In this article, Mitchell Marks explains the basics and requirements for testing electrical inverters and machines. What he likes about this application:
"Motors took over the industrial world for 100 years without having any ability to control them because they were clean and reliable, just plug them in and they go. Now that we have the ability to control them they are being integrated everywhere from cell phones to submarines. With so many applications the work will never end and no day will ever be the same."