Missing phase detector

Details Missing phase detector Missing phase detector

1983-09-01

1985-09-17

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 76, 340663, 307127, H02H 324

Patent

active

045424330

ABSTRACT:
A multiphase imbalance monitor utilizes a resistive summing network for sampling the ac voltage in each phase of the system under consideration. The summing network provides a zero voltage output under normal conditions. When a phase imbalance or missing phase condition occurs, the summing network provides a finite output voltage which can be used to actuate indicating and/or interrupting means.

REFERENCES:
patent: 3286129 (1966-11-01), Gagniere
patent: 3401308 (1968-09-01), Darke
patent: 4099215 (1978-07-01), Parrier et al.

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