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