Two common methods exist for driving induction motors with VFDs – linear scalar control, which is often labeled as V/f, and vector, or field-oriented control, which can be a bit more complex to understand. Variable frequency drives are the industry-standard method of controlling 3-phase induction motors. The output of a VFD creates a DC pulse … Read more
Variable frequency drive units can be found inside tons of control cabinets, but what happens if you disassemble one to see what’s inside and how it works? We did just that. The results might surprise you. Here at this, we’ve been on a bit of a variable frequency drive (VFD) kick recently, but who can … Read more
Coil, field winding, rotor, stator, eddy current… When it comes to motors, there are numerous terms that describe the theory of operation, but what is inside a 3-phase motor? Take a look, and learn how they work. One of the most common devices to find inside any industrial operation is the 3-phase induction motor. These … Read more