These motor peformance improvement opportunities address both component and system issues.
Motors are widely used in commercial and industrial facilities, and they account for more than half of the electricity used nationwide. The U.S. Department of Energy (DOE) has identified seven motor performance improvement opportunities that address both component and system issues.
1. Address motor and drive system operating conditions
Screen all motors to identify those that are essential and consume the most energy.
Identify motor size and annual operating hours.
Determine each motor's load-duty cycle u2014 the percentage of time that a motor operates at a given load.
2. Establish a motor management program
Institute repair/replace and purchasing policies.
Establish a motor and parts inventory.
Track motor life.
Implement a schedule for required maintenance.
3. Provide basic maintenance
Preventive maintenance u2014 inspection, insulation, resistance, balance and alignment
Predictive maintenance u2014 vibration, lubricant, thermography and electrical signature
4. Select the right motor
Match motor type to the application using the following characteristics:
Horsepower and speed
5. Use variable frequency drives
Identify torque (varying versus constant)
Consider speed variation characteristics
Choose between electrical and mechanical type
Avoid inappropriate uses
6. Address in-plant electrical distribution and power quality issues