Simulation and Analytical Investigation of Different Combination of Single Phase Power Transformers

Authors: M. Salih Taci, N. Tayebi, I. Bozkır

Abstract:

In this paper, the equivalent circuit of the ideal single-phase power transformer with its appropriate voltage current measurement was presented. The calculated values of the voltages and currents of the different connections single phase normal transformer and the results of the simulation process are compared. As it can be seen, the calculated results are the same as the simulated results. This paper includes eight possible different transformer connections. Depending on the desired voltage level, step-down and step-up application transformer is considered. Modelling and analysis of a system consisting of an equivalent source, transformer (primary and secondary), and loads are performed to investigate the combinations. The obtained values are simulated in PSpice environment and then how the currents, voltages and phase angle are distributed between them is explained based on calculation.

Keywords: Transformer, simulation, equivalent model, parallel series combinations.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1340360

References:

[1] Vallamkonda Sankar, (November 19, 2012), “Preparation of Transformer Specifications”, IEEE Southern Alberta (SAS)- IEEE PES-IAS Seminer. on.
[2] A. C. Franklin, D. P. Franklin, “The J&P Transformer Book”, Aditya books private limited, New Delhi, pp-1-12, 1995.
[3] R. Singuor, P. Solanki, N. Pathak, D. Suresh Babu, (April 2012), “Simulation of Single Phase Transformer with Different Supplies”, International Journal of Scientific and Research Publications, Volume 2, Issue 4, pp 1-5.
[4] B. L. Theraja and A. K. Theraja, “A Textbook of Electrical Technology Vol II”, S. Chand publishers, Eighth Edition, 2005.
[5] M. S. Taci, I. Döşeyen, H. Gorgun “Determining the Harmonic Effects of Nonlinear Loads on Parallel Connected Transformers in Terms of Power Factor, “Power Quality '98”, Hyderabad, India. 1998.
[6] D. Trebolle, B. Valecillos, “Optimal Operation of Paralleled Power Transformers”, International Conference on Renewable Energies and Power Quality, Santandar, Spain, 2008.
[7] M. S. Taci, I. Döşeyen “Determining the Harmonic Components of Non-linear Impedance Loads in Term Resistances and Reactances by Using a Current Harmonic Method”, 9th. Mediterranean Electrotechnical Conference, MELECON 98, vol.2, pp. 1000 – 1003, 1998.
[8] E. T. Jaun, “Advanced Transformer Paralleling”, Rural Electric Power Conference, pp, B5/1 - B5/6, 2001.
[9] G. Calzolari, C. Saldaria “Power Transformers in Parallel Which Share a Neutral Resistance: How to Manage the Circulating Current Between the Secondary Windings”, International Conference on Power Systems Transients (IPST), 2005.
[10] Y. C. Kang, M. S. Lee, B. E. Lee, S. I. Jang “Estimation of the Circulating Currents in the Parallel Operation of Transformers”, The International Conference on Electrical Engineering, Okinawa, Japan, 2008.