Contact material for vacuum circuit breaker

Details Contact material for vacuum circuit breaker Contact material for vacuum circuit breaker

1985-12-05

1987-06-30

Budd, Mark O.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200265, 75228, 420428, 420469, H01H 930

Patent

active

046772642

ABSTRACT:
The present invention provides a contact material for a vacuum circuit breaker containing therein copper (Cu) and chromium (Cr) with further addition of at least one kind of boride selected from borides of chromium (Cr), molybdenum (Mo) and tungsten (W). Such contact material possesses remarkable advantages of having large current breaking capability and high voltage withstand capability.

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US-Z: Proceedings of the 12th International Conference on Electric Contact Phenomena 1984, S.349-355.

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