Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 21st International Symposium on High Voltage Engineering |
| Subtitle of host publication | ISH 2019 |
| Editors | Bálint Németh |
| Place of Publication | Cham |
| Pages | 894-905 |
| Number of pages | 12 |
| Volume | 2 |
| ISBN (electronic) | 978-3-030-31680-8 |
| Publication status | Published - 31 Oct 2019 |
| Event | 21st International Symposium on High Voltage Engineering, ISH 2019 - Budapest, Hungary Duration: 26 Aug 2019 → 30 Aug 2019 |
Publication series
| Name | Lecture Notes in Electrical Engineering |
|---|---|
| Publisher | Springer Nature Switzerland |
| Volume | 599 |
| ISSN (Print) | 1876-1100 |
| ISSN (electronic) | 1876-1119 |
Abstract
Partial discharge (PD) measurement as a common method for assessing the insulation system of power transformers could be used to detect a fault in the insulation system in early stages. In general, finding the location of the fault in the insulation system is not straightforward even after removing the active part due to the complex structure of power transformers. Therefore, a precise PD localization can also substantially reduces the time and cost of troubleshooting. Electrical PD measurement is one of the methods for localization of PDs, which already is extensively applied for detecting PD signals. It also provides information regarding PD pattern and the signal shape, which are very valuable to evaluate the insulation system condition. In this method, two measured PD signals at two ends of the winding are employed for localization. The division of measured PD signals in the frequency domain by transfer functions of each point along the winding results in a pair of calculated signals. The point along the winding at that its pair of calculated signals is more similar to each other is the location of the original PD. In this contribution, some PDs are injected in different points along the winding of a distribution transformer using a PD calibrator. Thereupon, they are measured at the two winding ends and also in injection points. In the first step, the effect of measurement bandwidth on the shape of the measured PD pulses is investigated. Then, the effect of these bandwidths on PD localization is scrutinized.
Keywords
- Frequency domain analysis, Partial discharge localization, Power transformer
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
Proceedings of the 21st International Symposium on High Voltage Engineering: ISH 2019. ed. / Bálint Németh. Vol. 2 Cham, 2019. p. 894-905 (Lecture Notes in Electrical Engineering; Vol. 599).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Effect of Measurement Bandwidth on Partial Discharge Localization Accuracy in Power Transformers
AU - Seifi, Sahand
AU - Werle, Peter
AU - Mohseni, Hossein
AU - Shayegani Akmal, Amir Abbas
PY - 2019/10/31
Y1 - 2019/10/31
N2 - Partial discharge (PD) measurement as a common method for assessing the insulation system of power transformers could be used to detect a fault in the insulation system in early stages. In general, finding the location of the fault in the insulation system is not straightforward even after removing the active part due to the complex structure of power transformers. Therefore, a precise PD localization can also substantially reduces the time and cost of troubleshooting. Electrical PD measurement is one of the methods for localization of PDs, which already is extensively applied for detecting PD signals. It also provides information regarding PD pattern and the signal shape, which are very valuable to evaluate the insulation system condition. In this method, two measured PD signals at two ends of the winding are employed for localization. The division of measured PD signals in the frequency domain by transfer functions of each point along the winding results in a pair of calculated signals. The point along the winding at that its pair of calculated signals is more similar to each other is the location of the original PD. In this contribution, some PDs are injected in different points along the winding of a distribution transformer using a PD calibrator. Thereupon, they are measured at the two winding ends and also in injection points. In the first step, the effect of measurement bandwidth on the shape of the measured PD pulses is investigated. Then, the effect of these bandwidths on PD localization is scrutinized.
AB - Partial discharge (PD) measurement as a common method for assessing the insulation system of power transformers could be used to detect a fault in the insulation system in early stages. In general, finding the location of the fault in the insulation system is not straightforward even after removing the active part due to the complex structure of power transformers. Therefore, a precise PD localization can also substantially reduces the time and cost of troubleshooting. Electrical PD measurement is one of the methods for localization of PDs, which already is extensively applied for detecting PD signals. It also provides information regarding PD pattern and the signal shape, which are very valuable to evaluate the insulation system condition. In this method, two measured PD signals at two ends of the winding are employed for localization. The division of measured PD signals in the frequency domain by transfer functions of each point along the winding results in a pair of calculated signals. The point along the winding at that its pair of calculated signals is more similar to each other is the location of the original PD. In this contribution, some PDs are injected in different points along the winding of a distribution transformer using a PD calibrator. Thereupon, they are measured at the two winding ends and also in injection points. In the first step, the effect of measurement bandwidth on the shape of the measured PD pulses is investigated. Then, the effect of these bandwidths on PD localization is scrutinized.
KW - Frequency domain analysis
KW - Partial discharge localization
KW - Power transformer
UR - http://www.scopus.com/inward/record.url?scp=85085055785&partnerID=8YFLogxK
U2 - 10.1007/978-3-030-31680-8_87
DO - 10.1007/978-3-030-31680-8_87
M3 - Conference contribution
SN - 978-3-030-31679-2
SN - 978-3-030-31682-2
VL - 2
T3 - Lecture Notes in Electrical Engineering
SP - 894
EP - 905
BT - Proceedings of the 21st International Symposium on High Voltage Engineering
A2 - Németh, Bálint
CY - Cham
T2 - 21st International Symposium on High Voltage Engineering, ISH 2019
Y2 - 26 August 2019 through 30 August 2019
ER -