Many motors only have two settings: on and off. They operate at constant speed. If a motor turning at constant speed is driving a device or process that requires less output, adjustments are required to achieve the desired output level. This adjustment is often achieved by letting the motor run at full speed, while using downstream devices to block part of the output. This is like driving your car by having one foot fully depressing the accelerator pedal, and the other on the brake to constantly control the speed. It sounds absurd, but this is still one of the most common control methods. An estimated 60% of motors are not speed controlled. The focus of this course is to explore the different ways we can control motor speed efficiently and with minimal physical stress on equipment. In addition, we'll discuss other advantages such as controlled starting and regulated torque.
* At the completion of this course you will be able to:
* Identify main motor starting methods
* Recognize the frequency converter principle and its advantages
* Realize substantial energy savings using speed control
* Reduce harmonic distortion generated by frequency converters
* Calculate the payback of an investment in a variable speed drive
This course has been approved by the IEEE for the following continuing education credit:
• Approved by IEEE for (0.1) CEU.
To gain credit, send an email to firstname.lastname@example.org course(s) completed and your IEEE membership number for a certificate to submit.
This course has been approved by the US Green Building Council (USGBC)for the following continuing education credits:
• Approved by USGBC for (1) GBCI CE Hour for LEED Professionals
• Approved for (1) GBCI CE Hour
• Approved for (1) GBCI CE Hour for LEED Credentialing Maintenance Program (CMP)
This course has been approved by American Hotel and Lodging Educational Institute (AHLEI) for the following recertification points:
• Certified Engineering Operations Executive (CEOE) for (1) point.
This course has been approved by BOMI International for the following continuing education credit:
• Approved by BOMI for (1) CPD point. This course qualifies for Continuing Professional Development (CPD) credits for graduates of the RPA, FMA, and/or SMA designation programs by BOMI International, the Independent Institute for Property and Facility Management Education.
This course has been approved by the Construction CPD Certification Service for the following continuing education credit:
• Approved by CPD for (1) CPD point
The American Society for Healthcare Engineering (ASHE) has approved this course for continuing education credits. ASHE issues in quarter-hour increments, and this course qualifies for .50. The total of 10 contact hours equals 1 continuing education credit.
"""This course has been approved by the The Institute of Hospital Engineering, Australia (IHEA) for the following continuing education credits:
* Approved by IHEA CHCFM Program for (.75) continuous professional development credits"""
Many motors only have two settings: on and off. They operate at constant speed. If a motor turning at constant speed is driving a device or process that requires less output, adjustments are required to achieve the desired output level. This adjus...
Active Energy Efficiency Using Speed Control
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