摘要
零序电压是一个矢量,有大小及方向。在有中性点的系统中,用正序电压作参考坐标,进行零序电压测量,又用几何作图的方法,得出零序电压矢量图。在中性点没有引出的系统中,测出三相线电压,得正序电压坐标作参考,以三相电压作图,或者是计算得出零序电压矢量值,方法简单实用。
Zero-sequerence voltage is a vector with size and di rection.In the system with a neutral point,zero-se-quence voltage is measured by using positive-se quence voltage as a reference coordinate and zero-se quence voltage vector diagram is drawn by geometric method.In a system where a neutral point fails to be led,three-phase line volt-age is measured and positive-sequence voltage vector is got for reference.It is a simple and practicable way to obtain the value of zero-sequence voltage vector by drawing with three-phase voltage or by calculation.
出处
《华中电力》
2002年第4期11-13,17,共4页
Central China Electric Power
关键词
正序电压坐标
零序电压
测量
voltage
vector
positive sequence
zero sequence
