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:
Oct. 07, 2025
Filed:
Nov. 05, 2021
Safran Electrical & Power, Blagnac, FR;
Vincent Chaperon, Blagnac, FR;
Damien Elmaalouf, Blagnac, FR;
SAFRAN ELECTRICAL & POWER, Blagnac, FR;
Abstract
A device for monitoring and protecting equipment powered by at least one solid-state power controller (SSPC) including at least one current measurement circuit having a current measuring transformer receiving at a primary at least three phases of a three-phase power supply of the equipment, a measuring and testing module including a controller for measuring a current at a secondary I, representative of a differential current Iat the primary, and a channel for injecting current into said transformer, the channel having a current Igenerator controlled by an output of the controller and connected to an injection winding on the transformer, the injection winding including a number of turns Nso that the current Iproduces in said measurement windings a test current Iof said secondary in the absence of current at the primary.