“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
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.
Horizontal Lathe
Vertical Lathe
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Model 342A Single Stage End Suction
Custom shapes cut from raw materials.
Schlumberger Pump Assembly
Nickerson Field Crew
Close-Coupled Vertical Turbine
Computer Numerical Control Machine (CNC) at Nickerson
380 Series Vertical Inline Pump with VFD
Impeller wear ring
Vertical Lathe
Bowl wear ring
Utah Lake Cascade Pump
Computer Numerical Control Machine (CNC) at Nickerson
Model 411 Horizontal Split Case
Bowl wear ring
Horizontal Lathe
3800 Series, Single Stage End Suction
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Figure 1. The general arrangement of a three phase waveform.
Well Pump Installation
Submersible Turbine Pumps
Machinist at Nickerson Company running a state-of-the-art CNC machine.
SF Series®
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.
