90 likes | 334 Views
EE 215 Electric Energy Systems Analysis Chapter 3: Transmission lines. Paul Hines, Ph.D. What is a Power Grid?. M. El- Sharkawi , Electric Energy: An Introduction. Chs . 3. Transmission Lines. Transmission lines. The PI model Parameters Type of conductor Number of conductors/phase
E N D
EE 215 Electric Energy Systems AnalysisChapter 3: Transmission lines Paul Hines, Ph.D.
What is a Power Grid? M. El-Sharkawi, Electric Energy: An Introduction
Transmission lines • The PI model • Parameters • Type of conductor • Number of conductors/phase • Position of phases • Location of neutral
Transposition • Coupling between phases and phase-to-ground depends on a variety of factors • To keep things balanced, we need to transpose the phases
Unbalanced transmission lines • “Positive sequence” • Voltage-current relationship (Linear algebra)