5200_L14 - 1[20 pts A 50-MVA delta-wye transformer is rated...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
EE 5200 - Lecture 14 Wed Sep 29, 2010 Topics for Today : Announcements Matlab - now we are ready to begin using it. Office hrs: 2:05-2:55pm M,W,F Office: EERC 614. Phone: 906.487.2857 Recommended problems from Ch.3, solutions posted Next: Transmission Line Parameters, Chapters 4,5,6 Synchronous Machines - Chapter 3. Basic internal structure of machines, cylindrical vs. salient Field windings Calculation with Xd and Xq. Calculation Example(s) Concepts behind SYNCH exercise set. S-S behavior - Xd ; Dynamic behavior - Xd’ Short-circuit behavior - Xd”; s-s, transient, subtransient
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
SYNCH Homework - Problem 1 Date Due: Friday Oct 1, 5pm
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1) [20 pts] A 50-MVA delta-wye transformer is rated 115-13.8-kV. It has standard phase shift of 30° (115-kV side leads 13.8-kV side by 30°). Its self-cooled short-circuit impedance is 0.005 + j0.045 p.u. on the base of the transformer. a) Convert the impedance to 100 MVA base for system calculations. b) Determine its per unit 2x2 admittance matrix values for i) pos and ii) neg sequence, being sure to include the effect of phase shift. c) Repeat b) for the situation where the transformer is to connect system buses having base voltages of 115 kV and 12.47-kV. Include phase shift and off-nominal turns ratio....
View Full Document

This note was uploaded on 10/20/2010 for the course ECE 5200 taught by Professor Bonk during the Fall '10 term at Michigan Technological University.

Page1 / 10

5200_L14 - 1[20 pts A 50-MVA delta-wye transformer is rated...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online