National motor energy development policy
Development and Reform Commission [2012] No. 181: "Notice on Implementing the Task of Efficient Motor Promotion in 2012"
1.→GB18613-2006 Energy efficiency level 3 (ordinary efficiency) prohibits production, phase out
2.→New and relocated high efficiency motor
3.→ Ministry of Industry and Information Technology [2009] No. 67 involving motors (J, JO, YB) eliminated before the end of 2013
4.→JS/JSQ motor eliminated before the end of 2015
Motor energy analysis
1. The energy consumption of the motor
2. YE3 motor efficiency improvement
(1) Reduced stator loss
Higher quality grade steel wire
Compact end design
Good slot full rate
Excellent dipping process
Appropriate increase in core length (reduced current density)
(2) Reduce wind and wear loss
Use a smaller fan without reducing the cooling effect
Higher quality bearings
Higher level of stator and rotor concentricity, reducing vibration and friction
(3) Reduced stray loss
Optimized electromagnetic design
More demanding manufacturing process measures
(4) reduce rotor aluminum consumption
Excellent rotor die casting process
Improved rotor insulation
High pressure die cast aluminum rotor
High rotor dynamic balance requirements
(5) Reduced iron loss
Efficient punching is used to ensure low loss and high magnetic properties of the material.
Advanced and reasonable volume design
Thinner silicon steel sheet
YE3 ultra-efficient motor efficiency comparison
