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MEGAVARS

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mjg204

mjg204

Mechanical
Jun 7, 2003
4
US
I posted this question in a different forum,but this is probably the forum where it belongs.Can someone give a basic summary on Megavars and what they do? Thanks in advance.
 
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VAR(Volt-Amperes Reactive)s, or kVARs(kiloVAR), or MVARs(MegaVAR) are used to describe 'reactive power', used to propagate a magnetic(inductive) or electric(capacitive) field in AC systems. Check out our company web page for a more detailed explanation.


Click the 'Power Factor/kW/kVA/kVAR Relationships' in the left column.
 
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Megavars are the magnetising component of the total power (MVA) which is required to maintain the magnetic fields of generators/motors/transformers in an electric system.It denotes the inductive(or capacitive) characteristics of any load in a system.
Thus mvar=((mva*mva)-(mw*mw))1/2
 
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The VAR or volt-ampere-reactive is an expression which is the component of the "apparent power", expressed in MVA, which is absorbed by reactive (inductive or capactive) elements of a aystem. In power systems most components are inductive and considered to absorb or consume reactive power (VARs). By definition capacitve components produce VARs. Generators can also produce VARs in a system by increasing the excitation current.

See
 
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