摘要
通过对江苏徐州供电公司部分变电站所使用直流系统及其使用的电桥型绝缘监测装置的分析研究和实际应用调查,指出了这些装置存在的缺陷,进而提出运用计算机技术和信号检测技术在直流系统中加低频交流小信号,并跟踪其变化的微机选线式直流系统绝缘监测装置或采用变频探测新技术原理的装置,从而克服现有装置的缺陷。
Based on the analysis and application investigation of direct current system insulation supervisory device of power plant and substation of Xuzhou power supply company, some defects have been found which cannot be solved by themselves. In order to remove the fatal defects, a direct current system insulation supervisory device with microcomputer line detection is proposed, which injects small AC signal with low frequency into direct current system and tracks its change by computer technique and signal-detection technique.
出处
《江苏电机工程》
2005年第4期35-37,共3页
Jiangsu Electrical Engineering
关键词
直流系统
接地故障
绝缘监测装置
定位
故障检测仪
direct current system
ground fault
insulation supervisory device
location
fault detector
