Question

Plate values of a three-phase transformer are given below:
1600 kVA, 15 kV / 0,4 kV, 50 Hz, i₀ = 1.2%; u_kN= 6%, idle losses 2450 W, rated power copper losses 14500 W; D_y5 connected..

III) There is 75% load in the power factor with 0.85 inductance and 0.85 capacity. At what times of the day can capacity loading be seen? What solution should be applied to prevent voltage change?

IV) Draw the fastening group. How can this transformer be operated in parallel with the D_y11 connected transformer?

V) If this transformer is operated at 60 Hz, which sizes change how? Comment.

Answer 1

I have given the solution step by step. Please feel free to ask queries in comments. I'm available to address your queries. Please support with upvote

answered by: anonymous