Repairing work of different electrical installation at 11/0.433 KV, 1X315 KVA Sub-Station of Chakchaka Bottling Plant in the dist. of Coochbehar under NMD-II, PHE Dte.

Amount

Dismantling & disconnection of Incoming & Outgoing HT cable, decantation of Transformer Oil from AVR up to Bushing dismantling of conservator tank with bucclze relay, OTI & WTI connection, dismantling of tank cover both Transformer & Controller, Checking of Carbon Roller, Tag & tail, limit switch, Checking of Synchronize Motor including operation check by out side supply, Cleaning of Buck boost & internal Bushing from Transformer to Controller, IR value testing of primary & secondary side, fitting & fixing of top cover with new gasket, fitting & fixing of conservator Tank after thorough cleaning, fitting of Transformer & Controller top cover with new gasket, filling of transformer Oil, connection of existing 11 KV XLPE incoming & outgoing cable, operational checking of Controller. Painting of AVR outside with radiator.

Dismantling & disconnection of HT & LT cable from 315 KVA Outdoor Transformer, dismantling of conservator tank, decantation of Transformer Oil up to HT & LT Bushing, dismantling of transformer top cover, HT & LT bushing opening & fitting with new gasket, cleaning of OFF Load Tap Changer with operational checking with outside handle, fitting & connection of internal HT & LT connection, fitting & fixing of Transformer Top cover with new gasket, fitting & fixing of conservator tank with bucclze relay. checking of control circuit checking of bucclze relay,OTI & WTI, filling of transformer oil with excess quantity (if required). Painting of 315 KVA Outdoor Transformer.

Dehydration & filtration of 7-12 KV 315 KVA AVR & 11/.433 KV Outdoor Transformer for remove of Moisture. Transformer Oil Testing after filtration from authorised Labroratory.

Repairing of 11 KV 400 Amps PASCAL make single Panel VCB by using of Insulated Spary, internal painting by Red Oxide after proper scratching, dismantling & disconnection of Incoming & Outgoing HT XLPE cable, replacement of damage spares like, Ammeter, Multi Function Meter, CTs etc .dismantling of all the insulated items, Spout, bushing tank, Bus bar, C.T.s Bus Insulator, PT spout, PT etc. including draw out VCB contact position checking, checking of 3 Nos. Interrupter, thorough painting inside after scraching, lubrication of all contact area, etc. checking of installed portion, operational checking of VCB on Test Position.

Opening of draw out 415 V 630 Amps Air Circuit Breaker. cleaning & servicing of ACB, cleaning of contactor Point, lubrication of ACB Contacts, checking of incoming of incoming cable with tightness, all other feeders, checking of all the contact point with nut bolts, heating of Bus bar by hot blower etc.

Supply,delivery,storage of following items:

a) 96x96mm Digital Ammeter

b) Multi Function Meter as per existing sample

c) Silica jel Breather for 315 KVA Transformer

d) Silica jel for above Breather.

e) TNC Switch for VCB

f) Transfor Oil for AVR & 315 KVA Transformer

Transportation charges for carrying of Transformer Oil, Filter Machine, materials required for above work from Kolkata to Chakchaka, New Coochbehar site including haulting up to 3 to 4 days at Chakchaka.

Hiring charges of suitable capacity D.G. Set for auxiliary power supply to operate Filter Macihine, heating arrangement of hot blower, testing of AVR, Transformer, VCB Panel, etc. for 3 days including fuel & lubricating oil.

Supply & delivery at site Online Double conversion fully Microprocessor controlled Digital Signal Processing, IGBT based UPS System. Make: ELTEK Input voltage range: 160V-270V, single phase Input frequency range: 48-52 Hz. Output voltage: 230V ± 1%, single phase Output frequency: 50 Hz. Inverter technology: PWM, IGBT based Waveform: Pure Sinusoidal Protection: Overload, Short Circuit, Mains Over/ Under Voltage, Low Battery, Surges & Spikes Special features: Static Bypass DC Bus: 36V Backup time: 15 minutes Battery spec.: 12V 7AH SMF Battery-3 nos. (inbuilt)

Add@18% GST

Add@1% Labour Walfare Cess

ORIENTAL ENGINEERING CO.

WEST BENGAL ENGINEERING CO.