电力系统元件可靠性数据的统计分析对电力工业有重要意义。
Statistical analysis of reliability data for power system units is valuable for electric industry.
开关电器是整个电力系统工作可靠性的关键元件。
The switch apparatus is a key element for total electric power system in reliability.
输电线是电力系统的重要元件之一。
Transmission line is one of the important components in power system.
三相负荷不平衡以及系统元件三相参数不对称都会引起电力系统三相不平衡。
The definition and national standard of three-phase unbalance in power system were expatiated.
同时，FACTS元件的加入，也对电力系统提出了新的要求和挑战。
Meanwhile, new demand and challenge come with the use of FACTS devices.
同时，FACTS元件的加入，也对电力系统提出了新的要求和挑战。
Meanwhile, new demand and challenge come with the use of FACTS devices.
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