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.
Computer Numerical Control Machine (CNC) at Nickerson
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Frame-mount Centrifugal Pumps
Model 411 Horizontal Split Case
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Computer Numerical Control Machine (CNC) at Nickerson
Horizontal Lathe
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Impeller wear ring
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Submersible Turbine Pumps
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Nickerson Field Crew
80 Series® Engine Driven
Model 342A Single Stage End Suction
Vertical Lathe
National Pump Vertical Turbine Pumps, API 610
Figure 1. The general arrangement of a three phase waveform.
Bowl wear ring
Horizontal Lathe
Custom shapes cut from raw materials.
380 Series Vertical Inline Pump with VFD
Bowl wear ring
Vertical Turbine Pumps, Deep Well
3800 Series, Single Stage End Suction
Well Pump Installation
Ultra V Series® and UltraMate®
Utah Lake Cascade Pump
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.
