ACOUSTIC MONITORING OF PARTIAL DISCHARGES IN GAS-INSULATED SUBSTATIONS USING OPTICAL SENSORS

被引：9

作者：

COSGRAVE, JA ^{[1
]}

VOURDAS, A ^{[1
]}

JONES, GR ^{[1
]}

SPENCER, JW ^{[1
]}

MURPHY, MM ^{[1
]}

WILSON, A ^{[1
]}

机构：

[1] NATL GRID CO,RES LABS,LEATHERHEAD KT22 7ST,ENGLAND

来源：

IEE PROCEEDINGS-A-SCIENCE MEASUREMENT AND TECHNOLOGY | 1993年 / 140卷 / 05期

关键词：

ACOUSTIC MONITORING; PARTIAL DISCHARGES; OPTICAL SENSORS;

D O I：

10.1049/ip-a-3.1993.0057

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：

A study has been made of the feasibility of applying optical fibre sensing technology to acoustic monitoring of partial discharges within gas insulated substations (GIS). A test rig has been constructed to simulate a section of GIS in which acoustic sources could be placed. This has been used to test the optical systems which showed greatest promise of having the capability of monitoring these partial discharges. Experimental results are presented which show that acousto-optical sensing, using fibredyne interferometry, of partial discharges within GIS is feasible in principle. However, further work is needed to extend the sensitivity range to acoustical amplitudes of about 10(-14) m which correspond to signals from the weakest discharges requiring detection.

引用

页码：369 / 374

页数：6