Research on Insulation Defect Detection Effectiveness of On-site Impulse Voltage Test for GIS Equipment

カテゴリ: 全国大会

論文No: 7-078

グループ名: 【全国大会】平成29年電気学会全国大会論文集

発行日: 2017/03/05

タイトル(英語): Research on Insulation Defect Detection Effectiveness of On-site Impulse Voltage Test for GIS Equipment

著者名: Tao Wen(Tokushima University),Naoyuki Shimomura(Tokushima University),Kenji Teranishi(Tokushima University),Qiaogen Zhang(Xi’an Jiaotong University)

著者名(英語): Tao Wen(Tokushima University),Naoyuki Shimomura(Tokushima University),Kenji Teranishi(Tokushima University),Qiaogen Zhang(Xi'an Jiaotong University)

キーワード: ガス絶縁金属閉鎖式開閉装置|インパルス耐電圧試験|絶縁欠陥

要約(日本語): The breakdown characteristics of SF6 in a highly inhomogeneous electric field under double-exponential impulses with different wavefront times were investigated to evaluate the effectiveness of the non-standard LI test in detecting defects in GIS. Results show that as Tf increases, the 50% breakdown voltages decrease to a minimum value and then increase. When Tf exceeds 2.0 μs, the 50% breakdown voltage is higher than that of standard LI obviously. The standard or impulse LI test with Tf ? 1.56 μs is to be preferred for installation detection, for it offers a greater probability of detecting insulation defects.

原稿種別: 英語

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