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Protection and Control

    • Phase overcurrent protection (50/51P)

    • Earth fault overcurrent protection (50/51G)

    • Negative-sequence overcurrent protection (50/51Q)

    • RMS overcurrent protection (50/51R)

    • Phase overvoltage protection (59P)

    • Residual overvoltage protection (59G)

    • Negative-sequence overvoltage protection (59Q)

    • Positive-sequence overvoltage protection (59Pos)

    • Phase undervoltage protection (27P)

    • Undercurrent protection (37)

    • Breaker failure protection (50BF)

    • Current unbalance protection (60/50)

    • Voltage unbalance protection (60/59)

    • Phase voltage differential protection (87V)

    • Neutral point voltage differential protection (87VN)

    • Impedance protection (21C)

    • Thermal overload protection (49)


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