DocumentCode
854089
Title
Zero sequence currents in AC lines caused by transients in adjacent DC line
Author
Chopra, N. ; Gole, A.M. ; Chand, J. ; Haywood, R.W.
Author_Institution
Dept. of Electr. Eng., Manitoba Univ., Winnipeg, Man., Canada
Volume
3
Issue
4
fYear
1988
fDate
10/1/1988 12:00:00 AM
Firstpage
1873
Lastpage
1879
Abstract
The cause of large zero-sequence transients in AC lines caused by transients in a neighbouring earth-return DC circuit is discussed. Both a qualitative reasoning and a quantitative parametric study are provided. The results show that very large transients can occur even for lines relatively far apart. The transients show up only when nonzero earth resistivity is included in the model. The effect of different ground resistivities, earthing resistances, and the presence or absence of ground wires is also discussed
Keywords
DC power transmission; power transmission lines; transients; AC lines; DC line; earth-return DC circuit; earthing resistances; ground resistivities; transients; zero-sequence transients; Circuits; Conductivity; Earth; Frequency; Grounding; Impedance; Power transmission lines; Relays; Steady-state; Wire;
fLanguage
English
Journal_Title
Power Delivery, IEEE Transactions on
Publisher
ieee
ISSN
0885-8977
Type
jour
DOI
10.1109/61.193995
Filename
193995
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