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