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Method for determining proper wiring of multiple 3 phase motors in a single system

  • US 9,228,767 B2
  • Filed: 09/07/2011
  • Issued: 01/05/2016
  • Est. Priority Date: 09/15/2010
  • Status: Active Grant
First Claim
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1. A three-phase component wiring detection apparatus for use with a system having at least a first three-phase component and a second three-phase component, the apparatus comprising:

  • at least one terminal configured to operatively couple to the first three-phase component and the second three-phase component; and

    a controller operatively coupled to the terminal, the controller configured to;

    determine a phase rotation for each of the three-phase components;

    operate the system in a normal mode when the phase rotation for each of the three-phase components is the same; and

    operate the system in a less efficient mode when the phase rotation for the first three-phase component is different from the second three-phase component, the less efficient mode including determining a priority phase rotation for the system wherein one of the first three-phase component and the second three-phase component is assigned highest priority and operating the system in the priority phase rotation wherein the three-phase component assigned highest priority operates properly and the other three-phase component operates in reverse.

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