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how we can select a transformer based on a particular load.
suppose we have 4 motors of rating 40 h.p , 50 h.p, 80 h.p
& 100 h.p. then what rating of transformer we can select.
urgent. pls reply

Answers were Sorted based on User's Feedback



how we can select a transformer based on a particular load. suppose we have 4 motors of rating 40 ..

Answer / mayank goel

40+50+80+100
=270HP
1 HP=746Watt
270HP=201.42KW
Power Factor@.7=287KVA
Loading on Transformer 85%=337KVA

So we can use 400KVA transformer for this motors is okey.

Is This Answer Correct ?    23 Yes 0 No

how we can select a transformer based on a particular load. suppose we have 4 motors of rating 40 ..

Answer / eng. ahmed esmail

total HP = 40 + 50+80+100=270HP
1HP=0.746KW
total Kw =201.42Kw
at 0.75 power factor
P= S *P.F
S=268.56 KVA
at 0.85 transformer loading
S=268.56/.85=315.95 KVA
so we will use 400 KVA transformer for this motor loads

Is This Answer Correct ?    12 Yes 2 No

how we can select a transformer based on a particular load. suppose we have 4 motors of rating 40 ..

Answer / rahul

=40+50+80+100
=270HP
1 HP=746Watt
270HP=201.42KW
So we can use 250KVA transformer for this motors.

Is This Answer Correct ?    18 Yes 10 No

how we can select a transformer based on a particular load. suppose we have 4 motors of rating 40 ..

Answer / ramesh behera

Here the g0hpiven motor values are
40HP,50HP,80HP,100HP
so total HP of motors are
40+50+80+100=270hp

1hp = 746watt
so 270*746=201420w
or 201.42kw

201.42*.85=251.744kva

Some power in hand so we should use 260kva single phase
transformer for these motor load

Is This Answer Correct ?    4 Yes 3 No

how we can select a transformer based on a particular load. suppose we have 4 motors of rating 40 ..

Answer / suber

approxmatle 300kva tfr futter add and the load so 333kva
the ans

Is This Answer Correct ?    4 Yes 11 No

how we can select a transformer based on a particular load. suppose we have 4 motors of rating 40 ..

Answer / jitesh

=40+50+80+100
=270kva
=362 kw
=270+(270*50%)
=400approx = 500kva X'mer

Is This Answer Correct ?    3 Yes 15 No

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