4/4/2023 0 Comments Vfd install milling machine![]() ![]() However, if the existing motor is installed in an application that has constant torque (such as a reciprocating compressor or pump, mill, or extruder), then the same load will remain on the motor as the speed is reduced, and the motor will overheat. If the load is a standard variable torque load, such as a fan or pump (load on the motor decreases exponentially with speed), additional cooling may not be needed. When the motor is operated with a VFD, the motor shaft speed (motor speed) decreases and will cause decreased cooling from the shaft-driven fan. Most motors running across the line depend on an internal, shaft-driven fan for cooling. This article details some of the factors to consider when installing a medium-voltage (MV) VFD on an existing MV motor in order to ensure safe and efficient operations. ![]() When a variable frequency drive (VFD) is added to an existing system, many potential problems may arise. ![]()
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