Patents by Inventor Navid Mahdizadeh
Navid Mahdizadeh 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: 10825576Abstract: The present invention relates to an apparatus for the generation, the distribution and/or the usage of electrical energy. The apparatus comprises a housing enclosing an insulating space and an electrically conductive part arranged in the insulating space, said insulating space containing a dielectric insulation medium, at least a portion of which being in the form of an insulation gas comprising an organofluorine compound. According to the invention, at least some of the components of the apparatus that are directly exposed to the insulation gas are made of a material which remains unaltered during exposure to the insulation gas for a period of more than 1 year at operational conditions and/or have a surface, at least a portion of which is devoid of any nucleophilic group reactive towards the organofluorine compound and/or reactive towards any degradation product thereof at operational conditions.Type: GrantFiled: April 6, 2016Date of Patent: November 3, 2020Assignee: ABB POWER GRIDS SWITZERLAND AGInventors: Anna Di-Gianni, Bernhard vonAllmen, Denis Tehlar, Navid Mahdizadeh, Thomas Alfred Paul
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Patent number: 10522981Abstract: The present invention relates to an electrical apparatus for generation, transmission, distribution and/or usage of electrical energy, comprising a housing enclosing an electrical apparatus interior space, at least a portion of which forms at least one insulation space having an electrical component and containing a surrounding insulation medium comprising an amount of carbon dioxide mco2. The insulation space is formed by at least one insulation space compartment, in which an adsorber for reducing or eliminating the amount of water mH2O and optionally further contaminants from the insulation medium is arranged. The amount of adsorber mads arranged in the at least one insulation space compartment complies with the formulae (I) and (II). m ads ? m H 2 ? O k ads , H 2 ? O ( I ) m ads ? 0.Type: GrantFiled: May 12, 2016Date of Patent: December 31, 2019Assignee: ABB Schweiz AGInventors: Denis Tehlar, Navid Mahdizadeh, Thomas Alfred Paul
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Patent number: 9903903Abstract: A method for deriving at least one operating parameter of a fluid-insulated electrical apparatus, in particular of gas-insulated switchgear. The operating parameter is dependent on a dielectric breakdown strength of an insulation fluid of the electrical apparatus. The insulation fluid includes at least three components that are assigned to at least a first and a second component group such that at least one component group comprises at least two components. The component groups differ in their weighted average values of the molecular masses of the components in the respective component groups. At least one quantity which is indicative of the concentration of the first component group and of the concentration of the second component group is determined from the insulation fluid, e.g. by measuring one or more measurement variables with one or more sensors. The operating parameter is then derived using the at least one quantity.Type: GrantFiled: June 13, 2014Date of Patent: February 27, 2018Assignee: ABB Technology AGInventors: Axel Kramer, Thomas Alfred Paul, Navid Mahdizadeh, Nitesh Ranjan
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Patent number: 9590397Abstract: An apparatus for the generation, the distribution or the usage of electrical energy, the apparatus including a housing enclosing an insulating space and an electrical component arranged in the insulating space. The insulating space contains a dielectric insulation gas including an organofluorine compound A. The apparatus further includes a molecular sieve arranged such as to come into contact with the insulation gas. The molecular sieve has an average pore size y greater than the molecular size of at least one decomposition product of the organofluorine compound A generated during operation of the apparatus. The adsorption capability of the molecular sieve for organofluorine compound A is lower than for the at least one decomposition product. The apparatus further includes at least one desiccant arranged such as to come into contact with the insulation gas.Type: GrantFiled: April 6, 2015Date of Patent: March 7, 2017Assignee: ABB Technology AGInventors: Thomas Alfred Paul, Navid Mahdizadeh, Patrick Stoller, Axel Kramer, Oliver Cossalter, Stephan Grob, Nitesh Ranjan, Javier Mantilla, Mathias-Dominic Buergler, Francia Galindo-Lozano
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Publication number: 20160261095Abstract: The present invention relates to an electrical apparatus for generation, transmission, distribution and/or usage of electrical energy, comprising a housing enclosing an electrical apparatus interior space, at least a portion of which forms at least one insulation space having an electrical component and containing a surrounding insulation medium comprising an amount of carbon dioxide mco2. The insulation space is formed by at least one insulation space compartment, in which an adsorber for reducing or eliminating the amount of water mH2O and optionally further contaminants from the insulation medium is arranged. The amount of adsorber mads arranged in the at least one insulation space compartment complies with the formulae (I) and (II). m ads ? m H 2 ? O k ads , H 2 ? O ( I ) m ads ? 0.Type: ApplicationFiled: May 12, 2016Publication date: September 8, 2016Inventors: Denis Tehlar, Navid Mahdizadeh, Thomas Alfred Paul
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Publication number: 20160225486Abstract: The present invention relates to an apparatus for the generation, the distribution and/or the usage of electrical energy. The apparatus comprises a housing enclosing an insulating space and an electrically conductive part arranged in the insulating space, said insulating space containing a dielectric insulation medium, at least a portion of which being in the form of an insulation gas comprising an organofluorine compound. According to the invention, at least some of the components of the apparatus that are directly exposed to the insulation gas are made of a material which remains unaltered during exposure to the insulation gas for a period of more than 1 year at operational conditions and/or have a surface, at least a portion of which is devoid of any nucleophilic group reactive towards the organofluorine compound and/or reactive towards any degradation product thereof at operational conditions.Type: ApplicationFiled: April 6, 2016Publication date: August 4, 2016Inventors: Anna Di-Gianni, Bernhard vonAllmen, Denis Tehlar, Navid Mahdizadeh, Thomas Alfred Paul
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Publication number: 20160043533Abstract: A process for providing a contamination-reducing component to an electrical apparatus, the electrical apparatus including a housing enclosing an insulating space and an electrical component arranged in the insulating space, the insulating space including an insulation medium which includes or consists of carbon dioxide. The process includes the steps of presaturating the contamination-reducing component with carbon dioxide before placing it inside the electrical apparatus.Type: ApplicationFiled: October 22, 2015Publication date: February 11, 2016Inventors: Denis Tehlar, Navid Mahdizadeh, Patrick Stoller, Thomas Alfred Paul
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Patent number: 9257213Abstract: A dielectric insulation medium including sulphur hexafluoride (SF6) and/or tetrafluoro methane (CF4), in a mixture with at least one further component being an at least partially fluorinated fluoroketone.Type: GrantFiled: February 15, 2013Date of Patent: February 9, 2016Assignee: ABB TECHNOLOGY AGInventors: Mathias Ingold, Thomas Alfred Paul, Javier Mantilla, Oliver Cossalter, Judith Kessler, Navid Mahdizadeh
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Patent number: 9172221Abstract: A converter building including at least one room having a solid room wall enclosing an interior space and an electrical active part contained in the interior space, the room wall having at least one opening, which is designed such that it allows a human to enter the interior space. The opening is sealable, the room wall encloses the interior space in a gas-tight manner when the opening is sealed, and the interior space contains a dielectric insulation medium including a dielectric insulation component other than air.Type: GrantFiled: June 17, 2013Date of Patent: October 27, 2015Assignee: ABB Technology AGInventors: Peter Terwiesch, Navid Mahdizadeh, Mats Hyttinen, Goran Eriksson, Axel Kramer, Staffan Norrga, Thomas Alfred Paul, Uwe Riechert, Jan Svensson, Frans Dijkhuizen, Ingold Mathias
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Publication number: 20150214701Abstract: An apparatus for the generation, the distribution or the usage of electrical energy, the apparatus including a housing enclosing an insulating space and an electrical component arranged in the insulating space. The insulating space contains a dielectric insulation gas including an organofluorine compound A. The apparatus further includes a molecular sieve arranged such as to come into contact with the insulation gas. The molecular sieve has an average pore size y greater than the molecular size of at least one decomposition product of the organofluorine compound A generated during operation of the apparatus. The adsorption capability of the molecular sieve for organofluorine compound A is lower than for the at least one decomposition product. The apparatus further includes at least one desiccant arranged such as to come into contact with the insulation gas.Type: ApplicationFiled: April 6, 2015Publication date: July 30, 2015Inventors: Thomas Alfred Paul, Navid Mahdizadeh, Patrick Stoller, Axel Kramer, Oliver Cossalter, Stephan Grob, Nitesh Ranjan, Javier Mantilla, Mathias-Dominic Buergler, Francia Galindo-Lozano
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Publication number: 20150206621Abstract: An electrical insulator for an electrical apparatus, the insulator including a body containing an electrical insulating solid material and non-solid inclusions dispersed within the body. At least a portion of the inclusions include at least one organofluorine compound having a lower Global Warming Potential than SF6.Type: ApplicationFiled: April 1, 2015Publication date: July 23, 2015Inventors: Navid Mahdizadeh, Patrick Stoller, Denis Tehlar, Anna Di Gianni
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Publication number: 20140306718Abstract: A method for deriving at least one operating parameter of a fluid-insulated electrical apparatus, in particular of gas-insulated switchgear. The operating parameter is dependent on a dielectric breakdown strength of an insulation fluid of the electrical apparatus. The insulation fluid includes at least three components that are assigned to at least a first and a second component group such that at least one component group comprises at least two components. The component groups differ in their weighted average values of the molecular masses of the components in the respective component groups. At least one quantity which is indicative of the concentration of the first component group and of the concentration of the second component group is determined from the insulation fluid, e.g. by measuring one or more measurement variables with one or more sensors. The operating parameter is then derived using the at least one quantity.Type: ApplicationFiled: June 13, 2014Publication date: October 16, 2014Inventors: Axel Kramer, Thomas Alfred Paul, Navid Mahdizadeh, Nitesh Ranjan
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Patent number: 8822868Abstract: A simplified construction of a gas-insulated high-power circuit breaker with a saving of components is achieved by at least one hole and at least one leaf spring, which is fastened on one side and is elastically bendable in dependence upon the pressure of the insulating gas in the compression volume, being formed in a valve plate of the valve. The bendable spring closes off the hole when the circuit breaker closes and opens it when the circuit breaker opens as soon as the pressure of the compressed insulating gas in the compression volume exceeds the value of the gas pressure in the low-pressure chamber by at least two bar.Type: GrantFiled: September 17, 2013Date of Patent: September 2, 2014Assignee: ABB Technology AGInventors: Timo Kehr, Olaf Hunger, Jurg Nufer, Daniel Ohlsson, Navid Mahdizadeh, Javier Mantilla, Stephan Grob, Mathias-Dominic Buergler, Nicola Gariboldi
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Patent number: 8822870Abstract: A dielectric insulation medium including a fluoroketone containing 5 carbon atoms, in a mixture with a dielectric insulation gas component different from the fluoroketone, in particular air or an air component, the dielectric insulation medium, in particular the dielectric insulation gas, having a non-linearly increased dielectric strength that is larger than a sum of dielectric strengths of the gas components of the dielectric insulation medium.Type: GrantFiled: June 14, 2013Date of Patent: September 2, 2014Assignee: ABB Technology Ltd.Inventors: Javier Mantilla, Max-Steffen Claessens, Nicola Gariboldi, Stephan Grob, Per Skarby, Thomas Alfred Paul, Navid Mahdizadeh
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Patent number: 8709303Abstract: A dielectric insulation medium including a hydrofluoro monoether, the hydrofluoro monoether containing at least three carbon atoms. The insulation medium according has high insulation capabilities, in particular a high dielectric strength, and at the same time a low GWP. The invention further includes an insulation medium which is chemically and thermally stable also at temperatures above 140° C., which is non-toxic or has a low toxicity level, and which in addition is non-corrosive and non-explosive.Type: GrantFiled: June 14, 2013Date of Patent: April 29, 2014Assignee: ABB Research Ltd.Inventors: Navid Mahdizadeh, Thomas Alfred Paul, Judith Kessler, Markus Bujotzek, Patrick Stoller, Max-Steffen Claessens, Per Skarby
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Publication number: 20140014623Abstract: A simplified construction of a gas-insulated high-power circuit breaker with a saving of components is achieved by at least one hole and at least one leaf spring, which is fastened on one side and is elastically bendable in dependence upon the pressure of the insulating gas in the compression volume, being formed in a valve plate of the valve. The bendable spring closes off the hole when the circuit breaker closes and opens it when the circuit breaker opens as soon as the pressure of the compressed insulating gas in the compression volume exceeds the value of the gas pressure in the low-pressure chamber by at least two bar.Type: ApplicationFiled: September 17, 2013Publication date: January 16, 2014Inventors: Timo Kehr, Olaf Hunger, Jurg Nufer, Daniel Ohlsson, Navid Mahdizadeh, Javier Mantilla, Stephan Grob, Mathias-Dominic Buergler, Nicola Gariboldi
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Publication number: 20130277334Abstract: A dielectric insulation medium including a fluoroketone containing 5 carbon atoms, in a mixture with a dielectric insulation gas component different from the fluoroketone, in particular air or an air component, the dielectric insulation medium, in particular the dielectric insulation gas, having a non-linearly increased dielectric strength that is larger than a sum of dielectric strengths of the gas components of the dielectric insulation medium.Type: ApplicationFiled: June 14, 2013Publication date: October 24, 2013Inventors: Javier Mantilla, Max-Steffen Claessens, Nicola Gariboldi, Stephan Grob, Per Skarby, Thomas Alfred Paul, Navid Mahdizadeh
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Publication number: 20130277438Abstract: A converter building including at least one room having a solid room wall enclosing an interior space and an electrical active part contained in the interior space, the room wall having at least one opening, which is designed such that it allows a human to enter the interior space. The opening is sealable, the room wall encloses the interior space in a gas-tight manner when the opening is sealed, and the interior space contains a dielectric insulation medium including a dielectric insulation component other than air.Type: ApplicationFiled: June 17, 2013Publication date: October 24, 2013Inventors: Peter Terwiesch, Navid Mahdizadeh, Mats Hyttinen, Goran Eriksson, Axel Kramer, Staffan Norrga, Thomas Alfred Paul, Uwe Riechert, Jan Svensson, Frans Dijkhuizen, Ingold Mathias
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Publication number: 20130265692Abstract: A dielectric insulation medium including a hydrofluoro monoether, the hydrofluoro monoether containing at least three carbon atoms. The insulation medium according has high insulation capabilities, in particular a high dielectric strength, and at the same time a low GWP. The invention further includes an insulation medium which is chemically and thermally stable also at temperatures above 140° C., which is non-toxic or has a low toxicity level, and which in addition is non-corrosive and non-explosive.Type: ApplicationFiled: June 14, 2013Publication date: October 10, 2013Inventors: Navid Mahdizadeh, Thomas Alfred Paul, Judith Marold, Markus Bujotzek, Patrick Stoller, Max-Steffen Claessens, Per Skarby
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Publication number: 20130221292Abstract: A dielectric insulation medium including sulphur hexafluoride (SF6) and/or tetrafluoro methane (CF4), in a mixture with at least one further component being an at least partially fluorinated fluoroketone.Type: ApplicationFiled: February 15, 2013Publication date: August 29, 2013Inventors: Mathias Ingold, Thomas Alfred Paul, Javier Mantilla, Oliver Cossalter, Judith Kessler, Navid Mahdizadeh