The practical testing of dynamos and motors (1905)
Smith, Charles Frederick, 1873- · Manchester Scientific Pub. Co · leaf 152
e resistance R,, entirely cut out,increase its value gradually, so as to decrease the voltageat the motor terminals. For each value of the voltageobserved upon voltmeter V, take readings of the speedof the armature, and of the exciting current. Althoughnot strictly part of the experiment, readings… … Ai) AfWAr RiFig. u. Ml M2 Supply mains.M Motor armature.F Motor field windings.R^ Adjustable resistance for varying voltage at armature terminals.R2 Adjustable resistance for regulating excitingcurrent.*Ai Ammeter for measuring armature current.A.> Ammeter for measuring exciting current.V…
Dynamos · Electric motors
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