Machinist at Nickerson Company running a state-of-the-art CNC machine.
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.
Bowl wear ring
Frame-mount Centrifugal Pumps
Model 342A Single Stage End Suction
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
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.
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
80 Series® Engine Driven
Figure 1. The general arrangement of a three phase waveform.
Impeller wear ring
Submersible Turbine Pumps
380 Series Vertical Inline Pump with VFD
Vertical Turbine Pumps, Deep Well
Utah Lake Cascade Pump
Horizontal Lathe
Bowl wear ring
Computer Numerical Control Machine (CNC) at Nickerson
Gorman-Rupp SF Series® Submersible Solids-handling Pump
3800 Series, Single Stage End Suction
Nickerson Field Crew
Computer Numerical Control Machine (CNC) at Nickerson
