新型高压油浸组合互感器的研制与运用

Research and Application of New Type HV Oil Packet Transformer

文章阐述了几种组合互感器的特点,介绍了组合互感器的误差特性。较详细地介绍了由1台倒立式电流互感器和1台具有开放式铁心的电磁式电压互感器组合而成的新型高压组合互感器(VAU型)的基本特征及主要性能,测量结果表明,VAU型组合互感器误差特性好,瓷套管上电场强度沿高度分布均匀,体积小,占空间少,制造成本低,而且还可防铁磁谐振,现在的最高设备电压已达550kV。

The characteristics of some kinds of packet transformers were elaborated, and the error property of packet transformer was introduced. The paper introduced comparatively in detail a basic feature and major performances of new type HV packet transformer （VAU）, which is combined from a stand-up and upside-down type current transformer and an electromagnetic type volta~ transformer with open core. The measurement result shows that VAU type packet transformer has good error property, even distributed strength of electric field on porcelain bushing along with the highness, and with little volume, less space, low manufacturing costs, and anti-ironmagnetic resonance etc.. The highest equipment voltage has reached 550 kV now.