2013年8月25日星期日

Air Circuit Breaker Introduction

A circuit breaker. Insulating medium is air. A manually (or electric) closing, with the closing position to maintain lock by acting on the tripping mechanism and having an arc extinguishing device electri cenergy meter switch, is being widely used below 500V AC and DC devices in the circuit in as connected, breaking and air circuit breaker current and short-circuit and overload fault currents. Air switch is the air circuit breaker in the circuit as connected, breaking and carrying rated mcb circuit breaker and short-circuit, overload fault current, and can line and load overload, short circuit, undervoltage and other circumstances, quickly breaking the circuit, for reliable protection. Breaker dynamic and static contact and touch bar design pattern varied, but to improve the circuit breaker breaking capacity is the main purpose. Currently, the use of certain contact structure, breaking the short-circuit current limiting peak limiting principle, to improve the breaking capacity of the circuit breaker has a significant role, and are widely used.

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