According to the characteristics of different algorithms, an implementation scheme of distance protection with inverse time characteristic is brought forward. 并根据各算法的估计性能特点,提出了一种具有反时限特性的距离保护算法的实现方案。
The distance protection with inverse time characteristic is the best choice to solve the conflict between fast trip near the protecting relay and reliable trip at the end of protection zone. 反时限距离保护是解决近范围快速动作与保护范围末端可靠动作之间矛盾的最好策略。
The inverse time delay characteristic is adopted by the basic zero-sequence over-voltage protection. 其基本保护采用零序过电压保护,动作时间采用反时限特性;
The inverse time characteristic of overload protection and the differences of starting protection and running protection are described in detail. 重点介绍了热过载保护的反时限特性和启动保护与运行保护的区别。
The general inverse time characteristic is introduced, and the setting principles of current and time when inverse time characteristic is scarce or voltage transformer breaks are provided. 介绍了普通反时限特性,并提供了缺乏反时限特性段或电压互感器断线时的电流、时间整定原则。
The algorithms of microprocessor distance protection emulated and calculated in this paper are used to realize the inverse time characteristic of microprocessor distance protection. 本课题仿真计算的保护算法用于实现高压线路微机距离保护的反时限。
Then many distance protection thoughts and algorithms are adopted to compare each inverse time characteristic, better arithmetic and set thoughts are got. 采用各种距离保护思想、算法,采用C语言进行计算,比较各自的时限特性,得出反时限特性比较好的算法及其整定思路;
Different from the common inverse time characteristic, this model conforms to the load actual operating law and the protection request, and takes the analysis of measurement error into consideration. 与常用反时限保护特性相比较,此保护模型更符合负载的实际运行规律及保护要求,并对测量误差关系进行了分析。