Electric Transmission of Energy and Its Transformation, Subdivision, and Distribution: A Practical HandbookWhittaker & Company, 1886 - 331 páginas |
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Página 3
... diameter ) to Bienne , a distance of about a mile , where it works two electro - motors ; one in a mill where silver is rolled , and where the power re- quired is very variable ; the other in a watch factory where , on account of the ...
... diameter ) to Bienne , a distance of about a mile , where it works two electro - motors ; one in a mill where silver is rolled , and where the power re- quired is very variable ; the other in a watch factory where , on account of the ...
Página 27
... diameter . To put the magnet into the same condition as the wire its length would have to be equal to the thick- ness of the wire , and it would thus become a flat disc , one side of which we assume to be covered with N mag- netic ...
... diameter . To put the magnet into the same condition as the wire its length would have to be equal to the thick- ness of the wire , and it would thus become a flat disc , one side of which we assume to be covered with N mag- netic ...
Página 52
... diameter and nine inches in length , will , when driven at a speed of 2,000 revolutions a minute , give a current of 5,000 Amperes at a difference of poten- tial of two Volts . According to the inventor , an arma- ture four feet in diameter ...
... diameter and nine inches in length , will , when driven at a speed of 2,000 revolutions a minute , give a current of 5,000 Amperes at a difference of poten- tial of two Volts . According to the inventor , an arma- ture four feet in diameter ...
Página 55
... diameter , and it will flow from B2 through the external circuit , and enter the machine at B1 during the time the crank is on the left - hand side of the vertical diameter . Let n be the number of revolutions per n 1 minute , then 2 rw ...
... diameter , and it will flow from B2 through the external circuit , and enter the machine at B1 during the time the crank is on the left - hand side of the vertical diameter . Let n be the number of revolutions per n 1 minute , then 2 rw ...
Página 68
... diameter of commutation joining the points of con- tact of the brushes with the commutator cylinder will , therefore , be horizontal . In the position shown the nega- tive , or left brush , will touch segment D , and the right or ...
... diameter of commutation joining the points of con- tact of the brushes with the commutator cylinder will , therefore , be horizontal . In the position shown the nega- tive , or left brush , will touch segment D , and the right or ...
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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...