CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Ultra V Series® and UltraMate®
National Pump Vertical Turbine Pumps, API 610
380 Series Vertical Inline Pump with VFD
SF Series®
Impeller wear ring
Horizontal Lathe
Submersible Turbine Pumps
Utah Lake Cascade Pump
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.
Computer Numerical Control Machine (CNC) at Nickerson
Schlumberger Pump Assembly
Custom fabrication to a large part
Vertical Turbine Pumps, Deep Well
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.
Model 411 Horizontal Split Case
Frame-mount Centrifugal Pumps
Super T Series® Engine Driven
Computer Numerical Control Machine (CNC) at Nickerson
Vertical Lathe
Vertical Lathe
Model 342A Single Stage End Suction
Custom shapes cut from raw materials.
Nickerson Field Crew
Bowl wear ring
3800 Series, Single Stage End Suction
Figure 1. The general arrangement of a three phase waveform.
