Презентация, доклад на тему Типы генераторов переменного тока.

rotor in a magnetic field to generate alternating current electricity.

by rotating a loop of copper wire between the poles of a permanent magnet he could produce an alternating electrical current.

refinements in, present-day AC generators.

an electromagnetic field.

current circuit in the stator windings.

by the strength of the magnetic field, the windings in the rotor, the poles in the stator and the speed at which the shaft rotates.

120 volts AC and 60 cycles per second (Hertz). Sixty Hertz is the standard frequency in the United States. Travelers to Europe find other frequencies.

car is powered by the engine.

steam, water or gas turbines. Steam is produced by the burning of coal, oil or natural gas, or from heat generated by radioactive decay in the case of nuclear power.

a dam. Gas turbines use the products of natural gas or oil combustion directly to turn a turbine.

engines. These engines use gasoline, diesel fuel, propane or natural gas as fuel. Some AC generators are even driven by DC (direct current) electric motors in one form of motor-generator set.

and powered by engines operating on hydrocarbon fuels are used for portable generators for construction projects, as standby units to protect buildings from power outages, as the sole source of power at remote locations and to limit power usage in utility systems that charge extra for use above a given quantity.

smaller ones but also have other applications, including for use in oil and gas extraction, mining machinery and rail and marine transportation.

be used as a motor-generator set. These applications require from 200 kilowatts to 18 megawatts.

power when used to replace much of the utility power in a computer or telecommunications facility.