This process is called dynamic braking and such a resistor is called a dynamic braking resistor. Dynamic braking resistors are used with ac vfds to produce a braking torque in the motor during overhauling conditions. Dynamic Brake Resistors For Ac Inverter Drives Dynamic Braking Resistors Resistors For Overhauling Vfd Beckhoff Information System English Dynamic braking resistors are used on ac variable frequency drives vfds to dissipate energy that is produced in the motor as the drive provides braking torque to stop the motor. What is a brake resistor . It is termed rheostatic if the generated electrical power is dissipated as heat in brake grid resistors and regenerative if the power is returned to the supply line. Usually they have a ceramic core are fully welded and are encased in a frame to establish a safe distance from other parts. The brake resistors...
