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  2. Phase converter - Wikipedia

    en.wikipedia.org/wiki/Phase_converter

    An American Rotary Phase Converter with a Transformer. A phase converter is a device that converts electric power provided as single phase to multiple phase or vice versa. The majority of phase converters are used to produce three-phase electric power from a single-phase source, thus allowing the operation of three-phase equipment at a site that only has single-phase electrical service.

  3. Three-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Three-phase_electric_power

    Three-phase transformer with four-wire output for 208Y/120 volt service: one wire for neutral, others for A, B and C phases. Three-phase electric power (abbreviated 3ϕ [1]) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. [2]

  4. Electric power conversion - Wikipedia

    en.wikipedia.org/wiki/Electric_power_conversion

    Consumer voltage converters (also known as "travel converters") are used when traveling between countries that use ~120 V versus ~240 V AC mains power. (There are also consumer "adapters" which merely form an electrical connection between two differently shaped AC power plugs and sockets , but these change neither voltage nor frequency.)

  5. Rotary converter - Wikipedia

    en.wikipedia.org/wiki/Rotary_converter

    The self-balancing dynamo is of similar construction to the single- and two-phase rotary converter. It was commonly used to create a completely balanced three-wire 120/240-volt AC electrical supply. The AC extracted from the slip rings was fed into a transformer with a single center-tapped winding. The center-tapped winding forms the DC neutral ...

  6. Voltage converter - Wikipedia

    en.wikipedia.org/wiki/Voltage_converter

    Most single phase alternating-current electrical outlets in the world supply power at 210–240 V or at 100–120 V. A transformer or autotransformer can be used; (auto)transformers are inherently reversible, so the same transformer can be used to step the voltage up, or step it down by the same ratio.

  7. HVDC converter - Wikipedia

    en.wikipedia.org/wiki/HVDC_converter

    Three-level converters can synthesize three (instead of only two) discrete voltage levels at the AC terminal of each phase: + ⁠ 1 / 2 ⁠ U d, 0 and - ⁠ 1 / 2 ⁠ U d. A common type of three-level converter is the diode-clamped (or neutral-point-clamped ) converter, where each phase contains four IGBT valves, each rated at half of the DC ...

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