Is the permanent magnet eddy current flexible speed regulator good?
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Some say he is good, while others say he has a high failure rate. When using a high-voltage motor for speed control, is it better to use variable frequency drive or permanent magnets? What are the initial investment, subsequent maintenance costs, and maintainability?
Is this device used by few people? Should it be in the electrical discussion thread?
Permanent magnets are probably better. Variable frequency drives are intended to save electricity, but due to harmonic effects, they do not actually contribute to energy savings in the entire enterprise’s power grid; in some cases, the use of variable frequency speed control is simply for the sake of easier operation!
If I say that using hydraulic couplings is a good option, will someone throw rotten eggs at me? Lol. The type of speed control method to use depends on the specific equipment and operating conditions, with each method having its own advantages and disadvantages. Choose the best option – prioritize cost-effectiveness, innovation, or practicality.
I just asked; for 3000 KW, a speed of over 1500 revolutions per minute makes it impossible to use permanent magnets
Domestically produced or jointly manufactured products have a higher failure rate, while fully imported products from well-known brands have a lower failure rate
Which brand is entirely imported? Haha. Are you from Liaoning?
Permanent magnet eddy current speed control has a limited range, large slip resulting in high heat loss and low efficiency.
2600KW, 3000 RPM permanent magnet technology is no longer a problem