Figure 1. The general arrangement of a three phase waveform.
Computer Numerical Control Machine (CNC) at Nickerson
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Horizontal Lathe
Horizontal Lathe
National Pump Vertical Turbine Pumps, API 610
Schlumberger Pump Assembly
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Horizontal Lathe
Frame-mount Centrifugal Pumps
80 Series® Engine Driven
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.
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.
380 Series Vertical Inline Pump with VFD
Vertical Lathe
Close-Coupled Vertical Turbine
Submersible Turbine Pumps
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
3800 Series, Single Stage End Suction
Super T Series® Engine Driven
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 Lathe
Impeller wear ring
Gorman-Rupp SF Series® Submersible Solids-handling Pump
