VFDs are used to control the speed of both induction and synchronous motors.
Motors
Motors are the most common source of power used by pumping systems. This technology is heavily regulated. Pumps by themselves are not variable speed, an option that many systems need to operate with peaks and ebbs during the run cycle, such as power generation. The addition of a variable frequency drive (VFD) gives it that capability.
Learn how to protect your pump motors from damage.
Follow these simple steps for preseason preparation.
Electromechanical VSDs can provide high efficiency for high-power, high-speed pumps.
The complexity of pairing a motor with a VFD is a key point to consider, along with torque.
Understand how this data is presented and how to make it become clear.
The process should start with the basics of visual inspection, then progress to checking other aspects.
See the best fits among stiff or flexible shafts for motor operation.
Construction, contaminants and choosing the right bearings can all affect an aerator motor.
Motors are delivering more value to pump OEMs with integrated VFDs and through more connectivity.
Smart variable speed drives offer an efficient and cost-effective method of prevention.
Poor power factor can lead to inefficiencies at wastewater treatment plants.
These motor systems can run at a synchronous speed, providing improved hydraulic performance.
As nonflushable wipes become more of a nuisance, anti-clogging technology steps in.
Ensure the right solution is specified when looking for plugs and receptacles for motor applications.
Emerging technologies, frame sizes part of motor hot topics at conference.
Consider advantages and disadvantages for enclosures of motors at 3,000 horsepower or higher.
Users have opportunities to improve efficiency and maximize life cycle with smarter drives.
Understand challenges and common pitfalls in sourcing electric motors for industrial applications, and find a more straightforward path.
How wide-bandgap transistors are making waves in the industry.
New product design requirements may make some motors obsolete.
In part two of this two part series, Jim Elsey discusses potential issues with variable frequency drives.