陕西干式变压器：电流互感器的选择

电流互感器的选择 　　
电流互感器的选择由以下三方面决定：额定电压；一次额定电流或电流比；准确级和对应的额定二次负载(欧姆)。配电盘仪表用的电流互感器的准确级次为0.5—1级；对电能表，则应用0.5级。
低压电流互感器只有一组铁心和一组绕组，其精确级往往也只有一个级别.电流互感器的准确级在一定的二次负载(欧姆)范围内有相应的准确级。高压电流互感器有两组铁心和两组绕组，其中一组准确级次较高的供测量仪表用，一组准确级次较低的供继电保护用。

The choice of the current transformer

The choice of the current transformer is determined by the following three aspects: the rated voltage; a rated current or the current ratio; accurate level and corresponding to the rated secondary load (ohms). The distribution panel手 机：13287501888 meter current transformer accuracy class 0.5 level; of meter, then the application of 0.5.
Only a group of low-voltage current transformer core and a set of windings, accurate level often only one level of accuracy class of the current transformer secondary load (in ohms) within appropriate a电 话：0635-8888299ccuracy class. High-voltage current transformer has two sets of core and two windings, which with an accuracy class higher for the measuring instruments, with an accurate level lower for protection.

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