Quiz: Understanding inverter-rated motor windings and VFD voltage stress

When it comes to inverter-rated motors, not all windings are created equal. In fact, differences in insulation design and construction can mean the difference between long-term reliability and premature failure. As more plants rely on variable frequency drives (VFDs) to control motor speed and improve efficiency, understanding how voltage stress impacts motor windings is essential for maintenance, reliability, and engineering teams.

Test your knowledge of inverter-duty motors, voltage reflections, and winding insulation. If you need to study first, read this Plant Services article, “Why all inverter-rated motor windings are not the same.”

Take this five-question quiz to see well you understand the risks and reliability considerations behind VFD applications — and where your motor management strategy could use a tune-up.