AUGMENTATION OF POWER SUPPLY AND SPL REPAIR/ REPLACEMENT OF 02 BER TRANSFORMER AT NEW CANTT ALLAHABAD UNDER GE (WEST) ALLAHABAD.

Amount

Supply, fixing ,commisioning and testing of Outdoor type trolley mounted Transformer 400 KVA capacity , step down with dual ratio on HT side 11/0.433 KV at NO load, 3 phase, 4wire 50 Hz AC double wound core type copper wound, oil immersed, air naturally cooled with extarnal cooling tubes, transformer delta connection on HV side and star connection on LV side in accordence with vector symbol DyN-II with neutral brought out on secondary side and having tapping in step of 2.5 %, 5%, and 7.5% 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 / accesories as specified in SSR Part -I and IS -1180 Part I/2014 (revised) BEE Star rated energy saving . Transformer should have cable box on LT side and brass bushing on HT side , oil temperature guage, dehydrating breather with first fill of dehydrating silica gel, oil conservator tank, explosion vent, rating and terminal marking plate, oil level guage, oil drain and filter valve, independent earth point and neutral fittings, earth terminal at bodybase, voltage regulation should be as per IS and limil of temp rise after contineous full load run as specified in SSR part-I and IS -1180 Part I (revised) shall be suitably adjusted to suit the maximum ambient temp prevailing at site all as specified comprising with the following specifications: -

(i) Cable box on LV & HV side consisting of 03 Nos porcelain bushing with bushing brass rods and nut bolts. (ii) Oil conservator with filter type drain valve and oil level gauage. (iii) Two earthing terminal on tank body to facilitate fixing of GI strip. (iv) Vapour pressure based dial type anolog thermometer having range0-120 degree centegrate with maximum temperature indicator needle of temperature guage. (v) Rating plate with terminal plate. (vi) Oil level guage. (vii) Oil drain filter valve. (viii) Oil filling port on top cover with plug. (ix) Air release valve/plug. (x) 4 Nos plain solid cast steel detachable rollers. (xi) Shut off valve between conservator and bucholz relay. (xii) First fill of transformer oil of 60 KV dielectric strength. (xiii) Inspection cover. (xiv) Lifting lugs and jack lifting pad support. (xv) Explosion vent with double diaphram and sight glass. Note :- The transformer shall be suitable for fixing on trolley and rate for fixing of transformer in existing trolley deemed to be included in unit rate.

Laying only XLPE insulated , screened ,pvc bedded galvanised steel strip or wire armoured electric power cable (heavy duty) with alluminium conductor 11000 volt grade having cross section area of 95 Sq mm 3 core "E" grade complete all as specified and directed. Note :- Cable will be issued under Sch 'B' store free for fixing.

M&L for Cable jointing kit for 11 KV (Earthed) grade cable 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 outdoor type complete all as specified and directed.

Excavation in trenches in soft/ loose soil n.exc 1.5 m wide and n.exc. 1.5 mtr deep and getting out and laying HT UG Cable complete all as specified and directed .

Returning filling in foundation/ trenches including spreading leveling , watering and well ramming in layers not exceeding 25 cm thick in soil complete all as specified and directed.

Removal of surplus excavated soil to a distance n.exc. 50mtr and depositing where directed at a level n.exc. 1.5 mtr above starting point complete all as specified and directed.

Supply and laying sub class 'B' brick old size laid flat in trenches across the length for protection of cable as cable cover complete all as specified and directed .

M&L for sand cushioning in trenches for protection of under ground cable provided in layers of sand 8cm deep before laying the cable and 15cm deep after the cable (Punned down to 18 cm) complete all as specified and directed. (Note:- Punned thickness as 18 cm shall be measured and paid)

Laying only XLPE insulated , screened ,pvc bedded galvanised steel strip or wire armoured electric power cable (heavy duty) with alluminium conductor 11000 volt grade having cross section area of 120 Sq mm 3 core "E" grade complete all as specified and directed. Note :- Cable will be issued under Sch 'B' store free for fixing.

Supply, fixing ,commisioning and testing of Outdoor type trolley mounted Transformer 200 KVA capacity , step down with dual ratio on HT side 11/0.433 KV at NO load, 3 phase, 4wire 50 Hz AC double wound core type copper wound, oil immersed, air naturally cooled with extarnal cooling tubes, transformer delta connection on HV side and star connection on LV side in accordence with vector symbol DyN-II with neutral brought out on secondary side and having tapping in step of 2.5 %, 5%, and 7.5% 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 / accesories as specified in SSR Part -I and IS -1180 Part I (revised) BEE Star rated energy saving . Transformer should have cable box on LT side and brass bushing on HT side , oil temperature guage, dehydrating breather with first fill of dehydrating silica gel, oil conservator tank, explosion vent, rating and terminal marking plate, oil level guage, oil drain and filter valve, independent earth point and neutral fittings, earth terminal at bodybase, voltage regulation should be as per IS and limil of temp rise after contineous full load run as specified in SSR part-I and IS -1180 Part I (revised) shall be suitably adjusted to suit the maximum ambient temp prevailing at site all as specified comprising with the following specifications: -

(i) Cable box on LV & HV side consing of 03 Nos porcelain bushing with bushing brass rods and nut bolts. (ii) Oil conservator with filter type drain valve and oil level gauage. (iii) Two earthing terminal on tank body to facilitate fixing of GI strip. (iv) Vapour pressure based dial type anolog thermometer having range0-120 degree centegrate with maximum temperature indicator needle of temperature guage. (v) Rating plate with terminal plate. (vi) Oil level guage. (vii) Oil drain filter valve. (viii) Oil filling port on top cover with plug. (ix) Air release valve/plug. (x) 4 Nos plain solid cast steel detachable rollers. (xi) Shut off valve between conservator and bucholz relay. (xii) First fill of transformer oil of 60 KV dielectric strength. (xiii) Inspection cover. (xiv) Lifting lugs and jack lifting pad support. (xv) Explosion vent with double diaphram and sight glass. Note :- The transformer shall be suitable for fixing on trolley and rate for fixing of transformer in existing trolley deemed to be included in unit rate.

M&L Cable jointing kit for 11 KV cable for end termination heat shrink type joint with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of following size:-

Size 95 sqmm, 3 core outdoor type.

Size 120 sqmm, 3 core outdoor type

Diamond Electric Co.

Bharat Sales Corporation