Article | REF: D4263 V1

Voltage quality - Fluctuations and flicker

Author: Roger OTT

Publication date: November 10, 2002

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2. Flicker measurement

2.1 Regular tension jerks

For the case of regular voltage variations in steps of equal depth, which gives the most penalizing flicker, the curve in figure 3 shows the tolerable amplitude of the steps as a function of the number of steps per minute. A rectangular variation corresponds to two steps (one step in one direction, followed by one step in the other).

Document [2] gives the correction factors for the various possible forms of jerk. For jolts whose voltage amplitude...

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Flicker measurement