Patents by Inventor Georgi Manev

Georgi Manev 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: 12165825
    Abstract: Switching system for an on-load tap changer, on-load tap changer and method for switching a tap connection of an on-load tap changer A switching system for an on-load tap changer comprises: a rotatable ring stack, wherein the rotatable ring stack is part of an internal Geneva mechanism, a drive system, wherein the ring stack comprises: a first current carrier ring and a second current carrier ring each of which is selectively electrically coupleable to one of a plurality of contact elements of the tap changer, and a Geneva ring, wherein the drive system comprises a driving wheel, wherein the Geneva ring is mechanically coupleable with the driving wheel, such that the Geneva ring is rotatable by the driving wheel, the first and the second current carrier rings each are coupled with the Geneva ring such that a rotation of Geneva ring causes a joint rotation of the first and the second current carrier ring.
    Type: Grant
    Filed: September 6, 2023
    Date of Patent: December 10, 2024
    Assignee: HITACHI ENERGY LTD
    Inventors: Borislav Vasilev, Georgi Manev, Veselin Nikolov, Angel Mihaylov
  • Patent number: 12033825
    Abstract: A switching system for an on-load tap changer includes: a Geneva mechanism, wherein the Geneva mechanism includes: a rotatable ring with a recess, a connector, the connector being rotatable together with the rotatable ring to electrically connect with a tap of the tap changer, and a rotatable driving wheel, wherein the driving wheel comprises a holding disk and a lever, the holding disk being rotatable around a longitudinal axis and wherein the lever is slidable radial to the longitudinal axis relative to the holding disk, and wherein the lever is coupleable with the recess to rotate the rotatable ring.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: July 9, 2024
    Assignee: HITACHI ENERGY LTD
    Inventors: Georgi Manev, Todor Kokev, Angel Mihaylov
  • Patent number: 12020886
    Abstract: A contact unit for an on-load tap changer includes a connector body and a contact holder coupled to each other, wherein the connector body is configured to connect the contact holder to a contact of the on-load tap changer. The contact unit further includes a contact element coupled to the contact holder and configured to make electrical contact to a contact element of a contact device for the on-load tap changer. The contact unit further includes drive and guiding features coupled to the contact holder such that the contact element is movable driven and linearly guided in a direction away from the connector body.
    Type: Grant
    Filed: August 22, 2023
    Date of Patent: June 25, 2024
    Assignee: HITACHI ENERGY LTD
    Inventors: Borislav Vasilev, Georgi Manev, Todor Kokev, Angel Mihaylov
  • Patent number: 11996256
    Abstract: A switching system for an on-load tap changer comprises: a Geneva mechanism, wherein the Geneva mechanism comprises: a holder, the holder being fixed relative to a housing; a rotatable ring with a recess, the rotatable ring being supported by the holder and being rotatable relative to the holder; a connector, the connector being rotatable together with the rotatable ring to electrically connect with a tap of the tap changer; and a rotatable driving wheel with a protrusion, the protrusion being coupleable with the recess to rotate the rotatable ring, the driving wheel being arranged inside the rotatable ring.
    Type: Grant
    Filed: July 5, 2021
    Date of Patent: May 28, 2024
    Assignee: HITACHI ENERGY LTD
    Inventors: Georgi Manev, Todor Kokev, Angel Mihaylov
  • Patent number: 11942293
    Abstract: A system for controlling a vacuum interrupter for a power diverter switch comprises a main driving shaft which is configured to drive the control cam. The system further comprises the vacuum interrupter which is configured to separate electrical contacts in a vacuum by use of a contact rod, and a transmission unit which is configured to transmit the force generated by the main driving shaft to the contact rod. The transmission unit comprises a plurality of rollable guiding elements and a lever mechanism which is coupled to both the control cam and the contact rod of the vacuum interrupter such that a rotation of the control cam generated by the main driving shaft causes a movement of the contact.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: March 26, 2024
    Assignee: Hitachi Energy Ltd
    Inventors: Georgi Manev, Borislav Vasilev, Todor Kokev
  • Publication number: 20240079190
    Abstract: The present disclosure relates to a driving system for an on-load tap changer, comprising a vacuum interrupter driving mechanism configured to drive a vacuum interrupter of the on-load tap changer, an energy accumulation mechanism mechanically coupled with the vacuum interrupter driving mechanism, and a flywheel mechanism mechanically coupled with the vacuum interrupter driving mechanism. The flywheel mechanism comprises a flywheel. The energy accumulation mechanism is mechanically coupled with a primary driving unit and is configured to accumulate and release energy for combined motion of the vacuum interrupter driving mechanism and the flywheel mechanism. The vacuum interrupter driving mechanism and the flywheel mechanism are arranged along a main driving axis and the flywheel is concentrically arranged around the main driving axis.
    Type: Application
    Filed: February 15, 2022
    Publication date: March 7, 2024
    Inventors: Borislav Vasilev, Georgi Manev, Veselin Nikolov, Angel Mihaylov
  • Patent number: 11894205
    Abstract: A system for controlling a vacuum interrupter for a power diverter switch comprises a main driving shaft which is configured to drive the control cam. The system further comprises the vacuum interrupter which is configured to separate electrical contacts in a vacuum by use of a contact rod, and a transmission unit which is configured to transmit the force generated by the main driving shaft to the contact rod. The transmission unit comprises a plurality of rollable guiding elements and a lever mechanism which is coupled to both the control cam and the contact rod of the vacuum interrupter such that a rotation of the control cam generated by the main driving shaft causes a movement of the contact.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: February 6, 2024
    Assignee: Hitachi Energy Ltd
    Inventors: Georgi Manev, Borislav Vasilev, Todor Kokev
  • Publication number: 20240006132
    Abstract: A contact unit for an on-load tap changer comprises a connector body and a contact holder coupled to each other, wherein the connector body is configured to connect the contact holder to a contact of the on-load tap changer. The contact unit further comprises a contact element coupled to the contact holder and configured to make electrical contact to a contact element of a contact device for the on-load tap changer. The contact unit further comprises drive and guiding means coupled to the contact holder such that the contact element is movable driven and linearly guided in a direction away from the connector body.
    Type: Application
    Filed: January 12, 2022
    Publication date: January 4, 2024
    Inventors: Borislav Vasilev, Georgi Manev, Todor Kokev, Angel Mihaylov
  • Publication number: 20230411088
    Abstract: A switching system for an on-load tap changer includes a rotatable ring stack, wherein the rotatable ring stack is part of an internal Geneva mechanism and a drive system. The ring stack includes a first current carrier ring and a second current carrier ring each of which is selectively electrically coupleable to one of a plurality of contact elements of the tap changer, and a Geneva ring. The drive system includes a driving wheel, wherein the Geneva ring is mechanically coupleable with the driving wheel, such that the Geneva ring is rotatable by the driving wheel, and the first and the second current carrier rings each are coupled with the Geneva ring such that a rotation of Geneva ring causes a joint rotation of the first and the second current carrier ring.
    Type: Application
    Filed: January 25, 2022
    Publication date: December 21, 2023
    Inventors: Borislav Vasilev, Georgi Manev, Veselin Nikolov, Angel Mihaylov
  • Publication number: 20230411089
    Abstract: Switching system for an on-load tap changer, on-load tap changer and method for switching a tap connection of an on-load tap changer A switching system for an on-load tap changer comprises: a rotatable ring stack, wherein the rotatable ring stack is part of an internal Geneva mechanism, a drive system, wherein the ring stack comprises: a first current carrier ring and a second current carrier ring each of which is selectively electrically coupleable to one of a plurality of contact elements of the tap changer, and a Geneva ring, wherein the drive system comprises a driving wheel, wherein the Geneva ring is mechanically coupleable with the driving wheel, such that the Geneva ring is rotatable by the driving wheel, the first and the second current carrier rings each are coupled with the Geneva ring such that a rotation of Geneva ring causes a joint rotation of the first and the second current carrier ring.
    Type: Application
    Filed: September 6, 2023
    Publication date: December 21, 2023
    Inventors: Borislav Vasilev, Georgi Manev, Veselin Nikolov, Angel Mihaylov
  • Publication number: 20230395333
    Abstract: A contact unit for an on-load tap changer includes a connector body and a contact holder coupled to each other, wherein the connector body is configured to connect the contact holder to a contact of the on-load tap changer. The contact unit further includes a contact element coupled to the contact holder and configured to make electrical contact to a contact element of a contact device for the on-load tap changer. The contact unit further includes drive and guiding means coupled to the contact holder such that the contact element is movable driven and linearly guided in a direction away from the connector body.
    Type: Application
    Filed: August 22, 2023
    Publication date: December 7, 2023
    Inventors: Borislav Vasilev, Georgi Manev, Todor Kokev, Angel Mihaylov
  • Publication number: 20230317389
    Abstract: A system for controlling a vacuum interrupter for a power diverter switch comprises a main driving shaft which is configured to drive the control cam. The system further comprises the vacuum interrupter which is configured to separate electrical contacts in a vacuum by use of a contact rod, and a transmission unit which is configured to transmit the force generated by the main driving shaft to the contact rod. The transmission unit comprises a lever mechanism with a plurality of rollable guiding elements and a rotatable fork-shaped lever, the lever mechanism is coupled to both the control cam and the contact rod of the vacuum interrupter such that a rotation of the control cam generated by the main driving shaft causes a movement of the contact rod due to a guided rotation of the fork-shaped lever by means of rolling of the guiding elements.
    Type: Application
    Filed: May 6, 2021
    Publication date: October 5, 2023
    Inventors: Georgi Manev, Borislav Vasilev, Todor Kokev
  • Publication number: 20230230782
    Abstract: A switching system for an on-load tap changer comprises: a Geneva mechanism, wherein the Geneva mechanism comprises: a holder, the holder being fixed relative to a housing; a rotatable ring with a recess, the rotatable ring being supported by the holder and being rotatable relative to the holder; a connector, the connector being rotatable together with the rotatable ring to electrically connect with a tap of the tap changer; and a rotatable driving wheel with a protrusion, the protrusion being coupleable with the recess to rotate the rotatable ring, the driving wheel being arranged inside the rotatable ring.
    Type: Application
    Filed: July 5, 2021
    Publication date: July 20, 2023
    Inventors: Georgi Manev, Todor Kokev, Angel Mihaylov
  • Publication number: 20230230786
    Abstract: A system for controlling a vacuum interrupter for a power diverter switch comprises a main driving shaft which is configured to drive the control cam. The system further comprises the vacuum interrupter which is configured to separate electrical contacts in a vacuum by use of a contact rod, and a transmission unit which is configured to transmit the force generated by the main driving shaft to the contact rod. The transmission unit comprises a plurality of rollable guiding elements and a lever mechanism which is coupled to both the control cam and the contact rod of the vacuum interrupter such that a rotation of the control cam generated by the main driving shaft causes a movement of the contact.
    Type: Application
    Filed: August 24, 2021
    Publication date: July 20, 2023
    Applicant: Hitachi Energy Switzerland AG
    Inventors: Georgi MANEV, Borislav VASILEV, Todor KOKEV
  • Publication number: 20230230781
    Abstract: A switching system for an on-load tap changer includes: a Geneva mechanism, wherein the Geneva mechanism includes: a rotatable ring with a recess, a connector, the connector being rotatable together with the rotatable ring to electrically connect with a tap of the tap changer, and a rotatable driving wheel, wherein the driving wheel comprises a holding disk and a lever, the holding disk being rotatable around a longitudinal axis and wherein the lever is slidable radial to the longitudinal axis relative to the holding disk, and wherein the lever is coupleable with the recess to rotate the rotatable ring.
    Type: Application
    Filed: June 18, 2021
    Publication date: July 20, 2023
    Inventors: Georgi Manev, Todor Kokev, Angel Mihaylov
  • Publication number: 20050223283
    Abstract: An integrated tracing and logging system for an enterprise network. One embodiment of the integrated logging and tracing system has an object-oriented architecture which includes a controller class with two sub-classes: a tracing sub-class and a logging sub-class. Instances of the tracing sub-class (tracing modules) are associated with specified program code regions of network applications. The tracing modules receive method calls from the network applications and process the method calls based on defined severity levels. Instances of the logging sub-class (logging modules) are associated with specified “categories” related to the enterprise network (e.g., system, database, etc). The logging modules receive and process method calls from network components associated with the categories. The integrated logging and tracing system allows the format of tracing and logging messages to be configured without recompiling any source code.
    Type: Application
    Filed: March 26, 2004
    Publication date: October 6, 2005
    Inventors: Gregor Frey, Heiko Kiessling, Miroslav Petrov, Georgi Manev, Nikola Marchev
  • Patent number: D968342
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: November 1, 2022
    Assignee: Hitachi Energy Switzerland AG
    Inventors: Francesco Medea, Carlo Camporeale, Georgi Manev, Borislav Vasilev