A failure analysis of a generator unit shutdown due to short circuit of generator positive and negative collector rings

Taking the short circuit faults of the positive and negative collector rings of a 40MW gas turbine generator as an example, the failure process of the generator's positive and negative collector rings is analyzed, the process of failure occurrence is explained, and the cause of the failure is a...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 647; no. 1; pp. 12020 - 12025
Main Authors Liu, Shifu, Qian, Zhunli
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.01.2021
Subjects
Air intakes
Chambers
Failure analysis
Gas turbines
Short circuits
Shutdowns
Turbogenerators
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Summary:Taking the short circuit faults of the positive and negative collector rings of a 40MW gas turbine generator as an example, the failure process of the generator's positive and negative collector rings is analyzed, the process of failure occurrence is explained, and the cause of the failure is analysed, the main reason for the failure is that the air inlet filter of the collector ring chamber of the generator is damaged and falls off, and the broken and dropped filter screen enters the collector ring chamber with the wind, which causes a short circuit of the positive and negative collector ring. Finally, the corresponding treatment and preventive measures are formulated.
Bibliography:ObjectType-Conference Proceeding-1
SourceType-Scholarly Journals-1
content type line 14
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/647/1/012020