ABSTRACT
Transformers are electromagnetic energy transformation devices which operate on the principles of electromagnetic induction. The devices transform alternating current voltage from one value to another at a constant frequency. This work reviews the development of these functional devices using locally available materials in Nigeria. The design stages, material selection, manufacturing techniques, performance parameters such as efficiency, voltage regulation and power factor were also discussed. Some applications of the locally developed transformers were presented. The possibilities of producing larger power transformers for electrical power transmission and distribution systems using the similar approach for sustainable national development in Nigeria are also discussed.

KEYWORDS: Transformer, Production, Capacity Building, Sustainable Development.