Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of 2021 5th International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2021 |
| Editors | Nasirul Haque, Preetha P., Sunitha K., Sindhu T.K., Biswendu Chatterjee |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 138-144 |
| Number of pages | 7 |
| ISBN (electronic) | 9780738112916 |
| Publication status | Published - Dec 2021 |
| Event | 5th International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2021 - Kozhikode, India Duration: 3 Dec 2021 → 5 Dec 2021 |
Publication series
| Name | Proceedings of 2021 5th International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2021 |
|---|
Abstract
Transformer explosions and fires are the most dangerous consequences of transformer faults. Besides the financial loss, consequences are often environmental pollution, fires and personal injury or even death. Especially for substations in densely populated areas, this is a very high risk. As protection each transformer is equipped with a Buchholzrelay (BHR), which identifies such failures, thus a circuit breaker (CB) can trip the transformer. The time between the internal breakdown and the disconnection of the transformer is approximately 4-5 cycles, which are almost equally split between the response times of the BHR and the CB. However, in some cases the tripping of the transformer is not fast enough in order to prevent a tank rupture and the catastrophic collateral damages described above. Therefore faster arc detection systems are under investigation like the use of photo sensitive semiconductors inside the transformer tank to detect the light emission from an arc and to trigger the circuit breaker. Currently, there are many unanswered questions about the reliability, sensitivity, operating temperatures and lifespan of these new optic systems. In this paper the characteristics of different light sensitive semiconductors, such as light dependent resistors, and photodiodes are compared in regard to their possible application inside power transformers. Moreover, performance of certain measuring circuits with the different semiconductors are presented and compared at different distances to an arc with temperature variation. Finally, the advantages and disadvantages of the different semiconductor types, and the benefits and limits of arc sensing with light sensors are discussed.
Keywords
- Aging, Electric arc, Electromagnetic interference, Light dependent resistor (LDR), Light detection, Photodiode, Transformer
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Electrical and Electronic Engineering
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
Sustainable Development Goals
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Proceedings of 2021 5th International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2021. ed. / Nasirul Haque; Preetha P.; Sunitha K.; Sindhu T.K.; Biswendu Chatterjee. Institute of Electrical and Electronics Engineers Inc., 2021. p. 138-144 (Proceedings of 2021 5th International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2021).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Comparison of Light Sensors for Arc Detection inside Power Transformer Tanks
T2 - 5th International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2021
AU - Kuhnke, Moritz
AU - Sargazi, Reza
AU - Werle, Peter
PY - 2021/12
Y1 - 2021/12
N2 - Transformer explosions and fires are the most dangerous consequences of transformer faults. Besides the financial loss, consequences are often environmental pollution, fires and personal injury or even death. Especially for substations in densely populated areas, this is a very high risk. As protection each transformer is equipped with a Buchholzrelay (BHR), which identifies such failures, thus a circuit breaker (CB) can trip the transformer. The time between the internal breakdown and the disconnection of the transformer is approximately 4-5 cycles, which are almost equally split between the response times of the BHR and the CB. However, in some cases the tripping of the transformer is not fast enough in order to prevent a tank rupture and the catastrophic collateral damages described above. Therefore faster arc detection systems are under investigation like the use of photo sensitive semiconductors inside the transformer tank to detect the light emission from an arc and to trigger the circuit breaker. Currently, there are many unanswered questions about the reliability, sensitivity, operating temperatures and lifespan of these new optic systems. In this paper the characteristics of different light sensitive semiconductors, such as light dependent resistors, and photodiodes are compared in regard to their possible application inside power transformers. Moreover, performance of certain measuring circuits with the different semiconductors are presented and compared at different distances to an arc with temperature variation. Finally, the advantages and disadvantages of the different semiconductor types, and the benefits and limits of arc sensing with light sensors are discussed.
AB - Transformer explosions and fires are the most dangerous consequences of transformer faults. Besides the financial loss, consequences are often environmental pollution, fires and personal injury or even death. Especially for substations in densely populated areas, this is a very high risk. As protection each transformer is equipped with a Buchholzrelay (BHR), which identifies such failures, thus a circuit breaker (CB) can trip the transformer. The time between the internal breakdown and the disconnection of the transformer is approximately 4-5 cycles, which are almost equally split between the response times of the BHR and the CB. However, in some cases the tripping of the transformer is not fast enough in order to prevent a tank rupture and the catastrophic collateral damages described above. Therefore faster arc detection systems are under investigation like the use of photo sensitive semiconductors inside the transformer tank to detect the light emission from an arc and to trigger the circuit breaker. Currently, there are many unanswered questions about the reliability, sensitivity, operating temperatures and lifespan of these new optic systems. In this paper the characteristics of different light sensitive semiconductors, such as light dependent resistors, and photodiodes are compared in regard to their possible application inside power transformers. Moreover, performance of certain measuring circuits with the different semiconductors are presented and compared at different distances to an arc with temperature variation. Finally, the advantages and disadvantages of the different semiconductor types, and the benefits and limits of arc sensing with light sensors are discussed.
KW - Aging
KW - Electric arc
KW - Electromagnetic interference
KW - Light dependent resistor (LDR)
KW - Light detection
KW - Photodiode
KW - Transformer
UR - http://www.scopus.com/inward/record.url?scp=85124967138&partnerID=8YFLogxK
U2 - 10.1109/CATCON52335.2021.9670521
DO - 10.1109/CATCON52335.2021.9670521
M3 - Conference contribution
AN - SCOPUS:85124967138
T3 - Proceedings of 2021 5th International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2021
SP - 138
EP - 144
BT - Proceedings of 2021 5th International Conference on Condition Assessment Techniques in Electrical Systems, CATCON 2021
A2 - Haque, Nasirul
A2 - P., Preetha
A2 - K., Sunitha
A2 - T.K., Sindhu
A2 - Chatterjee, Biswendu
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 3 December 2021 through 5 December 2021
ER -