Why DG set rating in KVA
Answers were Sorted based on User's Feedback
Answer / bijaleee baba
Any power generating devides are rated as VA and all power
consuming devices (Load) are rated in Watts. For Example :
Inverter / DG are rated in KVA and loads like Bulb / fan /
Electric ketel Iron etc are rated in Watts
Is This Answer Correct ? | 61 Yes | 14 No |
Answer / sara
KVA=VI*power factor
Efficiency of DG sets depends on the type of load used. the
manufacturer doesn't know what the type of load(inductive-
lagging-PF, capacitive-leading-PF) is to be used. so they
don't consider the power factor here, they take it as
unity.PF.
KVA=VI*(1) hence DG ratings are in KVA.
Is This Answer Correct ? | 49 Yes | 10 No |
Answer / farhan
A generator set is the combination of and engine to create
power and
an alternator to change that power into electricity.
The engine turns a shaft that in turn is connected to the
alternator
This turning of the alternator creates the electrical power.
As there are different types of power all over the world,
different generator sets are built to create different
forms of electrical power.
DG Sets are the Sources which provides power NOT CONSUMING
the power,so KVA determines how much amount of power could
be genertaed from a specific DG Set in short how much the
DG set is capable of creating Amperes at certain voltage
level
For Motors....they are the power consuming devices act as a
resistive/condutive/indudtive load where reactive power is
playing part.....
Is This Answer Correct ? | 27 Yes | 10 No |
Answer / santosh
it's not only for DG set, any electrical machine rating will
be in KVA! it's bcos, efficiency of a m/c depends on losses!
at the time manufacturing manufacturer doesn't know at what
powerfactor the machine may be used! AS LOSSES ( COPPER)
DEPENDS ON CURRENT IT TAKES! HENCE THE RATING IN KVA!
Is This Answer Correct ? | 28 Yes | 19 No |
Answer / katoch
its ok mr. santosh but why motors rating in KW as motor is
also a machine.
Is This Answer Correct ? | 19 Yes | 10 No |
Answer / shaik imtiaz ahamad
because it is independent of power factor as KW is dependent of PF.
Is This Answer Correct ? | 4 Yes | 0 No |
Answer / sahil chaudhary
in simple.. there are two types of losses (depending upon load) in dg.. copper losses and iron losses. copper losses is because of current And iron losses is because of voltage load on it.And in other words rating in kva of dg shows the proper capacity of dg with its all types of voltage and current load.
Is This Answer Correct ? | 5 Yes | 1 No |
Answer / nitin varia
Generaly Transformer & Generator ratings in KVA because we
use supply from this device
And Motor ratings in KW because we not use supply form this
device
Is This Answer Correct ? | 13 Yes | 12 No |
Answer / deepesh dhasmana
KVA rating is given to any equipment which supply electrical
energy, & KW is given to any moter which uses electrical
energy AS IT INPUT
Is This Answer Correct ? | 3 Yes | 3 No |
Answer / ananth r
Voltage loss is depend upon the cores (V) and copper losses dependent upon the winding (I). In order differentiate these two things this is not given in KW.
Is This Answer Correct ? | 0 Yes | 0 No |
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