【摘要】 以80C196KB型单片机为控制中心，采用一种通过检测直流系统对地漏电流来探测直流系统接地电阻和判断直流接地故障支路的新方法，研制出新的直流接地探测系统，与传统的注入交流信号检测法相比，无须给直流系统注入任何信号，对直流系统无任何不良影响，检测结果不受分布电容的影响，无须交流信号发生装置，检测电路相对简单。更多还原

【Abstract】 ：In this paper， a new method of measuring the insulating resistance between ground and DC power supply is proposed．A practical measuring instrument is designed based on the new method proposed in this paper and a single chip computer 80C196KB．The advantages of this instrument include no injection of harmful signals to the DC system， elimination of influence of distributed capacitor on the measuring result， simplicity in measuring circuits， low price and so on．更多还原