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.
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
National Pump Vertical Turbine Pumps, API 610
Vertical Turbine Pumps, Deep Well
Bowl wear ring
Vertical Lathe
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Computer Numerical Control Machine (CNC) at Nickerson
3800 Series, Single Stage End Suction
Custom fabrication to a large part
Model 411 Horizontal Split Case
Close-Coupled Vertical Turbine
Frame-mount Centrifugal Pumps
SF Series®
Bowl wear ring
Utah Lake Cascade Pump
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Well Pump Installation
380 Series Vertical Inline Pump with VFD
Vertical Lathe
Nickerson Field Crew
Impeller wear ring
Submersible Turbine Pumps
Horizontal Lathe
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.
Model 342A Single Stage End Suction
Horizontal Lathe
Horizontal Lathe
Ultra V Series® and UltraMate®
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Computer Numerical Control Machine (CNC) at Nickerson
Figure 1. The general arrangement of a three phase waveform.
