... AC automatic voltage regulatorFeature;Model SCR-500VA,SCR-1000VA,,SCR-1500VA SCR-2000VA,SCR-3000VA, SCR-5000VA SCR-8000VA,SCR-10000VA ... distortion Insulating resistance Normally more than 2MΩ single phase AC AVR auto voltage stabilizer SCR-2000VA, SCR-500VA,SCR-1500VA,SCR 3000VA