Question
Tue July 03, 2012 By:

What is active energy and apparant energy?

Expert Reply
Tue July 03, 2012

In alternating current circuits, energy storage elements such as  inductance and capacitance may result in periodic reversals of the direction of energy flow. The portion of power flow that, averaged over a complete cycle of the AC waveform, results in net transfer of energy in one direction is known as real power(also referred to as active power). That portion of power flow due to stored energy, that returns to the source in each cycle, is known as reactive power.

 
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