Analysis of heat treatment defect of load-bearing metal parts of high voltage circuit breaker mechanism

Failure analysis was carried out on the circuit breaker gear damaged in operation. Various detection methods were applied including composition analysis, hardness testing, metallographic observation, fracture scanning analysis and so on. The failure reason was found out to be improper heat treatment...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2019-12, Vol.358 (5), p.52065
Main Authors: Feng, Chao, Xie, Yi, Wang, Jun, Long, Yi, Li, Dengke, Liu, Weike, Ouyang, Kejian
Format: Article
Language:English
Subjects:
Circuit breakers
Damage detection
Failure analysis
Hardness tests
Heat treatment
Heat treatments
High voltage
Online Access:Get full text
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Summary:Failure analysis was carried out on the circuit breaker gear damaged in operation. Various detection methods were applied including composition analysis, hardness testing, metallographic observation, fracture scanning analysis and so on. The failure reason was found out to be improper heat treatment process, and corresponding rectification opinions were also put forward.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/358/5/052065