Title: Unit 6 Outline
Course: HET 119 HVACR Electricity II > Section: HET 119 HVACR Electricity II

Unit 6 Outline

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Unit 6 Outline

1. Motor Components
  - Rotor
  - Stator
  - Shaft
  - Run Windings
  - Start Windings
  - End Bells
2. Inductive Motor Operation
  - Magnetism
  - Induction
  - Two Pole Motors
  - Speed of Motors
  - Strength of Motors
3. Split Phase Motors
  - Sets of Windings
  - Purpose of Start Windings
  - Purpose of Start Windings
  - Controls used for disconnecting the Start Windings
4. Permanent Split Capacitors Motors
  - Operation of a PSC Motor
  - Efficiency of a PSC Motors
  - Uses of PSC Motors
5. Controlling the start windings
  - Centrifugal Switches
  - Current Relays
  - Potential Relays
6. Shaded Pole Motors
  - Operation of a Shaded Pole Motors
  - Efficiency of a Shaded Pole Motor
  - Uses of Shaded Pole Motors

Summary

- Motors are used to make comfort feasible through moving air, fluids, heat, cooling, and energy more efficiently.
- There are many types of motor but each type of motor will have its own special purpose.
- Shaded poles motors are the least efficient motor while 3 phase motors are the most efficient.
- Capacitors are use on split phase motors to make it more efficient.
- Start windings should only stay in the circuit for a short time or the motor can be damage.
- Relays or switch are used to disconnect the start windings after starting up.
- The speed and strength of a motor is based on the number of windings the motor have.

Review the vocabulary terms listed below and look up their definitions / descriptions before taking the Vocabulary Quiz.

Vocabulary

End Bell

Rotor

Stator

Shaft

Capacitor

Current Relay

Potential Relay

Split Phase

Permanent Split Capacitor Motor

Shaded Pole Motor

Inductive Motor