ISSN E 2409-2770
ISSN P 2521-2419

Frequencies Dominations for Different Rating of Distribution Transformer under Transients



Vol. 7, Issue 04, PP. 211-216, April 2020

DOI

Keywords: Frequency dominations, transients, Fast Fourier Transform, distribution transformer, high frequency modelling

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Power transients faults on high voltage lines are prominently due to high frequency transients. These transients affect the predicted life and efficiency of equipment. The Fast Fourier Transform (FFT) is helpful in analysing the effect of high frequencies and Frequency Response Analysis (FRA) provide support in diagnosis and detection of deformation in a transformers. The major aim of this study is to analyse the incorporation of frequencies based on resonating core of a particular transformer. Using transfer function method an impedance change in transformer has been observed when equipment is subjected to high voltage transients. The effect of change in impedance is that it degrade the life of a core with respect to time. In this paper, research that has been done already on Transformers of different ratings i.e. 100, 50 and 30 kVA are studied and then an experiment is performed on 50-kVA transformer. It was concluded that the core of a transformer having rating equal or less than 50 kVA practically shows single resonance behavior while above 50 kVA for instance 100-kVA transformer core resonates twice. In actual, result defines the core deviating frequency with respect to the rating of a transformer.


  1. Haseeb Faisal, haseebf1@hitecuni.edu.pk, Department of Electrical Engineering, HITEC University Taxila, Punjab, Pakistan, Pakistan.
  2. Kashif Imdad, engr.kashif@hitecuni.edu.pk, Department of Electrical Engineering, HITEC University Taxila, Punjab, Pakistan, Pakistan.
  3. Najeeb Hussain, najeebhussain@hitecuni.edu.pk, Department of Electrical Engineering, HITEC University Taxila, Punjab, Pakistan, Pakistan.
  4. Faisal Sharif, faisalsharifch@gmail.com, WAPDA, Islamabad, Pakistan, Pakistan.

Haseeb Faisal Dr. Kashif Imdad Najeeb Hussain Faisal Sharif "Frequencies Dominations for Different Rating of Distribution Transformer under Transients" Intern Vol. 7 Issue 04 PP. 211-216 April 2020 https://doi.org/10.34259/ijew.20.704211216


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