{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

lecture3 - EE 740 Professor Ali Keyhani Lecture#3 Ideal...

Info icon This preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
EE 740 Professor Ali Keyhani Lecture #3 Ideal Transformers
Image of page 1

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

View Full Document Right Arrow Icon
I 1 I 2 I 1 I 2 V 1 V 2 V 1 V 2 N 1 N 2 IT + + - - I 1 I 2 Z 2 V 1 V 2 N 1 N 2 The ideal transformer: V 1 /N 1 = V 2 /N 2 N 1 I 1 = N 2 I 2 S 1 = V 1 I 1 * S 2 = V 2 I 2 * S 1 = S 2 a = V 1 /V 2 = N 1 /N 2 V 1 = aV 2 I 1 = I 2 /a Z 2 = V 2 /I 2 Z 2 ’ = V 1 /I 1 = (aV 2 ) / (I 2 /a) = a 2 Z 2 Real transformer: I 2 I 1 N 2 N 1 R 1 jX 1 R 2 jX 2 Load V 1 V 2 I c R c jX m I m V 1 I 2 /a
Image of page 2
N 2 N 1 I 1 I 2 IT V 1 V 2 + - + - V 2 V 1 I 2 I 1 V 2 V 1 N 2 N 1 a = = V 1 I 1 I 2 R 1 jX 1 I c R c jX m R 2 jX 2 Load I m N 1 N 2 I 1 R 1 jX 1 I c R c jX m R 2 jX 2 I m N 1 N 2 V 1 I 2 Load I 2 /a R 2 ’ = a 2 R 2 X 2 ’ = a 2 X 2
Image of page 3

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

View Full Document Right Arrow Icon
I 1 I 2 I 1 I 2 V 1 V 2 V 1 V 2 N 1 N 2 IT + + - - I 2 I 1 N 2 N 1 R 1 jX 1 R 2 jX 2 Load V 1 V 2 I c R c jX m I m V 1 I 2 /a N 2 N 1 V 2 V 1 a = = I 1 R 1 jX 1 I c R c jX m R 2 jX 2 I m N 1 N 2 V 1 I 2 Load R 2 & X 2 are referred to winding 1
Image of page 4
I 1 R eq jX eq I 2 V 1 N 1 N 2 Load R eq = R 1 + R 2 X eq = X 1 + X 2 Neglecting excitation current N 1 N 2 I 2 jX eq I 1 V 1 Load V 2 V 2
Image of page 5

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

View Full Document Right Arrow Icon
Determination of Req and Xeq from short-circuit test.
Image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern