SPECIAL REPAIR /REPLACEMENT OF LEFTOVER BER DISTRIBUTION TRANSFORMER AND POWER TRANSFORMER AND 33KV VCBs ALONGWITH CONNECTED ITEMS IN MRS YARD AT AF STN BAREILLY

Supply, install, commissioning and testing of Transformer capacity 100 KVA, 11/0.433KV 3phase 50Hz ONAN cooled oil immersed copper wound outdoor type, , step down Transformer complete with first filling of IS 335 ISI marked filtered and dehydrated transformer oil and other standard fittings/accessories and 7 position with OFF LOAD tap changer tapping range up to + 5% to -10% in step of 2.5 % BEE compliance level III. The Transformer shall be of DYN -11 vector group and conforming to Latest IS-1180 complete all as specified and directed. The transformer shall have following accessories :-

(a) Oil Conservator with filling hole and drain cock. (b) Oil Level Gauge. ( C ) Oil seal type transparent breather with silica gel. (d) Two numbers earthing terminals with lugs. (e) Oil drain Valve/filter valve (f) Radiators with valves. (g) Lifting lugs with fastening holes. (h) Thermometer dial type 0-120 degree C. (j) rating & Specification plate. (k) 4 Nos plain cast steel bi-directional detachable rollers. (l) Explosion vent with diaphragm & sight glass. (m) transformers must have its neutral brought out for earthing on LV side. (n) Transformers must be earthed by two independent earthings with GI Strips for body and another two independent earths for neutral. Neutral earthing of transformers should be done by using GI earth plate and GI earth strip. (o ) Transformer Shall be installed as described in IS-10028 (Part-II and in conforming with IE rule.

Supply, install, commissioning and testing of Transformer capacity 250 KVA, 11/0.433KV 3phase 50Hz ONAN cooled oil immersed copper wound outdoor type, , step down Transformer complete with first filling of IS 335 ISI marked filtered and dehydrated transformer oil and other standard fittings/accessories and 7 position with OFF LOAD tap changer tapping range up to + 5% to -10% in step of 2.5 % BEE compliance level III. The Transformer shall be of DYN -11 vector group and conforming to Latest IS-1180 complete all as specified and directed. The transformer shall have following accessories :-

(a) Oil Conservator with filling hole and drain cock. (b) Oil Level Gauge. ( C ) Oil seal type transparent breather with silica gel. (d) Two numbers earthing terminals with lugs. (e) Oil drain Valve/filter valve (f) Radiators with valves. (g) Lifting lugs with fastening holes. (h) Thermometer dial type 0-120 degree C. (j) rating & Specification plate. (k) 4 Nos plain cast steel bi-directional detachable rollers. (l) Explosion vent with diaphragm & sight glass. (m) transformers must have its neutral brought out for earthing on LV side. (n) Transformers must be earthed by two independent earthings with GI Strips for body and another two independent earths for neutral. Neutral earthing of transformers should be done by using GI earth plate and GI earth strip. (o ) Transformer Shall be installed as described in IS-10028 (Part-II and in conforming with IE rule.

Supply, install, commissioning and testing of Transformer capacity 200 KVA, 11/0.433KV 3phase 50Hz ONAN cooled oil immersed copper wound indoor type, , step down Transformer complete with first filling of IS 335 ISI marked filtered and dehydrated transformer oil and other standard fittings/accessories and 7 position with OFF LOAD tap changer tapping range up to + 5% to -10% in step of 2.5 % BEE compliance level III. The Transformer shall be of DYN -11 vector group and conforming to Latest IS-1180 complete all as specified and directed. The transformer shall have following accessories :-

(a) Oil Conservator with filling hole and drain cock. (b) Oil Level Gauge. ( C ) Oil seal type transparent breather with silica gel. (d) Two numbers earthing terminals with lugs. (e) Oil drain Valve/filter valve (f) Radiators with valves. (g) Lifting lugs with fastening holes. (h) Thermometer dial type 0-120 degree C. (j) rating & Specification plate. (k) 4 Nos plain cast steel bi-directional detachable rollers. (l) Explosion vent with diaphragm & sight glass. (m) transformers must have its neutral brought out for earthing on LV side. (n) Transformers must be earthed by two independent earthings with GI Strips for body and another two independent earths for neutral. Neutral earthing of transformers should be done by using GI earth plate and GI earth strip. (o ) Transformer Shall be installed as described in IS-10028 (Part-II and in conforming with IE rule. NOTE for Srl item No 1 to 3 :- (i) Design, drawings, Technical specifications shall be approved by the Garrison Engineer. (ii) Transformer shall be tested by rep of Accepting Officer before despatch from factory premises.

M & L for earthing comprising of copper earth plate electrode 600 mm X 600 mm X 3.15 mm thick buried directly in ground (earth pit not less than 2.25 m below ground level) with top edge of earth plate not less than 1.50 m below normal ground level, connected to copper earth strip of size 20 X 3 mm by means of nut-bolts, check nuts and washers of galvanised iron or steel all as shown on electrical plate No. 3 of MES schedule 2020, Part–I (Specifications) including excavation, and earth work in any type of soil disposal of soil providing alternate layers of charcoal and common salt construction of PCC earth chamber in mix 1:3:6 type C-1 with 40 mm thick 1:2:4 type B-1 cover reinforced with 8 mm dia MS bars both ways with lift hook made out of 8 mm dia bar,watering arrangement. Note : Main earth lead beyond 7.5 meter shall be measured and paid separately.

Material and Labour for earth continuity conductor or copper strip of size 20x3 mm burried in ground, fixed to wall, any other indicated situation for loop earthing and the like upto test point on necessary insulators and fastning screws, rawl plugs complete all as specified and directed. NOTE: - The joints of each lead strip shall be welded / brazed and the cost of brazing / welding shall deemed to be included in unit rate of this item.

M&L for cable jointing kit for 11 KV (E) grade cable for outdoor end termination cold shrink type complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 95 sqmm 3 core complete all as specified and directed.

M&L for cable jointing kit for 11 KV (E) grade cable for indoor end termination cold shrink type complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 95 sqmm 3 core complete all as specified and directed.