Electrical Substations

  • Giovanni Petrecca
Part of the Power Electronics and Power Systems book series (PEPS)


Electric energy is commonly delivered to industrial users by three-phase networks at medium or high voltage. The values of medium and high voltage are defined by international standards; broadly, medium voltages range from 5 to 25 kV and high voltages range from 50 to 500 kV. Higher and lower values can be found according to local conditions.


Load Factor Capital Cost Transformer Efficiency Industrial User Medium Voltage 
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Copyright information

© Springer Science+Business Media New York 1993

Authors and Affiliations

  • Giovanni Petrecca
    • 1
  1. 1.Faculty of EngineeringUniversity of PaviaItaly

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