In simple terms, voltage fluctuation is a continuous change in the voltage when devices or appliances that require a higher load are extensively used. Extreme cases of voltage fluctuation can cause heavy damage to your life and property.
What causes fluctuating electrical voltage?
Poor wiring, corroded and loose connections can cause voltage fluctuations. In extreme cases, a loose connection can cause electric shocks from metal appliances and surfaces in your home. This can often be identified by the flickering of lights.
What is voltage fluctuation?
Voltage fluctuations are systemic variations of the voltage envelope or random voltage changes, the magnitude of which does not normally exceed specified voltage ranges (e.g., 0.9 to 1.1 pu as defined by ANSI C84.