Provides repeatable, accurate measurement of breakdown voltage of insulating oils used in electrical equipment./Versatile, lightweight and rugged./Designed for both field and laboratory use./Three rates of rise, 500V/2000V/3000V per second./Rate of rise selector switch with Stop/Dwell positions./Arc detection with automatic shutdown./'Zero Start' and test chamber interlock provision,/Window panel for test observation./60 kV & 100 kV test cells for ASTM & IEC standards