The speed, sensitivity and reliability of transformer protection improve with the higher requirement of the power system security.
随着电网对安全性要求的提高，对电力变压器保护的速动性、灵敏性、可靠性要求也越来越高。
Ensuring power system security by networking transmission of electric power information.
电力信息的网络化传输是电力系统安全的重要保证。
In the power system, the status of electrical equipment directly related to the power system security.
在电力系统中，电气设备的状态直接关系到电力系统的安全。
Hence it is a very important question to consider power system security with its economy synthetically.
因此如何将系统的安全性与经济性很好的综合考虑起来就是一个非常重要的问题。
The realization of power system security and stability control is mainly developing new-style stability control equipment.
电力系统的安全稳定控制的实现主要是开发新型的稳定控制装置。
Using the software EUROSTAG, overspeed protection control model was set up and the effect of OPC on power system security and stability was researched.
应用仿真软件EUROSTAG的模块自定义功能建立了带有超速保护的调速系统模型，通过仿真研究了超速保护控制对电力系统安全稳定的影响。
When cross-region power network in our country is accomplished, cascading failures will possibly become a new question that endangers power system security.
随着我国跨区互联电网的建成，连锁故障可能成为危及我国电网安全的新问题。
Large power transformer is one of the most important and expensive equipment in the power system, its operation statements has a direct impact on the power system security.
大型电力变压器是电力系统最重要和最昂贵的设备之一，其运行状态直接影响系统的安全性。
Low frequency oscillation is harmful to power system security and stability, and as one of solutions power system stabilizer (PSS) can effectively restrain such a phenomena.
低频振荡是一种不利于电力系统安全和稳定运行的现象，而电力系统稳定器(PSS)可以有效抑制低频振荡。
As an essential part in the power system security analysis, the whole process of contingency selection becomes more sensible by taking the probability aspect into consideration.
作为电力系统安全分析中的重要组成部分，偶然事故的选择由于在分析过程中加入了对事故发生率的考虑而变得更具有合理性。
Generation Shift Distribution Factors (GSDF) and Generalized Generation Distribution Factors (GGDF) are important sensitivity methods in power system security and contingency analysis.
发电转移分布因子(GSDF)和广义发电分布因子(GGDF)都是常用的灵敏度分析及安全评估工具。
It is researched whether if the security and stability performance of ultra high-voltage (UHV) grid could meet the requirements of power system security and stability criteria of China.
重点研究特高压同步电网是否能满足我国电力系统安全稳定性的标准要求。
Power system security and stability analysis is necessary to the security and stability operation of power systems.
电力系统安全稳定分析是保障电网安全稳定运行的重要环节。
Power system security and stability analysis is necessary to the security and stability operation of power systems.
电力系统安全稳定分析是保障电网安全稳定运行的重要环节。
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