Patents by Inventor Saeed Jazebi

Saeed Jazebi 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).

  • Patent number: 10847971
    Abstract: Embodiments of the disclosure include a fault current limiter having a first current splitting device including a primary winding and secondary winding wound around a first core, and a second current splitting device including a primary winding and a secondary winding wound around a second core. The fault current limiter may further include a fault current limiter module (e.g., a switching module) electrically connected in series between the secondary winding of the first current splitting device and the secondary winding of the second current splitting device. The fault current limiter may further include a second fault current limiter module electrically connected in series with the secondary winding of the second current splitting device. By splitting the fault current limiter into parts with fault current limiter modules interspersed between the windings, the fault current limiter may be to be built with less insulation between the windings.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: November 24, 2020
    Assignee: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Adrian Wilson, Shankar Kodle, Saeed Jazebi, Piotr Lubicki
  • Patent number: 10784673
    Abstract: Embodiments of the disclosure provide a current protection device with a mutual reactor including a first winding and a second winding. The current protection device is a subcomponent of a previously developed fault current limiter. The current protection device protects the superconductor from potential damage. The current protection device may include a coil electrically connected in series with the first winding or the second winding, an actuator mechanically coupled at an output of the coil, and an electrical interrupter electrically connected to the first and second windings, wherein the actuator is communicatively coupled with the electrical interrupter to actuate a moveable contact of a set of breaker contacts of the electrical interrupter. In some embodiments, the first and second windings are arranged in parallel to one another. In some embodiments, the coil is electrically coupled to an output of the first winding or the second winding.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: September 22, 2020
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Saeed Jazebi, Paul J. Murphy
  • Publication number: 20200006937
    Abstract: Embodiments of the disclosure include a fault current limiter having a first current splitting device including a primary winding and secondary winding wound around a first core, and a second current splitting device including a primary winding and a secondary winding wound around a second core. The fault current limiter may further include a fault current limiter module (e.g., a switching module) electrically connected in series between the secondary winding of the first current splitting device and the secondary winding of the second current splitting device. The fault current limiter may further include a second fault current limiter module electrically connected in series with the secondary winding of the second current splitting device. By splitting the fault current limiter into parts with fault current limiter modules interspersed between the windings, the fault current limiter may be to be built with less insulation between the windings.
    Type: Application
    Filed: September 9, 2019
    Publication date: January 2, 2020
    Inventors: Adrian Wilson, Shankar Kodle, Saeed Jazebi, Piotr Lubicki
  • Patent number: 10468876
    Abstract: Embodiments of the disclosure include a fault current limiter (FCL) providing symmetrical electrostatic shielding. In some embodiments, a FCL includes a superconductor maintained at a first voltage greater than zero voltage, and an enclosure containing the superconductor, the enclosure maintained at a second voltage greater than zero voltage, wherein the second voltage is different from the first voltage. The FCL may include an electrical connection directly coupling the superconductor and the enclosure, wherein the electrical connection enables each of a plurality of current limiting modules of the superconductor to receive, during a fault condition, an equal or unequal sub-portion of a total voltage drop.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: November 5, 2019
    Assignee: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Piotr Lubicki, Saeed Jazebi, David Morrell, George Emmanuel, Paul Murphy
  • Patent number: 10447031
    Abstract: Embodiments of the disclosure include a fault current limiter having a first current splitting device including a primary winding and secondary winding wound around a first core, and a second current splitting device including a primary winding and a secondary winding wound around a second core. The fault current limiter may further include a fault current limiter module (e.g., a switching module) electrically connected in series between the secondary winding of the first current splitting device and the secondary winding of the second current splitting device. The fault current limiter may further include a second fault current limiter module electrically connected in series with the secondary winding of the second current splitting device. By splitting the fault current limiter into parts with fault current limiter modules interspersed between the windings, the fault current limiter may be to be built with less insulation between the windings.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: October 15, 2019
    Assignee: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Adrian Wilson, Shankar Kodle, Saeed Jazebi, Piotr Lubicki
  • Publication number: 20190267799
    Abstract: An apparatus for controlling and monitoring the lifetime of a superconducting fault current limiter. The apparatus may include a processor; and a memory unit coupled to the processor, including a lifetime routine, where the lifetime routine is operative on the processor to monitor the superconducting fault current limiter. The lifetime routine may include a lifetime estimation processor to receive a set of fault information for a fault event of a superconductor tape of the superconducting fault current limiter, determine a present state of the superconductor tape based upon the set of fault information, and determine an estimated lifetime of the superconductor tape based upon the present state. The present state may be determined from additional information such as fault history on the superconducting fault current limiter, as well as a database of superconductor tape behavior with respect to various faults.
    Type: Application
    Filed: April 20, 2018
    Publication date: August 29, 2019
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Saeed Jazebi, John Evans
  • Patent number: 10396548
    Abstract: Embodiments of the disclosure provide a current protection device for a fault current limiter, the current protection device including a detection circuit electrically coupled between a current transformer and a pneumatic timer, and an electrical vacuum interrupter (EVI) coupled to a pneumatic cylinder. In some embodiments, the EVI includes a set of breaker contacts, wherein the pneumatic timer is communicatively coupled with the pneumatic cylinder to actuate a moveable contact of the set of breaker contacts. In some embodiments, the detection circuit is configured to detect a current of the current transformer, and to provide a control signal to the pneumatic cylinder to open or close the set of breaker contacts based on the detected current.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: August 27, 2019
    Assignee: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Scott W. Nickerson, Charles L. Stanley, David Morrell, Semaan Fersan, Saeed Jazebi, George Emmanuel
  • Patent number: 10381155
    Abstract: A novel winding method is described herein which eliminates the circulating currents for wound transformers. A first layer of a wire is wound about the core at a first set of angles. Next, a loop is pulled to form slack in the wire and the wire is continued to be wound at a second set of angles. The loop provides sufficient slack for the cutting and connecting described further below. The winding and loop pulling continues for s sequences to achieve the desired winding. The wire is then cut at each loop.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: August 13, 2019
    Assignee: NEW YORK UNIVERSITY
    Inventors: Francisco De León, Saeed Jazebi
  • Publication number: 20190229528
    Abstract: A superconducting fault current limiter element, comprising: a plurality of tapes, arranged in electrical parallel fashion among one another, wherein at least one tape of the plurality of tapes comprises a superconductor tape, and wherein at least one tape of the plurality of tapes comprises a non-superconductor tape.
    Type: Application
    Filed: January 11, 2019
    Publication date: July 25, 2019
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Scott W. Nickerson, Paul Murphy, Saeed Jazebi
  • Publication number: 20190058318
    Abstract: Embodiments of the disclosure provide a current protection device with a mutual reactor including a first winding and a second winding. The current protection device is a subcomponent of a previously developed fault current limiter. The current protection device protects the superconductor from potential damage. The current protection device may include a coil electrically connected in series with the first winding or the second winding, an actuator mechanically coupled at an output of the coil, and an electrical interrupter electrically connected to the first and second windings, wherein the actuator is communicatively coupled with the electrical interrupter to actuate a moveable contact of a set of breaker contacts of the electrical interrupter. In some embodiments, the first and second windings are arranged in parallel to one another. In some embodiments, the coil is electrically coupled to an output of the first winding or the second winding.
    Type: Application
    Filed: October 6, 2017
    Publication date: February 21, 2019
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Saeed Jazebi, Paul J. Murphy
  • Publication number: 20180309288
    Abstract: Embodiments of the disclosure include a fault current limiter (FCL) providing symmetrical electrostatic shielding. In some embodiments, a FCL includes a superconductor maintained at a first voltage greater than zero voltage, and an enclosure containing the superconductor, the enclosure maintained at a second voltage greater than zero voltage, wherein the second voltage is different from the first voltage. The FCL may include an electrical connection directly coupling the superconductor and the enclosure, wherein the electrical connection enables each of a plurality of current limiting modules of the superconductor to receive, during a fault condition, an equal or unequal sub-portion of a total voltage drop.
    Type: Application
    Filed: April 24, 2017
    Publication date: October 25, 2018
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Piotr Lubicki, Saeed Jazebi, David Morrell, George Emmanuel, Paul Murphy
  • Publication number: 20180219372
    Abstract: Embodiments of the disclosure provide a current protection device for a fault current limiter, the current protection device including a detection circuit electrically coupled between a current transformer and a pneumatic timer, and an electrical vacuum interrupter (EVI) coupled to a pneumatic cylinder. In some embodiments, the EVI includes a set of breaker contacts, wherein the pneumatic timer is communicatively coupled with the pneumatic cylinder to actuate a moveable contact of the set of breaker contacts. In some embodiments, the detection circuit is configured to detect a current of the current transformer, and to provide a control signal to the pneumatic cylinder to open or close the set of breaker contacts based on the detected current.
    Type: Application
    Filed: January 30, 2017
    Publication date: August 2, 2018
    Inventors: Scott W. Nickerson, Charles L. Stanley, David Morrell, Semaan Fersan, Saeed Jazebi, George Emmanuel
  • Publication number: 20180123338
    Abstract: Embodiments of the disclosure include a fault current limiter having a first current splitting device including a primary winding and secondary winding wound around a first core, and a second current splitting device including a primary winding and a secondary winding wound around a second core. The fault current limiter may further include a fault current limiter module (e.g., a switching module) electrically connected in series between the secondary winding of the first current splitting device and the secondary winding of the second current splitting device. The fault current limiter may further include a second fault current limiter module electrically connected in series with the secondary winding of the second current splitting device. By splitting the fault current limiter into parts with fault current limiter modules interspersed between the windings, the fault current limiter may be to be built with less insulation between the windings.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 3, 2018
    Inventors: Adrian Wilson, Shankar Kodle, Saeed Jazebi, Piotr Lubicki
  • Publication number: 20170053740
    Abstract: A novel winding method is described herein which eliminates the circulating currents for wound transformers. A first layer of a wire is wound about the core at a first set of angles. Next, a loop is pulled to form slack in the wire and the wire is continued to be wound at a second set of angles. The loop provides sufficient slack for the cutting and connecting described further below. The winding and loop pulling continues for s sequences to achieve the desired winding. The wire is then cut at each loop.
    Type: Application
    Filed: August 18, 2016
    Publication date: February 23, 2017
    Inventors: Francisco De León, Saeed Jazebi