Equipment for testing high voltage elements by conducting current pulses up to 100 kA (lightning), with a standard impulse that reaches the maximum value in 8 microseconds (ms) and decreases to 50% of this value in 20 ms with 80 kJ energy. The tested elements (self-valves, lightning, wind turbine blades, etc.) are connected in series with the generator. The test settings can be changed to make voltage measurements (up to 1600 kV/80 kJ, reaching maximum value at 1.2 ms and decreasing to 50% in 50 ms).