I have calculated load for an office building which is 1200
KW
as all the load is single phase therefore its 1200 kw single
phase. Now i have to design Transformer and Generator for
this load Please kindly give me exact answer that how much
capacity of Three Phase Transformer and Three Phase
Generator is required for this load.
Answers were Sorted based on User's Feedback
Answer / mayadhar81
1200 kw = 1200*1000 watt
that means 1200000 watt ok
In single Phase for example 1000 watt load,supply 230
volts,current is watts/volts
answer is 1000/230=4.34 amps ok
in 1200000 watts =4.34*1200=5208 amps ok
Per phase current=5208/3=1736 amp
three phase transformer/ generator=1736/1.392=1247 kva dg
or transformer is used for full load.
Then you have used 1500 kva dg or transformer
and put it 80% load.
Is This Answer Correct ? | 7 Yes | 2 No |
Answer / niraj
Answer #1 does not take into account the power factor.
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / mahendra
KVA=KW/cosφ
KVA= 1200/.9
KVA=1333KVA @80%
KVA= 1500KVA
Is This Answer Correct ? | 0 Yes | 0 No |
how to select the rating of neutral ct with reference to transformer secondary current(in power transformer,stepdown tansformer,for example2000kva,11kv/415volt
Can anyone explain the power flow in flouresent lamps (tube lights) .What are the functions of Starter & choke used there?
What are the advantages and disadvantages of the ac motors?
How to reverse the direction of a DC motor ? By reversing the Armature wires or by reversing the field wires
Whether capacitor loads can be connected for testing a diesel engine at its full load capacity? Is there any limitation of capacotir load? Which is the best load for testing DG sets?
Capacitor is load free component but why ampere meter shows current when capacitor bank breaker close?
what is skin effect?
how ceiling fan worked?
What happened when voltage will half value of current ...
give single line diagram of D.G distribution form alternator to main L.T panel?
why the motor is rated as kw& transformer as kva
A 25MVA 3300/400V T/F is termed as per winding is …… a) primary 3300V & Secondary 400V b) primary 3300V & low voltage winding 400V c) High voltage winding 3300V & Secondary 400V d) High voltage winding 3300V & low voltage winding 400V
4 Answers Engineers India Limited,