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.
Submersible Turbine Pumps
3800 Series, Single Stage End Suction
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Vertical Lathe
Computer Numerical Control Machine (CNC) at Nickerson
Well Pump Installation
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Bowl wear ring
Bowl wear ring
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Close-Coupled Vertical Turbine
Model 342A Single Stage End Suction
Custom fabrication to a large part
Horizontal Lathe
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Impeller wear ring
380 Series Vertical Inline Pump with VFD
Utah Lake Cascade Pump
Model 411 Horizontal Split Case
Impeller wear ring
SF Series®
80 Series® Engine Driven
Computer Numerical Control Machine (CNC) at Nickerson
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.
Figure 1. The general arrangement of a three phase waveform.
Nickerson Field Crew
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
