Early inspection revealed a winding fault in one municipal utility district.
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.
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.