A Realistic Method for Remaining Service Life Prediction of Power Transformer

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In recent years, many studies have been done on monitoring, analyzing and aging performance of power transformer which is one of the most important components of power system. It is important to know the loading capacitance and remaining service life of a transformer to ensure its economical and secured operation. In this study, a realistic method is presented for remaining service life prediction and life-loss calculation of the power transformers. The proposed method is applicable for all the power transformers and can be updated in the light of the relevant standards for the different liquid and solid insulation materials. As a case study, life-loss calculation and the remaining service life prediction is carried out using thermal model that has been created considering the parameters of the 250 MVA mineral oil–immersed power transformer
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Power Transformer; Service Life; Remaining Service Life; Life Loss; Prediction

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J.W. Stahlhut, G.T. Heydt, N.J. Selover, A Preliminary Assessment of the Impact of Ambient Temperature Rise on Distribution Transformer Loss of Life, IEEE Transactions on Power Delivery, vol. 23 n. 4, October 2008, pp. 2000 – 2007.

M.K. Pradhan, T.S. Ramu, On the Estimation of Elapsed Life of Oil-Immersed Power Transformers, IEEE Transactions on Power Delivery, vol. 20 n. 3, July 2005, pp. 1962-1969.

S. B. Sadati, M.Y. Asrami, M. Taghipour, Current Harmonic and Environment Temperature Impacts on Transformers, International Review on Modelling and Simulations (I.RE.MO.S.), vol. 3, n. 5, October 2010, pp. 1097-1102.

S.M. Mousavi Agah, A. Abbasi, Probability of Transition to Ageing Failure Based on Usage History of Distribution Transformers, International Review on Modelling and Simulations (I.RE.MO.S.),, vol. 5, n. 4, August 2012, pp. 1634-1639.

I. Iskender, A. Mamizadeh, Thermal Capacitance Calculation of Top-Oil Temperature for Power Transformers, International Review of Electrical Engineering (IREE), vol. 4, n. 5, September – October 2009, pp. 882-886.

K. Najdenkoski, G. Rafajlovski, V. Dimcev, Thermal aging of distribution transformers according to IEEE and IEC standards, Power Engineering Society General Meeting, 24-28 June 2007, Tampa, USA.

IEEE Guide for Loading Mineral-Oil-Immersed Transformers, IEEE C57.91-1995.

IEC Loading Guide For Oil-Immersed Power Transformers, IEC - 60354, 91.

C.P. McShane, K.J. Rapp, J.L. Corkran, G.A. Gauger, J. Luksich, Aging of paper insulation in natural ester dielectric fluid, IEEE/PES Transmission and Distribution Conference and Exposition, 28 Oct - 02 Nov 2001, Atlanta, USA.

Y. Bicen, Y. Cilliyuz,. F. Aras, G. Aydugan, An assessment on aging model of IEEE/IEC standards for natural and mineral oil-immersed transformer, IEEE International Conference on Dielectric Liquids (ICDL), 26-30 June 2011, Trondheim, Norway.

A.A. Suleiman, N.A. Muhamad, A Case for the Establishment of Malaysian Standard for Biodegradable Insulation Oil in Malaysia Transformers, International Review on Modelling and Simulations (I.RE.MO.S.), vol. 4, n. 6, December 2011, pp. 2756-2763.

IEC Power transformers - Part 7: Loading guide for oil-immersed power transformers, IEC 60076-7, 2005-12.

P.K. Sen, P. Sarunpong, Overloading and loss-of-life assessment guıdelines of oil-cooled trnasformers, Rural Electric Power Conference, 29 April - 01 May 2001, Little Rock, USA.

G. Swift, T.S. Moliniski, W. Lehn, A Fundamental Approach to Transformer Thermal Modeling-Part I: Theory and Equivalent Circuit, IEEE Trans. Power Delivery, vol. 16 n. 2, April 2001, pp. 171-175.

B. Lee, J. Jeong, C. Park, I. Song, The characteristics of winding temperature for the natural ester filled transformer up to and including 500 kVA, Annual Report Conference on Electrical Insulation Dielectric Phenomena, 26-29 October. 2008, Quebec, Canada.

S.P. Moore, Some Considerations for New and Retrofill Applications of Natural Ester Dielectric Fluids in Medium and Large Power Transformers, IEEE Power & Energy Society General Meeting , 26-30 July 2009, Calgary, Canada.


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