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.
Well Pump Installation
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Computer Numerical Control Machine (CNC) at Nickerson
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Ultra V Series® and UltraMate®
Horizontal Lathe
Vertical Lathe
Computer Numerical Control Machine (CNC) at Nickerson
Nickerson Field Crew
Schlumberger Pump Assembly
Figure 1. The general arrangement of a three phase waveform.
Super T Series® Engine Driven
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Impeller wear ring
Model 411 Horizontal Split Case
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.
