The document discusses five types of transformer models: 1) 1:1 ideal transformer, 2) 1:1 phase reverse ideal transformer, 3) 2:1 ideal transformer, 4) 1:2 ideal transformer, and 5) 1:2 center tap ideal transformer. It provides the parameter settings for each transformer type, including inductance, turns ratio, and series resistances for each winding. The parameters have default values for demonstration in the listed figures.