P643 - 3 End Transformer Management Relay
- Comprehensive protection for 3 winding transformers, or 2 winding with dual breaker feeding on one side
- High and low impedance restricted earth fault (REF), Fast reset (less than 1 cycle) circuit breaker failure element
- Integral asset management capability: transformer thermal overload (IEEE Standard C57.91), loss of life (LOL) and through fault monitoring
- IEC 61850/DNP 3.0 redundant Ethernet, supporting self-healing ring, RSTP, dual homing, PRP or HSR
