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  2. Electric power transmission - Wikipedia

    en.wikipedia.org/wiki/Electric_power_transmission

    Different classes of loads (for example, lighting, fixed motors, and traction/railway systems) required different voltages, and so used different generators and circuits. [7] [8] Thus, generators were sited near their loads, a practice that later became known as distributed generation using large numbers of small generators. [9]

  3. Electric power distribution - Wikipedia

    en.wikipedia.org/wiki/Electric_power_distribution

    Electric power distribution is the final stage in the delivery of electricity. Electricity is carried from the transmission system to individual consumers. Distribution substations connect to the transmission system and lower the transmission voltage to medium voltage ranging between 2 kV and 33 kV with the use of transformers. [ 1 ]Primary ...

  4. Electrical load - Wikipedia

    en.wikipedia.org/wiki/Electrical_load

    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.

  5. Three-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Three-phase_electric_power

    Three-phase electric power (abbreviated 3ϕ [1]) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. [2] It is a type of polyphase system employing three wires (or four including an optional neutral return wire) and is the most common method used by electrical grids worldwide to transfer ...

  6. Wireless power transfer - Wikipedia

    en.wikipedia.org/wiki/Wireless_power_transfer

    Generic block diagram of a wireless power system. Wireless power transfer (WPT; also wireless energy transmission or WET) is the transmission of electrical energy without wires as a physical link. In a wireless power transmission system, an electrically powered transmitter device generates a time-varying electromagnetic field that transmits ...

  7. Electrical grid - Wikipedia

    en.wikipedia.org/wiki/Electrical_grid

    The demand, or load on an electrical grid is the total electrical power being removed by the users of the grid. The graph of the demand over time is called the demand curve. Baseload is the minimum load on the grid over any given period, peak demand is the maximum load. Historically, baseload was commonly met by equipment that was relatively ...

  8. DC-to-DC converter - Wikipedia

    en.wikipedia.org/wiki/DC-to-DC_converter

    Protective relay. v. t. e. A DC-to-DC converter is an electronic circuit or electromechanical device that converts a source of direct current (DC) from one voltage level to another. It is a type of electric power converter. Power levels range from very low (small batteries) to very high (high-voltage power transmission).

  9. Voltage regulation - Wikipedia

    en.wikipedia.org/wiki/Voltage_regulation

    In electrical engineering, particularly power engineering, voltage regulation is a measure of change in the voltage magnitude between the sending and receiving end of a component, such as a transmission or distribution line. Voltage regulation describes the ability of a system to provide near constant voltage over a wide range of load conditions.