Electric motor and transformer load sensing technique

Details Electric motor and transformer load sensing technique Electric motor and transformer load sensing technique

1982-08-27

1984-01-24

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

361 93, 324 96, 250225, 455606, 455602, 350 9613, 350377, 34087028, H02H 708

Patent

active

044280173

ABSTRACT:
A Faraday rotator optical sensor in combination with optical fiber transmission means is employed to monitor overload current conditions in a high voltage electrical load and transmit this information to a low voltage signal processing circuit while providing desired isolation between the high voltage load and the low voltage signal processing circuit.

REFERENCES:
patent: 3605013 (1971-09-01), Yoshikawa et al.
patent: 3621390 (1971-11-01), Von Willisen
patent: 3662263 (1972-05-01), Bensel
patent: 3675125 (1972-07-01), Jaecklin
patent: 3964020 (1976-06-01), Dickerson
patent: 4075493 (1978-02-01), Wickersheim
patent: 4121122 (1978-10-01), Pokrandt
patent: 4156280 (1979-05-01), Griess

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