Patents Assigned to General Electric Technology GmbH
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Patent number: 11141775Abstract: A method for manufacturing boiler tubes includes the steps of removing end caps from a plurality of tubes, the plurality of tubes including at least a first tube and a second tube, cleaning an outer surface of the first tube and the second tube, forming a weld preparation on an upstream end of the first tube, forming a weld preparation on a downstream end of the second tube, welding the upstream end of the first tube to the downstream end of the second tube to form a butt weld, to produce a long tube, and with an automated device, measuring a parameter of at least the first tube and the second tube. The steps of removing the end caps, cleaning the outer surface of the tubes, forming the weld preparations, welding the first tube to the second tube, and measuring the parameter are performed autonomously.Type: GrantFiled: September 15, 2017Date of Patent: October 12, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventor: Ronald Francis Konopacki
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Patent number: 11146043Abstract: A switching apparatus comprises: a plurality of parallel-connected current-conductive branches, each current-conductive branch including at least one respective gas tube switch; and a switching control unit configured to control the turn-on of the gas tube switches in a switching order so that the flow of current in the switching apparatus is controlled to switch between the current-conductive branches, wherein the switching order of the turn-on of the gas tube switches is arranged so that only one of the current-conductive branches is carrying the current during each turn-on cycle of the switching apparatus.Type: GrantFiled: December 11, 2017Date of Patent: October 12, 2021Assignee: General Electric Technology GmbHInventor: Colin Charnock Davidson
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Patent number: 11127550Abstract: A contact arrangement for a Pre-Insertion Resistor (PIR) wherein a control rod is arranged to move a movable contact, against the force of a biasing member, into temporary connection with a PIR. The control rod comprises a tulip with a plurality of resilient fingers and having a first diameter where it is able to mechanically couple to a latching ring on the movable contact, and a second diameter where the tulip is deformed with the fingers deflected inwards, once the resistance to movement exceeds a predetermined value, wherein the latching ring is able to pass over the tulip to decouple the movable contact from the control rod. The contact arrangement is particularly suited for a PIR arranged for connection in parallel to the interrupter of a gas-insulated switchgear (GIS) circuit breaker.Type: GrantFiled: June 4, 2020Date of Patent: September 21, 2021Assignee: General Electric Technology GmbHInventors: Keith McLaughlin, Ludovic Darles, Jérôme Laurent, Thomas Tometich, Andrew Chovanec, Chase Peltier
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Publication number: 20210286021Abstract: The disclosure generally relates to a failure indicator for providing an indicator that a failure has occurred on a capacitor unit of a capacitor bank. In some embodiments, the failure indicator may include a magnetic element, and the failure indicator may be configured to move from a first orientation to a second orientation based on a mechanical or electromagnetic impulse in the capacitor unit resulting from a failure of the first capacitor unit. In some embodiments, the magnetic element may maintain the first failure indicator in the second orientation to indicate the failure of the first capacitor unit.Type: ApplicationFiled: March 16, 2020Publication date: September 16, 2021Applicant: General Electric Technology GmbHInventors: Tuomo RINNE, Jari Tapani KOTINIITTY, Alan John SWADE, William J. DE VRIES, Jussi PONTYS, Pekka NEVALAINEN
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Patent number: 11121640Abstract: A method of controlling a voltage source converter including at least one converter limb, each converter limb including limb portions, at least one limb portion including a chain-link converter having modules, each module including at least one switching element and at least one energy storage device, which combine to selectively provide a voltage source, comprising the steps of: establishing during an operating cycle of the chain-link converter a utilization peak based on the actual peak number of modules providing a voltage source; establishing a target utilization based on a desired number of modules providing a voltage source during the operating cycle; and determining a control function based on a difference between the established utilization peak and the target utilization which alters the peak number of modules providing a voltage source during a subsequent operating cycle of the chain-link converter so as to drive the utilization peak towards the target utilization.Type: GrantFiled: March 20, 2018Date of Patent: September 14, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventor: John Lewis Outram
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Patent number: 11117136Abstract: A method of upgrading a vertical spindle pulverizer includes the steps of removing a cover from a journal opening in a housing of the pulverizer to access a grinding zone of the pulverizer, removing a first journal assembly having a toroidal grinding roll from the pulverizer through the journal opening, removing a plurality of toroidal table segments from a grinding table of the pulverizer, installing a plurality of inclined bull ring segments on the grinding table, installing a second journal assembly having a conical grinding roll in the pulverizer, and replacing the cover over the journal opening. The inclined bull ring segments are configured to register with a grinding surface of the conical grinding roll.Type: GrantFiled: October 30, 2019Date of Patent: September 14, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Paul M. Colson, Douglas W. Crafts
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Patent number: 11108301Abstract: Disclosed is a turbogenerator rotor, the rotor including a rotor body having two axial ends. The rotor further including a trunnion axially extending from each axial end of the rotor body. the rotor further including at least one baffle assembly provided on the circumference of the rotor body, the baffle assembly including at least one baffle member reversibly attached to the rotor body.Type: GrantFiled: January 8, 2019Date of Patent: August 31, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Laurent Clemence, Duncan Madle, Pierreyves Ronan David, Laurent Viain
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Patent number: 11092331Abstract: The present application provides a once-through evaporator system. The once-through evaporator system may include a number of enlarged once-through evaporator sections, a first superheater positioned immediately downstream of the enlarged once-through evaporator sections, a second superheater positioned downstream of the first superheater, and an attemperator positioned between the first superheater and the second superheater.Type: GrantFiled: November 16, 2018Date of Patent: August 17, 2021Assignee: General Electric Technology GmbHInventors: Christoph Bernhard Ruchti, Petrus Johannes Koller, Chuan Wang, Jeffrey Fredrick Magee, Hans Ulrich Lenherr, Alexander Taylor
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Patent number: 11092980Abstract: A valve with relatively reduced tank penetration is useful for cleaning at least a portion of a filter unit, such as multiple filter bags, arranged in a filter installation for filtering polluted gas passed therethrough. This valve is preferably a relatively high performance pulse valve of relatively small pressure vessel penetration cross section area useful with relatively lower cost pressure vessels.Type: GrantFiled: November 16, 2016Date of Patent: August 17, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Per-Erik Albert Appelo, Abdul Basheer Kuttecheri
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Patent number: 11092332Abstract: The present application provides a once-through evaporator system. The once-through evaporator system may include a number of once-through evaporator sections with a distribution valve and a level sensor and a controller in communication with each distribution valve. The controller provides the distribution valve with a position set point and biases the position set point via a feedforward signal based on a fill level as determined by the level sensor in each of the once-through evaporator sections.Type: GrantFiled: November 16, 2018Date of Patent: August 17, 2021Assignee: General Electric Technology GmbHInventors: Petrus Johannes Koller, Rudolf Zinniker, Hans Ulrich Lenherr, Alexander Taylor, Stefan Lukas Gysel
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Patent number: 11081879Abstract: A DC distance protection controller for identifying a fault within a protection zone that extends between a first terminal and a set point along a DC power transmission conduit which lies between the first terminal and a second terminal within a DC electrical power network. The protection controller periodically obtains as respective sampled pairs a measured voltage value and a measured current value of the DC power transmission conduit; isolates a fault component voltage value and a fault component current value to define a respective corresponding isolated pair; calculates from each isolated pair a fault component operating voltage of the DC power transmission conduit at the set point; compare a given calculated fault component operating voltage with a historical voltage value; and identifies a fault within the protection zone when the given calculated fault component operating voltage is greater than the historical voltage value.Type: GrantFiled: September 29, 2016Date of Patent: August 3, 2021Assignee: General Electric Technology GmbHInventors: Sankara Sri Gopala Krishna Murthi, Hengxu Ha
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Patent number: 11082213Abstract: The technologies described herein are generally directed toward facilitating switching encryption keys based on an assurance value. According to an embodiment, a method can comprise receiving, by a device comprising a processor and memory, an assurance value from a key distribution server. The method can further comprise, based on the assurance value, switching, by the device, encryption of a content item from being by a first encryption key to being by a second encryption key, wherein the assurance value is determined in response to a receiving of a second decryption key by a content consuming device, and wherein the first and second decryption keys are generated respectively to decrypt the content item encrypted by the first and second encryption keys.Type: GrantFiled: February 28, 2019Date of Patent: August 3, 2021Assignee: General Electric Technology GmbHInventor: Anca Lucia Cioraca
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Patent number: 11073547Abstract: The technology described herein is generally directed to a method of locating a fault in a multi-terminal electrical power transmission scheme, such as implemented in a power transmission scheme where each of six terminals is connected with one of four junctions via a power transmission section and each junction interconnects a plurality of power transmission sections. Aspects of the described technology can be directed to measuring the voltage and current at each terminal, calculating from the measured voltage and current at each terminal corresponding voltage and current phasors, determining from the calculated voltage and current phasors a synchronization difference between the measured voltage and current at a designated terminal and the measured voltage and current at each other terminal, modifying the calculated voltage and current phasors to compensate for each synchronization difference, and determining from the compensated voltage and current phasors the location of the fault.Type: GrantFiled: November 3, 2017Date of Patent: July 27, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Hengxu Ha, Sankara Subramanian Sri Gopala Krishna Murthi, Gajendiran Balakrishnan
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Patent number: 11070393Abstract: A power delivery apparatus (20) comprises a power source device (22), a power sink device (24) and a data transmission link (26), the power source device (22) connected to one end of the data transmission link (26), the power sink device (24) selectively connectable to another end of the data transmission link (26), the data transmission link (26) configured to permit transmission of data between the power source device (22) and the power sink device (24) when the power sink device (24) is connected to the data transmission link (26), wherein the power source device (22) is configured to apply a periodic sensing voltage to the data transmission link (26), the power delivery apparatus (20) further including a sensing device configured to detect, via the application of the periodic sensing voltage to the data transmission link (26), whether the power sink device (24) is connected to the data transmission link (26), and the power source device (22) is configured so that, in response to the power sink device (24)Type: GrantFiled: September 7, 2018Date of Patent: July 20, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventor: Jun Yan
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Patent number: 11059748Abstract: A lime hydrator integrated into a flue gas desulfurization system or other industrial system is provided that provides an in-situ variable rate of cured hydrated lime production for a variable supply rate of the in-situ produced cured hydrated lime for use within a flue gas stream as a moistened hydrated lime for a reduction of acid gas present in a flue gas stream. Also provided is a method of using a lime hydrator integrated into a flue gas desulfurization system or other industrial system to provide in-situ a variable production rate of cured hydrated lime for a variable supply rate of the in-situ produced cured hydrated lime for use within a flue gas stream as a moistened hydrated lime for a reduction of acid gas present in a flue gas stream.Type: GrantFiled: July 4, 2017Date of Patent: July 13, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Wuyin Wang, Per Hakan Fredrik Landmer, Evald Johansson, Lars-Erik Johansson
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Patent number: 11053799Abstract: The invention relates to a steam turbine rotor wherein the inter blade region rotor surface, the feed region rotor surface, the piston region rotor surface and the stress relief groove rotor surface of the rotor are configured and arranged as steam exposed surfaces during normal operation of the steam turbine rotor. The steam turbine rotor has a thermal barrier coating on at least the piston region rotor surface.Type: GrantFiled: December 3, 2019Date of Patent: July 6, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Mageshwaran Ramesh, Thomas Schreier, Ingo Kuehn, Gregoire Etienne Witz
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Patent number: 11056300Abstract: A circuit breaker, comprising an enclosure comprising: —at least two arcing contacts that are movable axially relative to each other, between an open position of the circuit breaker in which the arcing contacts are separated from each other and a closed position of the circuit breaker in which the arcing contacts are in contact with each other; and —a gas inlet configured to blow an arc-control gas in order to interrupt an electric arc that is likely to form during movement of the arcing contacts from the closed position to the open position of the circuit breaker, wherein the arc-control gas comprises at least 80% of carbon dioxide; wherein the enclosure further comprises a catalytic material, which converts carbon monoxide that forms after ionization of the carbon dioxide during arcing, into carbon dioxide, said catalytic material comprising ceria and a precious metal.Type: GrantFiled: May 16, 2018Date of Patent: July 6, 2021Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventors: Yannick Kieffel, Louis Maksoud
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Patent number: 11050421Abstract: An electrical assembly comprises a device. The device includes an inductive coil and an armature. The armature is arranged to be moveable between first and second positions when the inductive coil is energized. The electrical assembly further includes a detection unit which is configured to detect an inductance of the inductive coil or a characteristic that corresponds to the inductance of the inductive coil. The detection unit is further configured to determine the position of the armature based on the detected inductance or the detected characteristic.Type: GrantFiled: October 16, 2017Date of Patent: June 29, 2021Assignee: General Electric Technology GmbHInventor: Cristian Schlezinger
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Patent number: 11049670Abstract: The disclosure relates to a mechatronic circuit-breaker device adapted to break an electrical current flowing through electrical power transmission means, the device including a main branch comprising at least one electromechanical switch-disconnector connected in series with at least one breaker cell itself electrically in parallel with a snubber and a first voltage surge limiter; an auxiliary branch electrically in parallel with the main branch and comprising at least one power electronic switch, connected in series with at least one capacitor, itself electrically in parallel with its discharge resistance and a second voltage surge limiter. The first voltage surge limiter has a sharper voltage-current characteristic and offering a much steeper slope at low currents than the second surge limiter.Type: GrantFiled: October 12, 2016Date of Patent: June 29, 2021Assignee: General Electric Technology GmbHInventor: Jean-Pierre Dupraz
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Patent number: 11041898Abstract: There is provided a method of locating a fault in a power transmission medium, including: monitoring, at a first monitoring location, an electrical characteristic of a power transmission medium at a plurality of frequencies; detecting, at the first monitoring location, a set of propagating fault signals including: a first propagating fault signal of the electrical characteristic at a first frequency of the plurality of frequencies, and a second propagating fault signal of the electrical characteristic at a second frequency of the plurality of frequencies, wherein each propagating fault signal is caused by the fault in the power transmission medium; comparing the first and second propagating fault signals with one another to obtain a set comparison value; and determining a location of the fault in the power transmission medium by deriving, from the set comparison value, a fault distance from the first monitoring location.Type: GrantFiled: December 7, 2016Date of Patent: June 22, 2021Assignee: General Electric Technology GmbHInventor: Rosemary King