Patents by Inventor António CARRAPATOSO

António CARRAPATOSO 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).

  • Fault current managing branch for surge-less current interruption in DC system
    Patent number: 10840699
    Abstract: A circuit breaker and fault current managing branch thereof for power transmission using Direct Current (DC) applications. A surge suppressor having DC bus terminal, transmission line terminal, and common terminal. An auxiliary branch comprises a pre-chargeable capacitor. The capacitor is charged by the DC bus before the circuit breaker is closed for operation and the capacitor is connected to be discharged to the transmission line when the circuit breaker is opened in operation, for suppressing the surge voltage across the circuit breaker. The auxiliary branch may comprise a charge sub-branch comprising a first controlled semiconductor switch for closing the charge sub-branch and charging the capacitor by the DC bus before the circuit breaker is closed. The auxiliary branch may comprise a discharge sub-branch comprising a second controlled semiconductor switch for closing the discharge sub-branch and discharging the capacitor to the transmission line when the circuit breaker is opened in operation.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: November 17, 2020
    Assignee: EFACEC ENERGIA, MÁQUINAS E EQUIPAMENTOS ELÉCTRICOS, S.A.
    Inventors: Ataollah Mokhberdoran, Nuno Silva, António Carrapatoso, Adriano Da Silva Carvalho, Helder Leite
  • FAULT CURRENT MANAGING BRANCH FOR SURGE-LESS CURRENT INTERRUPTION IN DC SYSTEM
    Publication number: 20180241202
    Abstract: A circuit breaker and fault current managing branch thereof for power transmission using Direct Current (DC) applications. A surge suppressor having DC bus terminal, transmission line terminal, and common terminal. An auxiliary branch comprises a pre-chargeable capacitor. The capacitor is charged by the DC bus before the circuit breaker is closed for operation and the capacitor is connected to be discharged to the transmission line when the circuit breaker is opened in operation, for suppressing the surge voltage across the circuit breaker. The auxiliary branch may comprise a charge sub-branch comprising a first controlled semiconductor switch for closing the charge sub-branch and charging the capacitor by the DC bus before the circuit breaker is closed. The auxiliary branch may comprise a discharge sub-branch comprising a second controlled semiconductor switch for closing the discharge sub-branch and discharging the capacitor to the transmission line when the circuit breaker is opened in operation.
    Type: Application
    Filed: August 11, 2016
    Publication date: August 23, 2018
    Applicant: EFACEC ENERGIA, MÁQUINAS E EQUIPAMENTOS ELÉCTRICOS, S.A.
    Inventors: Ataollah MOKHBERDORAN, Nuno SILVA, António CARRAPATOSO, Adriano DA SILVA CARVALHO, Helder LEITE