Operating mechanism for a four-pole circuit breaker
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United States of America Patent
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Oct 18, 1994
Grant Date -
N/A
app pub date -
Oct 20, 1992
filing date -
Oct 29, 1991
priority date (Note) -
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Abstract
The operating mechanism of the four-pole circuit breaker comprises an auxiliary mechanism coupled to the main mechanism. The spring of the auxiliary mechanism exerts a torque on the bar, opposing the force of the contact springs when the circuit breaker completes its closing travel and when it is closed; the spring ceases to act on the bar when the circuit breaker has begun its opening travel and when it is open.
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