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
Vertical Lathe
Horizontal Lathe
National Pump Vertical Turbine Pumps, API 610
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Custom shapes cut from raw materials.
Super T Series® Engine Driven
Ultra V Series® and UltraMate®
Close-Coupled Vertical Turbine
80 Series® Engine Driven
Submersible Turbine Pumps
Vertical Lathe
Impeller wear ring
Frame-mount Centrifugal Pumps
Schlumberger Pump Assembly
Computer Numerical Control Machine (CNC) at Nickerson
Bowl wear ring
Figure 1. The general arrangement of a three phase waveform.
Custom fabrication to a large part
Bowl wear ring
Impeller wear ring
Vertical Turbine Pumps, Deep Well
Horizontal Lathe
3800 Series, Single Stage End Suction
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
Utah Lake Cascade Pump
Utah Lake Cascade Pump
Nickerson Field Crew
Computer Numerical Control Machine (CNC) at Nickerson
Gorman-Rupp SF Series® Submersible Solids-handling Pump
