Presentation - CPUT Active Web

INTRODUCTION• Approx. 56% of electrical energy in RSA is used byelectric motors (>80% in Industry)• SANS 600034 Part 30 introduces Energy Efficiency iclasses for Electric Motors• Currently the highest Efficiency class is IE3• IE3 motors have a 1% to 3% higher efficiency thanstandard motors (Can be higher for small motors)• However, there can be unintended consequences ifstandard motors are simply replaced by IE3 motors– even higher energy consumption!