![]() Harmonic Distortion – A departure from the ideal electrical signal on a given power source.Frequency Variation – Not a common problem when power supplies are stable, but it can occur when using generators and power frequency fluctuates more than desired.Frequency Noise – Also known as line noise, frequency noise can disrupt or degrade the performance of a circuit by injecting abnormalities into the system.Over Voltage – Occurs when incoming voltage is higher than normal and lasts longer than a surge but not high enough to be classified as a surge or spike.Voltage Sags – A sag is also a type of under voltage, but, unlike a brownout, it’s sudden and brief. ![]() In emergency conditions, power companies may lower the voltage of your electricity to reduce strained resources and avoid a total blackout.
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