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An electrical load is an electrical component or portion of a circuit that consumes (active) electric power, [1] [2] such as electrical appliances and lights inside the home. The term may also refer to the power consumed by a circuit. This is opposed to a power supply source, such as a battery or generator, which provides power. [2]
A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. As a result, power supplies are sometimes referred to as electric power converters. Some power supplies are ...
Together, electronic and electric devices, their development, maintenance, and power supply comprise the subject of electrical engineering. The majority of electric devices in households is stationary and — due to their considerable power consumption — relies on electrical installation , especially electric outlets instead of small electric ...
Devices which use rechargeable batteries include automobile starters, portable consumer devices, light vehicles (such as motorized wheelchairs, golf carts, electric bicycles, and electric forklifts), road vehicles (cars, vans, trucks, motorbikes), trains, small airplanes, tools, uninterruptible power supplies, and battery storage power stations.
A large data-center-scale UPS being installed by electricians. An uninterruptible power supply (UPS) or uninterruptible power source is a type of continual power system that provides automated backup electric power to a load when the input power source or mains power fails.
The rate at which a device consumes energy. power converter Apparatus intended to convert electric power to another form of electric power, such as conversion between AC and DC or changing frequency or phase number. power distribution That portion of an electrical grid between the substation or bulk supply and the end consumer. power electronics
3. Set-Top Box Average Wattage: 16-57 watts Cost per Year: $16-$57 Many homes have multiple set-top boxes, which leads to a bigger energy suck. Consider unplugging boxes that aren't used regularly ...
An electric power system is a network of electrical components ... though, due primarily to generation ... which specifies the amount of power the device consumes. At ...