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Electrical Technology, Vol2: Machines and Measurements, 1/e by S. P. Bali

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35

D.c. Motor Control

OBJECTIVES

In this chapter you will learn about:

  • Motor speed control
  • Control devices: hand-operated mechanical switches, face plate and drum
  • Starter switches, two-point, three-point, and four-point
  • Pilot control devices and their symbols
  • Relay types and symbols
  • Comparison of manual and automatic starters
  • Reversing the direction of shunt, series, and compound motors
  • Manual reverse control
  • Various interlocking devices
  • Retardation and stopping
  • Dynamic, regenerative and electric brakes
  • Jogging
  • Calculation of speed and simple problems on the above issues
  • Ward Leonard system
image

D.c. Motor control

35.1  INTRODUCTION

Any substantial-sized ...

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