Electric Motors and Adjustable Speed Drives

Electric motors play an important role in the operations of most commercial and industrial facilities. Premium efficiency motors and adjustable speed drives often can improve the efficiency of motor-driven systems and can reduce energy costs. The goal of this course is to present useful information about how to manage your motors, and how to keep your motors and business operating smoothly. It explores electric motors and systems and demonstrates where and how you might implement energy efficient motors in your facility.

This course begins with electric motor terms and nameplate data, discusses loads and load matching, losses and efficiency. It describes what makes motors efficient and new standards to rate them. Discover how adjustable speed drives are applied and how they can provide more efficient and effective use of electric power, which lowers energy costs, extends equipment life, and reduces overall maintenance costs. This course covers several common HVAC applications for adjustable speed drives, and explores where, when, and why their use in building systems is practical and financially viable.

Alternative version: Motors - To Repair or Replace, That is the Question

At what point is it more cost-effective to replace an electric motor rather than rewind it? The standards approved under the Energy Policy Act of 1992 increased the minimum motor efficiency requirements for "premium efficiency" motors. In this session, these new requirements and the costs of "premium efficiency" motors are compared with the associated costs of rewinding a motor. Also, this presentation covers criteria for efficiently replacing and rewinding motors.