1. Improved operation of differential protection of power transformers for internal faults
2. K. P. Vittal and D. B. Fakruddin, 1998, " Development of digital model of power transformer and digital differential protection scheme," International Conference Modern Trends in Protection Scheme of Electric Power Apparatus and System, pp. IV 21-23.
3. Improved operation of power transformer protection using artificial neural network
4. Z. Moravej, D. N. Vishwakarma, and S. P. Singh, 1998, "Applicability of artificial neural networks to power transformer protection: An over-view," Proceeding of 14th National Convention of Electrical Engineers on Modern Trend in the Transmission Systems, pp. 230-235, I.I.T., Kanpur.
5. D. Van Dommelen and K W. Dommel, 1987, Pc-EMTP User's Manual, Alternative Transients, Programe Rule Book, Vol. 7, No. 2.