Protection Functions

• Over-fluxing (24)
• Under/Over-voltage (27/59)
• Undercurrent (37)
• Negative Phase Sequence Overcurrent (46NPS)
• Thermal Overload (49)
• Overcurrent (50, 51)
• Earth Fault (50G, 50N, 51G, 51N)
• Neutral Voltage Displacement (59N)
• High Impedance REF (64H)
• Biased Differential (87BD)
• High-set Differential (87HS)

Supervision Functions

• Circuit Breaker Fail (50BF)
• Trip Circuit Supervision (74TC)
• Inrush Detector (81HBL2)
• Over-fluxing Detector (81HBL5)

Monitoring Functions

• Primary/Secondary Currents Phases and Earth Direction
• Relay operate and restraint currents
• Positive Phase Sequence (PPS) Current
• Negative Phase Sequence (NPS) Current
• Zero Phase Sequence (ZPS) Current
• Thermal statusPrimary/Secondary Single Phase Voltage
• Frequency and Fluxing
• Historical Demand Record

Features

• Cold Load Settings
• Eight Settings Groups
• Password Protection - 2 levels
• User Programmable Logic
• Self Monitoring
• Circuit Breaker Trip Counters
• Fault, event and waveform records