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Wavelet Transform Approach for Detection of inter turn Faults in the HV Windings of Power Transformer

Prema Kumar Navuri *, Jinka Amarnath**

*Assistant Professor, EEE, R.V.R&J.C. College of Engineering, Guntur, Andhra Pradesh, India.

** Professor, Department of Electrical & Electronics Engineering, JNT University, Kukatpally, Hyderabad, Andhra Pradesh, India.

Periodicity:October - December'2007
DOI : https://doi.org/10.26634/jee.1.2.446

Abstract

The aim of this research is to detect incipient faults like turn to turn faults in the windings of power transformer using Wavelet transform technique. An experimental procedure of frequency response analysis (FRA) test is conducted on the windings of power transformer by applying impulse voltage of 1.2/50µs wave and the winding neutral currents are recorded. The recorded waveforms are convoluted into wavelet domain and the winding deformations are identified. Different incipient faults have been simulated using SPICE software and the waveforms are analyzed using MATLAB WAVELET toolbox. Experiments and simulations are carried out on a 61MVA, 230kV class transformer winding to identify the winding deformations on the characteristics of transformer. In this paper simulated results for discrete wavelet transform have been presented for fault identification. By using this technique, exact time of fault where it is occurred can be identified. By knowing the exact time of fault occurrence, we can detect the exact location of the fault.

Keywords

Transformer Windings, Incipient Faults, Wavelet Transform, Frequency Response Analysis, Low Voltage Impulse, Simulations.

How to Cite this Article?

N. Prema Kumar and Jinka Amarnath (2007). Wavelet Transform Approach for Detection of inter turn Faults in the HV Windings of Power Transformer. i-manager’s Journal on Electrical Engineering, 1(2), Oct-Dec 2007, Print ISSN 0973-8835, E-ISSN 2230-7176, pp. 95-103. https://doi.org/10.26634/jee.1.2.446

References

[1].Karen.L.Butler-purry &Mustafa Bagriyanik,"Characterization of transients in transformers using discrete wavelet transforms",IEEE Transactions on power Systems, Vol. 18, No. 2, May2003.

[2] . M.Lenz & K.Foser, "Wavelet transforms application during impulse test of power transformers". ISHVE 2003

[3] . S.Tenbohlen & S.A.Ryder, "Making frequency response analysis measurements: a comparison of the swept frequency and low voltage impulse methods". ISHVE2003.

[4] . Johan Driesen & Ronnie Belmans, "Time-Frequency analysis in power measurements using complex wavelets". IEEE Transactions2002,

[5] . Peilin L.Mao & Raj.k.Aggarwal, "A novel approach to the classification of the transient phenomena in power transformers using combined wavelet transform and neural network". IEEE Transactions on Power Delivery, VOI.16, No.4, October2001.

[6] . K S Yeo and D T W Chan, "Application of Wavelet Analysis for Generator Stator Fault Detection"

[7] . M R Rao and B P Singh, "Detection and Localisation of Interturn fault in the HV Winding of a Power Transformer Using Wavelets", IEEE Trans. Dielectrics and Insulations, Vol. 8 No. 4 August 2001.

[8] . L Satish and B Nazneen, "Wavelet base Denoisiong of Partial Discharge Signals Buried in Excessive Noise and Interference", IEEE Trans. Dielectrics and Insulations, Vol. lONo.2 April 2003.

[9] . Qi Li and David, "A New Technique of Transformer Protection Based on Wavelet Analysis"

[10] . Amara Graps , Wavelets Reference Guide, Page No: 1-6

[11] . R.Malewski and B.Poulin, "Impulse testing of power transformers using transfer function method", IEEE Trans. Power delivery, Vol.3 April 1998.

[12] . Y.Zhang, X.Ding, Y.Liu, R J .Griff in, "An ANN Approach to Transformer fault diagnosis", IEEE Trans. Power Delivery, Vol. 11, No.4, October 1996, pp 1836-1841.

[13] . R Sreedhar Rao, "Detection of Faults in a Power Transformer using Artificial Neural Networks", EAIT-2001, IIT Kharagpur, India, Dec 10-12-2001, Page 889-892.

[14] . Fredereik W.Grover, "Inductance Calculations, Working formulas and Tables"; Dover Publication Inc, New York, 1946.

[15] . Gupta S.C and Singh B.R "Determination of Impulse Voltage Distribution in Windings of Large Power Transformers", Electric Power System research 25(1992), pp 183-189.

Wavelet Transform Approach for Detection of inter turn Faults in the HV Windings of Power Transformer

Abstract

Keywords

How to Cite this Article?

References

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