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Optimization design evaluation and IEC 60076 standard test for large oil type transformer

Arunrungrusmi Somchai, Poonthong Wittawat, Wongcharoen Saktanong, Mungkung Narong

Przegląd Elektrotechniczny

2021

R. 97, nr 4

13--19

The optimization of large distribution transformer is designed by using 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 limitation. Furthermore, either the design parameters or the limit of the specification of distribution transformers were varied to find the optimal cost. In this regard, the design procedure of distribution transformers at desire characteristics and minimized total cost were achieved. The transformer was tested according to the IEC standard. It satisfactorily passed both routine and type tests.

W artykule opisano optymalizację projektu dużego transformatora prze odpowiedni dobór uzwojeń, indukcji w rdzeniu, gęstości prądu, wymiarów, wagi a także kosztów. Metodę zastosowano do projektu transformatora 8000 kVA 3300/1905 V. Transformator zbadano zgodnie z normą IEC.