Quickly estimating the energy savings available by installing variable speed drives to motors is simple as their power consumption is governed by the cube law (see earlier article). In the example given, a 10% speed reduction saves 27% of the running cost. Energy savings calculators are also available for more complex applications, but flow applications are particularly suited to this type of […]
Torque is the measure of the turning force of an object about an axis. When applying a variable speed drive to a motor application it is critical to consider the torque requirement of the load. Variable speed drives manufacturers generally assign their drives into one of three categories according to their torque and power […]
Torque is the measure of the turning force of an object about an axis. When applying a variable speed drive to a motor application it is critical to consider the torque requirement of the load. Variable speed drives manufacturers generally assign their drives into one of three categories according to their torque and power […]
An introduction on how the installation of variable frequency drives saves significant sums of money when applied to fan and pump motors, and how you can convince your manager. Let’s start with an analogy: Imagine running a car at full throttle and controlling the speed by using the brakes. In addition to the noise, […]
It depends who’s asking, and what the application is, but generally speaking the answer is no. Most inverter drives are designed for use with three phase motors. If you have a high torque application like a lathe, or are using pulleys or gearboxes then you will need a three phase motor. Fitting a […]