Design, Manufacturing and Testing of a Standard Current Transformer

This paper presents the design and manufacturing of a Current Transformer (CT). The results obtained from the manufactured transformer were used for protection and measurement systems. The transformer was designed based on a specification provided by the power utility Eskom (i.e. not available in the markets). The designed and manufactured type a Current transformer is of post hairpin and oil filled. The main components of the design includes; primary bar, secondary cores, insulator and steel tank. CTPEA software was used for simulation and CT Analyzer was used for testing.