Optimization Design Evaluation and IEC 60076 Standard Test for Large Oil Type Transformer

Abstract. The optimization of a large distribution transformer is designed by using the area elimination technique to change dimensional variables such as
the number of turns in both sides of winding, induction flux density, electrical length, low current density and high voltage current density. To
determine the lowest objective function such as minimum cost, minimum height, minimum weight, or total cost design that matches the consumer's
specification, the combination of design technique and production technique was used in the real manufacturing process. This method was used for
the design of 8000 kVA 22000 – 3300/1905 V. oil type large distribution transformer. After the design and production in the manufacturing process,
the test results were found to be within guaranteed limitations. Furthermore, either the design parameters or the limit of the specification of distribution
transformers was varied to find the optimal cost. In this regard, the design procedure of distribution transformers at desired characteristics and
minimized total cost were achieved. The transformer was tested according to the IEC standard. It satisfactorily passed both routine and type tests.