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- · New York, T. Audel · leaf 251
ascer-tained if a supply of electrical energy be available in the 670 HAWKINS ELECTRICITV mains. This may readily be discovered by means of a voltmeter,or if low tension service, by means of the fingers bridging acrossthe main terminals. If the supply of energy be present, thecontact arm of the… … Fig. 743.—Starting panel. In installing any kind of motor starting rheostat, it is necessaryto proN-ide main line knife switch and luses in addition to the starting box. The appearanceof the installation can be much improved by mounting all of these upon one panel. Having closed the switch, if the…
Electrical engineering
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
