实战技巧分享:三相电路的平均功率实战手册
很多刚接触三相电路的平均功率的朋友经常问:知识怎么处理?别急,这篇文章给你讲清楚。 电源 发出的平均功率,或一个三相负载所接收的平均功率的和。即 另一表示形式:若已知各相电压、电流的有效值或功率因素,则可写为: 1.对称的三相制中: 则 2.电机或负载连接或星形: 3.发电机或负载连接成三角形 综上得结论:在对称三相制中不论连接方式如何,平均功率总是等于线电压、线电流和功率因素三者乘积的 倍 注意:此处 是表示各相电流滞后于各对应相电压的角度,又是线电压和线电流之间的
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