Three-Phase Power Disturbance Monitor

摘要

The report describes a newly developed three-phase power disturbance monitor which consists of an overvoltage sensor counter, undervoltage sensor counter, low threshold pulse transient sensor counter, high threshold sensor counter and an over-under frequency sensor counter. The monitor will simultaneously monitor voltage or frequency variations and pulse transients of either positive or negative polarity on all phases of a 120/208, three-phase, 50-60 hertz power distribution circuit. (Author)