Abstract—Transformer protection and safety is based on large number of tests. On the basis of these test results, vital decision on transformer diagnostic and condition monitoring is done. But some times it is not possible to conduct the tests on transformer in service because it may destructive in nature so, in order to perform these tests, scaled-down or prorated models of actual power transformers are used in experimental study. In this paper, different prorated models with their aging cycles have been studied.

Index Terms—Power transformers, prorated models,thermal models, aging temperature, aging time, oil insulation,paper insulation.

Y.R.Sood, Prof., EED, NIT Hamirpur, India (yrsood@gmail.com)
Piush Verma, Director, Rayat & Bahra College of Engg. & Bio Tech for Women, Kharar, Distt. Mohali -140104 ( Punjab), India(pverma19@yahoo.co.uk)

Cite: Jashan Deep Singh, Yog Raj Sood and Piush Verma, "Review of Different Prorated Models Which Detects the Effect of Accelerated Stresses on Power Transformer Insulation," International Journal of Computer and
Electrical Engineering vol. 2, no. 3, pp. 569-574, 2010.