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Modeling, Analysis and Estimation of Three Phase Unbalanced Power Network

Modeling, Analysis and Estimation of Three Phase Unbalanced Power Network banner
Preview this course
Self-paced Advanced

Modeling, Analysis and Estimation of Three Phase Unbalanced Power Network

3(115)
149 views
FREE
802 min
Anytime
English
149 views
Engineering Academy
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Why enroll

Participants join this course to gain practical knowledge of unbalanced power system analysis, which is essential for modern grids with electric vehicles and railways. It helps students and engineers move beyond ideal balanced assumptions and prepare for real-world power system challenges.

Is this course for you?

You should take this if

  • You work in Energy & Utilities
  • You're a Electrical Engineering professional
  • You have 3+ years of hands-on experience in this field
  • You want to build skills in Engineering & Design, Project Management

You should skip if

  • You're new to this field with no prior experience
  • You need a different specialisation outside Electrical Engineering
  • You need live interaction with an instructor

Course details

This course focuses on understanding and analyzing modern power systems where loads are no longer perfectly balanced. Traditionally, transmission networks were studied assuming balanced three-phase loads, but this assumption is becoming inaccurate due to electric railways, electric vehicles, and other power-electronic based loads. The course introduces the fundamentals of unbalanced three-phase power systems in a clear and practical way. Students will learn how to model transmission and distribution networks under unbalanced conditions. Different types of unbalanced loads and their impact on voltages, currents, and power flow will be explained. The course covers analysis techniques suitable for real-world unbalanced networks. Quasi-steady state behavior of unbalanced systems will be discussed with practical examples. Methods for estimating system states under unbalanced conditions will be introduced. Emphasis is given to realistic power system operation rather than ideal assumptions. By the end of the course, learners will be able to analyze and understand modern unbalanced power networks confidently.

Source: IIT Roorkee July 2018 [Youtube Channel]

Course suitable for

Key topics covered

  • Introduction

  • Carson’s Line

  • Three-phase Transmission Line 01

  • Three-phase Transmission Line 02

  • Transposition of Transmission Line

  • Sequence impedance of Transmission Line

  • Impedance of Transmission Line

  • Capacitance of Transmission Line

Course content

The course is readily available, allowing learners to start and complete it at their own pace.

25 lectures13 hr 22 min
  1. Promo Video for Modeling, Analysis and Estimation of Three Phase Unbalanced Power Network
    9 min
  2. Introduction
    30 min
  3. Carson’s Line
    30 min
  4. Carson’s Line cont.…
    31 min
  5. Three-phase Transmission Line 01
    29 min
  6. Three-phase Transmission Line 02
    30 min
  7. Three-phase Transmission Line cont
    33 min
  8. Three-phase Transmission Line cont.…
    35 min
  9. Three-phase Transmission Line cont.…I
    29 min
  10. Transposition of Transmission Line
    45 min
  11. Transposition of Transmission Line cont.
    29 min
  12. Sequence impedance of Transmission Line
    39 min
  13. Sequence impedance of Transmission Line cont.
    29 min
  14. Impedance of Transmission Line
    31 min
  15. Impedance of Transmission Line cont.
    31 min
  16. Impedance of Transmission Line cont...
    37 min
  17. Impedance of Transmission Line cont....
    35 min
  18. Impedance of Transmission Line cont......
    35 min
  19. Impedance of Transmission Line cont........
    35 min
  20. Impedance of Transmission Line cont..........
    35 min
  21. Impedance of Transmission Line cont.............
    32 min
  22. Capacitance of Transmission Line
    34 min
  23. Capacitance of Transmission Line cont...
    34 min
  24. Capacitance of Transmission Line cont....
    30 min
  25. Capacitance of Transmission Line cont......
    35 min

Opportunities that await you!

Skills & tools you'll gain

Engineering & DesignProject ManagementResearch & Developmnet

Career opportunities

Why people choose EveryEng

Industry-aligned courses, expert training, hands-on learning, recognized certifications, and job opportunities-all in a flexible and supportive environment.

What learners say about this course

Boora Mahesh
Boora Mahesh civil engineer
Mar 14, 2026

drtudfjygfygughihj

Engineering Academy
Engineering Academy Engineer
May 3, 2026

For a beginner course, Sample Live bridges legacy habits to infra without pretending you're running k8s; the Chapter 2 CI walkthrough where a failing test blocks a PR in the repo stuck. mostly useful for day-to-day—mapping arch decisions to prod obs—but I wasn't sold on RPS and wished there was an aside on migrating CI.

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Davey Enyia
May 3, 2026

The ramp from symbols to actual circuits didn't whiplash; concepts stacked in a way a beginner can keep in cache. Chapter 3’s Ohm’s Law bench demo stuck, especially the moment the instructor calls out the 9.6V sag on the multimeter after adding a second resistor, not just the formula. Framing labs like small PRs helped: wire it, test, note failure modes, then iterate, which maps to how things break in prod even if the domain’s different. Some bits were mostly fine but rushed; the AC section and power ratings felt thin, and I wasn't sold on skipping breaker safety beyond a slide. It's clean enough to run between meetings, though I've seen clearer obs on why mistakes happen when RPS goes up—one aside tying heat to failure would’ve helped. next pass, I’ll probably be sharper about gaps because this set a baseline.

Oleh Zkhr
Oleh Zkhr
May 3, 2026

Straightforward take on the hard parts; it skips the fluff and gets to the math without posturing. The modal analysis chapter where he runs a 2‑DOF mass‑spring‑damper from EOM to FRF, then contrasts damping ratios with a quick MATLAB plot, stuck with me. Useful for team alignment on arch reviews; I've already pointed juniors to the damping assumptions before PRs tied to vib limits and test obs. Wasn't sold on the brief rotor dynamics aside for turbomachinery—wished there was more on lab correlation—but my notes ended up better than most bookmarks.

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Questions and Answers

A: Pick the wrong path and you’ll pass a study that collapses in test, burning a day you don’t have. Phase-domain backward/forward sweep tolerates missing angles and unbalance without forcing symmetry that isn’t there. The other choices quietly inject balance or typical data, and that 3% error doesn’t disappear — it moves.

A: Miss this and you’ll chase the wrong root cause while insulation quietly ages out. A neutral current alarm watches current, not phase-to-phase voltage stress. It can scream with harmonics or bad joints, but it stays silent while voltage unbalance cooks phase insulation.

A: Get this wrong and you’ll recalibrate sensors while hardware keeps overheating. Negative sequence currents explain real thermal rise and loss increase together. The other ideas explain numbers on a screen or different current paths, not metal getting hot.

A: Do this out of order and you’ll sign off data that can’t be reproduced, killing the schedule. Correct VT ratios and phase rotation come before any voltage assessment, and only loaded measurements show unbalance. The other paths either skip polarity context or hide the very effect you’re chasing.