Phase Logic

The individual UOV Phase Logic settings control the method by which measured voltages are evaluated against their respective Pickup and Normal thresholds.

This setting determines the conditions required to generate UOV protection pickup or reset events.

• AND – When ALL the measured phase voltages deviate beyond the UOV thresholds.

• OR – When ANY measured phase voltage deviates beyond the UOV thresholds.

• Average – When the numerical average of all three measured phase voltages deviates beyond the UOV thresholds.