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Collectively, the RTGs supply each Voyager spacecraft with 470 watts at launch. [7] [8] MHW-RTGs were used on the Lincoln Experimental Satellites 8 and 9. Subsequent US spacecraft used the GPHS-RTG, which used similar SiGe thermoelectric devices but a different packaging of the fuel. The MMRTG is a newer RTG type, used on the Curiosity rover.
An induction coil (Ruhmkorff coil) was used in low-power transmitters, usually less than 500 watts, often battery-powered. An induction coil is a type of transformer powered by DC, in which a vibrating arm switch contact on the coil called an interrupter repeatedly breaks the circuit that provides current to the primary winding, causing the ...
Generac's power systems range in output from 800 watts to 9 megawatts, [7] and are available through independent dealers, retailers and wholesalers. [6] Generac is headquartered in Waukesha, Wisconsin , [ 3 ] [ 4 ] and has manufacturing facilities in Berlin , Oshkosh , Jefferson , Eagle , and Whitewater ; all in Wisconsin.
The motor–generator set may contain a large flywheel to improve its ride-through; however, consideration must be taken in this application as the motor–generator will lose speed and may draw a large current when power returns or the circuit-breaker is re-closed. If the speed loss is excessive (the power outage is too long), the re-closure ...
"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 ...
Most commonly, a small magneto, termed a bottle dynamo, rubs against the tire of the bicycle and generates power as the wheel turns. More expensive and less common but more efficient is the hub dynamo that rotates neodymium magnets around a copper coil in a claw pole cage inside the hub of a wheel.
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