5% step of 2.5% each to be changed by means of hand operated off load tap changing gear arrangement including first fill of transformer oil as per IS -335 and including all fitting /accessories as specified. Transformer should have cable box on LT side and brass bushing on HT side, oil temperature gauge ,dehydrating breather with first fill of dehydrating silica gel ,oil conservator tank ,explosion vent ,rating and terminal marking plate, oil level gauge ,oil drain and filter valve ,independent earth point and neutral fittings ,earth terminal at body base ,voltage regulation should be as per IS and limit of temp rise after continuous full load run as specified in SSR part -I and IS - 1180 Part I (revised) shall be stand by adjusted to suit the maximum ambient temp prevailing at site all as specified comprising with the following specification :-

(a) Earthing terminal and rating diagram plate (b) Air release device (c) Oil filling inlet pipe with plug (d) Drain outlet pipe with brass gate valve with dummy plug (e) Conservator with level gauge (f) Silica gel with breather (g) First Oil fill up to the recommended level by the manufacturer with new oil conforming to IS 335 (h) Type of connection Delta/Star (j) Type cooling : ONAN (k) Vector Group : DYN 11 (l) Type of connecting arrangement cable termination boxes on HT side and on LT side. (m) Oil temperature gauge 100mm dia dial type. (n) Foundation tob construct as per Company recommendation with PCC block platform of suitable size in cement mortar 1:6 with PCC foundation 1:4:8 type D-2 using 40mm graded stone aggregate, PCC 1:2:4 type B1 using 20mm graded stone aggregate 20cm thick coping over brick work plastering to exposed surface platform.

All as per srl item No 1 here in before but of capacity 400 KVA, complete all as specified and directed by Engineer-in-Charge.

All as per srl item No 1 here in before but of capacity 315 KVA, complete all as specified and directed by Engineer-in-Charge.

All as per srl item No 1 here in before but of capacity 200 KVA, complete all as specified and directed by Engineer-in-Charge.

All as per srl item No 1 here in before but of capacity 160 KVA, complete all as specified and directed by Engineer-in-Charge.

All as per srl item No 1 here in before but of capacity 100 KVA, complete all as specified and directed by Engineer-in-Charge.

Taking down/dismantling of transformers from plinth/pole/substation including disconnecting all necessary connections HT, LT, earthings etc at New Cantt Allahabad and depositing to MES store yard, complete all as specified and directed by Engr-in-Charge.

Supply and install (in replacement) Air breaker switch gang operated triple pole, mechanically operated mounted on 12 Nos insulator and steel frame, with operating mechanism worked from ground level for current rating upto 400 Amps, 11 KV voltage working pressure conforming to IS-1818/72 and 9921/85 complete including DO fuses of 200/400 amps barrel fuses with knife arrangements made of copper or brass complete, manufacture in original with operating handle, fixing arrangement, operating rod, etc all as specified and directed by Engr-in-Charge.

Supply, installations, testing and commissioning of CPRI approved factory made LT Outdoor cubical type panel board with neoprene rubber gasket and locking arrangement, dust, weather and vermin proof ,foundation mounted type self ventilation with wire mesh, totally enclosed bus bar chamber fully comparted type, both side openable hinged independent door for each compartment with locking arrangement and common openable hinged door from rear side of suitable size fabricated out of not less then 3.00 mm thick CRCA sheet with double door shutter and locking arrangements, cables trays, cable lugs, cable gland etc. including provision for taking out incoming and outgoing cables duly marked with elevated letter plates of appropriate size for each feeder cables, danger board etc sheet duly painted with both side locking arrangement with pad locks process,415 V,TPN,50Hz both side properly welded MS channels supported with channel frame of suitable size at bottom of panel base and connecting the incoming/outgoing feeder by providing brass cable glands and Lugs complete all as specified and directed comprising of followings accessories :-

(Note :-Cost of PCC foundation all as directed for suitable size and earth work are deemed to be included in quoted rate.) (a) High conductivity aluminium bus bar (Set of 4 strips), 4 Nos TPN not less then 1.5 time of incoming MCCB rating for Phases and not less then 1.0 times of incoming MCCB of suitable rating ,(RYB) for phase and 1 No for neutral mounted on DMC support with heat shrink sleeve-1 Set. (b) Phase indication lamp, LED type(set of 3) -1 Set (c) Ammeter analog type having measuring range (0-500) Amps with CTs etc including rotary switch to measure load of each phase (d) Volt meter having measuring range (0-500) volt with rotary switch to measure voltage of phase R.Y.B (e) Danger Notice plate for LT all side to be fixed (f) Incoming -ACB 4 Pole 800 Amp 415 volt manual draw out type with 50 KA breaking capacity, Isc=100% Icu & spreader both side as Incoming control device: 01 Nos. (g) Outgoing (i) MCCB 4 Pole 400 Amp 415 volt thermal adjustable, type with 36 KA breaking capacity Isc=100% Icu & spreader both side as outgoing control device : 01 No. (ii) MCCB 4 Pole 315 Amp 415 volt thermal adjustable, type with 36 KA breaking capacity Isc=100% Icu & spreader both side as outgoing control device : 01 No. (iii) MCCB 4 Pole 250 Amp 415 volt thermal adjustable, type with 36 KA breaking capacity Isc=100% Icu & spreader both side as outgoing control device : 03 Nos. (iv) MCCB 4 Pole 160 Amp 415 volt thermal adjustable, type with 36 KA breaking capacity Isc=100% Icu & spreader both side as outgoing control device : 01 No.

Supply, installations, testing and commissioning of CPRI approved factory made LT Outdoor cubical type panel board with neoprene rubber gasket and locking arrangement, dust, weather and vermin proof ,foundation mounted type self ventilation with wire mesh, totally enclosed bus bar chamber fully comparted type, both side openable hinged independent door for each compartment with locking arrangement and common openable hinged door from rear side of suitable size fabricated out of not less then 3.00 mm thick CRCA sheet with double door shutter and locking arrangements, cables trays, cable lugs, cable gland etc. including provision for taking out incoming and outgoing cables duly marked with elevated letter plates of appropriate size for each feeder cables, danger board etc sheet duly painted with both side locking arrangement with pad locks process,415 V,TPN,50Hz both side properly welded MS channels supported with channel frame of suitable size at bottom of panel base and connecting the incoming / outgoing feeder by providing brass cable glands and Lugs complete all as specified and directed comprising of followings accessories :-

(Note :- Cost of PCC foundation and earth work are deemed to be included in quoted rate.) (a) High conductivity aluminium bus bar (Set of 4 strips), 4 Nos TPN not less then 1.5 time of incoming MCCB rating for Phases and not less then 1.0 times of incoming MCCB of suitable rating, (RYB) for phase and 1 No for neutral mounted on DMC support with heat shrink sleeve-1 Set. (b) Phase indication lamp, LED type (set of 3) -1 Set (c) Ammeter analog type having measuring range (0-500) Amps with CTs etc including rotary switch to measure load of each phase : (d) Volt meter having measuring range (0-500) volt with rotary switch to measure voltage of phase R.Y.B (e) Mounting of panel including earth work as required PCC (1:3:6) type D-2 using 20 mm graded stone aggregate & plastering with (1:4 ) cement sand mortar etc complete. (f) Incoming - MCCB 4 Pole 315 Amp 415 volt manual draw out type with 36 KA breaking capacity Isc=100% Icu & spreader both side as Incoming control device : 01 No (h) Outgoing - (i) MCCB 4 Pole 160 Amp 415 volt thermal adjustable ,type with 36 KA breaking capacity Isc=100% Icu & spreader both side as outgoing control device : 04Nos. (ii) MCCB 4 Pole 100 Amp 415 volt thermal adjustable ,type with 36 KA breaking capacity Isc=100% Icu & spreader both side as outgoing control device : 01 No.

Supply, installations, testing and commissioning of CPRI approved factory made LT Outdoor cubical type panel board with neoprene rubber gasket and locking arrangement, dust, weather and vermin proof , foundation mounted type self ventilation with wire mesh, totally enclosed bus bar chamber fully comparted type, both side openable hinged independent door for each compartment with locking arrangement and common openable hinged door from rear side of suitable size fabricated out of not less then 3.00 mm thick CRCA sheet with double door shutter and locking arrangements, cables trays, cable lugs, cable gland etc. including provision for taking out incoming and outgoing cables duly marked with relevetted letter plates of appropriate size for each feeder cables, danger board etc sheet duly painted with both side locking arrangement with pad locks process,415 V,TPN,50Hz both side properly welded MS channels supported with channel frame of suitable size at bottom of panel base and connecting the incoming /outgoing feeder by providing brass cable glands and Lugs complete all as specified and directed comprising of followings accessories :-

(Note :-Cost of PCC foundation all as directed for suitable size and earth work are deemed to be included in quoted rate.) (a) High conductivity aluminium bus bar (Set of 4 strips), 4 Nos TPN not less then 1.5 time of incoming MCCB rating for Phases and not less then 1.0 times of incoming MCCB of suitable rating , (RYB) for phase and 1 No for neutral mounted on DMC support with heat shrink sleeve-1 Set. (b) Phase indication lamp, LED type(set of 3) -1 Set (c) Ammeter analog type having measuring range (0-500) Amps with CTs etc including rotary switch to measure load of each phase (d) Volt meter having measuring range (0-500) volt with rotary switch to measure voltage of phase R.Y.B (e) Danger Notice plate for LT all side to be fixed (f) Incoming -ACB 4 Pole 630 Amp 415 volt manual draw out type with 50 KA breaking capacity, Isc=100% Icu & spreader both side as Incoming control device: 01 Nos. (g) Outgoing (i) MCCB 4 Pole 315 Amp 415 volt thermal adjustable , type with 36 KA breaking capacity Isc=100% Icu & spreader both side as outgoing control device : 01 No. (ii) MCCB 4 Pole 250 Amp 415 volt thermal adjustable , type with 36 KA breaking capacity Isc=100% Icu & spreader both side as outgoing control device : 02 Nos. (iii) MCCB 4 Pole 160 Amp 415 volt thermal adjustable ,type with 36 KA breaking capacity Isc=100% Icu & spreader both side as outgoing control device : 01 No. (iv) MCCB 4 Pole 100 Amp 415 volt thermal adjustable, type with 16 KA breaking capacity Isc=100% Icu & spreader both side as outgoing control device : 01 No.

Taking down/dismantling of LT Panels from plinth/ground /substation including disconnecting all necessary connections HT, LT, earthings etc, complete all as specified and directed.

Taking down/dismantling of HT 95 and 120 sqmm Cable in sizes from plinth/ground /substation including disconnecting, complete all as specified and directed.

Taking down/dismantling of HT Cable 185 Sqmm in sizes from plinth/ground /substation including disconnecting, complete all as specified and directed.

Excavation in trenches in hard/dense soil not exceeding 1.5 mtr wide and not exceeding 1.5mtr depth for foundation etc or for shafts, wells, cesspits, manholes, pier holes etc and getting out, complete all as specified and directed.

Returning filling in including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick, complete all as specified and directed.

Removing excavated soil to a distance not exceeding 50 meter and depositing where directed at a level not exceeding 1.5 meter above the starting point, complete all as specified and directed.

M&L for Sand cushioning using with Ganga sand for underground cable 8 cm before laying cable and 15 cm after laying and punned to 18 cm after laying of cable, complete all as specified and directed. ( Note: punned thickness shall be measured for payment)

M&L for Factory made unreinforced precast concrete cable covers conforming to IS:5820, class HV type 1 size 300x180x40 mm for cable protection, complete all as specified and directed.

Supply, laying & testing cable jointing kit for 11 KV (earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm, complete all as specified and directed.

Supply, laying & testing cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm, complete all as specified and directed.

Supply, laying & testing cable jointing kit for 11 KV (earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm, complete all as specified and directed .

Supply, laying & testing cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm, complete all as specified and directed .

Supply and lay GI pipe light grade of following size150 mm bore for cable protection laid in trenches or fixed on poles/wall, complete all as specified and directed .

Supply and lay GI pipe light grade of following size 100 mm bore for cable protection laid in trenches or fixed on poles/wall, complete all as specified and directed .

M&L for Boring of holes under road pavement hard standing by manual boring incl making good the disturbed surfaces, complete all as specified and directed .

Supply, laying, jointing and testing cable XLPE insulated screened PVC bedded galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade stranded aluminium conductor of size 120 Sqmm 3 core, complete all as specified and directed .

Supply, laying, jointing and testing cable XLPE insulated screened PVC bedded galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade stranded aluminium conductor of size 95 Sqmm 3 core, complete all as specified and directed .

Supply, laying, jointing and testing cable XLPE insulated screened PVC bedded galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade stranded aluminium conductor of size 185 Sqmm 3 core, complete all as specified and directed .

M & L for 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 M deep below ground level) with top edge of the plate not less than 1.5 M below normal ground level, connected to and including GI iron strip of size 32x6 mm flat by means of GI bolts, nuts, and washers, protected by 40mm bore GI light grade ISI marked pipe upto and including test points. Earthing plate shall be surrounded by alternate layers 15cm thick of charcoal or coke and common salt all around bottom and top, 20mm dia GI medium grade pipe for watering and including funnel, wire mesh, PCC chamber pit made with PCC (1:3:6) type C2 (using 20mm graded crushed store aggrgate) including necessary form work, excavation and earth work in any type of soil, returning filling in and disposal of surplus soil to a distance not exceed ing 50 M, pit cover 40 mm thick made with RCC (1:2:4) type B-1 (using 20mm graded crushed stone aggregate) including TMT reinforcement 80 mm dia @ 75 mm C/C both way, MS handle of 12 mm dia, cover rest on MS angle iron frame 40x40x6mm embeded in concrete duly painted with two coats of synthetic enamel paint over a coat of red oxide primer, complete all as specified and as shown in electrical plate No-3 of SSR Part-I, complete all as specified and directed by Engr in-charge

M & L for laying earth continuity conductor GI Strip 32 x 6 mm fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for direct/loop earthing with proper PVC/Porcelain insulator etc, complete all as specified and directed by Engr in-charge.

M & L for 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 M deep below ground level) with top edge of the plate not less than 1.5 M below normal ground level, connected to and including GI wire of 4 mm dia connected by means of GI bolts, nuts, and washers, protected by 15 mm bore GI light grade ISI marked pipe upto and including test points. Earthing plate shall be surrounded by alternate layers 15cm thick of charcoal or coke and common salt all around bottom and top, 20mm dia GI medium grade pipe for watering and including funnel, wire mesh, PCC chamber pit made with PCC (1:3:6) type C2 (using 20mm graded crushed store aggrgate) including necessary form work, excavation and earth work in any type of soil, returning filling in and disposal of surplus soil to a distance not exceed ing 50 M, pit cover 40 mm thick made with RCC (1:2:4) type B-1 (using 20mm graded crushed stone aggregate) including TMT reinforcement 80 mm dia @ 75 mm C/C both way, MS handle of 12 mm dia, cover rest on MS angle iron frame 40x40x6mm embeded in concrete duly painted with two coats of synthetic enamel paint over a coat of red oxide primer, complete all as specified and as shown in electrical plate No-3 of SSR Part-I, complete all as specified and directed by Engr in-charge.

M & L for laying earth continuity conductor GI wire 4 mm dia fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for direct/loop earthing with proper PVC/Porcelain insulator etc, complete all as specified and directed by Engr in-charge.