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Title

A New Technique for On-line Monitoring of Transformer Bushings

Year: 1384
COI: PSC20_251
Language: PersianView: 1,654
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Authors

Alireza Setayeshmehr - Institute of Electric Power Systems, High Voltage Engineering Section (Schering – Institute), University of Hannover, Callinstr. ۲۵ A, D-۳۰۱۶۷ Hannover, Germany
Alireza Akbari - Institute of Electric Power Systems, High Voltage Engineering Section (Schering – Institute), University of Hannover, Callinstr. ۲۵ A, D-۳۰۱۶۷ Hannover, Germany
Hossein Borsi - Institute of Electric Power Systems, High Voltage Engineering Section (Schering – Institute), University of Hannover, Callinstr. ۲۵ A, D-۳۰۱۶۷ Hannover, Germany
Ernst Gockenbach - Institute of Electric Power Systems, High Voltage Engineering Section (Schering – Institute), University of Hannover, Callinstr. ۲۵ A, D-۳۰۱۶۷ Hannover, Germany

Abstract:

Bushings are essential components of power transformers and are one of the common causes of catastrophic failure for transformers. The majority of bushings are as old as the transformers and therefore maintaining and monitoring of bushing condition is essential. The power factor and capacitance (PF&C) are the best indicators of the bushing’s condition. Off-line measurement of the PF&C needs to remove the power transformer from the network and a normal capacitance (NC) must be installed in the substation. In this contribution a novel method for on-line measuring of PF&C for power transformer condenser bushings with the software, hardware and sensors used in this method are introduced. According to laboratory measurement results this method can be used with acceptable accuracy in measurement of PF&C to detect a change in the bushing oil level, an increase in the oil moisture of the bushing and the temperature variation of the bushing oil.

Keywords:

Power Transformer , Condenser Bushing Monitoring , Power Factor and Capacitance Measuring

Paper COI Code

This Paper COI Code is PSC20_251. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/20560/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Setayeshmehr، Alireza و Akbari، Alireza و Borsi، Hossein و Gockenbach، Ernst،1384،A New Technique for On-line Monitoring of Transformer Bushings،20th International Power System Conference،Tehran،https://civilica.com/doc/20560

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  • Facilities Instruction, Standard, and Techniques, Volume 3-2, *Testing and Maintenance ...
  • Asghar. Akbari, H. Borsi, E. Gockenbach, M. Hadighi, *Experiences with ...

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