MID/AN/38

Disassembly of outdoor type 33kv VCB installed at electric substation Ranjan from its position for replacement of various components . The job includes the disconnecting of 33kv line from isolator and then all the connection from the porcelain housing of 1250 A outdoor type VCB . Replacement of porcelain housing (interrupting chamber) from its position and then providing and fixing of 03 no porcelain housing chamber for 33 KV VCB. Providing and fixing of 03 no vaccum interrupter (bottle) nomenclature type VL- 35416-13F should enable metal vapour for arc discharge through the plasma and extinguished near current zero. The conductive metal vapour should conducive within a few micro second leading to the rapid build up of dielectric strength across the open contact gap . providing and fixing of 03 no flexible copper lugs to the vaccum interrupter as per sample size . All the metal parts in the mechanism shall be of corrosion resistant material. strengthening of mechanical spring change system for proper functioning . Greasing / oiling of all moving parts of VCB with high grade grease / oil for proper functioning. Replacement of trip coil , closing coil and auxiliary with new one as per VCB specification. Complete job includes cost of material, labour charges, to & fro transportation, loading, unloading charges for all tools & tackles required for execution of job on emergent basis for restoration of Lift Irrigation Scheme Ranjan during irrigation season .

Providing and Fitting of 33 kV current transformer (33 kV/110 V, multi-core outdoor type) along with clamps and other allied jobs.

Disassembly of all electric connection of battery bank and then replacement of batteries with new battery of 150 AH Capacity 03 no. strengthening of battery charger and their allied job for proper functioning of 36 Volt battery bank system . Complete job includes cost of material, labour charges, to & fro transportation, loading, unloading charges for all tools & tackles required for execution of job

Providing and fixing of termination kits to XLPE insulation HT cable 185 mm sq X 3 Core aluminium un armoured 03 nos. Complete job includes cost of material, labour charges, to & fro transportation, loading, unloading charges for all tools & tackles required for execution of job

Providing and fitting of control cable of 8 core 2.5 mm sq single armoured heavy duty from outdoor type VCB 33 KV to indoor type VCB 11 KV approx 200 metre along with other allied works which include thimbling etc as per site condition Providing and fitting of control cable of 4 core 2.5 mm sq single armoured for, winding and temperature relay of transformer 2.5 MVA from transformer to indoor control panel, VCB and CR Panel(approx 200) and 2 core 2.5 sq mm from Buchholz relay to control room (200 meters approx) which include thimbling etc as per site condition. Providing and fitting of control cable 4 core 2.5 mm sq for CT to indoor panel as per site condition approximate 200 metres.

Electrification of electric substation of Ranjan at receiving station of 2.5 MVA transformer and control room which include 9 Nos. 5 amp points for LED lights, two fans and one flood light outside of control room of 35W capacity. The job includes wiring of the control room with 2 mm sq copper cable. Electrification of yard of receiving sub-station Ranjan includes providing and fitting of 04 Nos. Flood lights of 50W capacity for illumination of receiving yard. Providing and Fitting of 32 Amps. MCB switch for the operation of Flood lights of receiving yard. The job includes the cost of material, labour charges, tools and tackles required during execution of the job etc. Complete job.

Providing and fitting of glass panes of control room with proper glass fixing material. Providing of rubber mats of size (1m X 2m) of thickness 19 mm (04 Nos.) in the control room. The job includes the cost of material, labour charges, tools and tackles required during execution of the job etc. Complete job.

M/S RAGHUNATH MECHANICAL AND ELECTRICAL ENGINEERING WORKS

GS ENGG WORKS

PERFECT ELECTRICAL WORKS