CDYG series impulse test systems can be used to generate impulse voltages simulating lightning strokes and switching surges. The stage energy is 2.5 kJ~ 1620kJ. Max. Charging voltage is 100~ 7200kV. We can do impulse test to wide range of electrical apparatus, such as medium voltage and high voltage switchgears, power transformers, current transformers, insulation materials, insulators, generators, etc.