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Power System Analysis (EELE 4351)

Power System Analysis (EELE 4351). Chapter 4 Series Impedance of Transmission Lines. Electric Grid Animation. https:// www.youtube.com/watch?v=nbPmsBmo03Y. Transmission Lines Animation. https://www.youtube.com/watch?v=oJ0GRvFWjYs. Transmission Lines Animation.

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Power System Analysis (EELE 4351)

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  1. Power System Analysis(EELE 4351)

  2. Chapter 4 Series Impedance of Transmission Lines

  3. Electric GridAnimation https://www.youtube.com/watch?v=nbPmsBmo03Y

  4. Transmission LinesAnimation https://www.youtube.com/watch?v=oJ0GRvFWjYs

  5. Transmission LinesAnimation https://www.youtube.com/watch?v=R_Z-A9KZr58

  6. Transmission LinesLine Parameters

  7. Transmission LinesMagnetic and Electric Field

  8. Transmission LinesTypes of Conductors ACSR Conductors AAC all-aluminum conductors AAAC all-aluminum-alloy conductors ACSR aluminum conductor, steel-reinforced ACAR aluminum conductor, alloy-reinforced

  9. Transmission LineResistance

  10. Tabulated Resistance Values ACSR Conductors

  11. Example 4.1 Tables of electrical characteristics of all-aluminum Marigold stranded conductor list a dc resistance of 0.01558-Ω/1000 ft at 20oC and an ac resistance of 0.0956 Ω/mi at 50oC. The conductor has 61 strands and its size is 1113000 cmil. Verify the dc resistance and find the ratio of ac to dc resistance.

  12. Inductance of a ConductorDue to Internal Flux

  13. Flux Linkage Between Two PointsExternal to an Isolated Conductor

  14. Single-Phase 2-Wire Line Inductance

  15. Flux Linkages of 1-Conductor in Group

  16. Composite-Conductor Lines Inductance

  17. Example 4.2 One circuit of a single-phase transmission line is composed of three solid 0.25-cm radius wires. The return circuit is composed of two 0.5-cm radius wires. The arrangement of conductors is shown. Find the inductance due to the current in each side of the line and the inductance of the complete line in henries per meter (and in millihenries per mile)

  18. The Use of Tables

  19. Example 4.3 Find the inductive reactance per mile of a single-phase line operating at 60-Hz. The conductor is Partridge, and spacing is 20-ft between centers.

  20. Inductance of Three-Phase LinesEquilateral Spacing

  21. Inductance of Three-Phase LinesWith Unsymmetrical Spacing

  22. Example 4.4 A single-circuit three-phase line operated at 60-Hz is arranged as shown. The conductors are ACSR Drake. Find the inductive reactance per mile per phase considering a completely transposed line.

  23. Inductance of Three-Phase LinesWith Bundled Conductors

  24. Example 4.5 Each conductor of the bundled-conductor line shown is ACSR, 1272000-cmil Pheasant. Find the inductive reactance in ohms per kilometer (and per mile) per phase for d=45 cm. Also, find the per-unit series reactance of the line if its length is 160 km and the base is 100 MVA, 345 kV.

  25. End Of Chapter Four

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