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 311
gsdorf and Begole frequency meter. The operation of this meter is basedon the fact that if an alternating pressure of E Volts be impressed on a condenser ofcapacity C, in farads, the current in amperes will be equal to 2v ~ EC, provided the pres-sure be constant. In construction, the scale is… … FlG. 2,569.—General Electric horizontal edgewise, induction type frequency indicator, Itis provided with an external inductance and resistance placed in a ventilated cage formounting on the back of the switchboard. Means are provided for adjusting the instru-ment for the characteristics of the…
Electrical engineering
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