2IEEE Std C57. 140TM-2006 IEEE guide for the evalua- tion and reconditioning of liquid immersed power trans- formers [S]. 2007.
3Tang W H, Surgeon K, Wu Q H, et al. An evidential reasoning approach to transformer condition assessments [Jl. IEEE Transactions on Power Delivery, 2004, 19 (4): 1 696-1 703.
4Saaty T L. The analytic hierarchy process [ M ] Thomass Saaty USA, 1988.