三相异步电动机是木工设备和排灌机械的主要动力源，若使用时数过长或使用不当，电动机常会发生空载不转或转速慢的故障。现将该故障的诊断方法介绍如下。１故障分析分析故障前，首先要了解故障发生情况，一般可按下列程序进行。①明：明了电动机的规格、构造、特性及电动... Three-phase asynchronous motor is the main power source of woodworking equipment and irrigation machinery. If the number of hours used is too long or not used properly, the motor will often fail with no load or slow speed. Now the fault diagnosis method is as follows. A failure analysis and analysis Before the failure, we must first understand the occurrence of the failure, generally according to the following procedure. ① Ming: clear motor specifications, structure, characteristics and electric ...