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.
Submersible Turbine Pumps
Utah Lake Cascade Pump
Impeller wear ring
Horizontal Lathe
Figure 1. The general arrangement of a three phase waveform.
Custom shapes cut from raw materials.
Horizontal Lathe
Vertical Lathe
Utah Lake Cascade Pump
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Bowl wear ring
380 Series Vertical Inline Pump with VFD
Custom fabrication to a large part
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Vertical Turbine Pumps, Deep Well
Computer Numerical Control Machine (CNC) at Nickerson
Computer Numerical Control Machine (CNC) at Nickerson
National Pump Vertical Turbine Pumps, API 610
Frame-mount Centrifugal Pumps
Schlumberger Pump Assembly
Well Pump Installation
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.
