Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers

Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers

Frequency response analysis is widely used as a method for the offline diagnosis of winding deformations in power transformers. To apply it to a working transformer, people need to determine how to inject the excitation signal and measure the response signal for windings that bear a rated voltage an...

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Bibliographic Details
Main Authors: Yangchun Cheng, Jiangang Bi, Wenzhi Chang, Yuan Xu, Xiaohua Pan, Xianwei Ma, Shuai Chang
Format: Article
Language:English
Published: Wiley 2019-12-01
Series:High Voltage
Subjects:
bushings
frequency response
transformer windings
power transformers
coils
sensors
mechanical variables measurement
deformation
excitation signal
response signal
magnetic field coupling
frequency sweep signal
rogowski coil sensor
high-voltage bushing
power station
strong electromagnetic power frequency noise
magnetic coupling
winding deformation detection
online frequency response curve online analysis
response current signal measurement
voltage 72.5 kv
voltage 35.0 kv
voltage 110.0 kv
voltage 10.0 kv
Online Access:https://digital-library.theiet.org/content/journals/10.1049/hve.2019.0134

Internet

https://digital-library.theiet.org/content/journals/10.1049/hve.2019.0134

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