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.
Horizontal Lathe
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
SF Series®
Model 411 Horizontal Split Case
Vertical Lathe
Custom fabrication to a large part
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Horizontal Lathe
Vertical Lathe
Impeller 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.
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Horizontal Lathe
Impeller wear ring
Well Pump Installation
Submersible Turbine Pumps
80 Series® Engine Driven
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Super T Series® Engine Driven
Utah Lake Cascade Pump
Close-Coupled Vertical Turbine
Computer Numerical Control Machine (CNC) at Nickerson
Nickerson Field Crew
Computer Numerical Control Machine (CNC) at Nickerson
Utah Lake Cascade Pump
Schlumberger Pump Assembly
Ultra V Series® and UltraMate®
Vertical Turbine Pumps, Deep Well
3800 Series, Single Stage End Suction
Model 342A Single Stage End Suction
Figure 1. The general arrangement of a three phase waveform.
Frame-mount Centrifugal Pumps
Bowl wear ring
380 Series Vertical Inline Pump with VFD
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
