7Makarov S N, Emanuel A E. Corrected harmonic loss factor for transformers supplying nonsinusoidal load currents[C]//Ninth International Conference on Harmonics and Quality of Power Proceeding. Orlando: Institute of Electrical and Electronics Engineers, Inc., 2000,87-90.
8Transformers Committee of the IEEE Power Engineering Society. IEEE Std C57. 110-2008 IEEE Recommended practice for establishing liquid-filled and dry-type power and distribution transformer capability when supplying nonsinusoidal load currents [S]. New York: The Institute of Electrical and Electronics Engineers, Inc., 2008.
9Yildirim D, Fuchs E F. Measured transformer derating and comparison with harmonic loss factor(FHL) approach[J]. IEEE Transactions on Power Delivery, 2000,15 (1) : 186.