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  2. High voltage - Wikipedia

    en.wikipedia.org/wiki/High_voltage

    Power lines with high voltage warning sign. Electrical transmission and distribution lines for electric power typically use voltages between tens and hundreds of kilovolts. The lines may be overhead or underground. High voltage is used in power distribution to reduce ohmic losses when transporting electricity long distance.

  3. RS-485 - Wikipedia

    en.wikipedia.org/wiki/RS-485

    Section 4 defines the electrical characteristics of the generator (transmitter or driver), receiver, transceiver, and system. These characteristics include: definition of a unit load, voltage ranges, open-circuit voltages, thresholds, and transient tolerance. It also defines three generator interface points (signal lines); A, B and C.

  4. Electronic component - Wikipedia

    en.wikipedia.org/wiki/Electronic_component

    Electronic components are mostly industrial products, available in a singular form and are not to be confused with electrical elements, which are conceptual abstractions representing idealized electronic components and elements. A datasheet for an electronic component is a technical document that provides detailed information about the ...

  5. Three-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Three-phase_electric_power

    The conductors between a voltage source and a load are called lines, and the voltage between any two lines is called line voltage. The voltage measured between any line and neutral is called phase voltage. [4] For example, for a 208/120-volt service, the line voltage is 208 volts, and the phase voltage is 120 volts.

  6. Universal Electronic Test Chart - Wikipedia

    en.wikipedia.org/.../Universal_Electronic_Test_Chart

    Off-air capture of a UEIT-2 test card Recreation of the UEIT-2 test card ТИТ-0249, monochrome predecessor of the UEIT test card. UEIT - Universal Electronic Test Chart (russian: УЭИТ - Универсальная электронная испытательная таблица) is a Soviet/Russian test card, designed to test TVs operating in the analogue SECAM colour standard.

  7. Insulator (electricity) - Wikipedia

    en.wikipedia.org/wiki/Insulator_(electricity)

    To support this lateral load, strain insulators are used. For low voltage lines (less than 11 kV), shackle insulators are used as strain insulators. However, for high voltage transmission lines, strings of cap-and-pin (suspension) insulators are used, attached to the crossarm in a horizontal direction. When the tension load in lines is ...

  8. Electrical termination - Wikipedia

    en.wikipedia.org/wiki/Electrical_termination

    In electronics, electrical termination is the practice of ending a transmission line with a device that matches the characteristic impedance of the line. Termination prevents signals from reflecting off the end of the transmission line.

  9. Harmonics (electrical power) - Wikipedia

    en.wikipedia.org/wiki/Harmonics_(electrical_power)

    In an electric power system, a harmonic of a voltage or current waveform is a sinusoidal wave whose frequency is an integer multiple of the fundamental frequency.Harmonic frequencies are produced by the action of non-linear loads such as rectifiers, discharge lighting, or saturated electric machines.