PT is the important component of producing ferroresonance, the parameter of PT has the important influence on the ferroresonance and its character.

电磁式电压互感器PT是产生铁磁谐振的重要元件之一，PT参数对于是否产生谐振以及谐振的性质有重要的影响。

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Ferroresonance due to the saturation of PT magnetizing characteristics is frequently reported to happen on the busbars of neutral grounded substations.

由于母线PT励磁特性的非线性，铁磁谐振频繁发生在中性点接地变电站的空母线上。

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Through the simulations of three phases under the conditions of PT symmetric and asymmetric, the effect of excitation characteristics of three phases' PT on ferroresonance is concluded.

通过三相pt对称和不对称两种情况下的计算，得到互感器三相励磁特性对铁磁谐振的影响。

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