功率因素Power factor和电压,频率的关系:电压和频率越小,PF越大

品质协会

之前，针对一个电子产品做过测试，电压和频率越小，功率因素Power factor(PF)越大。如下是测试数据，仅供参考。

63Hz:
Voltage = 265V, PF = 0.788,
Voltage = 260V, PF = 0.803,
Voltage = 240V, PF = 0.831
Voltage = 220V, PF = 0.869
Voltage = 198V, PF = 0.893
220V:
Frequency = 63Hz, PF = 0.867
Frequency = 60Hz, PF = 0.877
Frequency = 50Hz, PF = 0.894
Frequency = 47Hz, PF = 0.915

下面还有一组数据

240V:

Frequency = 63Hz, PF = 0.830
Frequency = 60Hz, PF = 0.845
Frequency = 50Hz, PF = 0.877
Frequency = 47Hz, PF = 0.882

品质协会

什么是功率因数(Power factor)? 影响PF的因素是什么?如何提高
http://www.pinzhi.org/forum.php?mod=viewthread&tid=1856

flyerchang

谢谢分享