The Working Principle and Advantages of Vacuum Circuit Breakers

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2025-10-15 07:10:08 - Translate

The vacuum circuit breaker (VCB) is one of the most reliable and widely used devices in medium voltage power systems. It plays a critical role in electrical protection by interrupting fault currents quickly and safely. Unlike traditional oil or SF₆ circuit breakers, a vacuum circuit breaker uses a sealed vacuum chamber to extinguish the arc, offering high efficiency and environmental safety....

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