Transformer Connection Under No-load And Short-circuit Events

摘要

The equivalent electric circuit of a transformer and a method permitting the calculation of the modes with a magnetizing current are given. Problems concerning the inrush current are examined in detail and recommendations for decreasing it are given. It is shown that the magnetizing current does not significantly influence the transformer's short-circuit ability. During short-circuit tests of the transformer, measures are taken to decrease the magnetic current.