The unbalanced degrees of current in primary winding under different load conditions are discussed, which are based on the general expressions of negativephasesequencecurrent.
结合负序电流的通用表达式，讨论了在不同负荷条件下的原边电流不平衡度。
2
Zero-sequencecurrent criterion, negativesequencecurrent criterion and phase current variation can be used to improve the performance of breaker failure protection for ACF sub-bank.
Experimental results prove the proposed control method can compensate the harmonic, negativesequence and zero sequence current components in the three phase four wire.