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- W2382253102 abstract "This paper summarizes the characteristics of 1 000 kV double-circuit lines, and the relationship between secondary arc and single-phase reclosing time. And by using EMTP, it calculates and analyzes effect of various factors on secondary arc current during single-phase reclosure of the above lines. The factors include length of line, operation mode, scale of power flow, and value of small reactance on neutral point of shunt reactor. Based on results from calculation and analysis, the following can be concluded: for lines with shunt reactor compensation, when the reclosing time adopted is about 1 s, value of secondary arc current during single-phase reclosure should be less than 35 A; for UHV double-circuit lines, coupling effects of conductors under double-circuit and single-circuit operation modes are different, which makes it difficult to select a suitable value for small reactance on neutral point of shunt reactor; for lines with long length, when they are transmitting heavy power flow, it may be hard for secondary arc to self-extinguish. At present, method of line transposition with reverse-phase sequence commonly adopted cannot completely eliminate coupling between loops. Therefore the method cannot solve the problems related with secondary arc from the root." @default.
- W2382253102 created "2016-06-24" @default.
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- W2382253102 date "2009-01-01" @default.
- W2382253102 modified "2023-09-23" @default.
- W2382253102 title "Research on Secondary Arc Current of 1 000 kV Double-Circuit Transmission Lines on the Same Tower" @default.
- W2382253102 hasPublicationYear "2009" @default.
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