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  2. Labor Day Generator Sales 2023: The Best Deals on Portable ...

    www.aol.com/lifestyle/best-early-labor-day-deals...

    More importantly, the generator can run a 15,000-BTU RV air conditioner so that you can stay cool during a late-summer heatwave. ... The 2,500-watt generator offers two 120-volt, 20-amp AC outlets ...

  3. 15 kV AC railway electrification - Wikipedia

    en.wikipedia.org/wiki/15_kV_AC_railway...

    For example, a generator turning at 1,000 rpm would be wound with two pole pairs rather than six. Separate plants supply railway power in Austria, Switzerland and Germany, except for Mecklenburg-Western Pomerania and Saxony-Anhalt ; converters powered by the grid supply railway power in those two German states plus Sweden and Norway.

  4. Electric generator - Wikipedia

    en.wikipedia.org/wiki/Electric_generator

    A generator using permanent magnets (PMs) is sometimes called a magneto, or a permanent magnet synchronous generator (PMSG). Armature: The power-producing component of an electrical machine. In a generator, alternator, or dynamo, the armature windings generate the electric current, which provides power to an external circuit.

  5. Dynamo - Wikipedia

    en.wikipedia.org/wiki/Dynamo

    "Dynamo Electric Machine" (end view, partly section, U.S. patent 284,110) A dynamo is an electrical generator that creates direct current using a commutator.Dynamos were the first electrical generators capable of delivering power for industry, and the foundation upon which many other later electric-power conversion devices were based, including the electric motor, the alternating-current ...

  6. Pratt & Whitney PW1000G - Wikipedia

    en.wikipedia.org/wiki/Pratt_&_Whitney_PW1000G

    The family of engines generates 15,000 to 34,000 lbf (67 to 151 kN) of thrust, it uses gearboxes rated between 16,000 hp (12,000 kW) and 32,000 hp (24,000 kW). [39] By putting a 3:1 gearbox between the fan and the low-pressure spool, each spins at its optimal speed: 4,000–5,000 RPM for the fan and 12,000–15,000 RPM for the spool, the high ...

  7. Droop speed control - Wikipedia

    en.wikipedia.org/wiki/Droop_speed_control

    Droop speed control is a control mode used for AC electrical power generators, whereby the power output of a generator reduces as the line frequency increases. It is commonly used as the speed control mode of the governor of a prime mover driving a synchronous generator connected to an electrical grid. It works by controlling the rate of power ...