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互感器的分类 Classification of transformer (1)根据互感器的工作原理可分为:电磁式、电容式、光电式三种互感器。 (1) according to the working principle of the transformer, there are three kinds of transformers: electromagnetic, capacitor and photoelectric. 电磁式互感器是利用电磁感应原理制成的互感器;电容式互感器是利用电容分压原理制成的电压互感器,多用于110kV及以上的高压电力系统;光电式互感器是为了测量超高压线路的电测量值而研制的,有的是根据铅玻璃的法拉第效应制成的激光电流互感器,也有根据波开尔效应制成的激光电压互感器。 Electromagnetic type transformer is a transformer that is made of electromagnetic induction. Capacitive transformer is a voltage transformer that is made from the principle of capacitor partial pressure, and is used for high voltage power system of 110kV and above. Photoelectric current transformer is developed for measuring electric measurement value of the ultrahigh pressure line, have a plenty of according to the lead glass laser current transformer is made of Faraday effect, also have open, according to the wave effect of the laser voltage transformer. (2)按照互感器的功能可分为:电流互感器(原简称为CT,现统称为TA〈GB7159〉)和电压互感器(原简称为PT,现统称为TV〈GB7159〉)。 (2) according to the function of the transformer can be divided into: current transformer (referred to as CT, now collectively known as TA < GB7159 >) and voltage transformer (referred to as PT, is now referred to as TV < GB7159 >). TA能将系统中的大电流变换为规定的标准二次电流;TV能将高电压变换为规定的标准低电压,供二次测量用。 They can transform the large current in the system into a standard secondary current; The TV can change the high voltage to the standard low voltage, for the second measurement.