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.
Utah Lake Cascade Pump
Impeller wear ring
Vertical Turbine Pumps, Deep Well
Model 411 Horizontal Split Case
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.
Ultra V Series® and UltraMate®
Impeller wear ring
National Pump Vertical Turbine Pumps, API 610
Vertical Lathe
3800 Series, Single Stage End Suction
Nickerson Field Crew
Horizontal Lathe
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Model 342A Single Stage End Suction
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.
Utah Lake Cascade Pump
Figure 1. The general arrangement of a three phase waveform.
Bowl wear ring
Submersible Turbine Pumps
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
