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rm.swaminathan
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Join Date: Jul 2009
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full load current calculation

07/14/2009 12:34 PM

Hi All,

How to calculate the full load current of DG?

Example:15kva DG set - What is the full load current? and how to find this?

pl help me.....

by

swaminathan
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PWSlack
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#1

Re: full load current calculation

07/15/2009 3:13 AM

What is the voltage of the generator?

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rm.swaminathan
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#3
In reply to #1

Re: full load current calculation

07/15/2009 11:57 PM

3 phase 440 volts
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saurabh singh
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#15
In reply to #1

Re: full load current calculation

07/10/2011 1:24 AM

1 phase
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jack of all trades
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#2

Re: full load current calculation

07/15/2009 11:13 PM

It is clearly stated in the manual and on the nameplate affixed to said diesel generator set.

If you don't have the manual (and cannot find the nameplate) try the manufacturer's website.

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saurabh singh
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#16
In reply to #2

Re: full load current calculation

07/10/2011 1:26 AM

no
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rm.swaminathan
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#4

Re: full load current calculation

07/15/2009 11:58 PM

send me also the general calculation.
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PWSlack
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#5
In reply to #4

Re: full load current calculation

07/16/2009 3:19 AM

OK. What is 15kVA divided by 440V?

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rm.swaminathan
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#6
In reply to #5

Re: full load current calculation

07/16/2009 6:01 AM

(15*1000)/440 = 34.09
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PWSlack
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#7
In reply to #6

Re: full load current calculation

07/17/2009 3:27 AM

34.09 of what units?

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Anonymous Poster
#8
In reply to #7

Re: full load current calculation

07/17/2009 4:15 AM

i think 34.09 Amps.

Is it correct?
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rm.swaminathan
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#9
In reply to #7

Re: full load current calculation

07/18/2009 3:49 AM

Amps. Am i right?
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rm.swaminathan
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#10
In reply to #7

Re: full load current calculation

07/23/2009 4:53 AM

the unit is amps.

correct?
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jack of all trades
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#11
In reply to #10

Re: full load current calculation

07/23/2009 3:05 PM

Yes.

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Alisai
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#12

Re: full load current calculation

08/17/2009 6:59 AM

KVA=1.732x Line Volt x Line Current X Cos Phi

15=1.732X400xIx0.8

I= 15000/1.732x400x0.8

=26 Amps
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Anonymous Poster
#13

Re: full load current calculation

09/23/2009 5:39 PM

well I think you need to take some course on basic electricity, first you need to know the ohm's law and apply the formula.

I = VA/E, for a one phase system

I= VA/(!.73X VXPF) three phase system.

I = Ampere; VA = Volt-Ampere; V= Volt; PF= Power Factor (0.8 Typically DG)

I hope this help you
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Anonymous Poster
#14

Re: full load current calculation

06/06/2010 2:35 AM

if it is three phase DG set

p = v x i x 0.8 x 1.732

V = voltage, 415 Volt

I = Current

0.8 = Power factor

it means that

p = 15 * 0.8 = 12 KWatts

12 *1000 = 415 x i x 0.8x 1.732 = 21 Amps ( full load)

= 21*80/100 = 16.8 Amps
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Users who posted comments:

Alisai (1); Anonymous Poster (3); jack of all trades (2); PWSlack (3); rm.swaminathan (5); saurabh singh (2)

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