Variable Frequency Drives (VFDs)—Technology drives huge Power Savings

By | December 8, 2017

Most motors are set up to operate under peak load production conditions. However, continuously operating motors at their peak load obviously results in higher power consumption and costs. A VFD controls the frequency and voltage supplied to a motor to match the load that the motor has to drive. At median loads, when the motor can be operated at lower speeds to meet the production target of a machine, a VFD is used to control its speed.

Say a motor gets input alternating current at 60 hertz. Merely reducing this frequency by 10% can result in approximately 30% savings in power. While these calculations are complex, VFDs ensure that the power supplied to the motor is closely controlled in relation to the actual speed at which the motor needs to operate in a given production load scenario.

Because a VFD reduces or increases power according to production load requirements, you can realise large savings in power by using this technology.

An application of this technology can be seen in a Centralized Filtration System where power to the motorised pumps are controlled according to the fluid volumes that have to be filtered. A carefully designed and implemented central filtration system can save up to 50% on your power bills, paying back on your investments quickly.

For more information on VFDs, please click here.

Why Redundant Components and Sub-systems Consume More Power

Machine-specific industrial filtration systems are commonly used in manufacturing plants. However, such options are not optimal with regard to power consumption and space utilisation, both of which can affect the productivity and profitability of your manufacturing operation. This occurs because several smaller pumps are less efficient compared to a single large pump operating under controlled power inputs corresponding to variable load. Smaller filtration pumps also take up more space and are less effective compared to centralised industrial filters, resulting in loss of production area that can be used for core manufacturing and quality-related activities as well as poor quality industrial fluids that can result in machining related defects. Higher quality reused industrial fluids also result in higher operating efficiency of production machinery, thereby further reducing costs—not to mention costs saved by extending coolant life by more than ten times.

How to us atmospheric pressure for Filtration

In a self-cleaning filter, the filtration medium is constantly rotated to ensure effective filtration and reduce costs through filtration medium reuse. Here, a backwash mechanism is used to clean the media. A large pressure differential between atmospheric pressure and pressure inside the self-cleaning filter is used to power the back wash and ensure that a clean filtration medium is available at all times. This mechanism saves power considerably by eliminating the need to power the back wash.

Veeraja believes in providing the latest technology to you so that you focus on your core deliverables, and not ancillary equipment, while saving big on power and maintenance costs!
For more details talk to our engineers 

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