Figure 1. The general arrangement of a three phase waveform.
Computer Numerical Control Machine (CNC) at Nickerson
Impeller wear ring
SF Series®
Bowl wear ring
Horizontal Lathe
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Nickerson Field Crew
Well Pump Installation
Horizontal Lathe
Horizontal Lathe
Utah Lake Cascade Pump
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
Vertical Lathe
Frame-mount Centrifugal Pumps
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Bowl wear ring
Ultra V Series® and UltraMate®
80 Series® Engine Driven
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.
