EMTP-analysis of SVL Damage on Underground Transmission Cable

カテゴリ: 部門大会

論文No: 421

グループ名: 【B】平成17年電気学会電力・エネルギー部門大会講演論文集

発行日: 2005/08/10

タイトル(英語): EMTP-analysis of SVL Damage on Underground Transmission Cable

著者名: Che Wung Ha (LS Cable Ltd.),Jung Nyun Kim (LS Cable Ltd.),In Ho Lee (LS Cable Ltd.)

著者名(英語): Chewung Ha(LS Cable Ltd.),JungNyun Kim(LS Cable Ltd. ),InHo Lee(LS Cable Ltd.)

キーワード: SVL|EMTP

要約(日本語): Sheath sectionalizing insulators in cross-bonded cable systems and the insulators in a single-point bonded-cable system may flashover due to overvoltages generated by lightning, switching surges, or faults on the power system. It is necessary to provide some form of protection for these insulators under system transient conditions. At present, SVL(Sheath Voltage Limiter)s are used for this purpose.
In the actual power system, a few SVLs were damaged in combined transmission line which is connected with overhead line and underground cable last year. So we investigated the failure reason and proposed the improved system.
The modeling for simulation is established using the actual system in EMTP(Electric Transient Program). The simulation result demonstrated the best way to prevent form SVL’ damage in the given transmission line through the detailed analysis and its assessment.

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