I have calculated load for an office building which is 1200 KW as all the lo

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.

Question Posted / engr. rasheed

3 Answers
5215 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

I have calculated load for an office building which is 1200 KW as all the load is single phase t..

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

I have calculated load for an office building which is 1200 KW as all the load is single phase t..

Answer / niraj

Answer #1 does not take into account the power factor.

Is This Answer Correct ?

0 Yes

0 No

I have calculated load for an office building which is 1200 KW as all the load is single phase t..

Answer / mahendra

KVA=KW/cosφ
KVA= 1200/.9
KVA=1333KVA @80%
KVA= 1500KVA

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

Why lightning arrester blast in rainy day?

1 Answers Eco Cement, Mahaveer, MBDL,

State the formula for overall efficiency of thermal power station

0 Answers

what type of transformer used in soft ware parks its distribution or power transformer. like 1800 kva

3 Answers

What meant by XLPE cable

3 Answers

what is PI value and its significance for insulation testing?

3 Answers

Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.

0 Answers

plz send me the placement interview question and answers of whizchip(technical and apttitude)..i have an interview in next.

0 Answers

I have 1500KVA transformer ,How much Maximum KW Load is allowed?

15 Answers GKC Projects Limited GKCPL,

does any one know where we can purchase insulation oil for high voltage oil filled cables

0 Answers

what is the meaning of the symbol << >> put in transformer drawing

0 Answers TATA,

What is the difference between DOL starter and star delta starter

0 Answers

We order Dyn 5 distribution transformer to a company. What arrives is Dyn 11. Is it ok to use this transformer. It will be installed alone.

3 Answers G&S Construction,

For more Electrical Engineering Interview Questions Click Here