A variable speed drive is a simple, reliable solution that controls the speed and torque of an AC motor by converting fixed frequency and voltage input to a variable frequency and voltage output. It optimises system performance by matching the load with the correct speed.
One of the most notable features of a variable speed drive is its ability to save energy. The amount of energy saved depends on the nature and variability of the load and total operating hours. Aside from this, there are many other great benefits. Some of these include:
- reduction in maximum power demand and associated charges
- reduced stress on system components
- accurate system control of parameters such as pressure, flow and temperature
- improved workplace safety and amenity, through reduced heat and noise levels
- In pumping systems, a variable speed drive controls the flow of energy and ensures that systems aren’t running at full speed unnecessarily
Variable Speed Drive Usage
Because of their high efficiency and reliability, variable speed drives are increasingly being used to operate high-speed compressors and pumps. A large proportion of these can be as much as 20% oversized for the application they are used in.
When these are operated at a constant speed, a significant amount of the power consumed by the motor is wasted, costing the users considerable amounts of money and creating unnecessary CO2 emissions.
Matching the speed of pumps and fans to process demands with a variable speed drive ensures that the motor will always operate at the optimal speed to deliver exactly the right output with minimal waste.
Variable Speed Drive Price
Depending on the size and brand, a variable speed drive cost will differ. The best would be to contact the experts directly for more information. EP Normand is a specialist variable speed drive company that supplies user-friendly and easily programmable products.