Electricians' operating and testing manual; a hand book for men in charge of electrical apparatus, repair men, trouble men, lamp trimmers, and electricians generally (1916)
Horstmann, Henry Charles, Tousley, Victor Hugo, 1875- joint author · Chicago, F.J. Drake & co · leaf 326
ns and the shunt field con 320 Operating ana Testing nected directly to the secondary as shown in Figures191 and 192. Various other combinations of both cur-rent and potential transformers are made use of; as,for instance, on a three-wire circuit of large capacity.In this case two current… … Figure 191 general directions which apply to all. A meter is asomewhat delicate instrument and, although built towithstand ordinary usage, efficient operation demandscareful and intelligent handling. As has been stated,the revolving element of recording wattmeters restson jewel bearings. A slight…
Electrical engineering · Electric testing
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