【作者】 朱海云； 杨旭； 朱斌； 刘惠芳；

【Author】 ZhuHaiYun Yang Xu Zhu Bin Liu Hui Fang Telecom Science and Technology Institute of Guangdong Guangzhou 510630 South China University of Technology Guangzhou 510641

【机构】 广东省电信科学技术研究院； 华南理工大学电子信息学院；

【摘要】 目前国内使用单片机(8051、8096系列)和继电器等组成的(用于电力系统中)小电流接地选线装置,存在着检测线路故障的准确性差、速度慢、误判率高等问题。为此,本文提出采用DSP(数字信号处理器)组成一种新型的小电流接地选线装置。实践证明,它的工作速度比原装置提高10倍以上,测量精度提高60％,是先进可行的。更多还原

【Abstract】 Now in our country, Single chip computer (805 K 8096 series) and relay mainly compose Neutral low current grounded system’s line-selection protection device used in Power System. There are some problems such as low veracity, low speed and high rate of failure of justice in checking the line’s problems in this device. Therefore, We develop a new device of neutral low current grounded system based on DSP technology. It has proved to be advanced and practical. The sampling rate is improved at least ten times and the measure of precision is improved sixty percents.更多还原