Methods and apparatus for protecting electrical reactors

Details Methods and apparatus for protecting electrical reactors Methods and apparatus for protecting electrical reactors

1981-08-17

1983-03-22

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

323211, 361 80, 364482, H02H 340

Patent

active

043778330

ABSTRACT:
A method of, and apparatus for, detecting shorted turns in an electrical reactor. The impedance of the reactor, and its rate of change, are monitored. A reduction in impedance which exceeds a predetermined rate of change indicates the impedance change is due to shorted turns, and not to some normal cause, such as temperature.

REFERENCES:
patent: 3731152 (1973-05-01), Rockefeller, Jr.
patent: 3989999 (1976-11-01), Thompson et al.
patent: 4068159 (1978-01-01), Gyugyi
patent: 4313169 (1982-01-01), Takagi et al.
patent: 4344143 (1982-08-01), Kurosawa et al.

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