Electric Transmission of Energy and Its Transformation, Subdivision, and Distribution: A Practical HandbookWhittaker & Company, 1886 - 331 páginas |
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Página 4
... turn out a failure in any particular case , the loss to the contractor would not be so very serious . The dynamo , the wire , and the lamps have all their fixed market value , and if they have to be removed from one installation , they ...
... turn out a failure in any particular case , the loss to the contractor would not be so very serious . The dynamo , the wire , and the lamps have all their fixed market value , and if they have to be removed from one installation , they ...
Página 16
... turn all the molecules so as to point one way , without , however , displacing them bodily , we would obtain a number of parallel magnetic chains showing free magnetism at their ends only , and therefore capable of exerting magnetic ...
... turn all the molecules so as to point one way , without , however , displacing them bodily , we would obtain a number of parallel magnetic chains showing free magnetism at their ends only , and therefore capable of exerting magnetic ...
Página 18
... turn become the seat and origin of lines of force , and can then be used to magnetize other bars . It will also be clear that after a bar has been magnetized , the space surrounding it becomes filled with lines of force which emanate ...
... turn become the seat and origin of lines of force , and can then be used to magnetize other bars . It will also be clear that after a bar has been magnetized , the space surrounding it becomes filled with lines of force which emanate ...
Página 53
... turn of wire wound on their armature core . An ideal machine of this kind is shown in Fig . 13. The field magnets N S are placed Fig . 13 . N S IDEAL ALTERNATING CURRENT DYNAMO . horizontally opposite each other , and their polar ...
... turn of wire wound on their armature core . An ideal machine of this kind is shown in Fig . 13. The field magnets N S are placed Fig . 13 . N S IDEAL ALTERNATING CURRENT DYNAMO . horizontally opposite each other , and their polar ...
Página 57
... turns counted on both sides of the spindle is Nt , the average electro - motive force will be 1 E = 2 z n 60 Nt . For most practical purposes , and especially for the trans- mission of energy , alternating currents are , however , not ...
... turns counted on both sides of the spindle is Nt , the average electro - motive force will be 1 E = 2 z n 60 Nt . For most practical purposes , and especially for the trans- mission of energy , alternating currents are , however , not ...
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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...