Voltage fluctuations and flicker
Jürgen Schlabbach, D. Blume, T. Stephanblome · Institution of Engineering and Technology eBooks · 2001
Changes in the amplitude of a voltage for a period which is longer than the period of the voltage under consideration is designated a voltage fluctuation. Such voltage fluctuations can occur once, several times, randomly or regularly. The voltage fluctuation in the form of a jump, a ramp or any quasi course is described by the value of the relative voltage change d. The chapter shows some forms of voltage fluctuations. If voltage fluctuations occur with the frequency of approximately 0.005 Hz to 35 Hz, this generally leads, according to the amplitude, to a light flicker which can be perceived by the human eye.