Title :
Predictive maintenance systems for substations
Author :
Kawada, Takaaki ; Yamagiwa, Tokio ; Mori, Etsunori ; Yamada, Hiroshi ; Endo, Fumihiro
Author_Institution :
Hitachi Ltd., Ibaraki, Japan
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;
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
DOI :
10.1109/ICPADM.1991.172279
