Understanding Motor Nameplate Information - NEMA vs. IEC Standards (Ohio Timed & Monitored)

In Understanding Motor Nameplate Information , you'll learn ...

• Who determines the nameplate information
• The definition of volts, FLA, Hz, PF, Torque and HP
• The meaning of time rating or duty cycle
• Rating temperature

Overview

To meet the Ohio Board's intent that online courses be "paced" by the provider, a timer will be used to record your study time. You will be unable to access the quiz until the required study time of 100 minutes has been met.

Credit: 2 PDH

Length: 25 pages

One of the most important aspects of making motors interchangeable is ensuring that nameplate information is common among manufacturers. International standards such as NEMA and IEC provide key electrical, mechanical, construction and reliability parameters on the motor to aid with the consumer expectations of “standard” motors from different manufacturers that meet or exceed the minimum performance parameters.

This 3 -hour course provides a brief overview of how to read and interpret motor nameplate information and highlights the major differences between National Electric Manufacturers Association (NEMA) and the International Electrotechnical Commission (IEC) motor standards.

This course is of interest to professional engineers, service technicians, energy auditors, operational and maintenance personnel, sales and marketing personnel, and anyone who specifies, buys, maintains or replaces motors.

Learning Objectives

Upon completion of this course, participants will be able to:

• Describe who determines the nameplate information.
• Explain the definitions of volts, FLA, Hz, PF, torque and HP.
• Determine the meaning of time rating or duty cycle.
• Describe the temperature rating.
• Explain frame size and enclosure.
• Identify the service factor.
• Describe motor design codes.
• Explain full-load RPM and synchronous speed.
• Compare the differences between IEC terminology and NEMA standards.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 20 questions. PDH credits are not awarded until the course is completed and quiz is passed.