Patents by Inventor Rolf Disselnkotter

Rolf Disselnkotter 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: 10088506
    Abstract: A method for identifying a fault condition in an electrical machine in which at least a stator or a rotor has parallel winding branches is disclosed. A measurement is carried out for obtaining a set of circulating current values between two parallel winding branches of which each winding branch includes a single coil. A frequency analysis is applied on the set of circulating current values to obtain at least one frequency component. A fault condition of the electrical machine is determined on the basis of the at least one frequency component.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: October 2, 2018
    Assignee: ABB Research Ltd.
    Inventors: Pedro Rodriguez, Cajetan Pinto, Maciej Orman, Michal Orkisz, Ulf Ahrend, Rolf Disselnkötter, Pawel Rzeszucinski, James Ottewill
  • Patent number: 9791478
    Abstract: The invention is about a current transducer of the Rogowski type, with a primary conductor winding having a first number of loops (N1) for carrying the rated current (IR) to be measured, with a secondary conductor winding having a pair of second terminals and a helical shape and a second number of loops (N2), said secondary conductor winding encircling the primary conductor in a toroidal manner, whereby a rated current voltage signal VS is induced between the pair of second terminals of the secondary winding, said rated current voltage signal being characteristic for the derivative of the rated current (dIR/dt), with a transducer electronics (IED) configured to receive the rated current voltage signal (VS), characterized in that the current transducer comprises a third conductor winding having a pair of third terminals with a third number of loops (N3), whereby the transducer electronics (IED) is configured to feed a calibration current signal (ICal) into the third conductor winding, whereby in response to th
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: October 17, 2017
    Assignee: ABB Schweiz AG
    Inventors: Joris Pascal, Yannick Maret, Jean-Baptiste Kammerer, Rolf Disselnkotter
  • Patent number: 9646748
    Abstract: A resistive voltage divider includes first and second resistors, which are electrically connected in series and are made of a resistive film material which is applied in the form of a trace onto an insulating substrate. The divider's voltage ratio has a value between ten and one million. To improve the accuracy of the voltage divider, the first and second resistors are made of the same resistive film material, have a trace length above a corresponding specific trace length, and have approximately the same trace width.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: May 9, 2017
    Assignee: ABB AG
    Inventors: Adrian Hozoi, Rolf Disselnkötter
  • Patent number: 9645174
    Abstract: A resistive voltage divider includes a first resistor and a second resistor electrically connected in series. Each of the resistors is made of an electrically resistive film material and applied in the form of a trace onto an insulating substrate. The divider's voltage ratio has a value between one hundred and one million, where two ends of the trace of the second resistor overlap at least in part with a first and a second) contacting terminal, respectively, and two ends of the trace of the first resistor overlap at least in part with the first and third contacting terminal, respectively. In order to decrease the parasitic capacitance between the first contacting terminal and the third contacting terminal, the second contacting terminal is placed with at least a screening part between the first and the third contacting terminals.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: May 9, 2017
    Assignee: ABB AG
    Inventors: Adrian Hozoi, Rolf Disselnkötter
  • Patent number: 9583242
    Abstract: A resistive voltage divider includes at least a first and a second resistor electrically connected in series. The resistors are made of an electrically resistive film material and each resistor is applied as a trace onto an insulating substrate. The divider's voltage ratio has a value between one hundred and one million. In order to achieve these high voltage ratios, a third resistor is electrically connected in parallel with the second resistor. The trace of the second and of the third resistor each overlap on one end at least in part with a first contacting terminal and on the respective other end at least in part with a second contacting terminal. A compact size of the divider is maintained by arranging the first and second contacting terminals in an interdigitated manner.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: February 28, 2017
    Assignee: ABB AG
    Inventors: Adrian Hozoi, Rolf Disselnkotter
  • Patent number: 9507006
    Abstract: An exemplary method for calibrating a current transducer of the Rogowski type including a Rogowski coil sensor and an electronic device is performed by determining and correcting the sensitivity of the current transducer of the Rogowski type through the measurement of the self-inductance LRCCT of the coil using the electronic device.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: November 29, 2016
    Assignee: ABB Schweiz AG
    Inventors: Joris Pascal, Rolf Disselnkötter, Franz Zurfluh, Bernhard Deck
  • Patent number: 9299484
    Abstract: A resistive structure has an improved electric field profile deposited on the surface of a cylindrical insulating substrate. At least one resistive path or trace is provided with a helix-looking shape and is directly printed on the surface of the insulating substrate. A resistive voltage divider includes first and second resistors electrically connected in series, where each resistor is made of one or more traces of electrically resistive film material applied onto a cylindrical insulating substrate. At least one of the traces is shaped like a helix and is applied onto the substrate by direct printing.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: March 29, 2016
    Assignee: ABB AG
    Inventors: Adrian Hozoi, Rolf Disselnkötter, Marek Pavlas
  • Publication number: 20150276823
    Abstract: A method for identifying a fault condition in an electrical machine in which at least a stator or a rotor has parallel winding branches is disclosed. A measurement is carried out for obtaining a set of circulating current values between two parallel winding branches of which each winding branch includes a single coil. A frequency analysis is applied on the set of circulating current values to obtain at least one frequency component. A fault condition of the electrical machine is determined on the basis of the at least one frequency component.
    Type: Application
    Filed: October 3, 2013
    Publication date: October 1, 2015
    Inventors: Pedro Rodriguez, Cajetan Pinto, Maciej Orman, Michal Orkisz, Ulf Ahrend, Rolf Disselnkötter, Pawel Rzeszucinski, James Ottewill
  • Publication number: 20140159744
    Abstract: An exemplary electrical device for measuring alternating current or current pulses includes at least one coil of electrically conductive wire being wound around a non-magnetic carrier, where the non-magnetic carrier is made of glass.
    Type: Application
    Filed: January 16, 2014
    Publication date: June 12, 2014
    Applicant: ABB Technology AG
    Inventors: Adrian HOZOI, Rolf Disselnkötter
  • Patent number: 8698485
    Abstract: An exemplary current sensor operating in accordance with the principle of compensation includes a primary winding creating a magnetic field based on a current to be measured, a secondary winding generating a magnetic field compensating the primary winding based on a compensation current. The current sensor also includes a magnetic core, a terminating resistor connected in series to the secondary winding, and sensor means. A booster circuit is connected downstream of the sensor means and feeds the compensation current to the secondary winding via the terminating resistor. The booster circuit includes a switched mode amplifier with a pulse width and density modulator that operates based on pulse width and density modulation, turning the compensation current into a pulse width and density modulated current. The switched mode amplifier having a switching frequency that is high at when the compensation current is small and low when the compensation current is high.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: April 15, 2014
    Assignee: ABB AG
    Inventors: Adrian Hozoi, Rolf Disselnkötter
  • Publication number: 20130335106
    Abstract: A resistive voltage divider includes first and second resistors, which are electrically connected in series and are made of a resistive film material which is applied in the form of a trace onto an insulating substrate. The divider's voltage ratio has a value between ten and one million. To improve the accuracy of the voltage divider, the first and second resistors are made of the same resistive film material, have a trace length above a corresponding specific trace length, and have approximately the same trace width.
    Type: Application
    Filed: August 23, 2013
    Publication date: December 19, 2013
    Applicant: ABB AG
    Inventors: Adrian HOZOI, Rolf Disselnkötter
  • Publication number: 20120268108
    Abstract: An exemplary current sensor operating in accordance with the principle of compensation includes a primary winding creating a magnetic field based on a current to be measured, a secondary winding generating a magnetic field compensating the primary winding based on a compensation current. The current sensor also includes a magnetic core, a terminating resistor connected in series to the secondary winding, and sensor means. A booster circuit is connected downstream of the sensor means and feeds the compensation current to the secondary winding via the terminating resistor. The booster circuit includes a switched mode amplifier with a pulse width and density modulator that operates based on pulse width and density modulation, turning the compensation current into a pulse width and density modulated current. The switched mode amplifier having a switching frequency that is high at when the compensation current is small and low when the compensation current is high.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Applicant: ABB AG
    Inventors: Adrian HOZOI, Rolf Disselnkötter
  • Patent number: 7866219
    Abstract: A measuring instrument to capture a physical/chemical measured value, including a sensor unit, which is linked via a contactless interface to a transmitter unit, for passing on to a central analysis unit, wherein the sensor unit includes an at least partly internal sensor element which vibrates against a sensor housing because of operation, and which is linked, contactlessly and inside the sensor unit, for sensor signal transmission, via a first transmission/reception unit, to a complementary second transmission/reception unit, which is arranged at a fixed location relative to the sensor housing, and which is also linked, contactlessly and outside the sensor unit, to a third transmission/reception unit of the transmitter unit.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: January 11, 2011
    Assignee: ABB Patent GmbH
    Inventors: Frank Kassubek, Lothar Deppe, Rolf Disselnkötter, Steffen Keller, Jörg Gebhardt, René Friedrichs, Beat Kramer
  • Publication number: 20090009232
    Abstract: A switching device suitable for operation in temperatures over 150 C comprises first 1 and second 2 transistors, the source 1S of the first transistor being connected to the drain 2D of the second transistor, the gate 2G of the second transistor being connected to the source 1S of the first transistor and the gate 1G of the first transistor being connected in use to control circuitry 3 such that current flow through the transistors is controlled in use by the application of a control signal from the control circuitry, characterised in that the first and second transistors are both operative at temperatures over 150 C.
    Type: Application
    Filed: August 24, 2005
    Publication date: January 8, 2009
    Inventors: Jens Helfrich, Rolf Disselnkotter
  • Publication number: 20080080141
    Abstract: An electrical circuit package comprises a ceramic substrate (1) with an electrical circuit pattern formed on one surface thereof, an opposite surface of the substrate being metallized, and an electrically conductive platelet (2) and a conductor body (3), arranged so that a first face of the platelet is soldered to the metallized surface of the substrate and an opposite face of the platelet is affixed in contact with the conductor body. A method of constructing the package is also described.
    Type: Application
    Filed: August 4, 2005
    Publication date: April 3, 2008
    Inventors: Hans-Joachim Krokoszinski, Jens Helfrich, Rolf Disselnkotter
  • Publication number: 20070269591
    Abstract: A method of treating an electronic component comprising an insulating substrate with conductive areas formed thereon to metallise the surface of at least one of the conductive areas comprises the steps of: a) applying a protective barrier to areas of the component which are not to be treated, b) cleaning the unprotected areas of the component, c) applying a layer of nickel to the cleaned areas, d) applying a layer of gold to the nickel coated areas, and e) removing the protective barrier. An electronic component comprising an insulating substrate with at least one conductive area formed thereon, wherein said at least one conductive area is coated with a layer of nickel, the layer of nickel being in turn coated with a layer of gold is also claimed.
    Type: Application
    Filed: July 28, 2005
    Publication date: November 22, 2007
    Inventors: Helmut Gruss, Erwin Barsch, Hans-Joachim Krokoszinski, Dieter Gilbers, Jens Helfrich, Rolf Disselnkotter, Ralf Dittman
  • Patent number: 6933639
    Abstract: A method for driving a thrust body with a bidirectional linear solenoid drive having at least in each case one first actuator and one second actuator includes the steps of providing the at least one first actuator with at least one coil and a yoke and applying force alternately to the thrust body by interacting the first actuator with at least one armature ring. The armature ring is rotated with the second actuator to thereby axially shift the thrust body by the rotation of the armature ring. The thrust body is, then, shifted axially and is subsequently fixed in position with the thrust body being shifted in steps in this way until it has reached its respective final position. Also provided is a configuration for carrying out the method.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: August 23, 2005
    Assignee: Vecto Gray Controls Limited
    Inventors: Hans-Joachim Krokoszinski, Andreas Kahnert, Wolfgang Waldi, Rolf Disselnkötter
  • Publication number: 20040263004
    Abstract: A method for driving a thrust body with a bidirectional linear solenoid drive having at least in each case one first actuator and one second actuator includes the steps of providing the at least one first actuator with at least one coil and a yoke and applying force alternately to the thrust body by interacting the first actuator with at least one armature ring. The armature ring is rotated with the second actuator to thereby axially shift the thrust body by the rotation of the armature ring. The thrust body is, then, shifted axially and is subsequently fixed in position with the thrust body being shifted in steps in this way until it has reached its respective final position. Also provided is a configuration for carrying out the method.
    Type: Application
    Filed: July 19, 2004
    Publication date: December 30, 2004
    Applicant: ABB Patent GmbH
    Inventors: Hans-Joachim Krokoszinski, Andreas Kahnert, Wolfgang Waldi, Rolf Disselnkotter
  • Patent number: 5905615
    Abstract: An electric power distribution system having a number of automatic protection breakers distributed on various levels is disclosed herein. Each protection breaker includes an electronic protection unit to open the breaker, which is controlled based on the amount of current flowing through the breaker and its derivative. Each of the breakers is preferably connected in order to exchange information concerning their respective status. Also disclosed herein is method for controlling the intervention sequence of the mutually interlocked breakers, in which a breaker reports a detected fault condition to its next higher level breaker.
    Type: Grant
    Filed: October 23, 1997
    Date of Patent: May 18, 1999
    Assignee: ABB Research Ltd.
    Inventors: Giandomenico Rivetti, Fabrizio Lorito, Serverino Colombo, Jan Teigland, Rolf Disselnkotter, Erik Carlson