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