Experimental investigation on FRA diagnosis of transformer faults (特集 Power and Energy Technology (電力・エネルギー技術))

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概要

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• The need for economical, reliable and effective delivery of electric power leads to the search for new, efficient and effective methods for diagnosing the high voltage equipments in the industries all over the world. As the average usage period of transformers increases, the necessity to know the internal condition of transformers is increasing. It is therefore critically important to establish monitoring and diagnostic techniques that can perform transformer condition assessment. Frequency response analysis, generally known as FRA, is one of the technologies to diagnose transformers.Using case studies, this paper presents the effectiveness of FRA as measurements for detecting transformer faults. This paper introduces the fact that FRA waveforms have useful information about diagnosis of fault on winding shield and core earths, and that the condition outside transformers can affect frequency response characteristics. The FRA measurement results are further investigated through a simulation study using a computer model.

• 2007-07-01

著者

• Miyagi Katsunori

  R&d Division Japan Ae Power Systems Corporation

• Sano Takahiro

  Transformer Division Japan Ae Power Systems Corporation

• MIYAGI Katsunori

  R&D Division, Japan AE Power Systems Corporation

関連論文

• Experimental investigation on FRA diagnosis of transformer faults (特集 Power and Energy Technology (電力・エネルギー技術))

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