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NUS: Electricity Distribution

This course is designed like a field trip. Let’s travel together around the world, visiting solar farms, substations, and transformer rooms! Learn how to identify major components in electrical substations, learn about 3-phase electricity, and all about the ins and outs of electrical grids. We cover generation, transmission, and distribution. Welcome!

7 weeks
1–2 hours per week
Progress at your own speed
This course is archived

About this course

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In this class, learners will learn all about electricity infrastructure, including electricity generation, transmission, use and safety. The focus is on actual installations, so students can learn about electrical substations, 3-phase power distribution, typical power plant voltages, large transformers, as well as single-phase, split-phase, and 3-phase circuit breaker boxes and wiring setups found around the world. Learners will understand the importance of AC in an electricity grid, as well as grounding/earthing, pole transformer setups, as well as residual current/ground fault interrupt and safety setups and lightning protection.

At a glance

  • Institution: NUS
  • Subject: Engineering
  • Level: Intermediate
  • Prerequisites:

    The student should be familiar with the basics of electricity. For instance, the student should understand Ohm’s Law and the use of phasors in AC. Our previous courses Circuits for Beginners and AC & Switching Circuits may be helpful for learners who aren’t familiar with these concepts.

  • Language: English
  • Video Transcript: English
  • Associated skills:Voltage, Circuit Breakers, Power Distribution, Electric Power Distribution, Transformers (Electrical), Electrical Wiring, Electricity, Single-Phase Electric Power, Three-Phase, Electrical Power Transmission And Distribution

What you'll learn

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At the end of this MOOC, the learner will be able to discuss:

  • Wire gauge
  • Why AC is generally used for transmission instead of DC
  • Why three phase is used and how to calculate line and phase voltages
  • Circuit breakers, metering, fuses, lightning rods, residual current/GFCI devices, and grounding rods
  • Star and delta transformers and electrical substation layout
  • The electricity grid, and how it is generally designed
  • Split phase, single phase, 2-phase, and 3-phase consumer units/breaker boxes
  • How power is injected into the grid
  • Typical grid voltages and power plant capacities
  • Grid challenges with renewables, power output from solar farms

Week 1: Introduction (4 videos)

Week 2: Circuit Breakers and Residual Current Devices (7 videos)

Week 3: Polyphase power (6 videos)

Week 4: 3-phase transformers (3 videos)

Week 5: Split-phase power (3 videos)

Week 6: Electricity generation (5 videos)

Week 7: Electricity distribution (6 videos)

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