Buckling Strength Analysis of Large Power Transformer Windings Subjected to Electromagnetic Force Under Short Circuit

• Published in: IEEE transactions on power apparatus and systems Vol. PAS-99; no. 3; pp. 1288 - 1297
• Main Authors: Kojima, Hiroyuki, Miyata, Hiroshi, Shida, Shigeru, Okuyama, Ken'ichi
• Format: Journal Article
• Language: English
• Published: IEEE 01.05.1980
• Subjects: Cause effect analysis; Circuit testing; Electromagnetic analysis; Electromagnetic forces; Finite element methods; Plastics; Power transformer insulation; Power transformers; Steel; Windings

The inner winding of a power transformer is subjected to radial electromagnetic forces under short circuit conditions. When these forces exceed a certain limit, transformer windings buckle. This paper deals with the buckling strength analysis of transformer windings, including the evaluation of the...