Patents by Inventor Christine Clausse

Christine Clausse 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).

  • Device for determining the primary current of a current transformer comprising saturation correction means
    Patent number: 6611136
    Abstract: The device comprises modelling means representative of an inverse model of the current transformer. These modelling means receive on input the instantaneous values of the secondary current measured in a first secondary winding of the current transformer and, by means of an integrator, the integral of the secondary voltage measured at the terminals of a secondary winding of the current transformer. The modelling means supply on output the instantaneous values of the associated primary current, corrected in case of saturation of the transformer. The secondary voltage can be supplied by the first secondary winding or by an additional second secondary winding, arranged around the first one.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: August 26, 2003
    Assignee: Schneider Electric Industries SA
    Inventors: Christine Clausse, Benoît Leprettre, Marc Pouillot, Paul Pianu
  • Device for determining the primary current of a current transformer comprising saturation correction means
    Publication number: 20020074991
    Abstract: The device comprises modelling means representative of an inverse model of the current transformer. These modelling means receive on input the instantaneous values of the secondary current measured in a first secondary winding of the current transformer and, by means of an integrator, the integral of the secondary voltage measured at the terminals of a secondary winding of the current transformer. The modelling means supply on output the instantaneous values of the associated primary current, corrected in case of saturation of the transformer. The secondary voltage can be supplied by the first secondary winding or by an additional second secondary winding, arranged around the first one.
    Type: Application
    Filed: December 7, 2001
    Publication date: June 20, 2002
    Applicant: SCHNEIDER ELECTRIC INDUSTRIES SA.
    Inventors: Christine Clausse, Benoit Leprettre, Marc Pouillot, Paul Pianu
  • Device for preventive detection of faults with identification of the type of load
    Patent number: 6081123
    Abstract: During a first test phase, the device, after detecting the presence of a load, enables the nature of the load to be identified. For this, a control circuit connects the load to an AC main power system, while limiting the current in the load. The device measures several tens of samples of instantaneous values of the load voltage and current during a limited number of half-waves of an AC sine signal and determines the load impedance and the current/voltage phase shift. These characteristics, possibly with complementary parameters derived from the voltage and current measurements, enable the nature of the load to be identified. During a second test phase, the control circuit applies pulses limited in voltage to the load and detects possible short-circuit, differential or overload faults.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: June 27, 2000
    Assignee: Schneider Electric SA
    Inventors: Jean-Marc Kasbarian, Simon Tian, Pascal Hanchin, Christine Clausse