National grid

• National grid - A network of cables and transformers that connects power stations to consumers
• Step-up transformers:

  • increases potential difference
  • decreases current
  • from power station to national grid
• Step-down transformers:

  • decrease potential difference
  • increase current
  • from national grid to consumer
• National grid

  A) Power station

  B) Step-up transformers

  C) Step-down transformers

  D) Consumers

  E) High voltage, Low current