On November 22, 2021, Ministry of industry and information technology and State Administration of Market Regulation issued 《the motor energy efficiency improvement plan (2021-2023) 》, which arouse the public heat attention of motor energy efficiency.
The plan proposes to carry out energy-saving transformation of running motors. Encourage key industries such as iron and steel, nonferrous metals, petrochemical, chemical, building materials and textiles to carry out energy-saving diagnosis of energy consuming equipment, and evaluate the promotion energy-saving technologies with the energy efficiency level. Guide enterprises to update and upgrade key energy consuming equipment such as motors, give priority to high-efficiency and energy-saving motors, and speed up the elimination of backward and inefficient motors which do not meet the energy efficiency standards. Promote variable frequency speed regulation permanent magnet motors with level 2 energy efficiency and above.
Bauer gear motor has been deeply developing high-efficiency and energy-saving motor for years, and its Permanent Magnet Synchronous Motor can save energy up to 30%. PMSM adopts permanent magnet rotor, which no voltage induction in the rotor, no heat losses in the rotor, rotor losses reduced by 100%.
Test conclusion in a Sewage treatment plant
One Bauer PMSM and another normal motor did an energy test in a sewage treatment plant
Continuous run during 114 hours with 2 Motors, from Aug. 12th (12:00 am) to Aug. 17th (5:00 am) 2016.
Current: PMSM 5A; Normal motor 8,9A
Power factor: PMSM:0.9; Normal motor 0.72
Electric energy: PMSM:732.95 - 412.81 = 320.14
Average 2.808 / hour
Normal motor: 2528.33 - 2060.95 = 467.38
Average 4.100 / hour
Conclusion: Comparing PMSM motor and normal motor, PMSM can save:
(4.100 - 2.808）/ 4.100 * 100% = 31.51%
Energy efficiency Comparison
Efficiency diagram 2D Area diagram of IE3 motor
What are the advantages of Bauer PMSM Technology
- High efficiency IE3 / IE4 / IE5，
- Extreme high efficiency at varying loads and speeds,
- Synchronous speed，
- High torque (starting T ~ 4 to 5 times of T nominal)
- High speed range (0 – 120Hz)
- Lower starting current and running current compared to ASM motors
- Smaller motor size，
- ATEX Zones with IE3 / IE4，Zone 1, 2, etc.
- Short amortization time
