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About cleggsan
Expertise
All technical areas of Electronics Engineering.

Experience
BSEE, MBA, Design, R&D, University Research.
Senior Life Member of IEEE. Life Fellow of AES.

Organizations
IEEE, Consumer Electronics Society, Audio Engineering Society.
Broad teaching experience; work experience mostly in consumer electronics and conversion from analog to digital technologies. Pioneer in digital audio at all levels.

You are here: Experts > Computing/Technology > Job Searching: Technical > Electrical Engineering > Reactive power and Voltage

Electrical Engineering - Reactive power and Voltage

Expert: cleggsan - 8/3/2009

Question
What is the relation between Reactive power and voltage, in a system? Why the system voltage suffers when a reactive load is added to the system?

Answer
Reactive load is when the impedance angle is other than zero (zero is for a purely resistive load). So what a reactive load means is the current goes higher which causes more losses in the transmission lines while delivering no more real power to the load. So, you can think of reactive power, depending on the power factor, as wasted current passing through the transmission lines, thus wasting the transmission and generating resources.

Look here:

http://en.wikipedia.org/wiki/AC_power
and here

http://www.npower.com/prod_consuma/groups/wcms_content/@wcms/@busi/documents/dig...

Hope this helps.

C

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