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

摘要

A method for determining proper wiring of multiple three-phase motors in a refrigeration system is disclosed. The method may include energizing a plurality of three-phase motors with a first input phase rotation and recording performance data, energizing the plurality of three-phase motors with a second input phase rotation and recording the performance data, evaluating the performance data and determining if each of three-phase motors is properly wired, operating the refrigeration system in a normal mode if all of the three-phase motors are properly wired, or operating the refrigeration system in a less efficient mode if at least one three-phase motor is improperly wired.

主权项

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; andoperate 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.