HV DC Generator is used to test the surge arresters, fuses, cables, and other insulation materials. This generator outputs DC at power frequency of 50Hz or 60Hz. It is energy efficient, durable, offers low rise in temperature and ensures longer life. There is a choice for automatic or manual selection of controls and the polarity changes automatically. It can stabilize a network against disturbances because of rapid changes in power. This also allows an exchange of power between incompatible networks.