Efficiency of 95%, Wofu Permanent Magnet Technology's direct drive permanent magnet motor has won the first level energy efficiency certification, leading the industry to a new height of energy conservation

       Recently, Anhui Wofu Permanent Magnet Technology Co., Ltd., with its profound accumulation and continuous innovation in the field of permanent magnet transmission and drive technology, has successfully obtained the first level energy efficiency certification for its cooling tower direct drive permanent magnet motor with an efficiency of 95%, in accordance with the national standard "GB 30253-2013 Energy Efficiency Limit Values and Energy Efficiency Grades for Permanent Magnet Synchronous Motors". This achievement not only highly recognizes the technological research and development strength of Wofu Permanent Magnet Technology over the years, but also sets a new energy-saving benchmark for the industry, effectively promoting the green development process in related fields.

       The cooling tower direct drive permanent magnet motor that has obtained the first level energy efficiency certification this time is the result of the dedicated research of the technical team of Wofu Permanent Magnet Technology. Compared to traditional cooling tower technology solutions on the market, cooling tower direct drive permanent magnet motors produce the speed and torque required for heavy-duty equipment operation, without the need for speed reduction through reducers or auxiliary transmission equipment, achieving direct connection between permanent magnet direct drive motors and load equipment. Significantly reducing energy loss during motor operation and significantly improving the efficiency of converting electrical energy into mechanical energy. In practical operation, this means that enterprises can drive equipment with less electricity consumption, effectively reducing production costs, carbon emissions, and meeting the urgent global demand for energy conservation, emission reduction, and sustainable development.

In addition, the protection level of the direct drive permanent magnet motor in the Wofu permanent magnet cooling tower is IP67, which meets the requirements for long-term operation in humid and hot environments. The cooling method is self cooling, with a low failure rate. The stator coil is wound with corona resistant enameled copper wire, and the end coils of the winding are padded with suitable materials, with an insulation level of H. The motor adopts a dual process of "vacuum pressure coating" and "epoxy resin vacuum sealing" to ensure good dust and moisture resistance. The rotor adopts an embedded permanent magnet structure, and the permanent magnet can withstand a temperature of 180 ℃; High efficiency and high power factor; Low rotational speed and significant vibration reduction effect; Simplified transmission process, minimal maintenance, and high reliability.

The 132kW cooling tower fan of a certain cement plant waste heat power generation project in Hailuo has been installed with a permanent magnet direct drive motor. The parameters of the cooling fan are 132kW/1480rpm/380V for the original motor; The reduction ratio of the gearbox is 9.87; The rated speed of the fan blade is 150rpm, and it has been operating stably since the transformation of the Wofu cooling tower permanent magnet direct drive motor.

After using one 132 kW permanent magnet direct drive motor for the cooling tower fan motor, under the same operating conditions, the average hourly current of a single permanent magnet motor decreases by about 32A under full load in summer. The measured voltage during operation is about 380V. Taking U=380V, cos φ=0.96, and η=0.95, the power is P=1.732UIcos φ η=1.732 × 0.38 × 32 × 0.96 × 0.95=19.2 (kW), and it is expected to save 19.2kWh of electricity per hour under full load in summer; The current drops by about 16%, and the energy-saving effect of speed regulation in autumn and winter reaches over 40%.

 As a national high-tech enterprise, a national specialized and innovative "little giant" enterprise, and a national intellectual property advantage enterprise, Wofu Permanent Magnet Technology has always regarded technological innovation as the core driving force for enterprise development. The company will take the first level energy efficiency certification of the permanent magnet motor as a new starting point and continue to deepen its cultivation in the field of permanent magnet transmission and drive technology. The company plans to further increase research and development investment, expand product application scenarios, provide customers with higher quality, efficient, and energy-saving motors, provide efficient and energy-saving motor solutions for more industries, contribute more corporate strength to achieve the national "dual carbon" goal, and continue to write a brilliant chapter in the global wave of green energy development.