1 / 10

Electrical Power Distribution in America

Electrical Power Distribution in America. 49.9 % Coal. 20.3% Natural Gas. 6% Hydro Electric. 20.4% Nuclear. 3.4% Other. http://www.eia.doe.gov/emeu/mer/pdf/pages/sec7_4.pdf. Power Plant Generation. Turbines Output 11KV to 22KV. Generated Power Distribution.

albert
Download Presentation

Electrical Power Distribution in America

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Electrical Power Distribution in America

  2. 49.9 % Coal 20.3% Natural Gas 6% Hydro Electric 20.4% Nuclear 3.4% Other http://www.eia.doe.gov/emeu/mer/pdf/pages/sec7_4.pdf

  3. Power Plant Generation • Turbines • Output 11KV to 22KV

  4. Generated Power Distribution • Power Plant Turbine Output Voltage Transformed to Higher Voltage • 155,000 volts to 765,000 Volts • Higher voltage, lower current = less line loss

  5. End User • High Distribution Voltage Transformed Down • Common Commercial Substation Voltage • 12,000 Volts • Residential • 7,200 Volts

  6. Commercial End User • Transformed From 12,000 Volts, 3 Phase • 480/277 Volts Three Phase • 208/120 Volts Three Phase

  7. 480/277 Volt Rules of Thumb • Phase Conductors Marked • Brown, Orange, Yellow • Neutral – White • Ground – Green • Voltage reading between phases(Brown to Orange, Yellow to Orange, or Yellow to Brown) • 480 volts • Voltage reading phase to neutral(Brown to White, Orange to White, or Yellow to White) • 277 volts

  8. 208/120 Volt Rules of Thumb • Phase Conductors Marked • Black, Red, Blue • White - Neutral • Green – Ground • Voltage Reading Between Phases (Black to Red, or Red to Blue or Black to Blue) • 208 Volts • Voltage Reading Phase to Neutral(Black to White, Red to White, Blue to White) • 120 Volts

  9. Residential End User • Transformed From 7,200 Volts • 240/120 Volts Single Phase

  10. Residential Single Phase • 3 Wire’s coming into your home • Black and Red Wires are Hot • 1 White is Neutral • Voltage between the two hot wires(Black to Red) • 240 volts • Voltage between hot and neutral(Either the Black to White or the Red to White) • 120 volts

More Related