摘要
介绍了以 80 C1 96KB型单片机为控制中心 ,采用一种检测直流接地故障的新原理所研制出的新型直流系统对地电阻检测、直流接地故障支路选线、故障点探测系统。介绍了检测仪器的硬件组成、软件设计和主要性能指标。与原有的直流接地故障测试系统相比 ,该装置无需给直流系统注入任何信号 ,对直流系统无任何不良影响 ;完全克服了传统的注入交流信号法的不足 ,检测结果不受分布电容的影响 ,对所有直流系统都具有很高的检测灵敏度 ;接地电阻数值检测精度高 ,能准确判断故障所在支路 ;故障定点准确 ;无需交流信号发生装置 ,检测量为简单的直流信号 ,因而整个系统电路简单 ,运行可靠性高 ,产品成本低。
Based on a single chip computer (80C196KB) and a new principle, an apparatus is developed for measuring insulating resistance between ground and DC power supply and for detecting fault location. The hardware, software and specification of the apparatus are described. Its advantages include high accuracy of measuring insulating resistance value, high precision in detecting the location of fault grounding point, elimination of influence of distributed capacitor on the measuring result, simplicity in measuring circuits, low price and so on.
出处
《电力系统自动化》
EI
CSCD
北大核心
2001年第15期51-53,共3页
Automation of Electric Power Systems
关键词
直流接地故障检测仪
单片机
电力系统
直流操作电源
Capacitors
Computer hardware
Computer software
Electric grounding
Electric insulation
Electric measuring instruments
Electric resistance
Power supply circuits
