Jung-Uk Lim, Ph.D.     

Electrical Engineering

Arkansas Tech University


  Electric power systems are real-time electric energy generation and delivery systems. A power system starts with generation, by which electrical energy is produced in the power plant and then transformed in the power station to high-voltage electrical energy that  is more suitable for efficient long-distance transportation.

   The  power plants transform other sources of energy in the process of  producing electrical energy. For example, heat, mechanical, hydraulic,  chemical, solar, wind, geothermal, nuclear, and other energy sources are  used in the production of electrical energy. High-voltage (HV) power  lines in the transmission portion of the electric power system  efficiently transport electrical energy over long distances to the  consumption locations. Finally, substations transform this HV electrical  energy into lower-voltage energy that is transmitted over distribution  power lines that are more suitable for the distribution of electrical  energy to its destination, where it is again transformed for residential, commercial, and industrial consumption.



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Updated and Managed by Jung-Uk Lim  / Last Update: 2014 Spring