In the developing countries, where there is a gap between demand and supply, measures are being taken for reduction in electricity consumptions as a part of their demand side management. As per research in Trifunovic et al. (2009), it is estimated that the energy reduction up to 27% in residential and 30% in commercial sector could be achieved by switching towards energy efficient technologies. This has resulted in the growth of power electronic based energy saving devices. The tremendous increment in unit electricity charges is also one of the reasons for the penetration of such devices in existing power system. However, the widespread use of these devices could have some harmful effect sonpower