Effects of Vapor with Different Chemical Properties on Corona Partial Discharges of Stator Windings

被引：11
作者：
Li, Chuanyang [1 ]
Song, Jiancheng [1 ]
Lin, Lingyan [1 ]
Lei, Zhipeng [1 ]
Su, Wen [1 ]
Bi, Xiaoyu [1 ]
机构：
[1] Taiyuan Univ Technol, Shanxi Key Lab Coal Min Equipment & Safety Contro, Taiyuan 030024, Peoples R China
来源：
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2014年 / 21卷 / 03期
关键词：
Corona; humidity; online monitoring; partial discharges; stator windings; HUMIDITY; TEMPERATURE; EMISSION; AIR;
D O I：
10.1109/TDEI.2014.6832238
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The effects of vapor with different chemical properties on corona partial discharges (PDs) at the junction section of the semi-conductive tape and the stress grading tape of stator windings were investigated. The phase resolved partial discharge (PRPD) patterns were collected during the experiment to obtain the characteristics of the PDs. The result has confirmed that relative humidity (RH) of the vapor with different chemical properties can cause corona discharge to change significantly. The acidic vapor can suppress corona discharge effectively. When RH exceeds 60%, the corona discharge would be hardly induced even though the voltage is boosted up to twice the operating voltage. When RH is over 80%, corona discharge will develop into phenomenon of creeping on the surface of the ground wall insulation and can hardly be collected through the capacitive coupler.
引用
收藏
页码：964 / 972
页数：9
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