Hawkins Electrical Guide: Number 6; Questions, Answers and Illustrations; A Progressive Course of Study for Engineers, Electricians, Students and ... and Its Applications; A Practical Treatise - Softcover

Nehemiah Hawkins

Softcover

ISBN 10: 1333315317 ISBN 13: 9781333315313

Publisher: Forgotten Books, 2019

Synopsis

Excerpt from Hawkins Electrical Guide: Number 6; Questions, Answers and 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

Parts; construction - field windings for induction mo tors - calculation for revolutions of rotating field; objection to high speed of field - diificulty with low frequency currents general character of field winding - formation of poles grouping of coils - starting of induction motors: external resistance, auto-transformer, internal resistance methods internal resistance induction motors; adaptation - how resistance is cut out - why not desirable for large sizes external resistance or slip ring motors - operation armature connections - single phase induction motors service suitable for - disadvantage - parts - why not self starting - how started - phase splitting; production of rotating field from oscillating field - methods - starting coils - shading coils - character of the starting torque modification of armature for starting with heavy load clutch type of single phase induction motor; its action in starting commutator motors classification action of closed coil rotating in alternating field - the transformer pressure generated pressure self-induction pressure local armature currents; reason for sparking; how reduced - high resistance connectors - effect of low power factor efiect of frequency - series motor - features - adaptation neutralized series motor - conductive method - inductive method - shunt motors - repulsion motors difficulty with early motors - means employed to stop sparking essentials of single repulsion motors - the term repul sion induction motor - oompensated repulsion motor power factor of induction motors - its importance false ideas in regard to power factor - speed and torque of motors.

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Edition details

• Publisher: Forgotten Books
• Publication date: 2019
• Language: English
• ISBN 10: 1333315317
• ISBN 13: 9781333315313
• Binding: Paperback
• Number of pages: 279