タイトルまたは説明

A circuit breaker is a switch with large current. Outdoor circuit breaker is the switch of outdoor power transmission and distribution lines. The vacuum circuit breaker is named because its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum.
Circuit breaker refers to the switching device that can close, carry and break the current under normal circuit conditions and can close, carry and break the current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The role of circuit breakers is to cut off and connect load circuits and cut off fault circuits. Vacuum outdoor circuit breaker is used to open and close the transmission circuit. It is suitable for frequent outdoor operation and has the advantage of arc extinguishing without maintenance. It is widely used in the distribution network.