Figure 1. The general arrangement of a three phase waveform.
Model 411 Horizontal Split Case
Horizontal Lathe
3800 Series, Single Stage End Suction
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Nickerson Field Crew
Vertical Turbine Pumps, Deep Well
National Pump Vertical Turbine Pumps, API 610
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.
Bowl 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.
Frame-mount Centrifugal Pumps
Vertical Lathe
Custom fabrication to a large part
Ultra V Series® and UltraMate®
Utah Lake Cascade Pump
Impeller wear ring
SF Series®
Machinist at Nickerson Company running a state-of-the-art CNC machine.
