Power monitoring

Details Power monitoring Power monitoring

1992-01-17

1999-07-27

Leja, Ronald W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

361 83, H02H 504

Patent

active

059300922

ABSTRACT:
The electrical power to a device, such as a pump, is monitored by multiplying a current signal with a voltage signal to provide a power signal. Typically when the power signal is outside a predetermined range, power to the device is interrupted.

REFERENCES:
patent: 3054952 (1962-09-01), Lehrmann
patent: 4034233 (1977-07-01), Leyde
patent: 4084075 (1978-04-01), Deffenbaugh
patent: 4419625 (1983-12-01), Bejot et al.
patent: 4473338 (1984-09-01), Garmong
patent: 4767280 (1988-08-01), Markuson et al.

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