flender coupling distributors H2-DV3-B Helical gear Reduction Boxes H2

Flender/Flender Gear Units/Helical gear Reduction Boxes H2

all be provided with air conditioning facilities. MCC shall have duplicate incoming supply. MCC will have Incomer and Bus-coupler as ACBs whose minimum rating shall be 6 Amps. There shall also interlocking between two incomers and bus coupler of motor control centre so that on ly two can be ON at time. All outgoing feeders of PDB and further down below more than th rating of 2A shall be fed by MCCBs. All MCCBs shall have Microproces sor based numerical releases fo (minimum) over current, short circuit and earth fault releases. Auto Bus Transfer (ABT) scheme shall be provided for HT and LT substations using singl microprocessor based unit ca pable of communicating with SCADA. Power supply to miscellaneous loads like /, Power sockets, We lding sockets, Cranes etc shall be fed through dedicated ACDB/PDB. For Substation auxiliary , SAS system, UPS ,Battery Chargers the LT power supply shall be fed from dedicated ACDB/PDB. PDBs shall be two nos. ACB/MCCB incomer with bus coupler. All the PDBs shall have One incomer from normal power Supply and other incomer shall be fed from DG set power supply. Motor space heater power supply shall be fed from respective MC having 4/2V isolation transformer for this purpose. Space heaters will be in power supply. Base frame/ base channel/ base plate, if required for 6.6kV/4 switchboards to flush them with FFL shall be under scope of Bidder. Similarly cross channels shall be provided by the Bidder over cable trenches & floor cutouts for installation of these switchboards. Earthing ring shall be provide around the shop. It will consist of earth pits and strip joining them. 1 of 1 INDRADHANUSH GAS GRID LIMITED TECHNICAL SPECIFICATION FOR NATURAL GAS COMPRESSOR STATION FOR NORTH EAST GAS GRID PIPELINE PROJECT ______________________________________________________________________________________________ TS NO.: MEC//2UU/0/2/0