Closing resistor switch for gas insulated circuit breaker

Details Closing resistor switch for gas insulated circuit breaker Closing resistor switch for gas insulated circuit breaker

1975-12-02

1978-01-17

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200145, 338115, 338204, 338295, H01H 3316

Patent

active

040694062

ABSTRACT:
A high voltage gas insulated circuit breaker in which a resistance shunts the main interrupter contacts to control the magnitude of the surge voltage experienced when the interrupter is closing. The resistance includes a resistor switch comprising a plurality of stacks of resistor segments connected in parallel. The smaller surface area of the segments tends to resist cracking due to mechanical thermal stresses and provides a higher resistivity thereby being capable of withstanding more voltage. The parallel stacks of resistor segments provides for a more compact resistor switch without sacrificing the basic operational requirement.

REFERENCES:
patent: 2324047 (1943-07-01), Ryan
patent: 3576458 (1971-04-01), Smith, Jr.
patent: 3863041 (1975-01-01), Rostron et al.

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