Gas-insulated stationary induction electrical apparatus
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United States of America Patent
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Feb 27, 1990
Grant Date -
N/A
app pub date -
Jun 28, 1989
filing date -
Jun 28, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gas-insulated stationary induction electrical apparatus comprising a first closed vessel sealingly accommodating therein a main body having an iron core formed by laminating silicon steel sheets and also having at least one set of windings each consisting of a high-voltage winding and a low-voltage winding which are disposed apart from the iron core on both sides thereof, and a liquid medium for effecting cooling and insulation; a second closed vessel formed of an insulating material and sealingly accommodating therein the first closed vessel; and an insulating gas under a predetermined pressure which is sealed within the gap between the first and second vessels, wherein the induction apparatus main body is submerged in the liquid medium.
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