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 43
agnet coils in the circuit equal tothe resistance of the line. If there are many magnetstheir combined resistance is made equal to that of theline. It must be understood of course that only cop-per wire of the highest conductivity should be used. CHAPTER IV PRINCIPLES OF DYNAMO-ELECTRIC MACHINES… … Figure 21 dynamo is known as the Afield magnet and is oftenspoken of merely as ^Hhe fields. In the simplerforms of generator these fields are usually stationary.The other part of the dynamo is known as the arma-ture. In all machines in which the fields are station- 39 40 Operating and Testing ary…
Electrical engineering · Electric testing
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