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.
Computer Numerical Control Machine (CNC) at Nickerson
Vertical Turbine Pumps, Deep Well
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 411 Horizontal Split Case
Impeller wear ring
Ultra V Series® and UltraMate®
Utah Lake Cascade Pump
Frame-mount Centrifugal Pumps
Computer Numerical Control Machine (CNC) at Nickerson
Horizontal Lathe
Horizontal Lathe
Custom fabrication to a large part
Model 342A Single Stage End Suction
National Pump Vertical Turbine Pumps, API 610
Well Pump Installation
Close-Coupled Vertical Turbine
Submersible Turbine Pumps
Figure 1. The general arrangement of a three phase waveform.
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
