Influence of Rotor Position in FRA Response for Detection of Insulation Failures in Salient-Pole Synchronous Machines

Frequency response analysis (FRA) is a very common test for the diagnosis of power transformers. This paper presents some relevant results on the application of FRA to the diagnosis of rotating machines. First, a reference rotor position for obtaining the reference FRA response of a rotating machine...

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Bibliographic Details
Published inIEEE transactions on energy conversion Vol. 26; no. 2; pp. 671 - 676
Main Authors Platero, C A, Blázquez, F, Frías, P, Ramírez, D
Format Journal Article
LanguageEnglish
Published New York IEEE 01.06.2011
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Circuit faults
Diagnosis
Direct power generation
Fault diagnosis
fault location
Faults
frequency response analysis
Grounds
Insulation
Resistance
Rotating machines
Rotors
Stator windings
Stators
Synchronous machines
Windings
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Summary:Frequency response analysis (FRA) is a very common test for the diagnosis of power transformers. This paper presents some relevant results on the application of FRA to the diagnosis of rotating machines. First, a reference rotor position for obtaining the reference FRA response of a rotating machine is proposed. Then, FRA with the proposed rotor position is used to identify faults in the stator of the machine. This paper studies turn-to-turn and ground faults in the stator for different fault resistance values. Several laboratory tests demonstrate the applicability and value of the use of FRA in the diagnosis of rotating machines.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.2011.2106214