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Protection functions
    • Optical Pilot Channel (FO)

    • Current Differential Protection (87L)

    • Phase Overcurrent Protection (50/51P)

    • Earth Fault Overcurrent Protection (50/51G)

    • Negative-sequence Overcurrent Protection (50/51Q)

    • RMS Overcurrent Protection (50/51R)

    • Broken Conductor Protection (46BC)

    • Phase Overvoltage Protection (59P)

    • Residual Overvoltage Protection (59G)

    • Negative-sequence Overvoltage Protection (59Q)

    • Positive-sequence Overvoltage Protection (59Pos)

    • Phase Undervoltage Protection (27P)

    • Overfrequency Protection (81O)

    • Underfrequency Protection (81U)

    • Frequency Rate-of-change Protection (81R)

    • Reverse Power Protection (32R)

    • Undercurrent Protection (37)

    • Breaker Failure Protection (50BF)

    • Switch-on-to-Fault Protection (SOTF)

    • Thermal Overload Protection (49)

    • Arc Flash Protection (50L/NL)

    • Transfer Trip (TT)

    • Automatic Reclosure (79)

    • Fault Location (FL)


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