以Z型接线接地变压器的原理为基础,对电网中普遍应用的接地变压器的零序阻抗的计算进行阐述,也提及了三相电力系统单相接地时零序电流的计算.%Basing the principle of Zigzag-connected Grounding transformer and described the calculation of its zero sequence impedance,also referred to the zero-sequence current of the calculated value of three-phase power system while Single-phase grounding.
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