With the much higher operating voltages now in use the projected voltage transients or surges due to switching i. e. the opening and closing of circuit breakers, have become the major consideration.

目前随着更高工作电压的使用，由于断路器分闸、合闸操作所引起的电压暂态过程或过电压．已成为主要考虑的方面。

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Its control circuit with double electromagnetic system can ensure synchronous closing, silent and energy saving operation of two contactors in parallel.

双电磁系统控制电路确保两台并联接触器的同步闭合和无声节电运行。

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The burn of circuit breaker closing coils and contactors is a common problem in the switchyard operates.

断路器控制回路的合闸线圈和接触器烧毁现象是变电运行工作中经常遇到的普遍问题。

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Monday's announcement comes one week after Circuit City said it was closing 155 of its more than 700 stores in 55 markets by the end of the year and firing about 17.0% of its U.S. work force.

FORBES: Magazine Article

The announcement comes one week after Circuit City said it was closing 155 of its more than 700 stores in 55 markets by the end of the year and firing about 17.0% of its work force in the U.S. It also said it was considering all options to restructure.

FORBES: Magazine Article

Shares of Pandora dropped nearly 20% shortly before the closing bell, after tripping two circuit breakers in 10 minutes.

FORBES: Pandora Investors Singin' The Blues: Shares Plunge After Report Of Apple Radio in 2013