HSGS Investigation for Limiting the Secondary Arc on UHV Parallel Lines

DOI

10.2991/iccasm.2012.203How to use a DOI?

Keywords

UHV, High-Speed Grounding Switch (HSGS) parallel lines, single-phase reclosing, arc current, recovery voltage

Abstract

The HSGS characteristic for secondary arc limitation on UHV parallel lines is investigated versus singlephase to ground faults and cross-country faults, respectively by theoretical analysis and RTDS verification. The influential factors such as electrostatic induction, electromagnetic coupling, line length, HSGS single end closing and the secondary arc resistance are involved. The results show that secondary arc current and recovery voltage of cross-country faults are higher than that of single-phase to ground faults. The secondary arc current and recovery voltage increase with the increasing line length and load level. HSGS single end closing doesn’t help extinguishing the arc, while the high secondary arc resistance does. The conclusion shows that HSGS with low resistance and double-end quick closing in middle and short lines could extinguish secondary arc effectively, therefore the single-phase reclosing succeeds. Advice would be provided for the construction of UHV transmission lines in China.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xu Zhang
AU  - Xiaoqing Yan
AU  - Zhenyu Xu
PY  - 2012/08
DA  - 2012/08
TI  - HSGS Investigation for Limiting the Secondary Arc on UHV Parallel Lines
BT  - Proceedings of the 2012 International Conference on Computer Application and System Modeling (ICCASM 2012)
PB  - Atlantis Press
SP  - 802
EP  - 805
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccasm.2012.203
DO  - 10.2991/iccasm.2012.203
ID  - Zhang2012/08
ER  -