Patents by Inventor Fabrizio Negri

Fabrizio Negri 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).

  • HIGH VOLTAGE INSTRUMENT TRANSFORMER AND METHOD FOR PARTIAL DISCHARGE RECOGNITION
    Publication number: 20230290566
    Abstract: A high voltage instrument transformer includes a measuring assembly and isolator, with at least one sensor for partial discharge measurements. A method for partial discharge recognition in high voltage instrument transformers includes a detection of a signal from at least one sensor for partial discharge measurements, particularly a Transient Earth Voltage sensor.
    Type: Application
    Filed: July 17, 2020
    Publication date: September 14, 2023
    Applicant: Siemens Energy Global GmbH & Co. KG
    Inventor: Fabrizio Negri
  • METHOD FOR PARTIAL DISCHARGE RECOGNITION IN HIGH VOLTAGE APPLICATIONS AND UNIT USING THE METHOD
    Publication number: 20230258706
    Abstract: A method for partial discharge recognition in high voltage applications and a high voltage unit using the method, includes the steps of detecting a signal, transforming the signal from time to frequency domain, cutting frequencies above a defined threshold, and retransform the truncated signal from frequency to time domain. The information content of detected and truncated signals is determined and compared.
    Type: Application
    Filed: July 17, 2020
    Publication date: August 17, 2023
    Applicant: Siemens Energy Global GmbH & Co. KG
    Inventor: Fabrizio Negri
  • INSTRUMENT TRANSFORMER AND METHOD TO ISOLATE PARTS
    Publication number: 20220319770
    Abstract: An instrument transformer for high current and/or high voltage conversion has a housing and at least an active part, which is electrically insulated by an isolation material. The isolation material includes particles. A method for the instrument transformer includes the filling of a housing of the instrument transformer with particles, particularly with particles of paper material and/or cellulose, which were impregnated by an insulating fluid, particularly mineral oil and/or a synthetic oil, and/or ester, particularly vegetable esters.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 6, 2022
    Inventors: Fabrizio Negri, Dario Santinelli
  • INSTRUMENT TRANSFORMER AND METHOD TO ISOLATE PARTS
    Publication number: 20220262560
    Abstract: An instrument transformer for high current and/or high voltage conversion includes a housing and at least an active part, which is electrically insulated by an isolation material. The isolation material includes or is a paste and/or pulp. A method for producing the instrument transformer includes the filling of a housing of the instrument transformer with paste and/or pulp, particularly with paste and/or pulp including paper material and/or cellulose, solved in a solvent, particularly at least one ionic liquid.
    Type: Application
    Filed: June 12, 2020
    Publication date: August 18, 2022
    Inventor: Fabrizio Negri