时间继电器是一种利用电磁原理或机械原理实现延时控制的控制电器。
Time relay is a use of electromagnetic principle or mechanical theory to realize delay control control electric appliance.
绞线机、合绳机电气控制设备中的时间继电器故障率较高，是影响这类设备正常运行的主要原因。
Higher fault rate of time relay in the electricity control apparatus of strander and closer is the main reason causing this kind of equipment to work off normal.
介绍了风机、水泵类负载起动时间大于15秒以上时，采用热继电器保护的方法，及控制线路在风机上应用的效果。
The article introduces detailedly the methods which are used to protect the hot relays when the fans and pumps loaded starting time is over 15 seconds.
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