Electrical Engineering for Electric Light Artisans and Students: (embracing Those Branches Prescribed in the Syllabus Issued by the City and Guilds Technical Institute)Longmans, Green, 1895 - 753 páginas |
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Página 221
... armature and pole faces may be accurately faced up and fit truly , the two joints in the magnetic circuit will make the magnetic resistance appreciably higher than it would be were the fibre of the iron continuous throughout . Were the ...
... armature and pole faces may be accurately faced up and fit truly , the two joints in the magnetic circuit will make the magnetic resistance appreciably higher than it would be were the fibre of the iron continuous throughout . Were the ...
Página 238
... armature A is removed . The surfaces in contact should fit as truly as possible , so that there is the minimum air space between them . Sharp corners or edges should be avoided , and , since the natural shape of the lines of force is ...
... armature A is removed . The surfaces in contact should fit as truly as possible , so that there is the minimum air space between them . Sharp corners or edges should be avoided , and , since the natural shape of the lines of force is ...
Página 265
... armature , ' and the iron round which the wire is coiled is known as the ' armature core . ' The core of one of the earliest forms of arma- ture is shown in section at A , between the poles of the circular magnet F , in fig . 128 , and ...
... armature , ' and the iron round which the wire is coiled is known as the ' armature core . ' The core of one of the earliest forms of arma- ture is shown in section at A , between the poles of the circular magnet F , in fig . 128 , and ...
Página 266
... armature is faulty may easily be proved , for , after being rotated for a little time , the iron shuttle or core gets quite warm , even though the armature coil may be dis- connected or removed entirely . Now , this heat , so developed ...
... armature is faulty may easily be proved , for , after being rotated for a little time , the iron shuttle or core gets quite warm , even though the armature coil may be dis- connected or removed entirely . Now , this heat , so developed ...
Página 267
... armature , or to build it up with a number of small discs cut to the required shape and bolted together , instead of using a solid piece of iron . The iron must be continuous in the direction in which the lines of force developed by the ...
... armature , or to build it up with a number of small discs cut to the required shape and bolted together , instead of using a solid piece of iron . The iron must be continuous in the direction in which the lines of force developed by the ...
Otras ediciones - Ver todas
Electrical Engineering for Electric Light Artisans and Students: (Embracing ... Sir William Slingo,Arthur Brooker Sin vista previa disponible - 2015 |
Electrical Engineering for Electric Light Artisans and Students: (Embracing ... William Slingo,Arthur Brooker Sin vista previa disponible - 2015 |
Términos y frases comunes
acid alternating current ammeter amount ampere-hours amperes apparatus arc lamp armature core battery brass brushes candle candle-power carbon cell commutator conductor connected considerable convolutions copper Crown 8vo current flowing current strength curve Daniell cell deflection developed diameter direct current direction dynamo eddy currents effect electrical electro-magnet electro-motive force employed equal external circuit external resistance field field-magnet coils filament fixed galvanometer heat illustrated in fig inch increase instrument insulated lamp length light lines of force machine magnetic magnetising maximum measured mercury metal motor needle negative number of lines obtained ohms pair parallel piece placed plates pole pole-pieces portion position potential difference practice pressure proportional reduced result revolutions per minute ring rotation round screw secondary self-induction shaft shown in fig shunt soft iron solenoid speed steel strip sulphate surface switch temperature terminals tion tube varies voltmeter volts watts wire wound zinc
Pasajes populares
Página 635 - To explain the construction of the common barometer, and to shew that the mercury is sustained in it by the pressure of the air on the surface of the mercury in the basin.
Página 582 - ... a few words on the subject may not be out of place.