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Protection of Power Transformers By Using Continuous Wavelet Transform
MELECON 2006 - 2006 IEEE Mediterranean Electrotechnical Conference, 2006This paper presents the development of wavelet based transformer protection algorithm. Continuous wavelet transform (CWT) is used for analyzing discontinuities in the primary current signal during internal faults. A custom-built transformer with different tap windings is used for the laboratory studies.
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Impedance protection for power transformers
2015 68th Annual Conference for Protective Relay Engineers, 2015The distance protection principle, when applied to over-head lines and cables, is well known, widely applied and well proven. Also on large generating blocks it is often applied as one of the back-up protection functions. When it comes to typical power transformers, the conventional distance protection however has some limitations which have limited ...
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Algorithm using discrete wavelet transform to power transformers protection
2013 48th International Universities' Power Engineering Conference (UPEC), 2013This paper presents a new algorithm for power transformers protection, based on monitoring the variation of the last samples of the detail coefficients, called detail signals, the first level of decomposition of DWT. In situations of inrush current the variation of the detail signals are close to zero, on the other hand, in case of an internal fault ...
Jeferson Prates Marques +2 more
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Differential protection of power transformers using the wavelet transform
2014 IEEE PES General Meeting | Conference & Exposition, 2014Several disturbances involving power transformers commonly occur in the Electric Power System. External faults near the transformer, internal faults, as well as transformer energizing and overexcitation are the main events evaluated in the protection of the power transformers.
R. P. Medeiros +2 more
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Wavelet Transform Based Differential Protection Algorithm for Power Transformer
2020Uludag Univ, Muhendislik Fakultesi, Elektrik Elektronik Muhendisligi Bolumu, Istanbul Teknik Univ, Elektrik Elektronik Fakultesi, TMMOB Elektrik Muhendisleri Odasi Bursa ...
Ertan, Merve, Ozgonenel, Okan
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Power Transformer Faults: Analysis, Classification and Protection
Engineering WorldWith the increase in power consumption, the safety of the power transformers has increased manifolds. Ideally, there should be a no-fault operation of power transformer which is yet to be achieved. The objective of this paper is to provide a complete protection scheme of power transformers.
Vikramsingh R. Parihar +4 more
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Integrated Digital Power Transformer Protection
Proceedings. Joint International Power Conference Athens Power Tech,, 2005B. Grear, D. Dolinar, J. Pihler
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