Hi dears! Today D.Ros gives us the next article of his article series about motors. As usual, it is very interesting ; just judge by yourself:
Since electrical motors have been around, the cornerstone of heavy duty industrial operations (as crushers, grinders, mills, hoists, blowers, chippers, mixers, compressors, centrifugal pumps, exhausters, etc.) have been driven with synchronous motors for their high power and most efficient way to convert alternating current into mechanical energy; as for, different to asynchronous (induction) motors, their main source of magnetic field is derived from direct current injection rather than through the air-gap.
Figure 1: Ball & SAG mills powered by synchronous motors in an ore crushing operation
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