Power Voltage Transformers - expanding beyond Station Service

Power Voltage Transformers are units which are primarily used for auxiliary supply of substations. The main objective of this paper is to demonstrate that they can be used for other purposes as well, namely for rural electrification by serving as the main transformer in a compact substation. To support such unconventional grid topology, transformer in-service reliability has to be unconditionally ensured and increased. The means of doing so by utilizing the open-core transformer concept are emphasized in this paper. By raising awareness that alternative uses for these transformers exist, a positive impact on the global availability of electrical energy in regions with low electrification rates can surely be enticed.