Figure 2. A simple sine wave with a period of 360° and an amplitude of 1. In single phase power the x-intercepts are 180° from each other. A full period is 360°. A single phase motor has a crest approximately every 16.5 milliseconds giving the motors a tendency to vibrate more, which may contribute to a shortened bearing life.
Custom fabrication to a large part
SF Series®
Nickerson Field Crew
Horizontal Lathe
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Model 411 Horizontal Split Case
Model 342A Single Stage End Suction
Well Pump Installation
Figure 3. Three phase power has three identical sine waves overlapping at an offset of 2π/3 radians or 120°. When one phase reaches an x-intercept or node the next phase is only 30° and approximately 5.6 milliseconds from reaching its crest.
Frame-mount Centrifugal Pumps
80 Series® Engine Driven
380 Series Vertical Inline Pump with VFD
Vertical Lathe
Computer Numerical Control Machine (CNC) at Nickerson
Impeller wear ring
Impeller wear ring
Computer Numerical Control Machine (CNC) at Nickerson
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
