Variable frequency drives (VFDs) have become a preferred method of process control for electric motor driven equipment ranging from vertical water pumps to centrifugal air fans. The following is a basic discussion of risks of using a VFD with direct driven centrifugal fans and methods of mitigating those risks to maintain equipment reliability.
- David Sheffler
- IVC Technologies
Studies show that 50 to 70% of all equipment failures can be directly traced to a lubrication-related issue, most of which can be found with oil analysis.
The simulator of measuring system (Lead Phase or Lag Phase), phase convention (Rotating Scale or Fixed Scale) and scale direction (Contrary to Rotation or Same of Rotation), shows, during rotation, for the first turn the tachometer event...
- Jose Mendez Adriani
- Central University of Venezuela
Businesses invest millions of dollars in what they believe will be a fail-safe maintenance program for their electric motors. Regular tests are scheduled for each motor; engineers dutifully record the data when required and then move on to the next motor.
- Noah Bethel
- PdMA Corporation
Condition-based monitoring (CbM) is the Industry 4.0 equivalent of wearable fitness devices. With the explosion of connectivity comes the opportunity to observe the physical world like never before and to see physical processes in action, in real time, in fine detail. In industrial....
- Stuart Servis
- Analog Devices
Yelo’s manufacturing plant was custom-built to enable it to produce the highest quality vegetable oil and animal feed using only mechanical processes.
Asset availability and reliability is critical to the business and the management team understood that adopting a ‘run-to-failure’ reactive maintenance approach would be both costly and inefficient.
- Frederic Thomas
- AVT Reliability
The Intelligent Condition Monitoring Box also known as iCOMOX is an open-source sensor fusion platform designed for Condition-based Monitoring (CbM) applications. The iCOMOX can measure vibration, sound, temperature, and magnetic field displacement. This device can...
- Richard Matsick
- Analog Devices, Inc
Industry 4.0 applications generate a huge volume of complex data—big data. This naturally increases the potential for generating added value along the entire value chain. Only with relevant, high quality, and useful data—smart data—can the associated economic potential be unfolded...
- Dzianis Lukashevich