BOC 211

Credits: .7
Lecture: 6 hrs
Class Exercise: 1 hr
Total: 7 hrs

Prerequisites: Students will have completed BOC Level 1 series or equivalent competency shall be shown.

Learning Outcomes/Competencies:
At the completion of Motors in Facilities, a participant will:

  • understand how motors work.
  • identify uses and applications of motors in facilities
  • be familiar with equipment & terms for use with motor vendors.
  • identify maintenance programs for motors in commercial facilities.
  • comprehend the causes of motor failure and key factors involved in repair or replace decision-making.
  • know how to use motor management practices to increase efficiency and improve performance.

Texts:  STUDENT HANDBOOK: BOC 211- Motors in Facilities, plus course handouts

Special Equipment (provided by instructor): 3 phase motor, single phase motor (run / start cap.), motor starter, phase monitor, time delay, class 10 and class 20 overload, old bearing, magnet wire coil, resilient mount motor, ASD, EASA failure chart, electric motor management software, electric motor management repair specifications.


a. Test 100%

BOC 211 – Motors in Facilities: Course Outline

1. Introduction

a. Course overview & objectives
b. Audience experiences and interest areas
c. Reference material

2. Overview of How Motors Work

a. AC & DC motor fundamentals
b. Magnetic induction
c. Power factor
d. Series & parallel connections
e. What is horsepower?

3. AC Motor Types

a. Three phase motors
b. Three phase motor characteristics
c. Connections
d. Single phase motors
e. Single phase motor principles
f. Single phase motor types
g. Multi-speed motors
h. Constant torque
i. Variable torque

4. Applying Motors in Facilities

a. NEMA Frames and Re-rates
b. Standard Designations
c. Custom Designations
d. Enclosure Types and Considerations

5. Load Characteristics

a. Ways to determine motor loads
b. Load calculations
c. Measuring motor loads

6. Motor Control

a. Circuit protection and disconnect
b. Motor starters
c. Electronic controllers
d. Adjustable speed drives
e. Soft Starters
f. Motor control support devices

7. Motor Maintenance

a. Environmental considerations
b. Bearings & lubrication
c. Mounting/remounting
d. Dirt & corrosion
e. Heat, noise, vibration
f. Scheduled maintenance
g. Resilient mounting

8. Motor Failures

a. Bearings
b. Single phasing
c. Moisture and age
d. Voltage source problems
e. Learning from motor failures

9. Motor Management

a. Available tools (software)
b. Inventory of facility motors
c. Repair/replace decisions
d. Repair specifications

10. Outside Sources

a. Repair of motors
b. Replacing motors
c. Unusual considerations

11. Energy Efficient Motors

a. EPAct 1994 (October 1997)
b. Nominal efficiency
c. Guaranteed efficiency
d. Energy efficient motor selection
e. Determining power costs
f. Assessing economic feasibility

12. Open Discussion