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OUTCOME
By the end of the lesson you will be able to apply your understanding of electricity and electrical generation to describe and analyse an a power transmission system.
Transformers enable voltage to be stepped up and stepped down. In a transmission system, transformers enable the power losses to be minimised by greatly increasing transmission voltages and thus decreasing transmission current and P = I2R
Electricity Distribution System parts: Origin Energy
RMS & Vp & Vpp voltages - First few paragraphs
LEARNING TASKS
Explain
Use the Rules V = IR and P = VI to show
Ploss = I2R
Why use RMS instead of Vp or Vpp?
Explore and Elaborate
Excel: Power loss in transmission
Evaluate
Try Qs 8 - 11
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