Answer / srinivasa rao talasila

Primary current=2500000/1.732*33000
=43.74A
Secondary current is =2500000/1.732*433
=3333A

Answer / pillay

sec 433volts of a 3 phase 2500 KVA TXformer will be
2500,000 / 1.72 / 433 = 3356 amps.

Answer / raj

input power= output power => transformer do's.

depends on ur load they will design.

Answer / gopal

HT CURRENT

I=LOAD/VOLTAGE
I=2500X1000/33*1000=75.75A

LT CURRENT

I=LOAD/1.732*433
I=2500*1000/1.732*433=3333A

OR USE SIMPLE FORMULA
1=LOAD X 1.4

Answer / l rc reddy

ht capacitors starting time line current load&unload

Answer / gnanendra

Hey.. It is very important to mention whether it is 1-phase or 3-phase.. See any text book.. If rating given means in that it will be definitely mentioned..

Answer / s bharath

p=1.732*v*i*0.8
2500=1.732*433*i*0.8
i=2500*1000/1.732*433*0.8
i=4.16kA

Answer / kaami

power in = power out
v*i = v*i=2500kVA

on input side
33kv*i=2500kv
i=2500/33=75.75amps

on output side
v*i=2500kva
433v*i=2500Kva
i=2500/433=5.7ka
so it is designed for 5.7KA on secondary side

Answer / rafeek

p=3^1/3*vicos$
=3^1/3*415*i*0.8
p = 575i
p=250*0.8=200kw
200*1000=575i
i=347.82
i=347.82*1.2=417.39
i-~=400amps

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