The surge current generators generate standard impulse currents with waveform 8/20 μs according to IEC, EN, VDE. Pulse current output amplitude is controlled by preset charging voltage and can be adjusted up to the maximum value of the special type of generator. The generators are designed for testing electrical components, overvoltage protectors and electronic circuits. They possess an electronically regulated high-voltage power supply, which allows an excellent reproducibility of the pulse output amplitude.