Protection Relay

The overcurrent protection relay detects the fault current caused by short circuit, overload and earth fault of the line and protects the line by opening the breaker. The digital overcurrent relay is capable of setting various curves and currents and can easily record and analyze accidents.

50/51, 50N/51N, UBOC

• • Overcurrent protection
• • Load imbalance detection
• • OLTC blocking
• • Current measurement for each phase
• • Self-diagnosis
• • Breaker operation status monitoring and controlling
• • Fault recording and analysis