Predictive maintenance systems for substations

Author

Kawada, Takaaki ; Yamagiwa, Tokio ; Mori, Etsunori ; Yamada, Hiroshi ; Endo, Fumihiro

Author_Institution

Hitachi Ltd., Ibaraki, Japan

fYear

1991

fDate

8-12 Jul 1991

Firstpage

1144

Abstract

Power delivery apparatus in substations tends to operate under circumstances which do not allow long-term shutdown for overhaul inspection and maintenance. Therefore, it is necessary to monitor and diagnose the condition of substation equipment in operation so that signs of abnormalities or end-of-life can be detected. Hitachi Ltd. has been developing and improving sensing and diagnostic technologies including expert systems for diagnosing various abnormal conditions and predicting end-of-life with high accuracy. Based upon these technologies, high-precision on-line operation/maintenance systems for practical use incorporating various types of high-precision diagnostic devices and expert systems are being produced. These systems are being designed and manufactured for application in newly constructed substations

Keywords

expert systems; maintenance engineering; power engineering computing; substations; Hitachi; expert systems; high-precision diagnostic devices; on-line operation/maintenance systems; power delivery apparatus; predictive maintenance; substations; Condition monitoring; Diagnostic expert systems; Fault detection; Inspection; Magnetooptic recording; Partial discharges; Predictive maintenance; Preventive maintenance; Signal analysis; Substations;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on

Conference_Location

Tokyo

Print_ISBN

0-87942-568-7

Type

conf

DOI

10.1109/ICPADM.1991.172279

Filename

172279