High-voltage electrical apparatus utilizing an insulating gas of sulfur hexafluoride and helium

Title: High-voltage electrical apparatus utilizing an insulating gas of sulfur hexafluoride and helium

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High-voltage electrical apparatus includes an outer housing at low potential, an inner electrode disposed within the outer housing at high potential with respect thereto, and support means for insulatably supporting the inner electrode within the outer housing. Conducting particles contaminate the interior of the outer housing, and an insulating gas electrically insulates the inner electrode from the outer housing even in the presence of the conducting particles. The insulating gas is comprised of sulfur hexafluoride at a partial pressure of from about 2.9 to about 3.4 atmospheres absolute, and helium at a partial pressure from about 1.1 to about 11.4 atmospheres absolute. The sulfur hexafluoride comprises between 20 and 65 volume percent of the insulating gas.

Inventors:

Wootton, Roy E. ^[1]

(Murrysville, PA)

Issue Date:: 1980-01-01

OSTI Identifier:: 863515

Assignee:: Westinghouse Electric Corp. (Pittsburgh, PA) OSTI

Patent Number(s):: US 4190733

Contract Number:: EX-76-C-01-2125

Research Org:: Westinghouse Electric Corp

Country of Publication:: United States

Language:: English

Subject:: high-voltage; electrical; apparatus; utilizing; insulating; gas; sulfur; hexafluoride; helium; outer; housing; potential; inner; electrode; disposed; respect; thereto; support; means; insulatably; supporting; conducting; particles; contaminate; interior; electrically; insulates; presence; comprised; partial; pressure; atmospheres; absolute; 11; comprises; 20; 65; volume; percent; conducting particles; gas electrically; voltage electrical; inner electrode; sulfur hexafluoride; volume percent; outer housing; support means; partial pressure; insulating gas; electrical apparatus; electrode disposed; apparatus utilizing; respect thereto; insulatably supporting; high-voltage electrical; voltage electric; electrically insulate; /174/252/

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