High voltage circuit breaker is a high-voltage switchgear with strong arc extinguishing device. It is an important switchgear in the power supply and distribution system. Its text conforms to QF. The high-voltage circuit breaker can not only open and close the normal line and fault line, but also connect and bear the short-circuit current for a certain time, and can automatically trip under the action of the protection device to remove the short-circuit fault.<br>
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