Multi-compartmental transformer and methods of maintenance therefor

Abstract

A compartmental transformer and a method maintenance therefore is provided. The transformer includes a first compartment housing first equipment electrically coupled to the high voltage side of the transformer and a second compartment housing second equipment electrically coupled with the low voltage side of the transformer. The transformer further includes a maintenance compartment, separate from the first and second compartments, for housing a plurality of maintenance devices used for servicing the transformer while the transformer is energized. The method includes co-locating and securing preventative maintenance devices in one secured compartment remote from a voltage at or above a level corresponding to the lower of the voltages of the primary or secondary sides of the transformer, maintaining the transformer in an energized state, opening the secured compartment, and performing preventative maintenance tasks on respective preventative maintenance devices while the transformer is maintained in the energized state.