In the no-load test of transformer, because of the low power factor and non-sinusoid current waveform, the high precision measurement is difficult.
变压器的空载试验中，由于功率因数低，空载电流不是正弦信号，高精度测量其有功功率具有一定的难度。
As analyzing the property of optical transformer, a FBG current sensor model is projected for measuring big current safely and in high precision.
在分析光电式互感器性能的基础上，提出了针对系统大电流进行高精度安全测量的光纤光栅电流互感器模型。
As analyzing the property of optical transformer, a FBG current sensor model is projected for measuring big current safely and in high precision.
在分析光电式互感器性能的基础上，提出了针对系统大电流进行高精度安全测量的光纤光栅电流互感器模型。
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