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OPPD The Wire Stories: Transmission & Distribution Basics

  • Video: The difference between types of power lines
  • Infographic: Anatomy of a power pole
  • Ice has weighty effect on power lines
  • What causes ‘circuit trips’?
  • OPPD’s Energy Control Center
  • Tree maintenance: Whose responsibility is it?
  • Air-flow spoilers
  • Padmount transformer
  • Energy management system connects substations to electrical grid
  • Why high-voltage power lines ‘hum’ in some weather conditions
  • Substations
  • Shield wire
  • Electric system circuit