西门子6GK7343-5FA01-0XE0

6GK7343-5FA01-0XE0

电动机起动困难，额定负载时，电动机转速低于额定转速较多

  1、故障原因

①电源电压过低；

②面接法电机误接；

③转子开焊或断裂；

④转子局部线圈错接、接反；

③修复电机绕组时增加匝数过多；

⑤电机过载。　

2、故障排除

①测量电源电压，设法改善；

②纠正接法；

③检查开焊和断点并修复；

④查出误接处予以改正；

⑤恢复正确匝数；

⑥减载。

通电后电动机不能转动，但无异响，也和冒烟？   1、故障原因

①电源未通（至少两相未通）；

②熔丝熔断（至少两相熔断）；

③过流继电器调得过小；

④控制设备接线错误。

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