Advantage of On-Line Partial Discharge Continuous Monitoring of Medium Voltage Substation

被引：9

作者：

Blokhintsev, Igor ^{[1
]}

Patterson, Calvin L. ^{[2
]}

Cassidy, Brian J. ^{[3
]}

Loesch, Armin H. ^{[4
]}

机构：

[1] Eaton Corp, 5421 Feltl Rd Ste 190, Minnetonka, MN 55343 USA

[2] Eaton Corp, Saskatoon S7J 4V3, SK, Canada

[3] Bayer Mat Sci, Baytown, TX 77520 USA

[4] Eaton Corp, Houston, TX 77075 USA

来源：

2009 IEEE ELECTRICAL INSULATION CONFERENCE | 2009年

关键词：

D O I：

10.1109/EIC.2009.5166335

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：

On-Line Continuous Partial Discharge measurements of medium voltage substations have not attracted the same attention in the electrical community as compared to similar PD measurements of rotating machines. The cost of an unexpected outage however may be considerably more significant of a main distribution bus than just for a single motor failure. This paper discusses pros and cons of PD measurements using multiple sensors for additional noise reduction and localizing PD activity for measurements made in higher frequency bands. The importance of continuous PD monitoring vs. periodic walk in PD, measurements of switchgear is also discussed considering that PD activity in switchgear can have very unstable activity highly dependent on ambient conditions. Negative periodic PD tests in switchgear can result in a false sense of security. Case studies from field experience are presented to support the discussions.

引用

页码：153 / +

页数：2