NITNo31ItemNo2

Replacement of 1250 Amp LT ACB of Incomer No 2 & Bus Coupler in LT Panel Board at Nehru Vihar SPS including Supply of Microprocessor based 1250 Amperes. LT ACB, 3 Pole 415 V AC. EDO type, Make: L&T

Supply of Digital ammeters, 3 digit, AC, 50 Hz, Size 96 mm2, Make: AE / L&T / BCH/ Schneider / C&S

Supply of Digital Voltmeter, 3 digit, AC, 50 Hz, Size 96 mm2, Make: AE / L&T / BCH/ Schneider / C&S

Supply of Current Transformer 1250/5 ampere.

Supply of Indicating Lamps of Red, Yellow, Green Colour Make: Vaishno/ L&T / BCH / Siemens

Supply of Indicating Lamps of Blue Colour Make: Vaishno/ L&T / BCH / Siemens

Dismantling of old burnt LT ACB along with the fixed base from the Panel after disconnection of fixed contacts from the incoming & outgoing bus bars of the LT Panel.

Dust blowing & cleaning of the complete LT Panel board with the help of electric blower & manual labour.

Modification in the incoming & outgoing Bus bars of the ACB as per site requirement. The job also includes including providing of new links, bends, aluminum bus bar as per relevant IS having sufficient cross section area including providing of hardware required for connection/ joints shall be in high tensile.

Installation, Fixing & complete wiring by 1.5 sq mm single core copper wire including providing and fixing of necessary ferrules etc. Fixing of the ACB in the existing LT Panel Board including providing & fixing of the base frames of suitable sizes for ACB’s in the chamber. Modification in rack in system for ACB. The job also includes providing & fixing of new door as per site requirement.

Renovation of Outgoing LT OCB's and allied works Supply of Digital ammeters, AC, 50 Hz, Size 96 mm2, Make: AE / L&T / BCH/ Schneider / C&S

Supply of Digital Voltmeters, AC, 50 Hz, Size 96 mm2, Make: AE / L&T / BCH/ Schneider / C&S

Supply of Current Transformer 800/5 ampere.

Supply of Indicating Lamps of Red, Yellow, Green Colour Make: Vaishno/ L&T / BCH / Siemens

Supply of Indicating Lamps of Blue Colour Make: Vaishno/ L&T / BCH / Siemens

Dismantling of the existing faulty measuring & indicating instruments after taking the shutdown of the panels. The job also includes opening of the bus bar of the incoming & outgoings for dismantling of the CT’s.

Fixing of the newly supplied voltmeters, ampere meters, CT’s, indicating lamps & Ventilation fans in the LT Panel board. The job also includes providing of the consumable items required for the job.

Complete control wiring by of the LT Panel Board with suitable size of single core PVC insulated copper wire including providing of ferrules & other consumable items required for the job.

Supply of Fixed Copper main Block Contact (Jaw Contacts) of for the 800 Amp OCB's as per sample.

Supply of Moving Copper Contact (Bar) for the 800 Amp OCB's as per Sample.

Complete overhauling of the 800 Amp OCB’s installed on the outgoings including replacement of burnt contacts (supplied above), No Volt Coil, Overload Relay Coil with assembly as per sample and replacement of the transformer oil.

Fabrication, supply installation of additional outgoing feeders by carrying out the following works Supply of Microprocessor based 800 A, 70 KA, 3 Pole MCCB with spreader terminals and adjustable thermal magnetic release Make: L&T / BCH/ Schneider

Fabrication, Supply and installation of floor mounting cubical type box, dust & vermin proof construction, of the minimum size 1 square meter of face area, suitable for indoor fixing, made out of 16 SWG CRCA sheet (frame of 14 SWG) along with neutral link suitable for installation of 800 Amp MCCB. The rating of main bus bars has to be 1000 Ampere in Aluminium construction duly sleeved with phase indicating heat shrinkable Sleeves to be fixed at top Bus Bar Chamber. The job also includes connection of the Bus bars with the main bus bars of the existing panel Board.

Supply of Indicating Lamps of Red, Yellow, Green Colour Make: Vaishno/ L&T / BCH / Siemens

Testing & commissioning of work as per the satisfaction of the engineer in charge.

Gupta Brothers

Premier Engineering Company

Goodwill Enterprises