Cooling medium temperature monitoring system for rotary electric

Communications: electrical – Condition responsive indicating system – Specific condition

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340679, G08B 1700

Patent

active

047332255

ABSTRACT:
A cooling medium temperature monitoring system for a rotary electric machine for cooling stator coils by as cooling medium flowing in a plurality of cooling medium passages provided in the stator coils, has a plurality of temperature detectors for measuring the temperatures of the cooling medium in the outlets of the plurality of cooling medium passages; and a circuit for setting the temperature warning value at a value which is responsive to the output of a generator, and a calculator circuit for comparing the detected outputs of the temperature detectors with the set value of the warning value setting circuit to generate an alarm signal when the output of any one of the detectors exceed the set warning value.

REFERENCES:
patent: 3601689 (1971-08-01), Kettler
patent: 4113211 (1978-09-01), Glazar
patent: 4316175 (1982-02-01), Korber et al.
patent: 4330808 (1982-05-01), Sawada et al.
patent: 4364032 (1982-12-01), Narato et al.
patent: 4470092 (1984-09-01), Lombardi
ASME Publication 81-JPGC-Pwr-23; Generator Monitoring System by F. T. Emery, 1981.

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