Figure 1. The general arrangement of a three phase waveform.
Impeller wear ring
SF Series®
Model 411 Horizontal Split Case
Vertical Lathe
Bowl wear ring
Custom fabrication to a large part
“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.
Close-Coupled Vertical Turbine
Impeller wear ring
Computer Numerical Control Machine (CNC) at Nickerson
Utah Lake Cascade Pump
Schlumberger Pump Assembly
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Nickerson Field Crew
80 Series® Engine Driven
Bowl wear ring
Vertical Lathe
Horizontal Lathe
Vertical Turbine Pumps, Deep Well
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
380 Series Vertical Inline Pump with VFD
Super T Series® Engine Driven
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.
National Pump Vertical Turbine Pumps, API 610
Utah Lake Cascade Pump
Machinist at Nickerson Company running a state-of-the-art CNC machine.
