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3-dimensional computation of transformer leakage fields and associated losses

1975; IEEE Magnetics Society; Volume: 11; Issue: 5 Linguagem: Inglês

10.1109/tmag.1975.1058855

1941-0069

M. Djurović, C.J. Carpenter,

Magnetic Properties and Applications

Numerical methods, based on a magnetic scalar potential function, have been used to compute three-dimensional leakage fields and leg-plate losses in large power transformers. Fast convergence is obtained. The currents induced in the leg-plate are calculated by a simple modification of the static scalar-potential formulation. This includes three-dimensional, flux perturbation, and plate edge effects. The results show that two-dimensional approximations are unsatisfactory.