1) directional protective relaying based on fault component compensating voltage
突变量方向元件
2) directional protective relay based on fault component of compensation voltage
补偿电压突变量方向元件
1.
In the principles of protection, directional protective relay based on fault component of compensation voltage and double principles ground distance relay are applied.
在保护原理方面采用了补偿电压突变量方向元件和双原理综合接地距离继电器等新方案 ,并在软件流程方面采取了模块化设计 ,从而大大提高了保护性能。
3) energy directional relay
能量方向元件
1.
Traditional energy directional relay fails to discriminate fault direction in protection of the UHV long distance transmission line;and for the system resistance is too small,active energy directional relay will not work when there is fault on the outlet of transmission line.
传统能量方向元件在特高压线路中不能正确判别故障方向,同时当线路出口发生故障时由于系统内阻很小而导致有功能量方向元件也不能做出正确的判断。
4) delta variable
工频突变量方向保护
5) direction component
方向元件
1.
s:Based on the analysis of running mode,action after fault,dynamic power frequency impedance of TCSC(Thyristor-Controlled Series Capacitor) and compared with FSC(Fixed Series Compensation),the influence of TCSC on distance protection,direction component and pilot protection are analyzed.
在分析可控串联电容补偿器TCSC(Thyristor-ControlledSeriesCapacitor)的运行模式、故障后的动作行为和动态基频阻抗特点的基础上,对比常规串联电容补偿器FSC(FixedSeriesCompensa鄄tion),分析了TCSC对距离保护、方向元件及纵联保护的影响,认为:与FSC的线路相比,在TCSC线路上保护的性能不会降低,在FSC线路上运行的保护,可以在TCSC线路上很好地运行。
6) directional unit
方向元件
1.
A novel ultra-high-speed transient directional unit is proposed, which identifies fault direction by means of comparing the time-domain energy of the forward traveling-wave with that of the backward one in the very short period of time after fault occurs.
方向元件是基于行波或暂态量的超高速方向保护的核心元件。
补充资料：工频突变量方向比较式纵联保护
工频突变量方向比较式纵联保护
direction comparison pilot protection system using sudden change of power frequency component
gongPIntub一an}一ong fongx一angb一]loosh一Zongl一an boohu工颇突变t方向比较式纵联保护(d ireetioneomParison pilot protection system using suddeneharge of power fr阅ueney eomponent)见方向比校式纵联保护。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条