How electronic speed control drives, adjustable frequency drives, magnetic drives and steam turbine drives work to achieve true variable speed control.
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.
VFDs can extend life by reducing wear on equipment and motors.
Consider these methods to help protect systems from high-frequency current damage.
Understand these concepts before starting squirrel cage induction motors.
Harmful common mode shaft voltages can damage motor bearings and cause premature machine failure.
Separation can improve delivery time and allow exact replacement.
Furnace blower motor design transformation was fueled by new end user and government standards.
This technology can help reduce blockages, detect damaged equipment and avoid dry runs, thus reducing motor stress.
Understand accessories, sizing, electrical performance and color.
What makes motors standard and what could make them special?
Most pumps are driven by AC induction motors.
Motion leader describes upcoming challenges in motors and drives.
Avoid operational problems during installation and startup
How fluid drive, eddy current drive and wound rotor motors work to achieve true variable speed control.
New requirements in 2020 offer opportunities for improving system function.
Select enclosures based on the environment and conditions of the installation.
How new digital technologies enhance reliability.
Failures could increase the chance of an arc flash hazard and require more downtime for repairs.
Motors and drives work together in various ways.
Ground fault detectors provide economic efficiency by improving operational availability.