. Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise. tratiaf the ---.:-. ..i :c attachiap Ac field Modi la the kat bfthe Botched cods of the pate pieces are daded into the gwies in the . ■ _•--■: t Ques. What are slip ringsInsulated rings moonte collect the altei ator shaft to::-—.-•:--. :•■.: n~ •;-:;rated in an alternator of the revolving armatare type. In coastxaction provision is made for att-arfcing the
. Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise. tratiaf the ---.:-. ..i :c attachiap Ac field Modi la the kat bfthe Botched cods of the pate pieces are daded into the gwies in the . ■ _•--■: t Ques. What are slip ringsInsulated rings moonte collect the altei ator shaft to::-—.-•:--. :•■.: n~ •;-:;rated in an alternator of the revolving armatare type. In coastxaction provision is made for att-arfcing the Se4d winding CONSTRUCTION OF ALTERXATORS mechanically uponthe shaft, but areinsulated from itand from one an-other. The current is in-troduced by meansof brushes as vcommutator. C .-bon brushes are gen-erally used. A good design ofslip ring should pro-vide for air circula-tion underneath andbetween the rings. Ques. Whatform of spider isused on large alter-nators ? Ans. It is prac-tically the same form. Fig. — General Electric field coil, showing onemethod of winding. In the smaller machines thewire is wound on spools which are slipped over thepole pieces, which are built of sheet iron, spreading atthe pole face so as to secure not only a wide polar arcfor the proper distribution of the magnetic flux, butalso to hold the field windings in place.
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Keywords: ., bookcentury1900, bookdecade1910, bookidhawkinselect, bookyear1914
