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Variable Speed Drives, or VSDs, are ideal for optimising energy use in modern HVAC, pumping, and process control systems. VSDs regulate motor speed by adjusting the frequency and voltage supplied to an electric motor. This allows for highly precise speed control to match system output exactly to moment-by-moment demand.
For HVAC systems, VSDs reduce fan energy consumption by up to 50-70% by eliminating waste from over-ventilation and continuous full-speed fan operation. In pumping systems, VSDs can save even more energy - up to 80% - through optimised fluid flow and pressure management. Reducing motor speed by just 20% can yield nearly 50% in energy savings.
We offer VSD solutions
With years of experience, MBD Automation has the capabilities and expertise for all of your VSD needs. We can select the right sized VSD, integrate it into new or existing systems, or replace outdated VSDs. Contact us today to discuss optimising the efficiency of your facility through advanced VSD technology.
VSDs offer substantial energy savings by matching motor speed to load requirements. This optimises system output, reduces waste from over-ventilation or excess pumping, and can yield 50-80% energy savings, depending on the application. VSDs also provide accurate speed control and soft motor starting/stopping.
For fans and pumps, the affinity laws show that small reductions in speed lead to large reductions in power consumption.
Common VSD applications include HVAC ventilation, pumps systems, process equipment, conveyors, compressors, and any system requiring adjustable speed control of AC induction motors.
In many cases, yes. We assess existing motors, conduct retrofit analysis, and install modern VSDs on old pumps, fans, and process equipment. This allows older systems to capture the benefits of speed optimisation and energy savings.
Our VSD solutions easily integrate with modern building automation and energy management systems through analog/digital signals, networks, and communication protocols.
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