The vacuum circuit breaker with permanent magnetic actuator developed by ABB Company in 1997 adopts a double-stable double-coil structure in its actuator.
ABB公司于1997年研制的永磁机构真空断路器，其永磁机构采用双稳态双线圈结构。
The vacuum circuit breaker with permanent magnetic actuator developed by ABB Company in 1997 adopts a double-stable double-coil structure in its actuator.
ABB公司于1997年研制的永磁机构真空断路器，其永磁机构采用双稳态双线圈结构。
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