{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

elect3 - Power Power Summary Alternator u Background Type...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Power Power Summary Alternator u Background Type Magneto-Electric Holmes (1856) Alliance (1857) Dynamo-Electric Gramme (1873) Siemens (1873) Approx. Speed Output (rpm) (kw) Weight u de Meritens u Gramme u Wilde & Siemens u Ferranti u Gordon u Mordley Cost £ AC AC 400 400 2.0 2.3 51 36 550 494 DC DC 420 480 3.2 5.5 25 11 320 265 Alternator u Early Dynamos t Constant Maintenance w w t Could not Be Design For AC u Alternating Baron A. de Maritens Manufactured - 1880 Permanent Magnets u Magneto-Electric Type u Installations u u t Trinity House - S. Foreland t Lizard Lighthouses Current t Better Wave Form - Efficiency t Alternator t Back To Work Of Holmes u u Still In Use In 1947 4.5 kw At 830 rpm w Gramme (1878) u u Wilde (1878) Rotating Field Exciter - Built Into Alternator Carcass t 2-Polar Dynamo With Ring Armature u Armature Coils t Bobbins Similar To Holmes u Siemens u t Eliminated Iron cores On Bobbins Sebastian Sebastian Ziani de Ferranti J. E. H. Gordon (1852-1893) u Power u 1881 Rotor Winding u Plants u Largest Alternators Of The Time (1885) u Alternator Advantage u t 600 hp At 146 rpm t 10 ft Diameter t 22 tons t Problem t Copper Ribbon t Free To Expand w u Power Source t Steam At 160 psi W. M. Mordey (1856-1938) Paddington Great Western Railway Station (1885) u 1886 Rotating Field Magnet u Fixed Stator u t Coil Between Two Steel Plates Gordon Alternators Electric Lighting u Lighthouses t Limelight (1850) u Background u Transformers w t Electric Arc-Lamps, “Jablochkoff Candles” (1857) “Jablochkoff u Street Electric Power Stations Lighting - Electric Arc t Paris (1875) t Llondon (1878) u Domestic Lighting t Electric Arc-Lamps - Too Powerfull t Filament Lamp (1881) u Deptford Power Station Or AC u Parallel Operation Of Alternators u DC Background Background u First Brighton Power Station (1887) Power Station (1882) t Supplied Private Customers t Holborn Viaduct Station - Edison Co. u Brighton & Godalming Gallery (1883) u Grosvenor t AC @ High Voltage t Customers Given Series Transformers t Ferranti w w Transformers Deptford Power Station (1991) u Intended To Supply London u Ferranti u Faraday (1831) t Principle Of AC Transformer t Transmission At High Voltage (10,000 V) w Ÿ Ÿ Ÿ w u Gaulard & Gibbs (1883) t Adjustable Core t Series Circuit u Ferrenti Or Westinghouse t Parallel Circuit t Power Output w w u Led To Small Power Stations t Maiden Lane (1889) Deptford Power Station (1891) Maiden Lane D.C. D.C. Or A.C. u Pro D.C. Or A.C. (Continued) u A.C. t Advantages A.C. w t England w w t Disadvantages t U.S. w w u Pro u D.C. D.C. t Advantages t England w w w t U.S. t Disadvantages w w w D.C. Or A.C. (Continued) Batteries u Arguments u Primary t Brown & Edison w w u Single t Westinghouse t Bitter Fights Between Edison & Westinghouse u Change-Over w t Equal Number Of D.C. & A.C. In 1890 t London (1958) u Two Fluid Class t Constant Electromotive Force w Batteries - Single Fluid Helm (1850) u Batteries - Two Fluid Warren de la Rue (1868) t Carbon Replaced Copper Used For Telegraph u Daniell Cell u t Electrolyte - Dilute Sulfuric Acid t Lead Dioxide t Silver Chloride u t Constant Voltage t Plates Did Not Waste G. Leclanche (1866) u R. W. Bunsen (1844) t Active For Long Periods t No Unpleasant Fumes t Lead Acid t Carbon & Zinc Plates With Chromic Acid u Grenet (1859) - Shown t Carbon & Zinc Plates With Potassium Dichromate Fluid Class t Voltaic Cell - Zinc & Copper t Problem - Variable Voltage t Subject To Polarizartion w u Batteries t Non reverseable Chemical Reaction t Single Or Two Fluid Classes u Minotto Cell u Fuller Cell t Replaced Pot With Sand t 12 Cells t Telegraph (1875) ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern