Patents by Inventor Ole Granhaug
Ole Granhaug 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).
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Patent number: 9196431Abstract: An encapsulated switchgear that includes a housing defining, an insulating space, and an electrical active part arranged in the insulating space, the insulating space with an insulation medium. The switchgear is characterized in that the insulation medium with a dielectric compound having a boiling point of above ?5° C.Type: GrantFiled: February 7, 2014Date of Patent: November 24, 2015Assignee: ABB Technology AGInventors: Maik Hyrenbach, Ole Granhaug, Max-Steffen Claessens, Per Skarby
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Patent number: 8929048Abstract: A device for suppressing very fast transients, applicable in protecting electric and/or electric power equipment, and especially transformers operating in electric power substations and in wind power plants, connected in a supply network circuit downstream of a circuit breaker and upstream of the protected equipment is disclosed. The device is a component of an induction character, comprising a high-frequency magnetic core arranged around the current-conducting lead. On the magnetic core is wound at least one winding with at least one pair of terminals used for connecting at least one damping resistor. The inventive device contains an insulating body in which there is a magnetic core, a damping resistor and a winding, or an insulating body in which there is a magnetic core together with a damping resistor, a winding and a section of a current-conducting lead.Type: GrantFiled: May 16, 2011Date of Patent: January 6, 2015Assignee: ABB Technology AGInventors: Dariusz Smugala, Wojciech Piasecki, Grzegorz Bywalec, Magdalena Ostrogorska, Ole Granhaug, Pal Skryten
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Publication number: 20140151202Abstract: An encapsulated switchgear that includes a housing defining, an insulating space, and an electrical active part arranged in the insulating space, the insulating space with an insulation medium. The switchgear is characterized in that the insulation medium with a dielectric compound having a boiling point of above ?5° C.Type: ApplicationFiled: February 7, 2014Publication date: June 5, 2014Inventors: Maik Hyrenbach, Ole Granhaug, Max-Steffen Claessens, Per Skarby
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Patent number: 8680421Abstract: An encapsulated switchgear that includes a housing defining, an insulating space, and an electrical active part arranged in the insulating space, the insulating space with an insulation medium. The switchgear is characterized in that the insulation medium with a dielectric compound having a boiling point of above ?25° C.Type: GrantFiled: December 12, 2011Date of Patent: March 25, 2014Assignee: ABB Technology AGInventors: Maik Hyrenbach, Ole Granhaug, Max-Steffen Claessens, Per Skarby
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Publication number: 20130063855Abstract: The subject of the invention is a device for suppressing very fast transients (1, 1a, 1b), applicable in protecting electric and/or electric power equipment, and especially transformers operating in electric power substations and in wind power plants, connected in the supply network circuit downstream of the circuit breaker and upstream of the protected equipment. The device according to the invention is a component of an induction character (1, 1a, 1b), comprising a high-frequency magnetic core (2) arranged around the current-conducting lead (3). On the magnetic core (2) there is wound at least one winding (4, 4a) with at least one pair of terminals (6) used for connecting at least one damping resistor (7).Type: ApplicationFiled: May 16, 2011Publication date: March 14, 2013Inventors: Dariusz Smugala, Wojciech Piasecki, Grzegorz Bywalec, Magdalena Ostrogorska, Ole Granhaug, Pal Skryten
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Patent number: 8366484Abstract: A device for electric connection to an energy supply conductor for medium and/or high voltage having a voltage-carrying element with an outer periphery, and a tubular outer shell with an inner periphery, the outer shell being formed by a polymer, and along at least a part of the axial extension of the element the outer shell extends axially with a space between its inner periphery and the outer periphery of the element, at least along a section of said part of the axial extension of the element the space is filled with a filler of an electrically insulating material other than that of the outer shell. An electric installation including the device, and a method for producing the device.Type: GrantFiled: January 13, 2012Date of Patent: February 5, 2013Assignee: ABB Research Ltd.Inventors: Alessandro Mattozzi, Patrik Roseen, Robert Espeseth, Gunn-Kristin Sonsteby, Paal Kristian Skryten, Ole Granhaug, Thor Endre, Tom-Rune Bjortuft, Dariusz Bednarowski, Lukasz Malinowski
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Patent number: 8232496Abstract: A switch disconnector is disclosed. The switch disconnector has a main contact point and an arc interruption contact point, of which the main contact point opens before the arc interruption contact point during a disconnection operation and is closed after the arc interruption contact point during connection, with a stationary and a moving contact-piece arrangement, with the stationary contact-piece arrangement having a pot contact piece with contact fingers and with the moving main contact point having a contact cylinder which is connected to a contact mount, and with the arc interruption point having a contact pin as the stationary contact piece and an annular contact piece as the moving contact piece. The contact pin has a section composed of interruption-resistant material, whose external diameter is greater than the external diameter of the rest of the pin area. The contact pin has at least one slot which runs in the longitudinal direction and splits the pin into at least two pin fingers.Type: GrantFiled: April 18, 2006Date of Patent: July 31, 2012Assignee: ABB Technology AGInventors: Ole Granhaug, Jan-Henrik Kuhlefelt, Pal Skryten
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Publication number: 20120178293Abstract: A device for electric connection to an energy supply conductor for medium and/or high voltage having a voltage-carrying element with an outer periphery, and a tubular outer shell with an inner periphery, the outer shell being formed by a polymer, and along at least a part of the axial extension of the element the outer shell extends axially with a space between its inner periphery and the outer periphery of the element, at least along a section of said part of the axial extension of the element the space is filled with a filler of an electrically insulating material other than that of the outer shell. An electric installation including the device, and a method for producing the device.Type: ApplicationFiled: January 13, 2012Publication date: July 12, 2012Inventors: Alessandro Mattozzi, Patrick Roseen, Robert Espeseth, Gunn-Kristin Sonsteby, Paal Kristian Skryten, Ole Granhaug, Thor Endre, Tom-Rune Bjortuft, Dariusz Bednarowski, Lukasz Malinowski
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Publication number: 20120152904Abstract: An encapsulated switchgear that includes a housing defining, an insulating space, and an electrical active part arranged in the insulating space, the insulating space with an insulation medium. The switchgear is characterized in that the insulation medium with a dielectric compound having a boiling point of above ?25° C.Type: ApplicationFiled: December 12, 2011Publication date: June 21, 2012Inventors: Maik Hyrenbach, Ole Granhaug, Max-Steffen Claessens, Per Skarby
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Patent number: 8134089Abstract: A device for electric connection to an energy supply conductor for medium and high voltage, including: a voltage-carrying element; a tubular outer shell formed by a thermoplastic polymer and connected to the voltage carrying element; wherein the voltage-carrying element extends in a longitudinal direction of the tubular shell, and wherein, at least along a part of the length of the voltage-carrying element, the outer shell extends in a longitudinal direction with a space between its inner periphery and an outer periphery of the voltage-carrying element; the outer shell being provided with an outer contact surface to be connected to a wall of a gas-tight container somewhere along the part of the length of the voltage-carrying element; wherein the outer shell is arranged so as to separate said space from an atmosphere outside a container to which the device may be connected.Type: GrantFiled: April 12, 2010Date of Patent: March 13, 2012Assignee: ABB Research Ltd.Inventors: Patrik Roseen, Paal Kristian Skryten, Tom-Rune Bjortuft, Ole Granhaug, Robert Espeseth
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Patent number: 8018317Abstract: The invention relates to a fuse system for a switchgear assembly, especially for a medium voltage switchgear assembly. The fuse system comprises a plurality of fuses which correspond to the number of phases, every fuse having a tripping bar that projects from the face of the fuse under the effect of the force of a spring when the fuse comes into action. A sealing body, with a spring arrangement interposed, pushes a sealing head into the interior of a receptacle receiving the fuse. A two-armed lever is received on the sealing head, one arm covering a tripping mechanism which actuates a power switch.Type: GrantFiled: April 18, 2006Date of Patent: September 13, 2011Assignee: ABB Technology AGInventors: Lars-Johan Lindqvist, Ole Granhaug, Jan-Henrik Kuhlefelt
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Patent number: 7935907Abstract: A contact system for a short-circuiting device for a switchboard, the contact system including at least one fixed contact piece connected to a main voltage source. The contact system also includes at least one moving contact piece and an insulating screen penetrable using the at least one moving contact piece so as to make contact between the at least one moving contact piece and the at least one fixed contact piece. The screen is disposed between the at least one fixed contact piece and the at least one moving contact piece.Type: GrantFiled: January 24, 2007Date of Patent: May 3, 2011Assignee: ABB Technology AGInventors: Robert Espeseth, Ole Granhaug, Jan-Henrik Kuhlefelt, Thor Endre
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Patent number: 7847193Abstract: A current conductor for an electrical device including an electrically conducting central section having a first side and a second side. The central section is configured to receive at least one inserted electrical component. Two electrical conducting shield sections are each disposed on one of the first side and the side and configured to shield against an electric field. The shield sections cover the central section and the at least one inserted electrical component.Type: GrantFiled: January 24, 2007Date of Patent: December 7, 2010Assignee: ABB Technology AGInventors: Robert Espeseth, Ole Granhaug, Silvio Stangherlin, Gerhard Salge, Jan-Henrik Kuhlefelt, Thor Endre
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Publication number: 20100284133Abstract: A method of producing an electric power device including a tubular shell of an electrically insulating polymer in which there is provided a screen of an electrically conducting material, wherein the screen is placed in a mould, the mould is filled with a resin, and the resin is permitted to solidify in the mould. The screen is positioned in the mould such that a peripheral surface thereof is in supporting contact with a part of the mould.Type: ApplicationFiled: May 21, 2010Publication date: November 11, 2010Inventors: Paal Kristian Skryten, Tom-Rune Bjortuft, Robert Espeseth, Ole Granhaug
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Publication number: 20100258347Abstract: A device for electric connection to an energy supply conductor for medium and high voltage, including: a voltage-carrying element; a tubular outer shell formed by a thermoplastic polymer and connected to the voltage carrying element; wherein the voltage-carrying element extends in a longitudinal direction of the tubular shell, and wherein, at least along a part of the length of the voltage-carrying element, the outer shell extends in a longitudinal direction with a space between its inner periphery and an outer periphery of the voltage-carrying element; the outer shell being provided with an outer contact surface to be connected to a wall of a gas-tight container somewhere along the part of the length of the voltage-carrying element; wherein the outer shell is arranged so as to separate said space from an atmosphere outside a container to which the device may be connected.Type: ApplicationFiled: April 12, 2010Publication date: October 14, 2010Inventors: Patrik Roseen, Pal Skryten, Tom-Rune Bjortuft, Ole Granhaug, Robert Espeseth
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Patent number: 7767917Abstract: A load disconnecting circuit is disclosed with a housing that has a first housing section, which houses the drive, and has a second housing section, which houses a fixed contact element and a longitudinally extended moving contact element. The second housing section has a longitudinal extension adapted to the moving contact element. Field-control rings are placed on the second housing section while encircling it, of which the first are arranged in the vicinity of the fixed contact element and the second are arranged in the vicinity of the switch-off position of the moving contact element. Via a respective connection conductor, the first field-control ring is connected to the potential of the fixed contact element, and the second field-control ring is connected to the potential of the moving contact element when in its switch-off position.Type: GrantFiled: April 18, 2006Date of Patent: August 3, 2010Assignee: ABB Technology AGInventors: Ole Granhaug, Jan-Henrik Kuhlefelt, Pal Skryten, Stanley Lohne, Robert Espeseth
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Publication number: 20090314745Abstract: A switch disconnector is disclosed. The switch disconnector has a main contact point and an arc interruption contact point, of which the main contact point opens before the arc interruption contact point during a disconnection operation and is closed after the arc interruption contact point during connection, with a stationary and a moving contact-piece arrangement, with the stationary contact-piece arrangement having a pot contact piece with contact fingers and with the moving main contact point having a contact cylinder which is connected to a contact mount, and with the arc interruption point having a contact pin as the stationary contact piece and an annular contact piece as the moving contact piece. The contact pin has a section composed of interruption-resistant material, whose external diameter is greater than the external diameter of the rest of the pin area. The contact pin has at least one slot which runs in the longitudinal direction and splits the pin into at least two pin fingers.Type: ApplicationFiled: April 18, 2006Publication date: December 24, 2009Applicant: ABB TECHNOLOGYInventors: Ole Granhaug, Jan-Henrik Kuhlefelt, Pal Skryten
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Publication number: 20090065333Abstract: A load disconnecting circuit is disclosed with a housing that has a first housing section, which houses the drive, and has a second housing section, which houses a fixed contact element and a longitudinally extended moving contact element. The second housing section has a longitudinal extension adapted to the moving contact element. Field-control rings are placed on the second housing section while encircling it, of which the first are arranged in the vicinity of the fixed contact element and the second are arranged in the vicinity of the switch-off position of the moving contact element. Via a respective connection conductor, the first field-control ring is connected to the potential of the fixed contact element, and the second field-control ring is connected to the potential of the moving contact element when in its switch-off position.Type: ApplicationFiled: April 18, 2006Publication date: March 12, 2009Applicant: ABB TECHNOLOGY AGInventors: Ole Granhaug, Jan-Henrik Kuhlefelt, Robert Espeseth, Pal Skryten, Stanley Lohne
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Publication number: 20090008229Abstract: A contact system for a short-circuiting device for a switchboard, the contact system including at least one fixed contact piece connected to a main voltage source. The contact system also includes at least one moving contact piece and an insulating screen penetrable using the at least one moving contact piece so as to make contact between the at least one moving contact piece and the at least one fixed contact piece. The screen is disposed between the at least one fixed contact piece and the at least one moving contact piece.Type: ApplicationFiled: January 24, 2007Publication date: January 8, 2009Applicant: ABB TECHNOLOGY AGInventors: Ole Granhaug, Jan-Henrik Kuhlefelt, Thor Endre, Robert Espeseth
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Publication number: 20090000817Abstract: A current conductor for an electrical device including an electrically conducting central section having a first side and a second side. The central section is configured to receive at least one inserted electrical component. Two electrical conducting shield sections are each disposed on one of the first side and the side and configured to shield against an electric field. The shield sections cover the central section and the at least one inserted electrical component.Type: ApplicationFiled: January 24, 2007Publication date: January 1, 2009Applicant: ABB Technology AGInventors: Ole Granhaug, Jan-Henrik Kuhlefelt, Robert Espeseth, Thor Endre, Silvio Stangherlin, Gerhard Salge