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