Electrical Engineering for Electric Light Artisans and Students ... PDF Download

Author: Sir William Slingo
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Author: William Slingo
Publisher: Arkose Press
ISBN: 9781343814929
Category :
Languages : en
Pages : 872

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author: Sir William Slingo
Publisher:
ISBN:
Category : Electric engineering
Languages : en
Pages : 926

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Author: Sir William Slingo
Publisher:
ISBN:
Category : Electric engineering
Languages : en
Pages : 672

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Author: William Slingo
Publisher: Arkose Press
ISBN: 9781343822153
Category :
Languages : en
Pages : 872

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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Author: Sir William Slingo
Publisher:
ISBN:
Category : Electric engineering
Languages : en
Pages : 802

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Author: Sir William Slingo
Publisher:
ISBN:
Category : Electric lighting
Languages : en
Pages : 0

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Author: William Slingo
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 753

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Author: Sir William Slingo
Publisher:
ISBN:
Category : Electric engineering
Languages : en
Pages : 880

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Author: Sir William Slingo
Publisher: Rarebooksclub.com
ISBN: 9781230163963
Category :
Languages : en
Pages : 264

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ...to be just a little wider than one segment. It can be shown that any winding, however complex, can be reduced to this scheme, so that what follows is of universal application. Suppose the armature to be driven in the sense shown in the figure, and that the brushes are connected to an external resistance; currents will then flow in the armature conductors in the direction indicated by the arrows. In the coil A the current flows in one direction and in the coil c in the opposite direction, whilst the coil p. is short-circuited by the brush. It is thus evident that as the armature revolves each coil as it passes under the brush has the current flowing in it 'commutated, ' or changed in direction. In figs. 222, 223 and 224 three stages of the commutation of the current are shown. The student will probably have learned by this time that when two conductors are placed in contact there is, and always will be, some measure of resistance at the contact surfaces. Let us assume that the whole resistance between the commutator segments and the brush resting on them is indicated by s, then when the brush rests on two segments the resistance of the surface contact of the two segments is inversely proportional to the area of contact--that is, to the width of segment covered. Thus, for example, in fig. 222 the contact resistance between the biush and the segment a is w and the resistance between the segment /' and the brush is 4 w, where w represents the contact resistance of one segment. In fig. 223 the resistance between the brush and each of the segments a and /'is the same, and in fig. 224 the resistance between the brush and segment a is 4 w and between the brush and segment b is $ w. Hence as the commutator moves forward the current in the coil B..