hi every one noticed when we prepair to the 20 km under ground cable operation that the kwh meter record covsumption on no load state and zero on kvarh meter ??? why????

A Rudrendra

• Jul 15th, 2016

We know that for every cable there will have a small amount of resistance. So, When we draw the equivalent circuit for this case it will be purely resistance connected across supply (as there is no lo...

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In meters with electromechanical " rotating disk " What is the difference between the meter of reactive powerVARHM and the meter of active power WHM.?? Working theory and internal structure.?? Thanks

sanat kumar patro

• Nov 5th, 2014

Active power is that power which is converted to other form of energy like heat,mechanical etc.But reactive power is that power which doesn't take place in energy conversion but is used in magnetization of winding for producing magnetic fields.

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