Product Description 450kV 20kJ High Voltage Impulse Voltage Test System for Lighting Test Impulse Voltage Test System is used for the full-wave and cut wave tests of standard lightning impulse voltages for power transformers transformers reactors lightning rods switches bushings insulators and other test products with voltage classes of 35kV and below. Product Characteristics Rated parameter value Rated nominal voltage ±450kV Rated voltage ±150kV Rated energy 20kJ Total impulse capacitance 0.25F The total series 3 series Rated power capacity1F