The RCS-924 relay provides current differential protection with overcurrent elements for one-and-a-half breaker and ring breaker applications. It integrates 3 or 4 CT inputs for three-terminal or four-terminal system. It provides overcurrent elements for energizing a faulty bus or energizing a faulty line. It is fully compatible with IEC 61850 communication.

3-terminal or 4-terminal current differential protection. (87)

Two-level phase overcurrent protection. (50P/51P)

Overcurrent protection for energizing a faulty bus or a faulty line. (50E

CT failure detection logic.