Search results
Results from the WOW.Com Content Network
In an electrical power distribution system, a ring main unit (RMU) is a factory assembled, metal enclosed set of switchgear used at the load connection points of a ring-type distribution network. It includes in one unit two switches that can connect the load to either or both main conductors, and a fusible switch or circuit breaker and switch ...
EPRI—Electric Power Research Institute (US) EPSA—Electric Power Supply Association; EQR—Electric Quarterly Report; ERA—Economic Regulatory Administration (part of United States Department of Energy; ERCOT—Electric Reliability Council of Texas, Inc, a regional transmission organization. (US) ERGEG—European Regulators Group for ...
An electric power plant that furnishes the part of load that does not vary during a day. battery An electrochemical device that produces electric power from chemical reactions. battery eliminator An AC adapter, which allows battery operated equipment to run on wall-socket AC power. Bayer filter An optical filter used in color digital cameras ...
This glossary of power electronics is a list of definitions of terms and concepts related to power electronics in general and power electronic capacitors in particular. For more definitions in electric engineering, see Glossary of electrical and electronics engineering .
In electric power systems and industrial automation, ANSI Device Numbers can be used to identify equipment and devices in a system such as relays, circuit breakers, or instruments. The device numbers are enumerated in ANSI/IEEE Standard C37.2 Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations.
Electric power is the rate of transfer of electrical energy within a circuit.Its SI unit is the watt, the general unit of power, defined as one joule per second.Standard prefixes apply to watts as with other SI units: thousands, millions and billions of watts are called kilowatts, megawatts and gigawatts respectively.
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.
Illustration of the "reference directions" of the current (), voltage (), and power () variables used in the passive sign convention.If positive current is defined as flowing into the device terminal which is defined to be positive voltage, then positive power (big arrow) given by the equation = represents electric power flowing into the device, and negative power represents power flowing out.