Figure 3. Transformer failure beyond designed life span [18]

From

Analysis of Transformer Loadings and Failure Rate in Onitsha Electricity Distribution Network

Hachimenum N. Amadi, Fabian I. Izuegbunam

American Journal of Electrical and Electronic Engineering. 2016, 4(6), 157-163 doi:10.12691/ajeee-4-6-2