The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 05, 2016

Filed:

Sep. 07, 2011
Applicants:

Gilbert B. Hofsdal, Chittenango, NY (US);

Lucy Yi Liu, Fayetteville, NY (US);

Suresh Duraisamy, Liverpool, NY (US);

Inventors:

Gilbert B. Hofsdal, Chittenango, NY (US);

Lucy Yi Liu, Fayetteville, NY (US);

Suresh Duraisamy, Liverpool, NY (US);

Assignee:

CARRIER CORPORATION, Farmington, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/54 (2006.01); H02P 5/00 (2006.01); H02P 5/46 (2006.01); F25B 49/00 (2006.01); H02P 23/00 (2006.01);
U.S. Cl.
CPC ...
F25B 49/00 (2013.01); H02P 5/00 (2013.01); H02P 23/0072 (2013.01);
Abstract

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.


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