Relay box is an operational device to tripping and closing of breaker instructed by protection, breaker controlling unit, monitor unit, and auxiliary device of breaker.
操作箱的作用是用来完成保护、断控单元、测控单元、断路器辅助装置对断路器跳合闸操作的装置。
Operational device is divided into soft-axle controller and connecting rod controller.
操纵装置可分为：软轴操纵器、连杆式操纵器。
Operational device is divided into soft-axle controller and connecting rod controller.
操纵装置可分为：软轴操纵器、连杆式操纵器。
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