Given a motor with the following parameters: Rw = 12 Ω (winding resistance) Kv = 5.67mV/RPM (back e.m.f. constant) Kt = 552 gm-cm/A (Torque constant) Rf = 0.0236 gm-cm/RPM (mechanical friction) (a) What voltage should be provided for unloaded speed of 4000 RPM? (b) Let the motor drive two similar generators. What speed should be at 16Volts?

Given a motor with the following parameters: Rw = 12 Ω (winding resistance) Kv = 5.67mV/RPM (back e.m.f. constant) Kt = 552 gm-cm/A (Torque constant) Rf = 0.0236 gm-cm/RPM (mechanical friction) (a) What voltage should be provided for unloaded speed of 4000 RPM? (b) Let the motor drive two similar generators. What speed should be at 16Volts?

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter39: Synchronous Motor Operation

Section: Chapter Questions

Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...

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