【摘要】 介绍了用谐波分析法监测MOA阻性电流的原理和实现这一方法对硬件电路的要求,实测和理论分析表明,该方法较之常规补偿法对阻性电流高次谐波分量反映更准确、灵敏.最后,介绍了该方法在现场的在线监测结果.更多还原

【Abstract】 This paper describes the principles of detecting the resistive current of metal oxide surge arrester (MOA) by the harmonic analysis method. The requirements lor its hardware circuits are also introduced. The analyses and the detected results show that this method is more accurate and sensitive than the routine compensation method for measuring the higher order harmonic components of the resistive currents.更多还原