电动机过载保护通常采用继电器，而配电线路过载保护多采用断路器的长延时过电流脱扣器来完成。
Protection against motor over - load usually adopt thermal relay, but protection against line over - load usually adopt long delay over- current release of circuit- breaker.
本文还建立了电动机过载保护的硬件和软件平台，实现了电动机运行、过载保护、参数组态、监控的网络化。
The hardware and software is established. The motor's operation, overload protection, parameters configuration, monitoring can be achieved through the network.
以热保护为研究对象，充分考虑了电机的热积累现象，通过求解热平衡微分方程的方法，给出了新的电动机过载保护判据。
Based on the method of solving heat balance differential equation, a novel over-load protection criterion for electric motor is presented in the paper considering the heat accumulation of motor.
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