TIPS FOR ENERGY EFFICIENCY IN MOTORS

• Properly size to the load for optimum efficiency.
(High efficiency motors offer of 4 - 5% higher efficiency than standard motors)
• Use energy-efficient motors where economical.
• Use synchronous motors to improve power factor.
• Check alignment.
• Provide proper ventilation
(For every 10oC increase in motor operating temperature over recommended peak, the motor life is estimated to be halved)
• Check for under-voltage and over-voltage conditions.
• Balance the three-phase power supply.
(An Imbalanced voltage can reduce 3 - 5% in motor input power)
• Demand efficiency restoration after motor rewinding.
(If rewinding is not done properly, the efficiency can be reduced by 5 - 8%)