Supply, Erection, Testing and Commissioning of 22 KV Bay Extension at 110/22KV Korkadu Substation in Puducherry under DDUGJY Scheme.

Preparation of detailed scheme, Bill of Materials with specifications, Equipment Layout drawings, Structure drawings, wiring diagram for the C&R Panels, Field to Panel interconnection cables schedule, Earthing Layout, etc and submit for necessary approval for procurement.

SUBSTATION EQUIPMENTS Supply, erection, testing and commissioning of 36KV; 2000Amps; 26.3KA short time rated three Pole Outdoor Porcelain Clad Vaccuum Circuit Breaker of ABB make with standard support structures and accessories . (Excluding Civil Foundation works)

Supply, erection, testing and commissioning of 22KV Oil Cooled Outdoor type Current Transformers having the following specifications: (Excluding Civil Foundation works) Ratio: 150-300-600/1-1A; Burden: 30/30VA; Class of Accuracy: 0.5/5P20 Voltage Rating: 36KV; 50 Hz. STR: 25KA for 3 Sec: Insulation Class:B.

Supply, erection, testing and commissioning of 800Amps Three Pole Gang Operated Heavy Duty 33KV AB Switch complete with operating road, handle, hevy duty Core Type insulators, etc. but without Intelocked Earth Switch.

Supply, erection, testing and commissioning of 800Amps Three Pole Gang Operated Heavy Duty 33KV AB Switch complete with operating road, handle, hevy duty Core Type insulators, etc. but with Intelocked Earth Switch.

Supply, erection, testing and commissioning of Weatherproof CT Junction Box having disconnector type Terminal Blocks along with necessary mounting supports.

Supply, erection, testing and commissioning of 33KV Heavy Duty Core Type Insulators for Bus Bar Supports.

Supply and installation of Disc Insulators with relevant metal parts for line stringing for the proposed new extended 22KV Bay.

Supply and provide ACSR (Zebra conductor) Down Conductors along with suitable Aluminium Clamps and Connectors.

Supply and installation of 75 mm IPS Aluminium Tubular Bus bar along with suitable Aluminium clamps and connectors for tapping and hooking up Equipments.

Supply and installation of 18KV; 5KA Distribution type Lightining Arresters with support clamps and suitable line jumpers for line protection.

STRUCTURES AND EARTHING Supply and erection of GI Tower Columns for the proposed Bay extension using Hot Dipped Galvanised Steel members and GI Fasteners, matching to the existing Tower Columns.

Supply and erection of GI Booms for the proposed Bay extension using Hot Dipped Galvanised Steel members and GI Fasteners, matching to the existing Tower Columns.

Supply and erection of CT Support Structures made out of Hot Dipped Galvanised Steel along with sutiable HDGI fastners.

Providing earth electrodes using 40mm Dia and 3 M Long MS Rod with take-off clamps at the top complete with necessary Ground enhacement chemical and associated consumables as per relevant Industrial practices.

Supply and laying of following sizes of Hot Dipped GI earth flats for making earth grid and earthing of structures and equipments at the proposed bay extension yard. 75X8mm GI Flat

50X6mm GI Flat

Providing GI (40mm Spiked Rod type Air terminal- 1 Meter Long) Lightning Conductor on top of the end structures as protection against direct lightning strikes.

Supply and installation of Danger Boards and other caution boards for the Bay

Supply and laying of following control cables from VCB and CT's to the Control and Relay Panel 12 Core 2.5 Sq. mm. Copper armoured cable

4 Core 2.5 sq. mm. Copper armoured cable

7 Core 2.5 sq. mm. Copper armoured Cable

Providing end termination for the following sizes of cables at the CT Juntion Box, C & R Panel and VCB 12 Core 2.5 Sq. mm. Copper armoured cable

4 Core 2.5 sq. mm. Copper armoured cable

7 Core 2.5 sq. mm. Copper armoured Cable

Supply and erection of 75mm GI Perforated cable trays with supports and other accessories upto the existing cable trays within the Extension yard.

Towards Supply and laying of 100mm Dia GI Pipes for cable routing from equipments to the Main Cable trenches.

CIVIL WORKS Towards cleaning of the Bay extnesion area prior to undertaking the erection works

Construction of foundation with required operating platform for 36KV VCB.

Construction of foundation for 36KV CT Supports.

Other miscellaenous civil works like demolitions, earth excavations, land fillings, existing trench cover opening and closing, etc for felicitaion of the above works.

GRENEL POWERS PVT.LTD.