变压器损耗率一般是多少?变压器损耗率计算公式

变压器损耗率一般是多少?变压器损耗率计算公式

变压器利用电磁感应原理改变交流电压。

变比

$\frac{U_1}{U_2} = \frac{N_1}{N_2} = k$文章源自公式库网-https://www.gongshiku.com/html/201808/bianyaqisunhaoshuaiyibanshiduoshaobianyaqisunhaoshuaijisuangongshi.html

电流关系

$\frac{I_1}{I_2} = \frac{N_2}{N_1} = \frac{1}{k}$文章源自公式库网-https://www.gongshiku.com/html/201808/bianyaqisunhaoshuaiyibanshiduoshaobianyaqisunhaoshuaijisuangongshi.html

容量

$S = UI$ （kVA）文章源自公式库网-https://www.gongshiku.com/html/201808/bianyaqisunhaoshuaiyibanshiduoshaobianyaqisunhaoshuaijisuangongshi.html

文章源自公式库网-https://www.gongshiku.com/html/201808/bianyaqisunhaoshuaiyibanshiduoshaobianyaqisunhaoshuaijisuangongshi.html

⚡ 理想变压器输入输出功率相等。文章源自公式库网-https://www.gongshiku.com/html/201808/bianyaqisunhaoshuaiyibanshiduoshaobianyaqisunhaoshuaijisuangongshi.html 文章源自公式库网-https://www.gongshiku.com/html/201808/bianyaqisunhaoshuaiyibanshiduoshaobianyaqisunhaoshuaijisuangongshi.html文章源自公式库网-https://www.gongshiku.com/html/201808/bianyaqisunhaoshuaiyibanshiduoshaobianyaqisunhaoshuaijisuangongshi.html