14-08-2018 дата публикации
Номер: KR101888788B1
The present invention relates to a permanent magnetic actuator for operating a circuit breaker of a power device, wherein the length of a shaft and a housing is reduced. According to the present invention, the permanent magnetic actuator for operating a circuit breaker comprises the housing, the shaft, first and second springs, a coil, a permanent magnet, and an actuator. The housing has a predetermined storage space formed therein. The shaft penetrates the housing to expose a part of both ends to the outside of the housing, and is formed to be able to horizontally move in the housing. The first spring surrounds the upper circumference of the shaft, and the second spring is disposed on the lower part of the first spring and surrounds the lower circumference of the shaft. The coil is disposed along the inner circumference of an insulation container, and receives a normal or reverse current to form a normal or reverse magnetic field. The permanent magnet is disposed between the first spring ...
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