Air Core Transformer Winding Disk Deformation: A Precise Study on Mutual Inductance Variation and Its Influence on Frequency Response Spectrum
| Autor: | B.T. Phung, Trevor Blackburn, Svyatoslav Nezhivenko, Mehdi Bagheri |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Frequency response
General Computer Science 020209 energy Acoustics 02 engineering and technology 01 natural sciences Capacitance radial deformation law.invention law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering General Materials Science Axial deformation Transformer Electrical conductor transformer winding deformation 010302 applied physics Physics Leakage inductance business.industry General Engineering Electrical engineering Inductance Transformer windings Electromagnetic coil frequency response analysis lcsh:Electrical engineering. Electronics. Nuclear engineering business lcsh:TK1-9971 |
| Zdroj: | IEEE Access, Vol 6, Pp 7476-7488 (2018) |
| ISSN: | 2169-3536 |
| Popis: | It is well-known that the deformation of transformer winding can produce detectable changes to the frequency response spectrum compared with a referenced past measurement. To interpret such changes for diagnostic purposes, main causes of the trace deviation need to be recognized precisely. In addition, it is useful that the interpretation of transformer frequency response is classified in a way that IoT-based techniques can be developed in the near future to analyze the transformer mechanical integrity. This paper has specifically concentrated on the inductance and capacitance variation due to the axial and radial disk deformation of transformer winding. Analytical analyses on self- and mutual-inductance variations are discussed and capacitance variation is studied in detail for symmetrical and asymmetrical transformer disk deformations. A numerical example is provided to establish the analytical approach and compare inductance and capacitance variation. The analytical approach is finally examined through the experimental study of disk deformation in a 66 kV transformer winding. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|