高压风机使用中如果电机烧毁的原因及解决方法

  • Article source:Industry News
  • Website editor:莱诺真空泵
  • Reading volume:
  • Publication time:2022-08-18 14:29:30

高压风机是一种使用非常广泛的设备,给我们的生产带来了很大的帮助。而高压风机电机烧毁,是使用高压风机过程中常见的故障。而引起电机烧毁主要有:电机缺相,电机超负荷运转,机械故障等引起的。今天,本文将着重从电气角度分析电机绕组烧损的原因,并提出相应的处理方法。

一、过载运行

1.故障现象

高压风机长期处于高压力区运行,导致电机轴功率加大,电动机电流超过额定值;电动机温升超过额定温升。或者异物吸入高压风机内,是电机处于超负荷运行,或者电机轴承无润滑脂或砂架损坏;定、转子铁心相磨擦,俗称扫膛

2.检查结果电机三组绕组全部烧毁;

3.故障原因及处理方法

(1)当高压风机长期处于高压力区运行时,应适当地卸压或更换功率合适的电动机。

(2)异物吸入高压风机内,致使电动机过载而烧坏电机绕组。检查高压风机的前端部采取措施处理异物,使之转动灵活。

二、缺相运行

1.故障现象

电机不能起动,即使空载能起起动,转速慢慢上升,有嗡嗡声;电机冒烟发热,并伴有烧焦味。

2.检查结果

拆下电机端盖,可看到绕组端部有1/3或2/3的较相绕组或焦或变成深棕色。

3.故障原因及处理方法

(1)电动机供电回路熔丝回路接触不良或受机械损伤,致使某相熔丝熔断。

(2)电动机供电回路三相熔丝规格不同,容量小的熔丝烧断。应根据电动机功率大小,更换为规格相同的熔丝。

(3)电动机供电回路中的开关(隔离开关、胶盖开关等)及接触器的触头接触不良(烧伤或松脱)。修复并调整动、静触头,使之接触良好。

(4)线路某相缺相。查出断线处,并连接牢固。

(5)电动机绕组连线间虚焊,导致接触不良。认真检查电动机绕组连接线并焊牢。

Article source:https://www.leynow.com.cn/news/646.html

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LeyNow Company is a high-tech enterprise that develops, sells vacuum pumps and provides solutions in the vacuum field. It provides users with the most reliable, safe and easy-to-use vacuum equipment products and high-quality professional services to help global customers and partners achieve success. The company's main products include: rotary vane vacuum pumps, screw vacuum pumps, Roots vacuum pumps, piston vacuum pumps, etc.

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