Figure 1. The general arrangement of a three phase waveform.
Model 411 Horizontal Split Case
Vertical Turbine Pumps, Deep Well
Frame-mount Centrifugal Pumps
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.
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
3800 Series, Single Stage End Suction
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Well Pump Installation
National Pump Vertical Turbine Pumps, API 610
Impeller wear ring
Bowl wear ring
Utah Lake Cascade Pump
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Horizontal Lathe
Vertical Lathe
Computer Numerical Control Machine (CNC) at Nickerson
Ultra V Series® and UltraMate®
Vertical Lathe
380 Series Vertical Inline Pump with VFD
Schlumberger Pump Assembly
Impeller wear ring
Utah Lake Cascade Pump
Close-Coupled Vertical Turbine
Super T Series® Engine Driven
Computer Numerical Control Machine (CNC) at Nickerson
Submersible Turbine Pumps
Model 342A Single Stage End Suction
80 Series® Engine Driven
Horizontal Lathe
Gorman-Rupp SF Series® Submersible Solids-handling 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.
Machinist at Nickerson Company running a state-of-the-art CNC machine.
