WD / BCKV / NIT-03(e) / 2023-24 (Sl. No. 4)

Amount

Supplying of 11 KV Resin Cast current transformer having ration 150/5A. Core 1, 15 VA, Class 5P10, STC – 18.4 KV for 1 Sec, Bill – 12/28/75KV Make - Bicolor

11 KV Resin cast potential transformer 100 VA, 110 Volt, Class 0.5 indoor type with fuse (Make - Bicolor)

H.T. gear oil typical physical characteristics a) ISO Viscosity 32 grades – 100 b) Viscosity, CST 5.25 100 degree C. – 10.90 c) Viscosity Index 99 - 95 d) Power Point 18 – 9 e) Flash point 210 COC – 244 f) Colour – David Brown

Cleaning, servicing, tightness checking (control circuit & HT part) of Three Panel HT Switch Gear by air suction blower, CRC / WD 40 and soft cloth. Through checking & Servicing required for tripping and closing system (Manual & Electrical) as per direction of EIC. Mechanical Operation Test: 5 Opening - 0.3 sec- Close Open Operations at 100% control voltage. Curve should be maintained by operation analyser / osiciloscope & Result should be within the limits. Voltage test on control & auxiliary circuit should withstand for one minute.

CRM Test, Timing Test, Triping Test of 2 nos H.T outgoing by secondery injection Kit & Re-commissioning of 11 kV out-going breaker as per direction of EIC. Test & Service Report & instrument calibration report of above mention 11kV Breaker Should be submitted 4 copies within 3 days of testing

Cleaning( by Soft Cloth & CRC ) ,servicing,tightness checking of bus bar and all terminal of LT ACB (415 V) and panel .ON-OFF checking, Spring charge of LT (415V)ACB and bus coupler operation as per direction of EIC.

Removal of HT Cable from both end & Meggering each leads of the cable to check its insulation. Reconnect the Same.

AVO ENGINEERING ENTERPRISE

MONDAL ELECTRIC