Electricians' operating and testing manual; (1910)
Horstmann, Henry C. [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. H. Drake & co · leaf 41
magnet 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 fiefd magnet and is oftenspoken of merely as the 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 the…
Electrical engineering · Electric testing
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