As the normal current transformer secondary currents may be as high as hundreds of amperes, shunts of resistance of a few milliohms are needed to produce the desired voltage for the Analog to Digital Converter (ADC).

• 由于电流互感器二次侧电流可高达数百安培,要产生提供给模-数转换器(adc)的需要的电压就需要数MQ的并联电阻。