Title: Describe the electric transmission network or grid.
Course: Energy and Power (20101-36) > Section: Exploring Electric Transmission, Distribution, and Storage

Description should include

- a definition of transmission―the movement of electricity over long distances via high voltage transmission lines (69-765 kv) from a power station to substations
- identification of basic symbols
- components of the transmission network or grid, such as
  - power station
  - step-up transformers
  - switchyard
  - towers
  - lines (overhead and underground)
  - transmission substation
  - step-down transformers
  - breakers/fuses.

Process/Skill Questions:

- What is the role of each component in the transmission of electricity?
- What is the importance of step-up and step-down transformers in a grid/network?
- What are the pros and cons of overhead lines and underground lines?
- Why is transmission only in AC?