Bevel-helical gearbox B3 g Hollow shaft for shrink disk HDH HDM H B3-SH-24B

Flender/Flender Gear Units/Bevel-helical gearbox B3

odular cases with proper testing facilities. Necess ary test plugs/test handles shall be supplied loose and shall be included in scope of supply. ) Complete signals from / to SCADA/Automation shall be routed thr ough numerical relay. Relay shall be selected accordingly so that Nu mber of IOs confirm to this requirement. Scheme shall be suitable for compl ete remote control & operation of the feeder through relay. For open and lose command from SCADA/ Automation through relay shall be routed through au relay to the trip/ close coil. Direct trip/ close coil switching throug BO is not permitted. ) Number of BI/ BO shall be decided as per the system requirement in line with the above specification however minimum 2 BI & 1 BO shall be considered in all the relays. ) Protective relays shall have LED indicating lamp to indicate op eration of relay and type of fault. ) Protective relay shall have facili ty to filter out inrush currents so that lower setting for short circuit protection could be utilized The protective relays shall be suitable for efficient and relia ble operation of the protection scheme described in the specification. Necessary aux iliary relays and timers required for interlocking schemes for multiplying of con tacts suiting contact duties of protective relays and monitoring of control supplies and circuits, lockout relay monitoring circuits etc. also required for the complete protection schemes described in the specific ation shall be provided. Relay ranges, exact type & number of aux. relays, timers shall be finalized during drawing approval stage. Further equirement of ux relays shall be as follows: ) All timers and Auxiliary relays shall have flag indicators. ) Each feeder will be provided with master trip relay. Master trip relay shall be hand reset and shall have 2 NO and 2 NC contacts wired to TB in addition to those required by the protection/control scheme. 1 of 1 INDRADHANUSH GAS GRID LIMITED TECH