Development of generator for voltage dips, short interruptions and voltage variations immunity test

This paper deals with the development of the generator for immunity test of voltage dips, short interruption and voltage variations, which occur widely in low-voltage mains and interfere with the electrical and electronic systems or equipment connected to the mains. The output voltage waveforms of the immunity test generator are full compliance with the GB/T 17626.11 and IEC 61000-4-11 standards. Experiments and preliminary tests toward typical DC regulated power supply have been done to testify the equipment´s efficiency and feasibility. The resulting waveforms show that the generator can work very well.