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  2. Power factor - Wikipedia

    en.wikipedia.org/wiki/Power_factor

    For example, if the load power factor were as low as 0.7, the apparent power would be 1.4 times the real power used by the load. Line current in the circuit would also be 1.4 times the current required at 1.0 power factor, so the losses in the circuit would be doubled (since they are proportional to the square of the current).

  3. Flexible AC transmission system - Wikipedia

    en.wikipedia.org/wiki/Flexible_AC_transmission...

    A simple Circuit Diagram showing two buses connected through an impedance, with a Vector Diagram representing the phase-angle between them ¯ = ¯ ¯ ¯ Apparent Power flow, and thus real and reactive power, is then given by

  4. Valley-fill circuit - Wikipedia

    en.wikipedia.org/wiki/Valley-fill_circuit

    A valley-fill circuit is a type of passive power-factor correction (PFC) circuit. For purposes of illustration, a basic full-wave diode-bridge rectifier is shown in the first stage, which converts the AC input voltage to a DC voltage.

  5. Electric power transmission - Wikipedia

    en.wikipedia.org/wiki/Electric_power_transmission

    Four circuits are shown. Two additional circuits are obscured by trees on the far right. The entire 6809 MW [1] nameplate generation capacity of the dam is accommodated by these six circuits. Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation.

  6. Voltage optimisation - Wikipedia

    en.wikipedia.org/wiki/Voltage_optimisation

    Reactive power needs to be generated and distributed through a circuit to provide sufficient real power to enable processes to run. Reactive power increases significantly with increasing voltage as the reactance of equipment increases. Correcting this with voltage optimisation will therefore lead to a reduction in reactive power and improvement ...

  7. Negative-feedback amplifier - Wikipedia

    en.wikipedia.org/wiki/Negative-feedback_amplifier

    Paul Voigt patented a negative feedback amplifier in January 1924, though his theory lacked detail. [4] Harold Stephen Black independently invented the negative-feedback amplifier while he was a passenger on the Lackawanna Ferry (from Hoboken Terminal to Manhattan) on his way to work at Bell Laboratories (located in Manhattan instead of New Jersey in 1927) on August 2, 1927 [5] (US Patent ...

  8. Circuit diagram - Wikipedia

    en.wikipedia.org/wiki/Circuit_diagram

    A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations.

  9. Wilson current mirror - Wikipedia

    en.wikipedia.org/wiki/Wilson_current_mirror

    In the circuits of Fig. 1 and Fig. 2, the output voltage of importance is the potential from the collector of Q 3 to ground. The measure of that independence is the output impedance of the circuit, the ratio of a change in output voltage to the change in current it causes.