Power Meter Block PM810MG

Under-voltage: Pickup and dropout set points are entered in volts. The per-phase under voltage alarm occurs when the per-phase voltage is equal to or below the pickup set point long enough to satisfy the specified pickup delay (in seconds). The under-voltage alarm clears when the phase voltage remains above the dropout set point for the specified dropout delay period.
Over-voltage: Pickup and dropout set points are entered in volts. The per-phase over voltage alarm occurs when the per-phase voltage is equal to or above the pickup set point long enough to satisfy the specified pickup delay (in seconds). The over-voltage alarm clears when the phase voltage remains below the dropout set point for the specified dropout delay period.
Unbalance Current: Pickup and dropout setpoints are entered in tenths of percent, based on the percentage difference between each phase current with respect to the average of all phase currents. For example, enter an unbalance of 7% as 70. The unbalance current alarm occurs when the phase current deviates from the average of the phase currents, by the percentage pickup setpoint, for the specified pickup delay. The alarm clears when the percentage difference between the phase current and the average of all phases remains below the dropout setpoint for the specified dropout delay period.
Unbalance Voltage: Pickup and dropout setpoints are entered in tenths of percent, based on the percentage difference between each phase voltage with respect to the average of all phase voltages. For example, enter an unbalance of 7% as 70. The unbalance voltage alarm occurs when the phase voltage deviates from the average of the phase voltages, by the percentage pickup set point for the specified pickup delay. The alarm clears when he percentage difference between the phase voltage and the average of all phases remains below the dropout setpoint for the specified dropout delay (in seconds).