Incipient fault detection in 33/11kV power transformers by using combined Dissolved Gas Analysis technique and acoustic partial discharge measurement and validated through untanking

Mohd Raffi Samsudin, Ahmad Qisti Ramli, Ahmad Berhanuddin, Young Zaidey Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Power transformer consists of components which are under consistent thermal and electrical stresses. The major component which degrades under these stresses is the paper insulation of the power transformer. The electrical fault can develop into thermal fault such as localized insulation burning or hot-spots. Any fault in the transformer can be detected by using Dissolved Gas Analysis technique. In this paper, the detection of electrical and thermal faults in 14 units of 33/11kV, 30 MVA and 15MVA transformers were done by using Dissolved Gas Analysis (DGA). Then, the acoustic partial discharge test was carried out to detect the activity and locate the source of the electrical fault. All the transformers were untanked and the inspection was done. From the inspection done, there were a few incipient faults detected such as overheating due to loose connection, sharp edges, insulation burning, choking effect due to moisture and surface tracking in On-Load Tap Changer (OLTC) compartment. As a conclusion, the combination of the acoustic partial discharge technique and DGA technique have proved to be a useful tool in detecting and locating incipient faults in the power transformer.

Original languageEnglish
Title of host publicationProceedings - International Symposium
Subtitle of host publicationModern Electric Power Systems, MEPS'10
Publication statusPublished - 01 Dec 2010
EventInternational Symposium on Modern Electric Power Systems, MEPS'10 - Wroclaw, Poland
Duration: 20 Sep 201022 Sep 2010

Publication series

NameProceedings - International Symposium: Modern Electric Power Systems, MEPS'10

Other

OtherInternational Symposium on Modern Electric Power Systems, MEPS'10
CountryPoland
CityWroclaw
Period20/09/1022/09/10

Fingerprint

Gas fuel analysis
Power transformers
Partial discharges
Fault detection
Insulation
Acoustics
Inspection
Moisture
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Samsudin, M. R., Ramli, A. Q., Berhanuddin, A., & Yang, Y. Z. (2010). Incipient fault detection in 33/11kV power transformers by using combined Dissolved Gas Analysis technique and acoustic partial discharge measurement and validated through untanking. In Proceedings - International Symposium: Modern Electric Power Systems, MEPS'10 [6007229] (Proceedings - International Symposium: Modern Electric Power Systems, MEPS'10).
Samsudin, Mohd Raffi ; Ramli, Ahmad Qisti ; Berhanuddin, Ahmad ; Yang, Young Zaidey. / Incipient fault detection in 33/11kV power transformers by using combined Dissolved Gas Analysis technique and acoustic partial discharge measurement and validated through untanking. Proceedings - International Symposium: Modern Electric Power Systems, MEPS'10. 2010. (Proceedings - International Symposium: Modern Electric Power Systems, MEPS'10).
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abstract = "Power transformer consists of components which are under consistent thermal and electrical stresses. The major component which degrades under these stresses is the paper insulation of the power transformer. The electrical fault can develop into thermal fault such as localized insulation burning or hot-spots. Any fault in the transformer can be detected by using Dissolved Gas Analysis technique. In this paper, the detection of electrical and thermal faults in 14 units of 33/11kV, 30 MVA and 15MVA transformers were done by using Dissolved Gas Analysis (DGA). Then, the acoustic partial discharge test was carried out to detect the activity and locate the source of the electrical fault. All the transformers were untanked and the inspection was done. From the inspection done, there were a few incipient faults detected such as overheating due to loose connection, sharp edges, insulation burning, choking effect due to moisture and surface tracking in On-Load Tap Changer (OLTC) compartment. As a conclusion, the combination of the acoustic partial discharge technique and DGA technique have proved to be a useful tool in detecting and locating incipient faults in the power transformer.",
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Samsudin, MR, Ramli, AQ, Berhanuddin, A & Yang, YZ 2010, Incipient fault detection in 33/11kV power transformers by using combined Dissolved Gas Analysis technique and acoustic partial discharge measurement and validated through untanking. in Proceedings - International Symposium: Modern Electric Power Systems, MEPS'10., 6007229, Proceedings - International Symposium: Modern Electric Power Systems, MEPS'10, International Symposium on Modern Electric Power Systems, MEPS'10, Wroclaw, Poland, 20/09/10.

Incipient fault detection in 33/11kV power transformers by using combined Dissolved Gas Analysis technique and acoustic partial discharge measurement and validated through untanking. / Samsudin, Mohd Raffi; Ramli, Ahmad Qisti; Berhanuddin, Ahmad; Yang, Young Zaidey.

Proceedings - International Symposium: Modern Electric Power Systems, MEPS'10. 2010. 6007229 (Proceedings - International Symposium: Modern Electric Power Systems, MEPS'10).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Ramli, Ahmad Qisti

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AU - Yang, Young Zaidey

PY - 2010/12/1

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N2 - Power transformer consists of components which are under consistent thermal and electrical stresses. The major component which degrades under these stresses is the paper insulation of the power transformer. The electrical fault can develop into thermal fault such as localized insulation burning or hot-spots. Any fault in the transformer can be detected by using Dissolved Gas Analysis technique. In this paper, the detection of electrical and thermal faults in 14 units of 33/11kV, 30 MVA and 15MVA transformers were done by using Dissolved Gas Analysis (DGA). Then, the acoustic partial discharge test was carried out to detect the activity and locate the source of the electrical fault. All the transformers were untanked and the inspection was done. From the inspection done, there were a few incipient faults detected such as overheating due to loose connection, sharp edges, insulation burning, choking effect due to moisture and surface tracking in On-Load Tap Changer (OLTC) compartment. As a conclusion, the combination of the acoustic partial discharge technique and DGA technique have proved to be a useful tool in detecting and locating incipient faults in the power transformer.

AB - Power transformer consists of components which are under consistent thermal and electrical stresses. The major component which degrades under these stresses is the paper insulation of the power transformer. The electrical fault can develop into thermal fault such as localized insulation burning or hot-spots. Any fault in the transformer can be detected by using Dissolved Gas Analysis technique. In this paper, the detection of electrical and thermal faults in 14 units of 33/11kV, 30 MVA and 15MVA transformers were done by using Dissolved Gas Analysis (DGA). Then, the acoustic partial discharge test was carried out to detect the activity and locate the source of the electrical fault. All the transformers were untanked and the inspection was done. From the inspection done, there were a few incipient faults detected such as overheating due to loose connection, sharp edges, insulation burning, choking effect due to moisture and surface tracking in On-Load Tap Changer (OLTC) compartment. As a conclusion, the combination of the acoustic partial discharge technique and DGA technique have proved to be a useful tool in detecting and locating incipient faults in the power transformer.

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Samsudin MR, Ramli AQ, Berhanuddin A, Yang YZ. Incipient fault detection in 33/11kV power transformers by using combined Dissolved Gas Analysis technique and acoustic partial discharge measurement and validated through untanking. In Proceedings - International Symposium: Modern Electric Power Systems, MEPS'10. 2010. 6007229. (Proceedings - International Symposium: Modern Electric Power Systems, MEPS'10).