PROVN OF SPARE TRANSFORMER OF CAPACITY 400 KVA AT NIWARU MIL STN

Amount

Supply, installing, testing and commissioning of outdoor type step down transformer copper wound of capacity 400 KVA 11000/433 volts (at no load), AC 3 phase 50 Hz immersed naturally cooled, oil nature , air nature (ONAN) with external cooling tubes, 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 out on secondary side (LV side) and having tapping at +/- 5% HV side to be changed by means of hand operated off load tap changer gear in steps of +/- 2.5%. The maximum temperature rise should not exceed 45 degree Celsius in oil and 55 degree Celsius in HV/LV winding when measured by resistance method (necessary test certificate carried out at factory site to be produced) after continuous full load run on an ambient temp of 40 degree Celsius. The transformer shall be in accordance with EEL-02 of IS 1180-2014 with ammendment No 1,2,3,& 4 and shall comprise of the following.

One cable box on HT side (primary side) consisting of 03 Nos of porcelain bushing with copper rods, complete with nuts and washers with two nos cable glands suitable for reception /taking out of XLPE insulated heavy duty armoured cable including glands.

One cable box on LT side (secondary side) consisting of 04 Nos of porcelain bushing with copper rods, complete with nuts and washers with two nos cable glands suitable for reception /taking out of XLPE insulated heavy duty armoured cable including glands,

Oil conservator with filter type drain valve and oil level gauge.

De-hydrating breather with first fills dehydrating agent (silica gel) -01 No

Explosive vent with diaphragm -01 No

Thermometer pocket on tank cover- 01 No

One No 100 mm dia dial type thermometer, vapour presure type having range 0-120 degree celsius with metal guard having maximum permeter reading temperature indicator with resiting device for transformer.

Two earthing terminal on tank cover to facilitate fixing of 32 x 6 mm galvanized iron earth strip for earthing of neutral and body.

LIFTING Hook - 01 No

Rating plate & terminal marking plate

S& F 4 wheels trolly suitable for mounting of 400 KVA transformer pneumatic type tyre of make Ceat/ MRF or Apollo with tube hub axel and mechanical system stop lever indicating suspension system (leaf spriing type) facility of taking hook approximate speed 20 - 30 km/ Hr and framed by MS channel of size not less than 100*50*6 mm including necessary welding and frame works front and rear side standing jacks with locking arrangement, cable drum rotating type arrangement and provisioning of tool box for suitable tools/ accessories etc. for capacity of 5 Ton complete all as specified and directed.

S &F cable jointing kit for 11 KV grade cable for indoor termination heat shrinkable type joint complete with jointing material and accessories suitable for 03 core XLPE, armoured, Aluminium conductor cable of size 95 sqmm complete all as specified and as directed.

S &F cable jointing kit for 11 KV grade cable for outdoor termination heat shrinkable type joint complete with jointing material and accessories suitable for 03 core XLPE, armoured, Aluminium conductor cable of size 95 sqmm complete all as specified and as directed.

S&F, connecting and testing of XLPE insulated screen PVC bedded galvanised steel strip or wire armoured electric power cable (heavy duty) with Aluminium conductor 11 KV grade cross sectional area 95 sqmm 03 core complete all as specified.

S& F connecting and testing of XLPE insulated screen PVC bedded galvanised steel strip or wire armoured electric power cable (heavy duty) with Aluminium conductor 1100 V grade cross sectional area 400 sqmm 3.5 core complete all as specified.

Electromech Engineers

SHREE BHAGWATI ENTERPRISES

S.R.Enterprises

M/S Anil Enterprises