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Power quality refers to the power grid's ability to provide a consistent and reliable flow of clean power. The power flow should have a pure sinusoidal waveform and it should remain within specified voltage and frequency tolerances. But why is good power quality necessary?

In power systems, capacitor banks and active harmonic filter (AHF) are often used to improve power quality and efficiency. However, the interaction between these devices can sometimes lead to resonance, which can amplify harmonics and cause various power quality issues.

High Total Harmonic Distortion of Voltage (THDV) can be caused by various factors in an electrical system. Understanding these causes is crucial for identifying and implementing effective mitigation strategies

Using a power quality monitor to do preventive maintenance surveys and/or after-the-fact investigations requires the knowledge of Ohm’s and Kirchoff’s Laws. 

The effect of distribution feeder and substation capacitor banks on harmonic resonance and frequency response characteristics was studied for the system.

Power quality refers to the quality of AC power delivered to users through the public power grid. Ideally, the grid should provide power at a constant frequency, with a sinusoidal waveform and standard voltage. 

Harmonics are one of the most common power quality issues. Harmonics are unwanted frequencies that occur in an electrical system as a result of-linear loads.