H - Electricity – 05 – K
Patent
H - Electricity
05
K
347/4
H05K 7/20 (2006.01) H01F 27/18 (2006.01) H02H 5/08 (2006.01)
Patent
CA 1111540
¦ ABSTRACT OF THE DISCLOSURE Overpressure protection for a vaporization cooled electrical inductive apparatus. A pressure responsive device is actuated by a predetermined pressure within a sealed housing and de-energizes a pump, thereby stopping the flow of dielectric fluid to the heat producing members which prevents further pressure increases within a tank due to continued vaporization of the dielectric fluid. In one embodiment, a discharge valve is actuated by the pressure responsive device to drain the dielectric fluid from the windings to prevent further pressure increases caused by continued vaporization of the dielectric fluid. A fusible link is provided to disconnect the windings of the electri- cal inductive apparatus from a source of electrical poten- tial subsequent to the de-energization of the pump. In another embodiment, the pressure responsive device actuates the circuit breaker which disconnects the windings of the electrical inductive apparatus from the source of electrical potential.
309777
Mcconnell And Fox
Westinghouse Electric Corporation
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