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 193
ig. 68.)A magnet holds the handle in opposition to the spring inthat position in which all the resistance is cut out^ The IB2 mag-net is usually energized by the current which passesthrough the shunt coils on the motor. If, for any reason,the power which operates the motor should fail, the mag-net… … Figure 68Blagvam of automatic starting box showing coniiGetSo53S If the resistance in the starting rheostat were entirelycut out and the power was thrown onto the motor fromten to a hundred times full load current would flow throughthe armature, causing very bad sparking and almost cer-tainly…
Electricity
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