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Active Contributor

Join Date: Nov 2018
Posts: 13

KWH Loss Calculation

11/14/2018 12:54 PM

I want to calculate KWH loss of electrical distribution line .Is there any software with that i can do that easily?

ETAP/CYME's load flow doesn't show the KWH loss

Some people are saying i have calculate that loss form the load flow reasult. But no one avle to give me any idea how can i do that

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#1

Re: KWH loss calculation

11/14/2018 1:22 PM

For one thing, KWH is energy, not power. Energy = power x time. Probably what you want is power loss. Power = voltage x current x power factor. Calculate the power at the start and end and subtract. That's your power loss.

https://en.wikipedia.org/wiki/Electric_power_transmission#Losses

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Active Contributor

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#4
In reply to #1

Re: KWH loss calculation

11/14/2018 1:57 PM

If i divided this kwh loss by total purchase i will get % loss ....i don't know what loss u going to call it. We call it technical loss. I want to calculate it via etap because when the network is huge it become complex

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#2

Re: KWH loss calculation

11/14/2018 1:39 PM

Found this....

https://ac6la.com/tldetails1.html

I would study this first...

http://red.pe.org.pl/articles/2011/2/24.pdf

...also be aware, it changes....

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#3

Re: KWH loss calculation

11/14/2018 1:55 PM

Thank you

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#6
In reply to #3

Re: KWH loss calculation

11/14/2018 2:04 PM

The loss in a network is the power going in minus the sum of all the power being delivered to the loads. A pencil, paper and some arithmetic can be used to work it out once the measurements are to hand.

Stuff software!

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#5

Re: KWH loss calculation

11/14/2018 1:58 PM

The measurements needed are:

  • The voltage at one end of the line, called here V1
  • The voltage at the other end of the line, called here V2
  • The current flowing in the line, called here I
  • The power factor, here called P

The power loss in the line is (V1-V2)IP. A pencil and paper and some simple arithmetic can be used to do that.

The energy loss in the line is the power loss multiplied by the time that the line is passing current. A pencil and paper and some simple arithmetic can be used to do that. Conversion to <...KWH...>, an abbreviation that in the normal world is written kWh, follows by using an appropriate conversion factor. A pencil and paper and some simple arithmetic can be used to do that.

Stuff software!

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