Machinist at Nickerson Company running a state-of-the-art CNC machine.
Figure 1. The general arrangement of a three phase waveform.
Model 411 Horizontal Split Case
Submersible Turbine Pumps
Horizontal Lathe
Impeller wear ring
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
3800 Series, Single Stage End Suction
Well Pump Installation
Super T Series® Engine Driven
National Pump Vertical Turbine Pumps, API 610
Horizontal Lathe
Nickerson Field Crew
Vertical Turbine Pumps, Deep Well
Close-Coupled Vertical Turbine
Bowl wear ring
Bowl wear ring
Utah Lake Cascade Pump
Horizontal Lathe
Custom shapes cut from raw materials.
Computer Numerical Control Machine (CNC) at Nickerson
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
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
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.
