3-phase transformer

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dan_man555

Joined Sep 1, 2010
18
What are the available line currents on the primary (HV) and secondary (LV) sides of a 2,000kVA, 3 phase 11,000V/400V transformer?

I think i got this one, but just want to be sure



a=v1/v2

a = 11000/400
=27.5


S1= √3 V1 I1


2,000,000VA= √3 ×11000 × I1


Iprimary= 104.97A
a=I2/I1


27.5=I2/104.97


Isecondary=2886.75A
 
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