PD Characteristics of Non-uniform Electric Field in SF6 Gas Under Oscillating Switching Impulse Waveform

被引：0

作者：

Xiong J. ^{[1
]}

Zhang L. ^{[2
]}

Li J. ^{[2
]}

Wang S. ^{[1
]}

Lu G. ^{[1
]}

Wu G. ^{[1
]}

机构：

[1] Guangzhou Power Supply Burea Co., Ltd. of China Southern Power Grid, Guangzhou

[2] State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an

来源：

Xiong, Jun | 1600年 / Science Press卷 / 43期

基金：

中国国家自然科学基金;

关键词：

GIS; Impulse voltage withstand test; Non-uniform electric field; Oscillating switching impulse; PD detection;

D O I：

10.13336/j.1003-6520.hve.20170831024

中图分类号：

学科分类号：

摘要：

That PD detection is carried out under the impulse voltage withstand test can more accurately judge the conditions of equipment insulation. Consequently, we studied the PD characteristics of defect with non-uniform electric field in SF6 gas under switching impulse waveform. The oscillating impulse waveform generating system was established and the switching impulse waveform conforming to the IEC 60060-3 standard was generated. The PD detection system based on UHF and pulse current methods was established. The needle-plane model was used to simulate the non-uniform electric field in SF6 gas. Moreover, the time delay, amplitude, number and phase of PD detection results were analyzed. The results show that PD occurs in the vicinity of peak of oscillating waveform and it will appear in multiple oscillating circles. The first oscillating circle has the stronger ability to produce PD and the first PD voltage is lower in first oscillating circle. The PD phase distribution width, PD amplitude, and number all increase with increase of the applied voltage. © 2017, High Voltage Engineering Editorial Department of CEPRI. All right reserved.

引用

页码：2951 / 2957

页数：6

共 27 条

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