Details
| Original language | English |
|---|---|
| Article number | 108895 |
| Journal | Measurement: Journal of the International Measurement Confederation |
| Volume | 172 |
| Early online date | 28 Dec 2020 |
| Publication status | Published - Feb 2021 |
Abstract
Electromagnetic (EM) wave propagation in the ultrahigh frequency (UHF) range, generated by partial discharges (PD) is widely employed for monitoring and diagnostic purposes in the field of gas-insulated substations for over a decade. For power transformers, this is a far more demanding challenge due to their complex inner structure. In this contribution, the application of the UHF measurement technique in power transformers is studied. Various influencing parameters on this special use case of sensors for PD measurements are discussed from an EM standpoint. Consequently, a practical approach towards determining an appropriate center frequency and bandwidth for performing UHF measurements depending on the test object is proposed and validated using practical measurements.
Keywords
- Partial discharges, PD classification, PD detection, PD diagnosis, Phase resolved partial discharge pattern, Power transformer, UHF measurement technique, UHF PRPD pattern
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Instrumentation
- Engineering(all)
- Electrical and Electronic Engineering
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In: Measurement: Journal of the International Measurement Confederation, Vol. 172, 108895, 02.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Optimal frequency selection for detection of partial discharges in power transformers using the UHF measurement technique
AU - Azirani, Mohammad Akbari
AU - Ariannik, Mohamadreza
AU - Werle, Peter
AU - Akbari, Asghar
N1 - Funding Information: The authors would like to express their gratitude towards the ABB Ltd, Switzerland for the support of this research.
PY - 2021/2
Y1 - 2021/2
N2 - Electromagnetic (EM) wave propagation in the ultrahigh frequency (UHF) range, generated by partial discharges (PD) is widely employed for monitoring and diagnostic purposes in the field of gas-insulated substations for over a decade. For power transformers, this is a far more demanding challenge due to their complex inner structure. In this contribution, the application of the UHF measurement technique in power transformers is studied. Various influencing parameters on this special use case of sensors for PD measurements are discussed from an EM standpoint. Consequently, a practical approach towards determining an appropriate center frequency and bandwidth for performing UHF measurements depending on the test object is proposed and validated using practical measurements.
AB - Electromagnetic (EM) wave propagation in the ultrahigh frequency (UHF) range, generated by partial discharges (PD) is widely employed for monitoring and diagnostic purposes in the field of gas-insulated substations for over a decade. For power transformers, this is a far more demanding challenge due to their complex inner structure. In this contribution, the application of the UHF measurement technique in power transformers is studied. Various influencing parameters on this special use case of sensors for PD measurements are discussed from an EM standpoint. Consequently, a practical approach towards determining an appropriate center frequency and bandwidth for performing UHF measurements depending on the test object is proposed and validated using practical measurements.
KW - Partial discharges
KW - PD classification
KW - PD detection
KW - PD diagnosis
KW - Phase resolved partial discharge pattern
KW - Power transformer
KW - UHF measurement technique
KW - UHF PRPD pattern
UR - http://www.scopus.com/inward/record.url?scp=85098453174&partnerID=8YFLogxK
U2 - 10.1016/j.measurement.2020.108895
DO - 10.1016/j.measurement.2020.108895
M3 - Article
AN - SCOPUS:85098453174
VL - 172
JO - Measurement: Journal of the International Measurement Confederation
JF - Measurement: Journal of the International Measurement Confederation
SN - 0263-2241
M1 - 108895
ER -