Patents by Inventor Zixia Sang

Zixia Sang 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).

  • Arc extinguishing hybrid transfer switch and switching method
    Patent number: 8508890
    Abstract: The present invention discloses an arc extinguishing hybrid transfer switch, including a mechanical switch and a first thyristor branch connected in parallel with the first contact branch of the mechanical switch, wherein the first thyristor branch includes a first thyristor, a second thyristor, a first polarized capacitor and a second polarized capacitor, the first thyristor and the first polarized capacitor are connected in series in the same direction, the second thyristor and the second polarized capacitor are connected in series in the same direction, and a branch consisted of the first thyristor and the first polarized capacitor and a branch consisted of the second thyristor and the second polarized capacitor are connected in parallel in reverse direction. The invention further discloses a switching method for the arc extinguishing hybrid transfer switch for implementing an arc extinguishing of a mechanical switch.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: August 13, 2013
    Assignee: ASCO Power Technologies, L.P.
    Inventors: Dapeng Zheng, Frank Heerdt, Zixia Sang
  • ARC EXTINGUISHING HYBRID TRANSFER SWITCH AND SWITCHING METHOD
    Publication number: 20110292551
    Abstract: The present invention discloses an arc extinguishing hybrid transfer switch, including a mechanical switch and a first thyristor branch connected in parallel with the first contact branch of the mechanical switch, wherein the first thyristor branch includes a first thyristor, a second thyristor, a first polarized capacitor and a second polarized capacitor, the first thyristor and the first polarized capacitor are connected in series in the same direction, the second thyristor and the second polarized capacitor are connected in series in the same direction, and a branch consisted of the first thyristor and the first polarized capacitor and a branch consisted of the second thyristor and the second polarized capacitor are connected in parallel in reverse direction. The invention further discloses a switching method for the arc extinguishing hybrid transfer switch for implementing an arc extinguishing of a mechanical switch.
    Type: Application
    Filed: March 18, 2011
    Publication date: December 1, 2011
    Applicant: ASCO POWER TECHNOLOGIES, L.P.
    Inventors: Dapeng Zheng, Frank Heerdt, Zixia Sang