Voltage protection relay 7SR191

thermalcurrentfor electric motors

The 7SR191 Capa is a numerical protection device with a highly comprehensive functional software package. Features The market for power capacitors is continually growing due to the expanding power network driven by increased customer demand. Power capacitors improve the performance, quality and efficiency of the system and minimize power loss. The Reyrolle 7SR191 Capa protection relay is designed with all of the necessary functionality for use on shunt connected distribution capacitor banks arranged in all of the common connection configurations: •Single star •Double star •Delta •H configuration The Reyrolle 7SR191 Capa is a numerical protection device with a highly comprehensive functional software package which includes a range of integral application functions aimed at reducing installation, commissioning, wiring and engineering time. •User selectable hardware configuration to suit different bank arrangements - 3 pole overcurrent + 1 pole unbalance - 1 pole overcurrent + 3 pole unbalance •Optional voltage inputs •Re-energisation blocking to prevent CB closing until the bank has self discharged •Overvoltage protection by integration analysis of current •Suitable for use with both internally/externally fused and fuseless capacitors •User programmable characteristics for all inverse voltage, current and thermal curves •Unbalance protection with natural spill compensation