An on-line insulation monitoring system of HV apparatus using a micro-computer system

Author

Shi, Baozhuang ; Yang, Li

Author_Institution

Guangdong Electr. Power Test & Res. Inst., China

fYear

2000

fDate

2000

Firstpage

85

Lastpage

88

Abstract

A measurement system, based on an embedded 386EX processor, for on-line insulation monitoring of power transformers, instrument transformers, transformer bushings, coupling capacitors and MOA is developed in this paper. Its working principles are presented and test results are discussed. The system has been installed at a 110 kV substation. Onsite operating results show that this system owns the property of high stability and strong interference tolerance. This online system can be used for monitoring the insulation condition and indicating the evolution of any developing problems in real time while HV apparatuses are energized at rated voltage

Keywords

arresters; automatic test equipment; bushings; instrument transformers; insulation testing; insulator testing; power capacitors; power transformer insulation; 110 kV; HV apparatus; MOA; coupling capacitors; embedded 386EX processor; high stability; instrument transformers; insulation condition; interference tolerance; measurement system; micro-computer system; on-line insulation monitoring; on-line insulation monitoring system; power transformers; substation; test results; transformer bushings; Capacitors; Instrument transformers; Insulators; Monitoring; Power measurement; Power transformer insulation; Power transformers; Stability; Substations; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 2000. Conference Record of the 2000 IEEE International Symposium on

Conference_Location

Anaheim, CA

ISSN

1089-084X

Print_ISBN

0-7803-5931-3

Type

conf

DOI

10.1109/ELINSL.2000.845445

Filename

845445