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 192
PROTECTIOX DEVICES 1,711 continual surges be set up in the circuit, a resonant voltage dueto the presence of the choke coil cannot build up at the trans-former or generator terminals. This factor is a menace to theinsulation. Another way of stating the condition is as follows:So arrange the choke… … . 2.410.—Westinghouse choke coil for high pressure transmission circuits, 2,200 to 25,000volts. Choke coils of this type are wound without iron cores on circular or ellipticalcenter blocks. They have a large number of layers and few turns per layer (exceptthose made for small currents, they usually…
Electrical engineering
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