Acoustic diagnosis of high voltage circuit-breakers

A noninvasive technique for assessing the condition of circuit breakers by considering the acoustic signals generated during nonenergized switching is described. Mechanical malfunction, wear, and other types of abnormal behavior can be detected as changes in this acoustic signature. Digital signal p...

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Bibliographic Details
Published inIEEE transactions on power delivery Vol. 7; no. 3; pp. 1306 - 1315
Main Authors Runde, M., Aurud, T., Lundgaard, L.E., Ottesen, G.E., Faugstad, K.
Format Journal Article
LanguageEnglish
Published New York, NY IEEE 01.07.1992
Institute of Electrical and Electronics Engineers
Subjects
Acoustic signal detection
Applied sciences
Circuit breakers
Circuit faults
Connection and protection apparatus
Data mining
Digital signal processing
Electrical engineering. Electrical power engineering
Exact sciences and technology
Noninvasive treatment
Signal generators
Speech recognition
Switching circuits
Voltage
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Summary:A noninvasive technique for assessing the condition of circuit breakers by considering the acoustic signals generated during nonenergized switching is described. Mechanical malfunction, wear, and other types of abnormal behavior can be detected as changes in this acoustic signature. Digital signal processing techniques known from speech recognition were successfully applied to extract, compare, and present the information from the breaker signatures. A fault in the release mechanism which developed over time and eventually rendered one pole of a circuit-breaker inoperative was detected in an early stage, demonstrating the efficiency of this diagnostic technique.< >
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0885-8977
1937-4208
DOI:10.1109/61.141847