in the circuit of the figure, we know:
1) the impedance of the A-B line: (26.6+j107) ohm
2) C-D line impedance: (4.5+j17.5) ohm
3) the nominal values of transformer 1: single-phase
transformers' bank (7.97 KV in Y, 230 kV in delta, 50 MVA, x= 8%,
r= 3%)
4) the nominal values of the transformer 2: three-phase
transformer (220 KV in Y, 88 kV in delta, 40 MVA, x= 8%, r= 3%)
5) the voltage (80kV) and power of the load (30 MVA, cos phi 0.8
inductive)
determine the voltage at the primary of transformer 1
In The Circuit Of The Figure We Know 1 The Impedance Of The A B Line 26 6 J107 Ohm 2 C D Line Impedance 4 5 J17 1 (7.43 KiB) Viewed 39 times
B T, ο D Α' Τ Α A Ος ΕΙΙ
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!