A study of zero-sequence current induced in a cable system

Author

Nakanishi, H. ; Inoguchi, H. ; Hashimoto, I. ; Ito, Y. ; Takehana, H. ; Nagaoka, N. ; Ametani, A.

Author_Institution

Kansai Electric Power Co., Osaka, Japan

Volume

6

Issue

4

fYear

1991

fDate

10/1/1991 12:00:00 AM

Firstpage

1352

Lastpage

1358

Abstract

Large zero-sequence currents found in an actual crossbonded cable system led to a study of their causes and a solution to the problem. Measured values were compared to calculated results by the BPA-EMTP circuit analysis program. It was found that the zero-sequence currents were circulating between different circuits in the cable system and that they were being generated by the induction between phases in the same cable route. It was determined that the zero-sequence currents could be greatly reduced in a twin circuit (six phases) by symmetrical configuration of the cables. However, in a four-circuit system, no significant reduction could be achieved even by the symmetrical configuration

Keywords

distribution networks; power cables; power engineering computing; BPA-EMTP circuit analysis program; cable system; crossbonded cable system; four-circuit system; induction; symmetrical cable configuration; twin circuit; zero-sequence current; Circuits; Conductors; Current measurement; EMTP; Power cables; Power measurement; Power transmission lines; Substations; Transformers; Underground power cables;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.97663

Filename

97663