郭老师您好,我想问下,10KV的开关柜做耐压试验,应该给多少电压?有没有该类标准?

2025-03-25 18:52:43
推荐回答(1个)
回答1:

根据《电气装置安装工程 电气设备交接试验标准》GB 50150-91 的规定,
10KV油浸变压器交流工频耐压试验标准为:出厂35kV,交接30kV;
10KV并联电抗器交流工频耐压试验标准为:出厂35kV,交接30kV;
10KV电压互感器交流工频耐压试验标准为:出厂30kV,交接27kV;
10KV断路器交流工频耐压试验标准为: 出厂30kV,交接27kV;
10KV电流互感器交流工频耐压试验标准为:出厂30kV,交接27kV;
10KV干式电抗器交流工频耐压试验标准为:出厂30kV,交接30kV;
10KV纯瓷或纯瓷充油套管交流工频耐压试验标准为:出厂30kV,交接30kV;
10KV固体有机绝缘套管工频耐压试验标准为:出厂30kV,交接27kV;
10KV支柱绝缘子交流工频耐压试验标准为:出厂42kV,交接42kV;
10KV隔离开关交流工频耐压试验标准为: 出厂42kV,交接42kV;
10KV干式变压器交流工频耐压试验标准为:出厂28kV,交接24kV;

如果开关柜需要总体打耐压,需要先弄清柜内的设备是什么,然后按柜内元件的最低耐压标准,作为总体耐压试验标准;如果开关柜的主体是柜壳及绝缘子,就按绝缘子的标准,打42kV既可;如果开关柜内部还有干式变压器,试验时没有拆除引线,一起打硬体耐压,出厂需要打28kV,交接需要打24kV;

当然交流耐压试验前,有些东西是必须要拆除引线的,如柜内的避雷器、过电压吸收装置,电压互感器的负荷、带电指示器等;

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