Frequency Domain Diagnostics of Transformer Insulation
https://doi.org/10.21122/2220-9506-2019-10-4-353-359
Abstract
The first part of paper deals with the base information about diagnostics of power transformers. In this part are presented differently insulating methods, for example method of recovery voltage method, method of polarization and depolarization currents and chromatographic analysis.
The second part of paper deals use of method of frequency domain spectroscopy for oil power transformers. This method is used in analysis insulating condition of power transformer with system of oil-paper. It was found, that the results of these tests are highly impacted by the operating temperature during the experimental measurement. Moisture and conductivity between insulating paper and oil in an insulating system are highly dependent from temperature.
In the other part, the paper presents experimental results of the frequency diagnostic measurement for a real single-phase traction transformer 110/27 kV at different operating temperatures and states (with oil and without).
Finally in the last part, the paper presents comparing frequency insulating measurements among several the same single-phase transformers 110/27 kV.
About the Authors
M. Gutten
University of Žilina
Slovakia
Univerzitná 1, Žilina 010 26
Slovakia
Univerzitná 1, Žilina 010 26
M. Šebok
University of Žilina
Slovakia
Univerzitná 1, Žilina 010 26
Slovakia
Univerzitná 1, Žilina 010 26
D. Korenčiak
University of Žilina
Slovakia
Univerzitná 1, Žilina 010 26
Slovakia
Univerzitná 1, Žilina 010 26
P. Brnčal
University of Žilina
Slovakia
Univerzitná 1, Žilina 010 26
Slovakia
Univerzitná 1, Žilina 010 26
M. Kubiš
University of Žilina
Slovakia
Univerzitná 1, Žilina 010 26
Slovakia
Univerzitná 1, Žilina 010 26
P. Żukowski
Lublin University of Technology
Poland
Poland
Address for correspondence: P. Żukowski – Lublin University of Technology, Nadbystrzycka str., 38A, Lublin 20-618, Poland e-mail: p.zhukowski@pollub.pl
T. N. Koltunowicz
Lublin University of Technology
Poland
Nadbystrzycka str., 38A, Lublin 20-618
Poland
Nadbystrzycka str., 38A, Lublin 20-618
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Review
For citations:
Gutten M., Šebok M., Korenčiak D., Brnčal P., Kubiš M., Żukowski P., Koltunowicz T.N. Frequency Domain Diagnostics of Transformer Insulation. Devices and Methods of Measurements. 2019;10(4):353-359. https://doi.org/10.21122/2220-9506-2019-10-4-353-359
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