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.
Ultra V Series® and UltraMate®
Bowl wear ring
Horizontal Lathe
80 Series® Engine Driven
Utah Lake Cascade Pump
Model 342A Single Stage End Suction
Vertical Lathe
Figure 1. The general arrangement of a three phase waveform.
Well Pump Installation
Super T Series® Engine Driven
National Pump Vertical Turbine Pumps, API 610
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
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.
Close-Coupled Vertical Turbine
Utah Lake Cascade Pump
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Vertical Turbine Pumps, Deep Well
Horizontal Lathe
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Gorman-Rupp SF Series® Submersible Solids-handling Pump
Frame-mount Centrifugal Pumps
Computer Numerical Control Machine (CNC) at Nickerson
Model 411 Horizontal Split Case
Horizontal Lathe
SF Series®
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.
Bowl wear ring
Schlumberger Pump Assembly
Computer Numerical Control Machine (CNC) at Nickerson
