SPL REPAIR AGAINST REPLACEMENT OF BER TRANSFORMER AT BABINA CANTT

Supplying, installation, connecting, testing and commissioning of outdoor type distribution transformer of 100 KVA, 11/0.433 KV, 3 phase, 50 Hz, ONAN cooled oil immersed copper wound step down enrgy saving (level 2), foundation mounted complete with first filling ISI marked filtered & dehydrated transformer oil and other standard fittings / accessories and 7 position off circuit tap changer (tapping range +/- 7.5% in steps of 2.5% each) with vector group DYN -11 complete all as specified and as directed by the Engineer in Charge. Note - (i) The ambient temprature shall be 48 degree Centigrade when measured by the resistance method after continuous full load run . (ii) The transformer shall be complete with standard fittings all as specified and conforming to IS:335 of 1993 for oil and IS: 1180 Part -I of 2014 for transformer and comprising of followings:- (i) One No cable box on LV side (secondary side) consisting of 04 Nos of porcelain bushing with bushing rods and another cable box on HV side (primary side) consisting of 03 Nos of porcelain bushing with bushing rods etc complete with nut, washers, cable gland etc. (ii) Oil conservator tank with filter type drain valve and oil level gauge. (iii) Oil level indicator with minimum and maximum marking

(iv) Dehydration silica gel breather assembly with first fill of dehydrating agent and oil seal. (v) Explosion vent with diaphragm complete. (vi) Thermometer pocket on tank cover. (vii) Dial type thermometer vapour pressure having range 0-120 degree C with max reading pointer max temp indicator and resetting device. (viii) Rating plate with terminal marking. (ix) 02 Nos earthing terminal on tank and cover for fixing earth strip of size 32 x 6 mm. (x) Oil level gauge and oil drain filter valve. (xi) Lifting hook. (xii) Oil filler hole with cap /plug with connection complete. (xiii) Air relief valve plug. (xiv) Detachable rollers - 04 Nos (xv) Extra bushing for Neutral out side the cable box for independent earthing for neutral earth. (xvi) First fill of fresh transformer oil confirming to relevant IS and tested up to 50 KV die electric strength. (xvii) Plateform/ PCC foundation work (brick work) as per OEM recommendation is deemed to be included in quoted rate

Supplying, installation, connecting, testing and commissioning of outdoor type distribution transformer of 200 KVA, 11/0.433 KV, 3 phase, 50 Hz, ONAN cooled oil immersed copper wound step down enrgy saving (level 2), foundation mounted complete with first filling ISI marked filtered & dehydrated transformer oil and other standard fittings / accessories and 7 position off circuit tap changer (tapping range +/- 7.5% in steps of 2.5% each) with vector group DYN -11 complete all as specified and as directed by the Engineer in Charge. Note - (i) The ambient temprature shall be 48 degree Centigrade when measured by the resistance method after continuous full load run . (ii) The transformer shall be complete with standard fittings all as specified and conforming to IS:335 of 1993 for oil and IS: 1180 Part -I of 2014 for transformer and comprising of followings:- (i) One No cable box on LV side (secondary side) consisting of 04 Nos of porcelain bushing with bushing rods and another cable box on HV side (primary side) consisting of 03 Nos of porcelain bushing with bushing rods etc complete with nut, washers, cable gland etc. (ii) Oil conservator tank with filter type drain valve and oil level gauge. (iii) Oil level indicator with minimum and maximum marking (iv) Dehydration silica gel breather assembly with first fill of dehydrating agent and oil seal. (v) Explosion vent with diaphragm complete. (vi) Thermometer pocket on tank cover. (vii) Dial type thermometer vapour pressure having range 0-120 degree C with max reading pointer max temp indicator and resetting device. (viii) Rating plate with terminal marking. (ix) 02 Nos earthing terminal on tank and cover for fixing earth strip of size 32 x 6 mm. (x) Oil level gauge and oil drain filter valve. (xi) Lifting hook. (xii) Oil filler hole with cap /plug with connection complete.

(xiii) Air relief valve plug. (xiv) Detachable rollers - 04 Nos (xv) Extra bushing for Neutral out side the cable box for independent earthing for neutral earth. (xvi) First fill of fresh transformer oil confirming to relevant IS and tested up to 50 KV die electric strength. (xvii) Plateform/ PCC foundation work (brick work) as per OEM recommendation is deemed to be included in quoted rate

Supplying, installation, connecting, testing and commissioning of outdoor type distribution transformer of 315 KVA, 11/0.433 KV, 3 phase, 50 Hz, ONAN cooled oil immersed copper wound step down enrgy saving (level 2), foundation mounted complete with first filling ISI marked filtered & dehydrated transformer oil and other standard fittings / accessories and 7 position off circuit tap changer (tapping range +/- 7.5% in steps of 2.5% each) with vector group DYN -11 complete all as specified and as directed by the Engineer in Charge. Note - (i) The ambient temprature shall be 48 degree Centigrade when measured by the resistance method after continuous full load run . (ii) The transformer shall be complete with standard fittings all as specified and conforming to IS:335 of 1993 for oil and IS: 1180 Part -I of 2014 for transformer and comprising of followings:- (i) One No cable box on LV side (secondary side) consisting of 04 Nos of porcelain bushing with bushing rods and another cable box on HV side (primary side) consisting of 03 Nos of porcelain bushing with bushing rods etc complete with nut, washers, cable gland etc. (ii) Oil conservator tank with filter type drain valve and oil level gauge. (iii) Oil level indicator with minimum and maximum marking (iv) Dehydration silica gel breather assembly with first fill of dehydrating agent and oil seal. (v) Explosion vent with diaphragm complete. (vi) Thermometer pocket on tank cover. (vii) Dial type thermometer vapour pressure having range 0-120 degree C with max reading pointer max temp indicator and resetting device. (viii) Rating plate with terminal marking. (ix) 02 Nos earthing terminal on tank and cover for fixing earth strip of size 32 x 6 mm. (x) Oil level gauge and oil drain filter valve.

(xi) Lifting hook. (xii) Oil filler hole with cap /plug with connection complete. (xiii) Air relief valve plug. (xiv) Detachable rollers - 04 Nos (xv) Extra bushing for Neutral out side the cable box for independent earthing for neutral earth. (xvi) First fill of fresh transformer oil confirming to relevant IS and tested up to 50 KV die electric strength. (xvii) Plateform/ PCC foundation work (brick work) as per OEM recommendation is deemed to be included in quoted rate

M&L for earthing complete with galvanised steel earth plate electrode of size 600X600X6 mm thick buried directly in ground (earth pit not less than 2.25 m deep below normal ground level) with top edge of the plate not less than 1.50 mtr below the ground level connected to galvanised iron strip of 32 x 6 mm as earth lead by means of bolts nuts check nuts & washers of galvanised iron or steel ,surrounded by charcoal of coke and salt, water pipe 20mm bore GI medium grade with funnel and wire mesh,and making chamber of PCC (1:4:8) type D-2 using 40 mm graded stone aggregate and coping shall be in PCC(1:3:6) type C-1 using 20 mm graded stone aggregate, 50 mm thick cover of RCC (1:2:4) type B-1 using 20 mm graded stone aggregate, reinforced with 8 mm dia TMT bars @ 80 mm c/c boath ways including excavation and earth work and removal of surplus soil to distance n exc 50 m complete all shown in electrical plate No 3 of SSR part- 2010 complete all as specified and directed. Note :- (i) The cost of GI earth lead & G I pipe of 7.50 mtr length for protection of GI wire and excavation work for pit shall deemed to be included in this item. (ii) Earthing test will be carried out and if desired result not achieved and the earthing will be redone to achieve desired result without any extra payment. (iii) Charcoal dust and common salt upto 1.5 meter depth shall be filled in layers of 15 centimeters all around the earth plate.