Heat exchange – Intermediate fluent heat exchange material receiving and... – Liquid fluent heat exchange material
Patent
1977-08-08
1979-02-13
Geoghegan, Edgar W.
Heat exchange
Intermediate fluent heat exchange material receiving and...
Liquid fluent heat exchange material
310 64, H02K 900
Patent
active
041390571
ABSTRACT:
System for preventing moisture precipitation at sensitive machine parts and for measuring moisture to determine leaks within the housing of an electric machine in which the winding is cooled with water and in which a gas stream cooled by a heat exchanger is circulated within the housing. The gas circulating within the housing is passed in contact with a heat sink maintained at a temperature below any machine part within the housing. This precipitates moisture from the gas. The gas which is returned for cooling the machine parts has a low dew point which does not permit precipitation of moisture on the sensitive machine parts which are at a higher temperature. In addition recirculation of the cooled gas is continued until the moisture conditions in the circulating gas are stable or steady. Moisture conditions in the gas are then measured to determine fluctuations which indicate leakage of moisture into the housing.
REFERENCES:
patent: 2887593 (1959-05-01), Wiedemann
patent: 2893701 (1959-07-01), Bell
patent: 2970232 (1961-01-01), Kilbourne
patent: 3122668 (1964-02-01), Cuny
Geoghegan Edgar W.
Kraftwerk Union Aktiengesellschaft
Lerner Herbert L.
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