PROVN OF INFRA OF INSTALLATION OF 240 KW ELECTRIC FAST CHARGING STATION ALONGWITH CONNECTED FITTINGS FOR ELECTRIC VEHS AT SELECTION CENTRE EAST UNDER GE (WEST) PRAYAGRAJ.

Supply, install, connecting, testing and commissioning of outdoor type,Transformer 315 KVA capacity step down IS -1180 Part I/2014 (revised) amendement 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 conection on HV Side and star coonection on LV side in accordence 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 /accesories as specified. Transformer should have cable box on LT side and brass bushing on HT side ,oil temprature 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 limit of temp rise after contineous 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 prevaling at site all as specified comprising with the following specification :-

(a) Oil Conservator with filling hole and cap withdrain plug (b) Silica gel with breather with oil seal and first filling of dehydration agent, (c)Pressure release valve with automatic resetting arrengment after release of pressur -01 set (d) Oil tempreture gauge (indicator) having range (0-120 degree centrigrade) with max reading pointer 100mm dia with shut off valve between the conservator and main tank. (e) Adequate No of Thermometer pocket including one No for accommdating bulb type Thermometer. (f) Drain cum bottel filter valve. (g) Top filter valve. (h) Prismatic oil level gauge. (j) Inspection cover. (K) Cover lifting lugs. (l) Jaking and lifting lugs. (m) Bi direction plain rollers -04 Nos. (n) Rating and diagram plate. (o) Separate neutral bushing brought out for earthing on LV side.

(p) First filling of transformer oil conforming to IS 335-1972 with latest ammendments. (q) One No air insulation cable box on HVside suitable for XLPE cable. (r) Air insulation plain bus bar terminals for bus bar connetion including jointing materials. (s) Earthing terminals -02 Nos located on diagonally opposite transformer tank base. (t) copper alloy terminals studs connecting cables at HV and LV side. (u) Type of connection Delta/Star (v) Type cooling : ONAN. (w) Vector Group : DYN 11. (x) Buchholz relay (Double Float Type) (Having contacts for alarm & trip) (y) Plateform for Transformer of size 4000mmx4000mmx1200mm or size as approved by EIC alongwith fencing & gate shall be provided all as specified & shown on drawing No. CELZ/TD-699 sheet 1/1.

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 n.exc 10 Sqm on plan and n.exc 1.5mm depth 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 metere and depositing where directed at a level not exceeding 1.5 metre 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 considered 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

M&L for Factory made unreinforced precast concrete cable covers conforming to IS:5820, class LV type 1 size 250x150x40 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 .