Lecture-20 Characteristics of Transmission Line.pdf

power sytem lectures from Ankit goyal sir

6. Distortionless Line
•A Transmission Line is said to be distortion-less if the two time constants are
equal.
•This condition is same as the condition for a network to be independent of
frequency.

7. Flat Line or Infinite Line
•If the voltage magnitude is same at each and every point on the Transmission
Line but may have a different phase, it is termed as Flat Transmission Line.
•In a Transmission Line if there is no reflection at receiving end then the line is
said to be Infinite Line.

8. Lossless Transmission Line
•If there are no losses then the amplitude of wave remains same and does not
reduce as the wave propagates forward in a Transmission Line.
•Lossless line is also by default Distortion Less.

9. Surge Impedance
•Impedance offered by an apparatus for surges, travelling waves and transients.

10. Surge Impedance

11. Propagation Constant
•It represents changes in Voltage and Current waves during propagation.

12. Wavelength
•Wavelength is distance after which a wave repeats itself.

13. Lossless Line Parameters

14. Equivalent-pi Model

15. Equivalent-T Model

17. What is the condition for distortion-less transmission?

18. What is the condition for Infinite Transmission Line?

19. What is velocity of wave in a Transmission Line?