通过分析接线图、相量图、功率及更正系数，介绍三相四线有功电能表常见的错误接线方式，提出检查三相四线有功电能表错误接线的简单方法，并介绍退补电量的计算方法。%By analyzing the wiring diagram,the vector diagram,the power and the adjusted coefficient,this paper in-troduces the common wrong wiring modes of the 3-phase and 4-wire watt-hour meter,presents simple checking methods,and describes the method of calculation for electricity return and compensation.
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