Correct application of soft start and variable speed technology is often poorly understood. Both technologies fulfill their own important yet distinct roles in the field of motor control, and correct selection and application of each is vital in order to realise the full benefit of each and avoid unnecessary expense.
Fixed Speed: Four to One
Sources suggest that nearly 80% of all AC induction motor applications worldwide are in fact fixed speed applications. If an application truly requires speed control, then a variable speed drive is the only choice, however for fixed speed applications, soft starters are typically the ideal selection. Here's three reasons to consider: