Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 171
hat to double the ELECTRIC VEHICLES 2,825 weight of a vehicle means doubling the power required for start-ing, and doubling the velocity means four times the power.Accordingly, to meet these conditions, especially when startingunder severe conditions, as on a sandy road, or in ascending ahill, the… … Fig. 4,068.—Waverly 80 volt motor, in construction it is series wound medium speed.The armature rotates on ball bearings; four poles are used. cent, grade at 7 miles per hour, although no more than 360 watts arerequired to propel the vehicle on an even asphalt roadway at 8 3/2 milesper hour. These…
Electrical engineering
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