Wiring diagrams of electrical apparatus and installations (1913)
McGraw-Hill · New York, McGraw-Hill Book Company · leaf 174
Fig. 258.—Connections for standard speed regulator. Rheostat in series with the arma-ture. The no-load release holds the arm in any position it may be left, by means of a dog whichfits into the notches corresponding to points on the rheostat. This arrangement makes itimpossible to stop anywhere,… … Fig. 259.—Connections for a compound speed regulator equipped with no-load and over-load releases. Speeds below normal are obtained bj^ inserting resistance in the armature circuit,and above normal by inserting resistance in the field circuit. The no-load release operatesexactly as described in…
Electric wiring
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