The excitation of UHF signals by partial discharges in GIS

被引：276

作者：

Judd, MD

Farish, O

Hampton, BF

机构：

[1] Center for Electrical Power Engineering, University of Strathclyde, Glasgow

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 1996年 / 3卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1109/94.486773

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 fundamental theory of the UHF method for detecting partial discharge (PD) in gas insulated substations (GIS) is presented. The effects of position, size, current amplitude and pulse shape of the PD source on the UHF signal tan be predicted using this theory. Excitation of propagating electromagnetic waves by a PD current pulse within the coaxial waveguides formed by GIS components is explained by making use of dyadic Green's functions for the electric fields of propagating modes. Experiments with a coaxial test chamber are used to verify the theoretical predictions, and comparisons are made between measured and simulated UHF signals. Some implications for the UHF measurement of PD are discussed, together with positioning and sensitivity requirements for UHF couplers. A scheme is proposed for standardizing PD measurements made using the UHF technique.

引用

页码：213 / 228

页数：16

共 27 条

[11]

ILYENKO OS, 1995, P 9 ISH GRAZ, V4

[12] Modelling partial discharge excitation of UHF signals in waveguide structures using Green's functions [J].

Judd, MD ;

Hampton, BF ;

Farish, O .

IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY, 1996, 143 (01) :63-70

[13] BROAD-BAND COUPLERS FOR UHF DETECTION OF PARTIAL DISCHARGE IN GAS-INSULATED SUBSTATIONS [J].

JUDD, MD ;

FARISH, O ;

HAMPTON, BF .

IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY, 1995, 142 (03) :237-243

[14]

JUDD MD, 1995, P 9 ISH GRAZ, V4

[15]

PACK S, 1993, P 8 ISH YOK, V3, P93

[16] PARTIAL DISCHARGE DIAGNOSTICS FOR GAS-INSULATED SUBSTATIONS [J].

PEARSON, JS ;

FARISH, O ;

HAMPTON, BF ;

JUDD, MD ;

TEMPLETON, D ;

PRYOR, BM ;

WELCH, IM .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 1995, 2 (05) :893-905

[17] A CONTINUOUS UHF MONITOR FOR GAS-INSULATED SUBSTATIONS [J].

PEARSON, JS ;

HAMPTON, BF ;

SELLARS, AG .

IEEE TRANSACTIONS ON ELECTRICAL INSULATION, 1991, 26 (03) :469-478

[18]

PETIT A, 1995, P 9 ISH GRAZ, V5, P5596

[19]

SCHLEMPER HD, 1993, P 8 ISH YOK, V3, P157

[20]

SCHLEMPER HD, 1995, P 9 ISH GRAZ, V5

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