通力电梯烧保险丝之后抱闸接触器粘连检测灯就不亮怎么回事

2025-03-15 17:40:34
推荐回答(1个)
回答1:

  电梯烧保险丝之后抱闸接触器粘连,说明是接触器的主触点烧坏粘死了。

 故障原因:
  a、负荷电流过大
  b、触头锈蚀严重
  c、触头严重损坏以致接触面减小造成接触不良
  d、超行程过小
  e、接触压力不足
  解决措施:
  a、查明原因采取措施
  b、清理接触器
  c、用细锉刀整修,必要时更换触头
  d、调整行程使其合适
  e、调整或更换弹簧
  7、主触头熔焊

交流接触器的维护要点

 在电气设备进行维护工作时,应从以下5点对接触器进行维护。
  1、外部维护:
  1)清扫外部灰尘;
  2)检查各紧固件是否松动,特别是导体连接部分,防止接触松动而发热;
  2、触点系统维护:
  1)检查动、静触点位置是否对正,三相是否同时闭合,如有问题应调节触点弹簧;
  2)检查触点磨损程度,磨损深度不得超过1mm,触点有烧损,开焊脱落时,须及时更换;轻微烧损时,一般不影响使用。清理触点时不允许使用砂纸,应使用整形锉;
  3)测量相间绝缘电阻,阻值不低于10MΩ;
  4)检查辅助触点动作是否灵活,触点行程应符合规定值,检查触点有无松动脱落,发现问题时,应及时修理或更换。
  3、铁芯部分维护:
  1)清扫灰尘,特别是运动部件及铁芯吸合接触面间;
  2)检查铁芯的紧固情况,铁芯松散会引起运行噪音加大;
  3)铁芯短路环有脱落或断裂要及时修复。
  4.电磁线圈维护:
  1)测量线圈绝缘电阻;
  2)线圈绝缘物有无变色、老化现象,线圈表面温度不应超过65°C;
  3)检查线圈引线连接,如有开焊、烧损应及时修复。
  5、灭弧罩部分维护:
  1)检查灭弧罩是否破损;
  2)灭弧罩位置有无松脱和位置变化;
  3)清除灭弧罩缝隙内的金属颗粒及杂物

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