National Grid (P6)

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  • Created by: caits
  • Created on: 14-04-14 10:40

Transformers in a national grid:

Electricity is transmitted at high voltages so we reduce the current, meaning we reduce the heat loss.

Power stations ----> Step up transformer ----> Pylons ----> Step down transformer ----> consumers

Heat is proportional to current squared

Power is transmitted at high voltages to reduce heat loss. When…

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