Electric Transmission of Energy and Its Transformation, Subdivision, and Distribution: A Practical HandbookWhittaker & Company, 1886 - 331 páginas |
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Página 47
... Practical Unit . · • Ampere · · Volt . · Ohm Quantity of electricity Capacity • Equivalent c . g . s . Unit . 10-1 · 108 · 109 · · 10- 10-9 • · 10-15 Coulomb S Farad Microfarad CHAPTER II . First Electro - motor - Professor Forbes.
... Practical Unit . · • Ampere · · Volt . · Ohm Quantity of electricity Capacity • Equivalent c . g . s . Unit . 10-1 · 108 · 109 · · 10- 10-9 • · 10-15 Coulomb S Farad Microfarad CHAPTER II . First Electro - motor - Professor Forbes.
Página 52
... Amperes at a difference of poten- tial of two Volts . According to the inventor , an arma- ture four feet in diameter by four feet in length would produce an electro - motive force of sixty Volts when driven at a speed of 1,000 ...
... Amperes at a difference of poten- tial of two Volts . According to the inventor , an arma- ture four feet in diameter by four feet in length would produce an electro - motive force of sixty Volts when driven at a speed of 1,000 ...
Página 89
... ampere - meter indicated twenty- six divisions . I then augmented the speed of the dynamo until the motor made thirty - two revolutions per second , and yet the ampere - meter only indicated twenty - seven divisions instead of twenty ...
... ampere - meter indicated twenty- six divisions . I then augmented the speed of the dynamo until the motor made thirty - two revolutions per second , and yet the ampere - meter only indicated twenty - seven divisions instead of twenty ...
Página 92
... wish to insert these values expressed in practical units of amperes and vults we have measure . W = 10-8 x 10 + 1 W = 10-7 ... voltamperes , · watts . HORSE - POWER GIVEN OUT . 93 To obtain the 92 ELECTRIC TRANSMISSION OF ENERGY .
... wish to insert these values expressed in practical units of amperes and vults we have measure . W = 10-8 x 10 + 1 W = 10-7 ... voltamperes , · watts . HORSE - POWER GIVEN OUT . 93 To obtain the 92 ELECTRIC TRANSMISSION OF ENERGY .
Página 93
... amperes , then the number of English horse - powers which could be obtained from it , if there were no losses , is H - P = Ea Ca 746 • 12 ) . Retaining the notation of equations 5 ) and 6 ) , we have also 1 H - P = Z Nt n 10-6 Ca.
... amperes , then the number of English horse - powers which could be obtained from it , if there were no losses , is H - P = Ea Ca 746 • 12 ) . Retaining the notation of equations 5 ) and 6 ) , we have also 1 H - P = Z Nt n 10-6 Ca.
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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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