H - Electricity – 01 – F
Patent
H - Electricity
01
F
336/14
H01F 27/18 (2006.01)
Patent
CA 1111916
VAPORIZATION COOLED ELECTRICAL INDUCTIVE APPARATUS ABSTRACT OF THE DISCLOSURE Electrical inductive apparatus cooled by a two- phase dielectric fluid which vaporizes within the normal operating temperature range of the apparatus. The electri- cal inductive apparatus consists of a sealed enclosure sur- rounding a magnetic core and electrical winding assembly. A non-condensable gas fills a major portion of the enclosure at no-load conditions to provide adequate dielectric strength around the apparatus and is substantially removed to a storage tank when the apparatus reaches normal operating conditions. The required volume of the storage reservoir is proportional to the free volume of the enclosure and the volume of liquid dielectric disposed therein. The bottom surface of the enclosure includes a recessed channel portion configured to closely surround the lower yoke of the mag- netic core and which serves to reduce the amount of liquid dielectric utilized and the free volume of the enclosure thereby minimizing the required volume of the storage re- servoir for the non-condensable gas.
315274
Mcconnell And Fox
Westinghouse Electric Corporation
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