现有TA开路保护装置的缺陷及改进方向  

Limitation and Improvement Direction of Existing TA Open Circuit Protection Setting

作　　者：靳建峰[1] 翁利民[2] 杨文学[1] 沈黎明 扈艳玲[1] 

机构地区：[1]郑州电力高等专科学校,郑州450004 [2]武汉大学电气工程学院,武汉430072 [3]新乡供电公司,新乡453002

出　　处：《高电压技术》2006年第3期108-110,共3页High Voltage Engineering

摘　　要：叙述了TA二次回路开路时TA二次电压对电力系统运行的影响,结合电力系统现场运行、设计的特点和资料,分析了现有4种TA开路保护装置的基本原理、具体电路和固有缺陷,提出了相应具体的改进方向,并简要介绍了新型TA开路保护器的设计思路,希望性能完善的TA开路保护装置能在电力生产中发挥其积极作用。The article introduces firstly the characteristics of TA second-coil voltage in many cases, describes the voltage features when TA second-coil open-circuit happens; Secondly analyzes some inherent disadvantages of existing TA open-circuit protection circuit by comparing actual running and design parameter and combining the specialty of power system. This paper brings forward the direction and measure of the protection circuit as a whole, to improve the technique and function of TA open-circult protection, design a new TA open-circuit n device, and the practical effect is obvious, The article draws some useful conclusion and hopes that TA open-circuit protection with perfect performance plays a active role in power system.

关 键 词：TA 二次回路 开路过电压 开路保护装置 

分 类 号：TM774[电气工程—电力系统及自动化]