Friday 15 July 2016

AC FUNDAMENTALS - PART – 11 – ROLE OF CAPACITOR IN POWER FACTOR IMPROVEMENT

Capacitor draws a leading current and partly or completely neutralize the lagging reactive component of load and current. This raises the power factor of the load.
If a capacitor is connected in parallel with the load, then the lagging reactive power of the load will be partly neutralizes, thus improving the power factor of the load.
Using capacitors in a circuit changes the reactive power value whereas the active power remains same in magnitude.
Usually the value of capacitor is expressed in terms of farads but in power factor improvements capacitor value is provided in KVAR.

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