Background In 2010, the new standard IEC 61439 series was published to replace the IEC 60439 series. The purpose of the IEC 61439 series of standards is to harmonize as …
I was reminded of this article which I have written about two (2) years ago when I attended some product presentations about variable speed drives. What catch my attention most …
Practically, all engineering design problems require three (3) elements to come up with a complete solution. 1. Measurable Elements. These elements can be determined with exactness. Example – material costs, …