精确测量低功率因数电路有功功率的一种方法  

A Method of Accurate Measuring Low- power Factor Circuit Active Power

作　　者：张泽礼[1] 

机构地区：[1]滨州职业学院

出　　处：《上海电器技术》2008年第1期12-15,共4页Shanghai Electric Appliance Technology

摘　　要：在节能问题研究中，经常需要测量有功损耗只有几瓦的低功率因数负载的有功功率。由于功率表的灵敏度较低，因此直接测量的精确度很低。采用电流互感器倒置使用并对负载进行功率因数补偿的方法，能够较好地解决这个问题。In research of the energysaving question, it frequently needs to measure the active power that only have several watts of low power factor loads . Owing to the fact that the sensitivity of power meter is lower, the precision of direct measurement is very low. Adopting current transformer inductor inversion - use to carry on the method of power factor compensation to the load, can preferably solve the question.

关 键 词：电流互感器 倒置使用 功率表 功率损耗 

分 类 号：TM310.6[电气工程—电机] TM933.4