Variable Speed Drives

Variable speed drives (also known as variable frequency drives or VFDs) control the frequency and voltage of an electric motor. They regulate the speed and torque of the motor by acting on the frequency (Hz) and the supply voltage. They are of great importance in industrial automation, as they optimise equipment performance while reducing energy consumption. They also have the advantage of facilitating smooth starting and stopping, reducing mechanical and thermal stress on motors and transmissions. Variable frequency drives also extend the life of equipment by reducing maintenance through precise, intelligent motor control. What's more, variable speed drives can control both synchronous and asynchronous motors, with specific differences in the way they operate. More modern versions offer advanced functions, such as flux vector control, for better management of motor torque. Discover all the Schneider variable speed drives available on One-Elec now.