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电机温度过高的原因有哪些?

2024-11-22

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电机温度过高是我们经常遇到的一个问题。电机高温以后会导致绝缘性能降低、电机性能下降、寿命缩短还可能会引发设备事故。

我们从几个方面来分析电机温度升高的原因以及应对措施。

一、过载保护装置失效。电机长时间过载运行、引发电机温度升高。过载保护装置,包括热继电器、电机综合保护器、断路器等保护器件。

二、电机轴承润滑不良。第一个是保养不及时啊,缺油了。再一个就是油品的型号选择有问题。这个时候我们就需要检查润滑系统。

三、本身的电机原因,轴承损坏,转子有问题。这个时候就需要对电机然后进行一个检查和保养。

四、电机的电压有问题。当我们的运行电压有低于额定电压的5%或者超过额定电压的10%,这个时候电机就会发热。需要对电压进行调整。

五、环境温度过高,散热不好。也会引发电机的高温,这个时候我们就需要搞一些辅助的散热散热措施,用风机吹一吹。

六、频繁的启停也会引发电机的高温。因为电机在启动时电流会很大,然后它会有一个短暂的一个温。频繁的启停的话就会引发电机高温。

七、电机缺相运行,一般会伴随着嗡嗡声。短时间内温度会很高。这个缺相运行还是比较明显的。

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