EPNES Tutorial on Power Dist Systems GTH

Power Engineering concepts for Industrial Engineerseconcepor alTutorial onPower Distribution CircuitsG. HeydtArizona State UniversityMarch, 2003Arizona State UniversityArizona State University1Power Engineering concepts for Industrial Engineerseconcepor alWhat is power distribution?Power systems are made up of:!Generation!Transmission!DistributionGeneration systems are the large generating units that produce AC voltages at high power levels.Transmission systems are long distance, very high power level systems to transmit power from city to city.Distribution systems are local, lower power systems that take power from the intercity grid and bring this to residences, commercial customers, and industrials.Arizona State UniversityArizona State University2Power Engineering concepts for Industrial Engineerseconcepor alTypical numbersTransmis- Generation Distributionsion Typical 35 kV 345 kV 15 kV voltages Typical 800 MW 800 MW 1 MW power Local in In a power Inter-city, Typical size neighbor-plant 200 km hood, 5 km Arizona State UniversityArizona State University3Power Engineering concepts for Industrial Engineerseconcepor alTypical configurationsTransmission systems are NETWORKED usually. That is there are many loads and many sources, and many lines that join these points in a mesh, networked fashion.PRESCOTTWINSLOWFLAGSTAFFTEMPEPHOENIXHOLBROOKNOGALESArizona State UniversityArizona State University4Power Engineering ...