The authors introduce the troubles inspection methods of the manual control switch, speed control switch, gas-pressure control switch and relay box of electromagnetic retarders used in Yutong coaches.
介绍宇通客车电涡流缓速器手控开关、速度控制开关、气压控制开关、继电器盒等故障的检测方法。
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。
The relay box has long been checked by manual work. Its accuracy and efficiency can't meet the requirement of the modern aircraft.
飞机继电器盒长期以来一直采用人工方法进行检测，其检测精度和效率已不能满足现代飞机的使用要求。
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