Practical electricity .. with questions and answers (1911)
Cleveland armature works, [from old catalog] comp, Lincoln, John C. [from old catalog] · [Cleveland, Ohio, Cleveland armature works] · leaf 100
C LEAKAGE. In dealing with the calculation of the magnetic circuitit niust be clearly kept in mind that all the magnetic linesdo not pass through the magnetic circuit as calculated.The air will carry lines of force and does carry a greatmany. The magnetic lines that are generated by the fieldcoils… … Figure 39Magnetic leakage in bipolar dynamo, horseshoe type. J. 90 In the Edison machines as actually made the leakagecoefficient is 1.4. That is, out of 140 lines produced in thefield cores only 100 pass throug-h the armature. In the other style of bipolar machine the leakage co-efficient is less…
Electricity
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