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 506
tery capacity.The cost for power will vary from 50c to probably $2.50 per charge per locomotive, depend-ing upon the type, size and efficiency of the batteries furnished, as well as the efficiency ofthe charging equipment: The cost of power is here considered at 5 cents per kw. hr. Thefrequency of… … O Ia uo>o a 1 a<u.aH 5 B *o.2 <L> <D So •8* O 2— ^ o^ *-• CO -|-> I *a<* 2 CO g the friction of the brake shoeon the car wheels, it isobvious that the longer theinterval of time allowed be-tween the cutting off ofthe power and the ap-plication of the brake, theless will be the…
Electrical engineering
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