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 205
AWKIXS ELECTRICITY Short Circuit in Individual Coils.—This is a commonfault, which makes its presence known by a \-iolent heating ofthe armature, flashing at the commutator, flickering of the lighton hghting circuits, and by a smell of burning varnish or over-heated insulation. When these… … FiG. 700.—Method of lofaringsh<»tcircaitedannatnrecwL Disooooect the external and fieldcircnits from the annatore.and pass a laige cnneat—say bom 20 to 100 amperes—from abattery (B> or srnnttwr- dynamo throng the wh<^ aimatme by means of the bntdies.Then, having prevkmsty well cleaned the…
Electrical engineering
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