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交流電的電壓計算方法

發布日期:2022-04-28 點擊率:13

如何來計算交流電的電壓大小,在交流電中等效功率方法怎么用,在計算電壓的公式中,各參數的含義是什么,一起來了解下。

交流電的電壓計算方法

使用等效功率方法來計算:Q = W=UIT=I^2Rt=u^2/R×t

R為導體的電阻,t 為電流通過導體的時間,Q為電流在電阻上產生的熱量。

以上計算公式只適用于電熱器。

正余弦交流電的峰值與振幅相對應,有效值大小由相同時間內產生相當焦耳熱的直流電的大小來等效。

交流電峰值與均方根值的關系:Vpeak=√2Vrms。

市電220V表示均方根值,其峰值為311V。

以上簡單介紹了交流電的電壓計算方法,希望對大家有所幫助。 

相關閱讀:

1、什么叫直流電?什么是交流電?

2、直流電與交流電的優點與缺點

3、直流電與交流電的區別

下一篇: PLC、DCS、FCS三大控

上一篇: 220v交流電的電壓大小

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