CA NO. CWE (AF) SGR/SGR-23/2019-20

Amount

Supply installing, testing and commissioning AC 3 Phase 50Hz, 100 KVA capacity transformer complete copper wound step-down outdoor type 11000/433 Volt (at no load) double wound oil immersed naturally (ONAN) cooled with external cooling tubes/radiator, Core type delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector symbol Dyn 11 (vector group) with neutral brought on secondary side (LV side) and having tapping +/- 2.5% +/- 5.0% and +/- 7.5% to be changed by means of hand operated off load tap changing gear the maximum temperature rise should not exceed 45 degree centigrade in oil and 55 degree centigrade in HV/LV winding when measured by resistance method after continuous full load run in ambient temp of 55 degree centigrade as prevalent as Srinagar and the transformer shall be comprised as specified as SSR part-I and IS-1180 (part-I) 2014 (Latest version) and BEE certified with the following standard fittings : (a) Three Nos porcelain bushing with arching horn on HV side suitable for 11 KV complete with bushing copper rods nuts and washers. (b) One cable box on LT side (secondary side) consisting of four Nos porcelain with copper bushing rods complete with nuts and washers with one No metalic cable glands suitable for reception of taking out 01 Nos suitable size cable LT 1100 Volts grade PVC sheathed and PVC insulated heavy duty armoured cable including gland joint and jointing materials complete. (c) Oil conservator with filter type drain valve and oil level gauge. (d) Dehydrating breather with first fill dehydrating agent (Silica gel with deep sky blue colour only). (e) Explosive vent. (f) Thermometer pocket on tank cover. (g) One No 100mm dia dial type thermometer vapor pressure type having range (0-120) degree Celsius with metal guard having maximum temperature indication with resisting device for transformer.

(h) Two earthing terminal on tank cover to facilitate fixing of 32 x 6 mm GI earth strip. (j) Rating plate and terminal marking plate. (k) Oil level gauge. (l) Oil drain filter valve. (m) Lifting lugs. (n) Oil filling hole with cap/plug with connection plate complete. (o) Air relief valve plug. (p) Four plain solid cast steel detachable rollers. (q) Extra bushing for neutral out side the cable box providing independent earthing for neutral. (r) First fill of fresh transformer oil conforming to relevant IS tested up to 60KV dielectric strength at 2.5mm gap for 1 mintue. NOTE : Transformer has to be placed on the same foundation and connected to existing earthing strips of old one rate mentioned deemed to be included dismantling of old BER one. (ii) Any other technical requirement not specified here in before but is required for efficient functioning of transformer is deemed to be included in the quated rates. (iii) Full load testing shall be done at site. The artificial resistive load shall be arranged by contractor this is included in the quoted rates. (iv) any other parts /items not specified here in before but have been considered essential for smooth and safe functioning shall be included in the items and are carried against the quoted rates.

All as per item 01 herein before but Cpacity of 200 KVA Transformer.

All as per item 01 herein before but Cpacity of 250 KVA Transformer.

All as per item 01 herein before but Cpacity of 315 KVA Transformer.

M/S Razdan Buildersand suppliers

M/S KULBIR SINGH SODHI AND CO

Electromech Engineers

GHULAM AHMAD MIR

SUMEET TRADING CORPORATION

M/S Sky Engineers

MIR AND CO