The resistivity of anti-halo material has non-linear property which can improves the field distribution of insulation structure at winding end of power transformer.

防晕材料的电阻率具有非线性特性，此特性能改善电力变压器绕组端部绝缘结构的电场分布。

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At this moment, the excitation voltage transformer impedance and the system-to-ground capacitance come into being non-linear resonant circuit.

此时电压互感器的励磁阻抗和系统的对地电容形成非线性谐振电路。

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