Most pumps are driven by AC induction 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.
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.
Early inspection revealed a winding fault in one municipal utility district.
This newer technology excels at the high duty cycle, low speed applications that can cause problems with other motors.
Use a systems approach and updated technology for better operation.
Power quality and grounding are a couple of things to consider for optimal motor and system operation.
Start with NEMA standards, then consider other conditions.
Changing motor performance can impact interconnecting equipment.
Learn how to protect employees and equipment.
Extra precautions are needed in combustible environments such as grain handling and processing facilities.