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.
Patent No.:
Date of Patent:
Jun. 03, 2014
Filed:
May. 17, 2012
Pierre Saint-chamant, Toulouse, FR;
Grigori Marguin, Toulouse, FR;
Pierre Henrard, Cazeres, FR;
Airbus Operations S.A.S., Toulouse, FR;
Abstract
The invention relates to a method for protecting a multi-phase autotransformer for an aircraft, including the steps of receiving () values of current output from (I, I) the first and second phases and a value of current input into (I) the second phase; determining (), from these received values of the second phase, a value of current representative of the operation (I) of the second phase; determining (), as a function of this determined value and of the value of current output from (I) the first phase, a value representative of the homopolar current (I) flowing in the first phase; comparing () this value of homopolar current (I) with a first predetermined threshold value (S1) at least during a first predetermined period (D1); and controlling () the values of currents input into (I, I) and/or output from (I, I) the phases as a function of the said first comparison.