二次计量误差是造成工厂用电计量平衡困难的原因之一。
The secondary measurement error is one of the causes which make difficult for the balance of plant power consumption measurement.
而PT二次压降又是引起电能计量装置综合误差的直接原因之一。
PT secondary voltage step-down is one of the reason which causes the comprehensive error of the electric energy metering equipment.
电能计量综合误差是由电压互感器的合成误差、电流互感器的合成误差、电能表的误差、电压互感器二次导线压降所引起的计量组成。
There exits a compound error problem in the electrical measurement, which is composed of PT synthetic error, ct synthetic error, electrical energy measurement error and secondary potential of PT.
基于对称分量法，对电能表中性点虚接后的电压互感器二次压降进行了分析，得出了正确接线前后的计量误差变化量。
The on-site test results indicate that energy meter's neutral point virtual connection has a great effect on PT secondary voltage drop.
基于对称分量法，对电能表中性点虚接后的电压互感器二次压降进行了分析，得出了正确接线前后的计量误差变化量。
The on-site test results indicate that energy meter's neutral point virtual connection has a great effect on PT secondary voltage drop.
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