Electric Transmission of Energy and Its Transformation, Subdivision, and Distribution: A Practical HandbookWhittaker & Company, 1886 - 331 páginas |
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Página ix
... Horse - power of Motors - Losses due to Me- chanical and Magnetic Friction - Efficiency of Conversion - Electrical Efficiency - Formulas for Dynamos and Motors · 83-98 CHAPTER IV . Types of Field Magnets - Types of Armatures - Exciting ...
... Horse - power of Motors - Losses due to Me- chanical and Magnetic Friction - Efficiency of Conversion - Electrical Efficiency - Formulas for Dynamos and Motors · 83-98 CHAPTER IV . Types of Field Magnets - Types of Armatures - Exciting ...
Página 2
... power obtained from the small coal which is not worth being carried by rail ... power for underground rail- ways in coal mines . The other two great natural ... horse - power , and the total production of INTRODUCTORY . 3 coal in the ...
... power obtained from the small coal which is not worth being carried by rail ... power for underground rail- ways in coal mines . The other two great natural ... horse - power , and the total production of INTRODUCTORY . 3 coal in the ...
Página 3
... energy of several thousand horse - power . A small portion of this power is utilized by a turbine , which works a generating dynamo . The cur- rent is conveyed by an overhead line , consisting of a pair of copper wires ( 270 mils ...
... energy of several thousand horse - power . A small portion of this power is utilized by a turbine , which works a generating dynamo . The cur- rent is conveyed by an overhead line , consisting of a pair of copper wires ( 270 mils ...
Página 6
... horse - power . It might be brought round sharp corners , and , having little weight , it can be fixed with greater ease than any mechanical connection . It is thus possible to bring ... horse - power in 6 ELECTRIC TRANSMISSION OF ENERGY .
... horse - power . It might be brought round sharp corners , and , having little weight , it can be fixed with greater ease than any mechanical connection . It is thus possible to bring ... horse - power in 6 ELECTRIC TRANSMISSION OF ENERGY .
Página 7
... horse - power in one single engine at a far less cost of fuel than could be done in small engines , and although the double conversion necessitated by electrical distribution of energy entails some loss , there is still a large margin ...
... horse - power in one single engine at a far less cost of fuel than could be done in small engines , and although the double conversion necessitated by electrical distribution of energy entails some loss , there is still a large margin ...
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Términos y frases comunes
amperes armature core arrangement battery brake brushes cable capital outlay cent chapter commercial efficiency commutator conductor connected constant speed cost counter-electro-motive force Creil curve cylinder dead points diameter distance dynamos and motors electric transmission electrical efficiency electrical energy electrical resistance electro-motive force employed engine equal equation exciting power experiments external field magnets flow formula friction Gramme dynamo Gramme machine greater heat horse-shoe hydraulic inches increase insulation iron latter length lines of force load loss machine magnet pole magnetic field magnetic resistance Marcel Deprez maximum mechanical energy motive force number of lines obtained ohms parallel placed pole pieces position practical pressure produced proportional represent revolutions a minute rheostat right angles self-induction self-regulating series-wound shown in Fig shunt coils slider spindle steam-engine steel strength tion total number trans transmission of energy transmitted volts weight whilst wound وو
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Página 209 - ... filled with paper, wood shavings, or other protective material that prevent the articles from moving about or coming in contact with each other or with the sides of the box In course of transmission. (2) Liquids, oils, etc. Liquids, oils, and substances which easily liquefy must be enclosed in hermetically sealed receptacles. Each receptacle must be placed in a separate box of metal, strong wood, or strong corrugated...
Página 210 - Now, if we have a single pair of cables, one of them connected to the positive and the other to the negative terminal of the...