Optimum Capacity of the Ferroresonant Voltage Regulator

Although ferroresonant voltage regulators have been used for long time, it is not clear to obtain theoretically a desirable self capacity of this equipment for a given load capacity. This paper presents the design fundamentals based on the condition of minimum self capacity. In this analysis, a resonance characteristic of basic circuit is given by the piecewise linear approximation with two segmented regions. The performance of regulator is analyzied by the use of vector analysis, and a minimum value of self capacity and quantities required for its design are obtained by this analysis using the per unit system to understand perspectively the performance of regulator.