Patents by Inventor Xavier Charpentier

Xavier Charpentier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus for detecting insulation defects in devices connected into power distribution networks
    Patent number: 5973500
    Abstract: An apparatus for detecting an insulation defect in at least one device connected into an electrical power transmission or distribution network and having: leakage current measuring sensors (10) arranged on a ground line (19a, 19b, 19c) of the device; a measurement signal analogue/digital converter (58, 60); and a signal processing unit (14) including a comparison circuit (75) for comparing the measurement signal with a maximum threshold value representative of the maximum value of the leakage current permitted to flow in the ground line (19a, 19b, 19c), to obtain an insulation defect signal. The processing unit (14) includes a discriminator circuit (76) for discriminating, in the insulation defect signal, between a component of a useful signal and a component of a disturbance signal.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: October 26, 1999
    Assignee: Electricite De France-Service National
    Inventors: Christophe Moreau, Christophe Boisseau, Xavier Charpentier