3-Lesson_Notes_Lecture9_ee205 - EE 205 Dr. Chokri. Belhaj...

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

View Full Document Right Arrow Icon
EE 205 Dr. Chokri. Belhaj Ahmed - 1 - Electric Circuits II Balanced Three Phase Circuits Lecture # 09 Measuring Average Power in Balanced Three Phase Circuits
Background image of page 1

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

View Full DocumentRight Arrow Icon
EE 205 Dr. Chokri. Belhaj Ahmed - 2 - Summer of chapter 8 of the text book : ± The Characteristic equation for both parallel and series RLC circuits has the form: 22 0 20 ss αω + += where 1 2 RC α= for parallel circuit ± The roots of the characteristic equation are 1,2 0 s α =− ±
Background image of page 2
EE 205 Dr. Chokri. Belhaj Ahmed - 3 - ± The responses could be 1. Overdamped 2. Underdamped 3. Critically damped Depending on the 2 α and 2 0 ω reflects the effect of the dissipation element R 1. when 22 0 > (no oscillation) 2. when 0 < (oscillates about its final value) 3. when 0 = (on the verge of oscillation)
Background image of page 3

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

View Full DocumentRight Arrow Icon
EE 205 Dr. Chokri. Belhaj Ahmed - 4 - ± Natural Response 1. () 12 st s t xt Ae =+ ( ) 0 xA A = + ( ) 0 dx A A dt = + 2. () ( ) t dd BC o s t BS i n te α ωω ( ) 1 0 xB = ( ) 0 d B B αω =− +
Background image of page 4
EE 205 Dr. Chokri. Belhaj Ahmed - 5 - 3. () ( ) 12 t xt D
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
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

3-Lesson_Notes_Lecture9_ee205 - EE 205 Dr. Chokri. Belhaj...

This preview shows document pages 1 - 7. Sign up to view the full document.

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