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.
Impeller wear ring
Frame-mount Centrifugal Pumps
Impeller wear ring
Well Pump Installation
Vertical Turbine Pumps, Deep Well
Vertical Lathe
National Pump Vertical Turbine Pumps, API 610
Horizontal Lathe
Figure 1. The general arrangement of a three phase waveform.
Bowl wear ring
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.
Computer Numerical Control Machine (CNC) at Nickerson
Custom shapes cut from raw materials.
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Ultra V Series® and UltraMate®
Schlumberger Pump Assembly
Utah Lake Cascade Pump
SF Series®
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Super T Series® Engine Driven
Model 411 Horizontal Split Case
Horizontal Lathe
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Close-Coupled Vertical Turbine
Computer Numerical Control Machine (CNC) at Nickerson
