Permanent magnets have been used to provide the magnetic field in small to medium-sized generators for many years. The use of these in large renewable energy (RE)generators may offer performance advantages for future utility-scale generators.
The permanent magnet synchronizing variable frequency compressor is the most recent compressor with excellent quality and high efficiency and energy saving at present. It is an advanced technique owned by only a few advanced countries and zones in the world. It is a high-end tendency for future compressor development.
Rare earth Nd-Fe-B permanent magnet generator can save more than 15% more energy than ordinary generators.
With the motive to reduce the Energy cost in our Air Compressors, we now introduce Energy-saving Permanent Magnet Motors with our VFD models which decrease Energy consumption substantially to save even more energy as well as money. Enneng permanent magnet motor uses a motor with a temperature rise lower than 60K, ensuring the compressor has a longer life. The motor is made from rare earth permanent magnet material, which requires a low current due to its high magnetic strength and load torque during motor start-up and operation. The combined use of this motor and permanent magnet rotor achieves soft-start and electricity saving of up to 50%, with the motor's efficiency up to 10%-15% when compared with an asynchronous motor with the same specifications, thus avoiding a powerful mechanical impact on the compressor under the motor's full pressure start and ensuring a longer service life.
Electric motors are used to run innumerable appliances and equipment in today’s industrialized world. Silent and reliable, they have been a machinery staple for many years and are often found in compressors. However, they present some drawbacks. Permanent magnet motors offer excellent performance without inadvertently damaging compressors, leading to less wear and longer system lifespan.
Increased efficiency from variable speed technology could make many more small hydro sites economically feasible to develop.
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