Elektrisk generator

En elektrisk generator eller dynamo (af græsk dynamis, "kraft") er en maskine, hvormed bevægelsesenergi omdannes til elektrisk energi i form af jævn- eller vekselstrøm.

Den første brugbare generator blev konstrueret 1867 i Tyskland, ved konstruktionen udnyttedes H. C. Ørsteds opdagelse af elektromagnetismen.

De fleste mindre elmotorer kan også benyttes som generatorer.

Se også

Vindturbine

Transportabel_elektrisk_generator.jpg

Eksterne henvisninger

Et heftigt el-hjul på 120kW som både er elmotor og dynamo: e-traction.com: TheWheel™ - what it is and what it does Citat: "...operating at more than 90% energy efficiency...delivers up to 120 KW of direct drive traction at the only place where it matters,.....at the wheel...the braking action is converted back to electrical power. This process is called regenerative braking..."
Asynkrongeneratorer (induktionsgeneratorer) Citat: "...Denne forskel i pct. af den synkrone hastighed, kaldes for generatorens slip..."
Webarchive backup: AEM Dessau: Three Phase Synchronous Generators - Features and Operating Performance Citat: "... Since mechanical damage can occur on the generator and the set please ensure that false synchronisations are avoided at all times...."
Dromey Design: Articles: Generators and Motors Citat: "... Stability... synchronous generators... In the event of a fault, the displacement between supply and generator terminal voltage vectors increases and the vectors can oscillate or 'swing' against each other..."
madsci.org: Re: What is the difference between a synchronous and asynchronous generator?
Webarchive backup: Asynchronous Generator, Use a Induction Motor As A Generator Citat: "... The above two diagrams were approved by and for use by Haywood Electric in North Carolina in the 1970's. They are to used as guides and all your interface controls must be approved by your electric utility. The prices indicated are 1970's prices...."
2004-11-26, Sciencedaily: Mini Generator Has Enough Power To Run Electronics Citat: "...The device’s magnet spins at 100,000 revolutions per minute (rpm)..."

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Eksterne henvisninger