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為什么電流互感器屏蔽罩采用鋁合金材料
發布時間:2013/3/26  瀏覽:5966 - 返回

為了減少相間電流產生的磁場對電流互感器的影響,所以電流互感器一般須加上屏蔽罩,而屏蔽罩一般以鋁合金材料為主,但是目的既然是降低磁場,為什么采用鋁合金呢?

為了降低互感對儀器的影響,電流變化會引起磁場的變化,磁場的變化就會引起鋁合金外罩產生感應電流,根據楞次定律外罩會產生一個方向相反的磁場去抵消電流變化產生的磁場,這樣也就是降低了互感系數。

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