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← 3.1 Generation, Transmission and Distribution of Electricity

Why transmission voltage is stepped up

Electrical Technology · Grade 10 · about 40 minutes

P = V I so higher V means lower I. Line loss is I squared R. Stepping up from about 11 kV to 132-400 kV is how Olkaria power reaches Nairobi without cooking the wires.

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Other lessons in this sub-strand

  1. Generation, transmission and distribution of electricity
  2. How a generator makes electricity
  3. Hydroelectric generation
  4. Geothermal generation at Olkaria
  5. Wind and solar generation
  6. Thermal, nuclear, biomass and tidal
  7. Kenya's generation mix: KenGen, IPPs and KPLC
  8. Why transmission voltage is stepped up
  9. Transmission network components
  10. Kenya transmission voltages
  11. The distribution network
  12. Drawing the 3-phase 4-wire circuit
  13. Modelling the national grid
  14. Why the national grid matters to Kenya