PROVN OF ADDITIONAL STANDBY TRANSFORMER AT BEG AND CENTRE KHADKI UNDER GE (CENTRAL) KHADKI

Supply & install, testing and commissioning step down transformer, out door type and conforming to IS 1180:2014, level -2 plinth mounted, HT 11 KV, 3 phase 433 volts, 4 wire, 50 Hz delta/star connected, vector group DYN - 11 double copper wound, ONAN, manul type off load tap changing facility on HT side to vary secondary voltage from minimum 7.5% to plus7.5% in steps of 2.5 % continuous rating of capacity 500 KVA including bushing on HT end cable box on LT side. the transformer shall be complete with all standard fittings and accessories, gauges, first fill of btransformer oil IS 335 ISI marked filtered & dehydrated oil etc, complete all as specified and directed by Engr-in-charge. and comprision of the following accessories :-

(a) primary HV side suitable for OH Coductor(consisting of 3 Nos porcelain HT bushings with brass/gun metal bushing rods complete with nuts and washer. (b) one cable box on secondery (LV) side consisting of 4Nos porcelain busing with GM bushing roads complete with GH nuts and washer with one Nos cable bland suitable for reception of out going LT armoured cables of suitable size. (c ) oil conservator tank with filter type, drain valve and oil level gauge (d) dehydrating breather with first fill of dehydhedratig Agent. (e) thermometer pocket on tank cover (f) one Nos 100mm dia dial type thermometer vapour pressure type having range 0- 120 degree centrigrade with temp reading pointer, max temp indicato and reseting devices

(g) rating plate with terminal markings. (h) two earthing terminasl of tank/tanks cover to facilitade fixing of 32x6m GI earthing strip (j) oil level gauge. (k) oil drain and filter valves. ( I) oil filter hole with cap/plug with connections complete. (M) lifting lugs. (n) air relief valve plug (o) Four plan soilid cast steel detacheble rollers. (p) first fill of fresh oil confirming to relvant IS and tested up to 50 kV dielectric strength upto top of core (q ) Extra bushing for neutal outside the LT cable box for providing independent earthing for neutral. (r ) provision of 2 Nos danger boards 250x200mm size made of 1.6mm thick MS plate, vitreous enameled white, with letters, figures of voltage and conventional skull and bones in signal red colour, one at HT side and other on LT side all as specified .

M&L for totally enclosed suitable for carry the transformer of capacity 500 KVA outdoor type the trolley having following technical specification complete all as specified and directed by Engr-in-charge. :- (a) Dimention of platform : 3000 x 2000mm (+ 10mm ) (b) Height : 200mm (+ 10mm) (c ) Platform (Floor) :MS plate 10mm thick (d) Chasesis (base frame) : MS Channel 100 x 75mm (e) Trolley side (cage frame )MS Sq pipe 75 x 75mmx 6 mm thick (+2mm) (f) Front & Rear & side Door (3 doors ) Frbircated with MS angle iron 50x50x5mm (g) Support for DO fuse & insulators : MS Channels 75x38mm(+2mm) height 1780mm (h) Axes : 2 Axel size 75mm sq and length 1800 front (j) Rims : Rim 4 in numbers (k) Tyres and tybes : 4 in Nos inflatable of size 600 x 16 (l) Suspension : Leaf spring suspension provided on all four wheels (m) Turn table : MS Channel 100 x 38mm MS Plate suitable for turn table (n) Draw Bar : MS Channel 100 x 38mm (+2mm) (o) Toeing Hook : MS round 75mm (p) Loading capacity : Suitable to carry 500KVA Transformer (q) Paint : Grey Enamel Painted of approved shades Note: The quoted rate inclsive of preparation of trolley drawing by Contractor and approved by GE

Supply, laying & testing cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 11000 volts grade,of size 3 core 95 sqmm(for HT side connection to Transformer) complete all as specified and directed by Engr-in-charge.

S&F for cable jointing kit for 11 KV grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE, armoured, Al conductor cable of size 50 sqmm to 95 sqmm complete all as specified and directed by Engr-in-charge.

S & F for cable jointing kit for 1.1 KV grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3.5 core XLPE, armoured, Al conductor cable of size 185 sqmm to 240 sqmm complete all as specified and directed by Engr-in-charge.

Supply, laying and testing cable XLPE Insulated ,screened, PVC bedded,galvanized steel strip or wire armoured,electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 240.00 sq mm3.5 core(for LT side connection to Transformer)complete all as specified and directed by Engr-in-charge.