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如何區別干式變壓器是銅芯或是鋁芯?

文章出處:本站 人氣:6800 發表時間:2022-01-10 10:46:18

1、看變壓器銘上的型號,如果是鋁線圈變壓器,應該有個L的符號,銅線圈變壓器就沒有這個符號。

2、從外觀來看,鋁線圈變壓器要苗條(瘦高)點,而銅線圈變壓器要矮胖點。并且總的體積要大些。

3、還有,就是用重量來鑒別。因為鋁的比重為2.7,而銅的比重為8.9。以變壓器銘上的重量(般這個數據不會作假)。去與其他廠家的銅線圈變壓器樣本上的重量對比。

4、其實,產品是正規大廠出品的話,信譽和質量應該可以相信的。另外從技術角度出發,環氧樹脂澆注的干式變壓器用鋁線圈,是不會有問題的,反而還好些。因為鋁的膨脹系數比銅更接近環氧樹脂的膨脹系數,對變壓器的可靠性更好些。所以在歐洲,多數環氧樹脂澆注變壓器都用鋁線圈的。只要制造質量過關,鋁線圈變壓器在使用中不會有什么問題的。

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