Our is the third post in our series on motor management which covers various aspects of motor integration in an electrical network and the industrial process. In the first , the electrical, thermal and mechanical constraints necessary to consider for large motor starting have been presented in detail. In the second post the typical application constraints have been introduced. In this post we will try to answer the question: how to select the right motor starting solution for a concrete application? There are several motor starting solutions that we can compare simply through the next table: By looking on the table we can decide that a variable speed drive is the solution for each case. And this would be right in the principle. However, the final decision will depend on several installation criteria which is related to: Economical interest – the cost of the solution Engineering simplicity – the efforts to evaluate this solution and to commission it Maintenance easiness – wh...