摘要
潜供电弧的自灭时间决定着单相重合闸的重合时间和成功率,潜供电弧自灭特性的研究是保证单相重合成功的关键技术。特高压同塔双回输电线路潜供电弧试验室模拟试验是唯一行之有效的潜供电弧自灭特性研究方法,该文给出了试验室单相试验回路的由来,并证明了单相试验回路与特高压同塔双回六相回路的等价性;提出;"长弧"和"短弧"的概念,在模拟试验中采用;较短电弧代替较长电弧,并从理论分析及试验室试验2方面,给出了特高压同塔双回输电线路潜供电弧试验室模拟试验等价性的研究。
Auto-reclosing time and the success rate of the single-phase auto-reclosing operation are decided in the extinguishing time of the secondary arc. Extinction characteristic research of the secondary arc is the key technology to guarantee successful auto-reclosing operation. Simulation test in laboratory is the only effective method to research extinction characteristic of secondary arc in UHV with double circuit transmission lines. This paper provided the single-phase test loop in the laboratory and proved the equivalence of single-phase test loop with six-phase loop in the UHV transmission line. Otherwise, ＂long arc＂ and ＂short arc＂ were defined, and the relatively short arc were used instead of the longer arc in simulation test. The equivalence proof of the UHV transmission line secondary arc and the laboratory simulation test arc was given from theoretic analysis and laboratory test.
出处
《电网技术》
EI
CSCD
北大核心
2008年第22期4-7,共4页
Power System Technology
基金
国家电网公司重大科研攻关项目(B11-07-042)
关键词
交流特高压
单相自动重合闸
潜供电弧
自灭特性
电弧模拟试验
长弧
短弧
AC UHV
single-phase auto-reclosingoperating
secondary arc
extinction characteristic
arcsimulation test
long arc
short arc
