EWRB Electrician Theory Mock Exam 04

[@himanshupatel1507]

Answer -39
delta-star
Delta:
IL=8
Iph = 8/1.732=4.61
Transformer:
N1/N2=I2/I1
5/1=I2/4.61
I2=5*4.61 =23.05
STAR
Iph=IL =23.05

[@ITOElectrical]

Checked and Fixed! Thank you pointing out error. thanks

[@himanshupatel1507]

please check the answer of 39

[@ITOElectrical]

Checked and Fixed! Thank you pointing out error. thanks

[@himanshupatel1507]

Answer - 40, 40, 69.29, 23.09 is it right?

[@ITOElectrical]

Correct!Well done! It means that you already knew how to calculate transformer question. Thanks.