MOTOR CONTROLS (ELPT 1341)

Instructor: Aurelio Aguilar

Basic wiring practice of electrical circuits. Includes calculations as applied to alternating and direct current. Identify practical applications of jogging and plugging; describe the types of motor braking and their operating principles; explain different starting methods for large motors; and demonstrate proper troubleshooting methods on circuits using wiring and schematic diagrams.

  • Exhibit knowledge of safety rules and demonstrate awareness of electrical hazards.
  • Explain the components, operation and applications of relays, switches (temperature, level limit, pressure), push buttons and selector switches.
  • Demonstrate proficiency in the use of analog and digital multimeters to measure voltage, current, resistance, and continuity.
  • Identify symbols and interpret schematic, wiring and ladder diagrams used in control circuits.
  • Describe the operation and applications of solenoids.
  • Display dexterity in wiring motor controllers utilizing the start-stop push-button scheme, including multiple start/stop stations.
  • Perform the required wiring to control motors utilizing the hand-off automatic scheme using temperature, pressure, level, limit, flow, and photoelectric controllers.
  • Display dexterity in wiring motor controllers utilizing the forward-reverse scheme and describe the operation and application of interlocks.
  • Describe the operation and applications of time delay relays.
  • Exhibit familiarity with jogging, inching, limiting sequence schemes.
  • Describe requirements for motor installations and wiring practices in compliance with the current edition of the National Electrical Code.
  • Demonstrate familiarity with the selection of controllers, their rating and NEMA sizes, and the suitability of enclosures for specific installations.
  • Describe the operation and applications of solid state and variable speed controllers.
  • Describe the applications and usage of variable speed AC drives and Uninterruptible Power Supplies.