Katana VentraIP

Electric power system

An electric power system is a network of electrical components deployed to supply, transfer, and use electric power. An example of a power system is the electrical grid that provides power to homes and industries within an extended area. The electrical grid can be broadly divided into the generators that supply the power, the transmission system that carries the power from the generating centers to the load centers, and the distribution system that feeds the power to nearby homes and industries.

Smaller power systems are also found in industry, hospitals, commercial buildings, and homes. A single line diagram helps to represent this whole system. The majority of these systems rely upon three-phase AC power—the standard for large-scale power transmission and distribution across the modern world. Specialized power systems that do not always rely upon three-phase AC power are found in aircraft, electric rail systems, ocean liners, submarines, and automobiles.

For convenience, miniature circuit breakers are now almost always used in the fuse box instead of fuses as these can easily be reset by occupants and, if of the thermomagnetic type, can respond more quickly to some types of fault.

For safety reasons, are now often installed on appliance circuits and, increasingly, even on lighting circuits.

RCDs

Whereas residential air conditioners of the past might have been fed from a dedicated circuit attached to a single phase, larger centralised air conditioners that require three-phase power are now becoming common in some countries.

Protective earths are now run with lighting circuits to allow for metallic lamp holders to be earthed.

Increasingly residential power systems are incorporating , most notably, photovoltaic cells.

microgenerators

Power system simulation

IEEE Power Engineering Society

Archived 16 November 2009 at the Wayback Machine

Power Engineering International Magazine Articles

Archived 19 February 2009 at the Wayback Machine

Power Engineering Magazine Articles

American Society of Power Engineers, Inc.

National Institute for the Uniform Licensing of Power Engineer Inc.