Transcription of SECTION 9: ELECTRICAL POWER DISTRIBUTION
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SECTION 9: ELECTRICAL POWER DISTRIBUTION
ESE 470 Energy DISTRIBUTION SystemsSECTION 9: ELECTRICAL POWER DISTRIBUTIONK. WebbESE 470 Introduction2K. WebbESE 4703 The ELECTRICAL Grid Three main components to the ELECTRICAL grid Generation ESE 450 Transmission Transmission Subtransmission DISTRIBUTION Primary DISTRIBUTION Secondary DISTRIBUTION Different voltage levels at each Connected by transformersK. WebbESE 4704 Transmission Network Provides bulk powerfrom generators to the grid Interconnection point between separate utilities or separate generators POWER bought and sold at this level High voltage for low loss, long-distance transmission kV Generator step up transformers at POWER plant High POWER MVAper three-phase circuit Transmission network terminates at bulk-poweror transmission substationsK.
Pumped hydro – likely little new development Flywheel Super capacitors Superconducting magnetic energy storage (SMES) Fixed energy storage Near solar/wind farms Distribution substations Mobile energy storage E.g., electric vehicles Utilities may have some control over and access to the energy stored
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