Combined Station Works for Replacement of the existing Variable Frequency Drive (VFD) System at GSPL, Bongaigaon

Variable Frequency Drives: Installation including transportation from owner desginated location, testing and commissioning of owner supplied Variable frequency drives on foundation channels including aligning, levelling, grouting etc., Making all the inter- connections with HT Breakers, hot standby PLC of VFD system & Motors for incoming/outgoing/ Power / control cables (All as applicable). Making holes for cable entries, if required and blinding the spare cable entry holes, with materials i.e. WP Cable glands, end lugs, earthing of VFD board, labour, tools and tackles, consumables etc , as per drawings, specification and directions of Site Engineer / Engineer-in-Charge. (Note: Commissioning assistance (only supervision) shall be provided by supplier of the VFD.)

HT SWITCHBOARD (6.6/11 KV) - Erection, Installation including transportation from owner desginated location, testing and commissioning of HT Switch Board consisting of VCB's and other accessories including termination of all LT/control cables, installation on foundation channels, drilling, cutting, welding, aligning, levelling, grouting, assembling and fitting all accessories / instruments / relays, relay coordination, CT, PT, Numerical Relay with basic features like O/C, E/F and additional protections etc., connection of 230 V Supply / battery bank 110 V DC supply, earthing of HT Switchboard, making all the interconnections/ outgoing/incoming LT power & control cable connections including making holes for cable entries as required with materials i.e. WP Cable glands, end lugs, labour, tools and tackles, consumables etc , as per drawings, specification and directions of Site Engineer / Engineer-in-Charge. (Note: Commissioning assistance (Only Supervision) shall be provided by the supplier of the HT Switch Board.): HT Switchboard with upto 10 VCB

Power cables HT Cable Laying - Laying of all type of cables HT (PVC / XLPE / Armoured/Unarmoured/Power/ Control/ Signalling) in trenches, in cable racks, in trays, in protective pipes, poles, columns, in conduits, in panels and on structures etc.; including the supply and installation of all required materials such as fixing clamps, screws, cable straps, tags, etc. as required (other than the supply of the conduits, cables, pipes, cable racks, trays, poles, structures and panels) complete in all respect, including cost of all labour, tools, consumable materials, etc. and cutting the cables in required lengths as per drawings, specification and directions of Site Engineer / Engineer-in-Charge:

HT Cable Termination (6.6/11 KV) - Supply, termination and connection of XLPE cable termination kit (indoor type), heat shrinkable sleeve type of Raychem/M-Seal/CCI make with all accessories, including requisite glands, lugs, cutting (tools and accessories for termination should meet the selected standards), stripping of cable insulation providing copper cable end lugs and cable glands as required, restoration of insulation, supplying and providing the cable supporting clamps, straps, cable tags connection to the terminals of HT panel, VFDs, Isolators, transformer, DG,MLPU/Booster pump motors etc., earthing of armouring, materials, labour, tools and tackles, consumables etc , as per drawings, specification and directions of Site Engineer / Engineer-in-Charge: HT Cable of size upto 3Cx240 sq. mm

4C x 4 sq. mm. Cu. Control cable- CABLE SUPPLY & LAYING : Supply, laying & testing of XLPE insulated, FRLS property on outer sheath, PVC sheathed armoured 1.1 kV grade control & power cables with copper / Aluminium conductor conforming to IS 7098 (P-1) latest edition including supply of lugs, glands, consummables, tools, tackles, labour complete. Note: Cable length shall be measured after laying.

Power cables LT : OD above 20 mm and upto 40 mm- Cable Laying - Laying of all type of cables LT (PVC / XLPE / Armoured/Unarmoured/Power/ Control/ Signalling) in trenches, in cable racks, in trays, in protective pipes, poles, columns, in conduits, in panels and on structures etc.; including the supply and installation of all required materials such as fixing clamps, screws, cable straps, tags, etc. as required (other than the supply of the conduits, cables, pipes, cable racks, trays, poles, structures and panels) complete in all respect, including cost of all labour, tools, consumable materials, etc. and cutting the cables in required lengths as per drawings, specification and directions of Site Engineer / Engineer-in-Charge:

LT CABLE END TERMINATION FOR ARMOURED PVC INSULATED ALUMINIUM CABLE WITH SINGLE COMPRESSION BRASS GLANDING (INCLUDING COST OF GLANDS & LUGS)- AL,4CX25 mm²

LT CABLE END TERMINATION FOR ARMOURED PVC INSULATED ALUMINIUM CABLE WITH SINGLE COMPRESSION BRASS GLANDING (INCLUDING COST OF GLANDS & LUGS)- 4C x 4 sq. mm. Cu.