Multiphase voltage monitor

Details Multiphase voltage monitor Multiphase voltage monitor

1980-02-26

1982-06-01

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Polyphase

324119, 324133, 340661, 361 90, G01R 1900, G08B 2100, H02H 320

Patent

active

043330509

ABSTRACT:
A monitor for a polyphase power line continuously compares the voltage on each phase of the power line with reference voltages that are selected percentages above and below the average of the power line voltages to detect voltage unbalance and with fixed voltages to detect high or low voltage conditions. The monitor is also responsive to phase sequence.

REFERENCES:
patent: 3525019 (1970-08-01), Lansch

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