“…Considering the importance of the initial condition in the nonlinear systems, in [10], the impact of initial conditions on the initiation of the ferroresonance in the model of a 275 kV magnetic voltage transformer has been investigated. The transient response of a practical ferroresonant circuit has been studied in detail in [11]. The iterative approximation technique has been used for the determination of the transient response due to sudden application of a sinusoidal voltage.…”