On this basis, the influences to unbalance current of line tower type, wire parameters and phase sequence arrange are analyzed.
在此基础上分析线路塔型、导线参数、相序排列等因素对不平衡电流的影响。
The relation formula is given by calculating the phase current and central wire current, thus the motivation of central wire choice is offered.
通过对相电流及中线电流的计算，给出了二者的关系式，为确定选择中线提供了理论依据。
Experimental results prove the proposed control method can compensate the harmonic, negative sequence and zero sequence current components in the three phase four wire.
实验结果表明，该装置可对三相四线制系统中的谐波、负序、零序等电流分量进行补偿。
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