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Common Power Quality Problems: Voltage Fluctuations and Flicker

Nov 27,2024

by:Jiangsu Lafaelt Electric Co., Ltd.

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Common Power Quality Problems: Voltage Fluctuations and Flicker


Voltage Fluctuations refer to periodic or random changes in voltage amplitude, typically within 0.9 to 1.1 (p.u.), affecting the stability of electrical systems. These fluctuations can cause lighting instability, resulting in flicker.


Flicker is the human eye's sensitivity to light variations caused by voltage changes. Its severity depends on factors such as system voltage level, load size, and power supply capacity. To mitigate flicker, public power supply points are classified into levels with specific regulations on allowable voltage fluctuation values.
Ensuring stable voltage minimizes flicker and enhances power quality!



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