SECTION 9: ELECTRICAL POWER DISTRIBUTION
ESE 470 Energy DISTRIBUTION SystemsSECTION 9: ELECTRICAL POWER DISTRIBUTIONK. WebbESE 470Introduction2K. WebbESE 4703The 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 4704Transmission 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.
38 Features of the Smart Grid Control Utilities may have increased control over loads E.g., water heaters, HVAC, etc. Coordination of loads in an area without sacrificing customer requirements Ability to more effectively re-route power flows Increased reliability Self-healing networks Incorporation of renewables
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