35kv箱式变压器高压套管有放电现象怎样处理

2025-03-16 16:28:23
推荐回答(3个)
回答1:

查看放电是怎么产生的:
如果是污秽造成的,一般是潮湿天气或小雨,表面放电,则停电时清洁;

如果是套管是清洁的,法兰边沿放电,那是电场设计问题,应该是瓷套管,建议更换电容型的,可参考北京诺德威公司的干式变压器套管。

如果放电发生在高压顶端,注意一下接触和等位;

如果是充油瓷套管的法兰处,注意查看末屏套管

如果是其他原因,且伴随增长,建议早点更换。

回答2:

停电,清洁处理,可以考虑RTV。

回答3:

1、高压开关柜内放电一般是绝缘体性能下降、例如:触头盒、穿墙套管、断路器触臂绝缘体性能下降都可能造成开关柜有放电声音。
2、35KV开关柜母线相间及地最小距离不能小于300mm,带电体活动部位对地不小于360mm,户外相间不小于400mm。相间及相对地之间的安全距离尽可能加大,根据现场运行经验,距离最好不小于200mm;控制母线的制作工艺,避免尖端放电。

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