3‐D HYBRID ANALYTICALLY‐NUMERICAL COMPUTATION OF TANK LOSSES IN 3‐PHASE POWER TRANSFORMERS

3‐D Reluctance Network Method has proved as an effective, experimentally verified method of an evaluation of leakage fields and interactive design of screens. Though relative loss distribution is also easy to obtain the evaluation of absolute value — due to higher order of nonlinearity is much more difficult. In the paper analysis of this problem and simplified method of total loss calculation in tank wall, with semiempirical correction is given.