Kva reduction

Quote Ando "If I install power factor correction on an Industrial site it will reduce the Kva Demand but not the Kwh consumed."

Yes

Quote Anso "My undertanding is that electrcity is generated in Kva. By reducting the Kva on site, will this reduce the energy required to power this site?"

No. This is answered above.

We have already been through this before. You asked the same question below.

http://cr4.globalspec.com/thread/48750/CO2-emission-savings-from-PFC

cheers

PF correction might save a tiny amount of CO₂ emissions, just enough to keep such a claim from being false. Thus it is an excellent candidate for hyping as "green," or for creating borderline scams.

PF correction has its proper and economically justifiable place, but this might not be it.

I too thought the question sounded familiar.

"In vino veritas; in cervisia carmen; in aqua E. coli."

In wine is truth; in beer is song; in water are bacteria. Did I get that right?

Yes! (Adapted from the slogan of a microbrewery som friends owned.)

In vino veritas; in cervisia carmen; in aqua E. coli.

!!! In wine is thruth, in beer is songs, and in water ... bacterias ?

:-) Great phrase !!

The power trangle should be the basis for ur understading. KVA is a vectorial summation of KW and KVAR. By installing a cap bank, u are reducing the size of the KVAR which has a dual effect of reducing the KVA and Phase Angle. By reducing ur phase angle ur improving ur pf. The KW is at all time ur reference total none reactive load power when unity pf is attained. All inductive loads are rated in KVA for the presence of the real (true) power (KW) and the reactive power (KVAR). KW remains what u have as ur true power and is not affected by introducing a cap bank (ref. power trangle)

A clamp ammeter on load wire will show apractical view of the important of ur cap equipment. It relieves the generator and reduces the maximun demand charges.

Kamah D.

Abuja Nigeria

Thanks for all the relevant information suplied.

I have a much clearer understanding now

cheers

If your pf is low,it means u have large reactive power kvar,which need to be reduced by correcting the power factor.

Note that if pf is corrected, the value of kva is reduced accordingly.The current drawn is reduce,as such the energy consumed is also reduced.

Patrick Whowha

Pf correction will reduce the energy consumed by the site loads.It will not reduce the energy required to power the site,except when you did not meet the required kva to power the site loads initially.

Patrick Whowha

Quote Pat "Pf correction will reduce the energy consumed by the site loads.It will not reduce the energy required to power the site,except when you did not meet the required kva to power the site loads initially."

Please explain how the improvement in PF reduces the energy consumed by the site loads. I would think that if you reduce the load energy requirements, you would reduce the site energy requirements.