A Ahmadi Fakher - Aborihan Bironi technical school Ghorveh-Hamedan
J Nosratian ahour - Elec. Eng. Department Shahed University Tehran-Iran

This Transformers are an extremely important element of electrical power system. In this paper, understanding frequency responses in relation to winding structures is developed by using experimental and simulation efforts and 19-section ladder network model is used to calculate frequency responses of a transformer based on state space approach. In this paper, self and mutual inductance of air core transformer is modeled as mathematical formula and this method is compared with experimental model.

Transformer, Transfer function, Frequency response Analysis, Genetic Algorithm, State