摘要
阐述了电能计量表的二次接线正确与否对电度表计量准确率的影响 ,着重讲逆电压相序接线对电能计量的影响 .分析表明 ,正相序接线 ,而且电流按照与电压相位相对应接入 ,则不影响电能计量表的计量准确率 .逆电压相序接线 ,而且电流不按照与电压相位相对应接入 ,则电能计量表会随负载是感性还是容性而产生快转和慢转现象 .
The influence of the second connection of the electric meter on its accuracy is expounded when the connection is right or not. The influence of adverse voltage phase sequence on the measure of electricity is explained. By analysis,it is clarified that the accuracy of the electric meter isn't affected when the connection is on positve phase sequence and the connection of electric current corresponds with voltage phase sequence. The electric meter may produce the phenomenon of fast rotation or slow rotation according as the load is perceptual or tolerant. The imaginary power meter may produce adverse rotation when the imaginary power meter may produce adverse rotation when the system has no reactive compensation.
出处
《黄金学报》
2001年第1期76-78,共3页
Gold Journal
关键词
正相序
逆相序
电角度
相量图
有功功率
无功功率
电能计量
positive phase sequence, adverse phase sequence, electrical angle, phasor diagram, active power imaginary power.
