National Grid (P6)
- Created by: caits
- Created on: 14-04-14 10:40
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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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