Twenty Ways to Optimize Energy Efficiency in the Use of Induction Motors

In Twenty Ways to Optimize Energy Efficiency in the Use of Induction Motors, you'll learn ...

• Characteristics, types and classification of motors based on NEMA
• Fixed and variable losses of induction motors
• Power quality and impact of voltage/phase imbalance and power factor on motor performance
• Motor efficiency vs. motor load and motor load vs. speed relationships

Overview

Preview a portion of this course before purchasing it.

Credit: 6 PDH

Length: 59 pages

The majority of electrical energy consumed in most industrial facilities is used to run electric motors. Annual energy operating costs of electric motors usually far exceed purchase prices. For example, a typical 25 horsepower (hp) motor running at full load for 6,000 hours per year would consume nearly $10,000 of electricity annually. An average purchase price for a motor of this size would be only $500 to $600.

Energy efficiency decisions are important decisions that affect operating cost for the life of the equipment. By optimizing the efficiency of your motor-driven systems, you can increase productivity while achieving substantial energy and dollar savings.

Opportunities for energy conservation are wide spread and applicable to new as well as old plants. It is important to note that majority of savings will accrue not on the motor itself but on the motor-driven system as a whole. This 6 - hour online course provides 20 different strategies to guide you into the electric motor evaluation process and highlights common ways you can improve system efficiency and reliability to achieve permanent long-term electric cost reduction.

This course is aimed at electrical and control engineers, energy auditors, operational & maintenance engineers, contractors and system designers who are responsible for design and operation of the system.

Learning Objectives

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

• Classify motor characteristics and types according to NEMA classifications.
• Distinguish fixed losses from variable losses in induction motors.
• Explain how power quality, voltage or phase imbalance, and power factor affect motor performance.
• Analyze the relationships between motor efficiency and load and between motor load and speed.
• Apply motor-load estimation techniques.
• Compare energy-efficient motors with standard motors.
• Evaluate motor-replacement costs using cost-evaluation methods and simple payback analysis.
• Explain how variable-speed drives can reduce motor energy consumption.
• Describe motor-transmission efficiency considerations involving synchronous belts and soft starters and starting systems such as direct-on-line and delta-star controllers.
• Evaluate factors involved in motor repair-versus-replacement decisions.
• Identify monitoring and maintenance practices for induction motors.

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 30 questions. PDH credits are not awarded until the course is completed and quiz is passed.