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.
Figure 1. The general arrangement of a three phase waveform.
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Close-Coupled Vertical Turbine
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Gorman-Rupp SF Series® Submersible Solids-handling Pump
3800 Series, Single Stage End Suction
Vertical Lathe
Frame-mount Centrifugal Pumps
SF Series®
Utah Lake Cascade Pump
National Pump Vertical Turbine Pumps, API 610
80 Series® Engine Driven
Ultra V Series® and UltraMate®
Bowl wear ring
Computer Numerical Control Machine (CNC) at Nickerson
Well Pump Installation
Utah Lake Cascade Pump
Vertical Lathe
Submersible Turbine Pumps
Horizontal Lathe
Custom fabrication to a large part
Model 342A Single Stage End Suction
Horizontal Lathe
Vertical Turbine Pumps, Deep Well
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Computer Numerical Control Machine (CNC) at Nickerson
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.
