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低压接地电阻柜

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产品描述

  低压接地电阻柜是0.22KV~0.66KV低压系统中接地用电阻成套装置。为了提高0.66/0.38/0.22(KV)低压用电系统供电质量,减少因发生接地故障时引起的设备断电,发电厂的主厂房内低压用电系统应该采用高阻接地,这样不仅避免了单相接地时不必立即跳闸,而且当采用熔断器作为保护电器从而减少用电设备运行时烧毁的机率。

 

  当安装中性点接地电阻柜后,发生非金属性接地时,受接地点电阻的影响,流过接地点和中性点的电流有显著降低,同时非故障相电压上升也显著降低,零序电压值约为单相金属性接地的一半。

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