What is VVVF drive elevator?
What is VVVF drive elevator? Variable Voltage Variable Frequency (VVVF) Lift Drive employs frequency inverter technology which regulates input voltage and frequency throughout the journey, drawing much less current during acceleration and deceleration. What is difference between VFD and VVVF? Most commonly, the terms VFD and VSD are interchangeable. The term VVVF is often used in the mining industry – it refers to a variable voltage variable frequency drive. It describes exactly the same AC drive as the term VFD – any AC drive will automatically control voltage to suit the frequency it is running at. What does VVVF stand...