PROVN OF TROLLEY MOUNTED TRANSFORMER OF 500 KVA 11/0.433 KV FOR AREA OF JNE UNDER GE (UTILITIES) UDHAMPUR

Amount

Supply install , testing and commissioning out door type , Trolley mounted step down transformer 11 kv / 433 volts ( at no load ) AC 3 Each 1 phase 50 Hz , of 500 KVA capacity double copper wound , oil immersed , naturally cooled , ( ON AN ) , with external cooling tubes / fins , vector group DYN 11 with neutral brought out on ( LV side ) and having tapings at ± 2.5 % to be changed by means of hand operated OFF load tap changer confirm to IS - 1180 Part - I . 2014 level - 2 & shall comprise of the following:- ( a ) one cable box on HT side ( Primery side consisting of 3 No procelain bushings with copper rods complete with nuts & bolts. ( b ) one cable box on LT side ( secondary) side consisting of 4 nos porcelain bushing with copper rods complete with nuts & washer ( c ) oil conservator oil level gauge, ( d ) dehydrating breather with first fill of dehydrating agent ( silica gel ) ( e ) explosion vent thermometer pocket on tank cover oil drain filter valve , lifting lugs oil filling hole with cap / plug air release valve plug & 4 Nos plain soild cast steel detachable rollers (f ) 1 No 100mm dia dial type thermometer , vapor pressure type , having range 0-120 degree celsius having maximum temperature reading indicator with resetting ( g ) 2 earthing terminals on tank cover to facilitate fixing of 50X6 mm galvanised iron earth strip for earthing of body ( h ) rating plate & terminal marking plate ( i ) extra bushing for neutral , in the LT cable box for providing independent set of earthing for neutral

Srl item No 01 Contd … (j ) first filling of new & unused transformer oil , IS - 335 Marked within filter & tested upto 40 KV di electric strength at 2 : 5 mm air gap between testing electrodes.The transformer oil shall be fresh and approval certificate from manufacturer shall be obtained by contractor and furnished to GE. the copper shall be 99.97% purity and approval certificate from manufaturer shall be obtained by contractor and furnished to GE. Note: Pre -commisioning, inspection of transformer shall be carried out by rep of Accepting offr and T&P for the inspection shall be arrange by contractor, cost of the T&P etc for testing shall deemed to be included in the unit rate.

Supply , laying, testing and commissiong of HT Cable XLPE insulated , screened, PVC bedded galvanised steel strip or wire armoured electric power cable ( heavy duty) with aluminium conductor , 11000 volts earthed grade cross sectional area 120 sqmm 3 core suitable for Earthed system conforming to IS 7098 (Part-II) complete all as specified and directed by Engr-in-Charge.

Supply, Jointing and testing of 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 complete, all as specified and directed by Engr-in-Charge.

Supply, laying and testing of XLPE insulated sheathed armoured heavy duty LT 1100 Volts grade cable with aluminum conductors laid in trenches/pipe, fixed to poles, walls with stranded aluminium conductor of size 400 sq mm 3.5 core complete all as specified and as directed by Engr-in-Charge.

Supply and fixing LT switch gear 440 volts 3 phase, 4 wire 50 cycles, cubicle or truck type complete with air circuit breaker, overload protection, no-volt release with necessary Cts, meter and cable boxes, Manual Drawout type with microprocessor release of capacity 800 Amps complete all as specified and as directed by Engr-in-Charge.

M&L for multistranded Copper cable of 70 Sqmm FRLS PVC insulated cable with PG clamp 0f 15 mtrs including nuts and bolts complete all as specified and as directed by Engr-in-Charge.

M&L for four wheel platform type trailor size 2500 (L) X 2000(W) X 600(H) mm with hook for mounting of 500 KVA Transformer having hydraulic system arrangement in four whel alongwith supporting bar with following specificaitons:- (a) Trailor will provide with chasis with the main base chasis made of MS channel 100 x 50 x 02 mm thick sheet having dimension of 3600 x 1600 mm duly welded and supported from the bottom with cross MS channel width wise and 50 x 50 x 6 mm angle length wise. (b) One set per trailor of leaf spring of spring 70 x 11 x 900 mm (02 Nos leaf spring). (c) One no square axles of the size 62 x 62 mm. (d) Mechanical parking brake system operated through hand leaver in front of the trailor 03 Jacks. (e) Four Nos new tyres and tubes alongwith heavy duty rim of size 7:50-16 (New) fitted in the trailor. (f) Tringular toe bar made of 75 x 40 mm channel with 36 mm eye hook spring loaded. (g) All other parameters to meet the suitability of the equipment which is not covered in the above point but is design requirement. (h) The complete structure of the trailor/tyres rims will be painted black after two coats of red oxide primer. Note : Design/drawing shall be submitted for approval before placing the order. The minimum parameter are mentioned however the trolley is to be suitable to carry minimum weight for 500 KVA Transformer all as specified and directed by Engr-in-Charge

vijay kumar gupta and co

proach associates

m/s fangalia traders

slathia construction works