Patents by Inventor Santanu Singha
Santanu Singha 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: 11488741Abstract: The present disclosure relates to a high-voltage (HV) bushing comprising a condenser core configured for surrounding a HV electrical conductor. The condenser core comprises an insulation material comprising wound layers of a permeable solid material impregnated with a thermo-reversible gel. The gel comprises an oil and a thickener, the oil comprising iso-paraffinic oil in an amount within the range of 0.1-100 wt % of the oil and the thickener comprising at least one copolymer in an amount within the range of 0.1-10 wt % of the gel.Type: GrantFiled: March 14, 2019Date of Patent: November 1, 2022Assignee: Hitachi Energy Switzerland AGInventors: Rongsheng Liu, Gerhard Brosig, Santanu Singha, Sung-Woo Cho, Johan Nyberg
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Publication number: 20220106536Abstract: A method of lubricating a bearing, a bearing, and a lubricant with high thermal conductivity including a base oil, a polymeric thickener, and thermally conductive powder particles. The lubricant is, at atmospheric pressure, liquid above a transition temperature and a gel below said transition temperature.Type: ApplicationFiled: August 16, 2021Publication date: April 7, 2022Applicant: Dodge Acquisition Co.Inventors: Jian Qin, Saeed Maleksaeedi, Mikael Unge, Rongsheng Liu, Santanu Singha
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Publication number: 20210308880Abstract: A self-disinfecting robot including an exterior surface. The robot includes at least one light emitting component arranged to illuminate at least a part of the exterior surface with disinfecting light from inside the robot. By projecting disinfecting light from the inside of the robot, one may provide a constant and complete disinfection of the exterior surface (or selected parts of it) e.g. during service or operation, including when the robot is moving around. The solution also allows disinfection of e.g. crevices that would also be difficult to disinfect from the outside. Furthermore, the robot may also, to some extent, treat the surrounding environment and in particular the airborne particles around the robot. The disclosure also relates to a corresponding method for disinfecting a robot, to a computer program and to a computer program product.Type: ApplicationFiled: November 7, 2018Publication date: October 7, 2021Inventors: Frederic Tholence, Erik Johansson, Orlando Girlanda, Santanu Singha
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Publication number: 20200411208Abstract: The present disclosure relates to a high-voltage (HV) bushing comprising a condenser core configured for surrounding a HV electrical conductor. The condenser core comprises an insulation material comprising wound layers of a permeable solid material impregnated with a thermo-reversible gel. The gel comprises an oil and a thickener, the oil comprising iso-paraffinic oil in an amount within the range of 0.1-100 wt % of the oil and the thickener comprising at least one copolymer in an amount within the range of 0.1-10 wt % of the gel.Type: ApplicationFiled: March 14, 2019Publication date: December 31, 2020Inventors: Rongsheng Liu, Gerhard Brosig, Santanu Singha, Sung-Woo Cho, Johan Nyberg
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Patent number: 10714256Abstract: The present invention relates to an electrical device comprising a gas-insulated transformer or reactor. The electrical device comprises a housing enclosing an interior space, at least a portion of which defining an insulation space containing a dielectric insulation fluid comprising an organofluorine compound, and an electrical component being arranged in the insulation space and being surrounded by the insulation fluid. The electrical component comprises at least one winding. The electrical device further comprises an electrical connector for bringing the apparatus from non-operational state to operational state by connecting at least one winding to a power grid. The device further comprises an auxiliary power source which is connectable to at least one winding when the apparatus is in the non-operational state.Type: GrantFiled: January 10, 2017Date of Patent: July 14, 2020Assignee: ABB Power Grids Switzerland AGInventors: Malena Bergsblom, Manoj Pradhan, Roberto Zannol, Santanu Singha, Stephan Schnez, Thorsten Steinmetz, Venkatesulu Bandapalle
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Patent number: 10420240Abstract: A pressure compensated subsea arrangement for housing of electric components. The arrangement includes a pressure compensated housing. The pressure compensated housing is filled with a dielectric liquid. The arrangement includes at least one electric component. The at least one electric component is provided inside the pressure compensated housing. The dielectric liquid is a hydrocarbon dielectric liquid including isoparaffin. There is also provided a method of manufacturing such an arrangement.Type: GrantFiled: June 3, 2015Date of Patent: September 17, 2019Assignee: ABB Schweiz AGInventors: Santanu Singha, Tor Laneryd, Thomas Gradinger, Heinz Lendenmann
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Patent number: 10109388Abstract: The present invention relates to a liquid composition for electrical insulation including a dielectric fluid and an additive, the additive being dissolved in the dielectric fluid and having a 1st excitation energy which is lower than the 1st excitation energy of the dielectric fluid.Type: GrantFiled: December 2, 2013Date of Patent: October 23, 2018Assignee: ABB Research Ltd.Inventors: Mikael Unge, Santanu Singha, Oystein Hestad, Stian Ingebrigtsen, Hans-Sverre Smalo, Per-Olof Astrand, Lars Lundgaard, Dag Linhjell
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Publication number: 20180068758Abstract: An electrically insulating inorganic sheet including at least 90% by weight inorganic particles, and a binder which binds the particles together to form the sheet, for use as solid insulation in an electrical device, e.g. a power transformer.Type: ApplicationFiled: March 17, 2016Publication date: March 8, 2018Inventors: Anneli Jendenmalm, Orlando Girlanda, Pawel Klys, Santanu Singha
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Publication number: 20180020562Abstract: A pressure compensated subsea arrangement for housing of electric components. The arrangement includes a pressure compensated housing. The pressure compensated housing is filled with a dielectric liquid. The arrangement includes at least one electric component. The at least one electric component is provided inside the pressure compensated housing. The dielectric liquid is a hydrocarbon dielectric liquid including isoparaffin. There is also provided a method of manufacturing such an arrangement.Type: ApplicationFiled: June 3, 2015Publication date: January 18, 2018Applicant: ABB Schweiz AGInventors: Santanu Singha, Tor Laneryd, Thomas Gradinger, Heinz Lendenmann
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Patent number: 9786408Abstract: Electrical equipment including insulating fluid and having isoparaffins derived from a renewable carbon source, the fluid having a flash point of at least 210° C. and comprising at least 70 wt % of the isoparaffins. The electrical equipment can be installed and operated subsea.Type: GrantFiled: February 20, 2014Date of Patent: October 10, 2017Assignee: ABB Schweiz AGInventors: Santanu Singha, Gal Brandes, Donald Cherry, Clair Claiborne, Stephane Page
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Publication number: 20170148563Abstract: The present invention relates to an electrical device comprising a gas-insulated transformer or reactor. The electrical device comprises a housing enclosing an interior space, at least a portion of which defining an insulation space containing a dielectric insulation fluid comprising an organofluorine compound, and an electrical component being arranged in the insulation space and being surrounded by the insulation fluid. The electrical component comprises at least one winding. The electrical device further comprises an electrical connector for bringing the apparatus from non-operational state to operational state by connecting at least one winding to a power grid. The device further comprises an auxiliary power source which is connectable to at least one winding when the apparatus is in the non-operational state.Type: ApplicationFiled: January 10, 2017Publication date: May 25, 2017Inventors: Malena Bergsblom, Manoj Pradhan, Roberto Zannol, Santanu Singha, Stephan Schnez, Thorsten Steinmetz, Venkatesulu Bandapalle
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Patent number: 9583237Abstract: A method of manufacturing a polymer-insulated conductor. The method includes the steps of a) providing a conductor having a first cross-sectional shape, b) passing the conductor through a conductor-shaping die to shape the conductor such that the conductor obtains a second cross-sectional shape, wherein frictional heat is developed in the conductor, thereby setting the conductor in a heated state, c) applying molten polymer to the conductor when the conductor is in the heated state to obtain a polymer-coated conductor, and d) shaping the polymer-coated conductor by means of a polymer-shaping die to thereby obtain the polymer-insulated conductor.Type: GrantFiled: September 19, 2014Date of Patent: February 28, 2017Assignee: ABB Schweiz AGInventors: Manoj Pradhan, Thorsten Steinmetz, Venkatesulu Bandapalle, Harald Martini, Adam Michalik, Artur Siwek, Bartlomiej Adamczyk, Jonas Ekeberg, Renata Porebska, Roberto Zannol, Santanu Singha
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Publication number: 20160225493Abstract: A method of manufacturing a polymer-insulated conductor. The method includes the steps of a) providing a conductor having a first cross-sectional shape, b) passing the conductor through a conductor-shaping die to shape the conductor such that the conductor obtains a second cross-sectional shape, wherein frictional heat is developed in the conductor, thereby setting the conductor in a heated state, c) applying molten polymer to the conductor when the conductor is in the heated state to obtain a polymer-coated conductor, and d) shaping the polymer-coated conductor by means of a polymer-shaping die to thereby obtain the polymer-insulated conductor.Type: ApplicationFiled: September 19, 2014Publication date: August 4, 2016Applicant: ABB Technology Ltd.Inventors: Manoj PRADHAN, Thorsten STEINMETZ, Venkatesulu BANDAPALLE, Harald MARTINI, Adam MICHALIK, Artur SIWEK, Bartlomiej ADAMCZYK, Jonas EKEBERG, Renata POREBSKA, Roberto ZANNOL, Santanu SINGHA
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Publication number: 20150364229Abstract: Electrical equipment including insulating fluid and having isoparaffins derived from a renewable carbon source, the fluid having a flash point of at least 210° C. and comprising at least 70 wt % of the isoparaffins. The electrical equipment can be installed and operated subsea.Type: ApplicationFiled: February 20, 2014Publication date: December 17, 2015Inventors: Santanu Singha, Gal Brandes, Donald Cherry, Clair Claiborne, Stephane Page
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Publication number: 20140084226Abstract: The present invention relates to a liquid composition for electrical insulation including a dielectric fluid and an additive, the additive being dissolved in the dielectric fluid and having a 1st excitation energy which is lower than the 1st excitation energy of the dielectric fluid.Type: ApplicationFiled: December 2, 2013Publication date: March 27, 2014Inventors: Mikael Unge, Santanu Singha, Oystein Hestad, Stian Ingebrigtsen, Hans-Sverre Smalo, Per-Olof Astrand
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Publication number: 20050083160Abstract: An insulation system for an oil filled environment having a plurality of insulating units, each of the plurality of insulating units including a first layer of insulating material and a second layer of insulating material. At least one of the first and second layers includes a polymeric material. The insulating units are positioned with respect to each other such that the second layer of one insulating unit is adjacent to the first layer of another insulating unit.Type: ApplicationFiled: October 15, 2003Publication date: April 21, 2005Inventors: George Gao, Cuve Reed, Thangavelu Asokan, Paul Siemers, Santanu Singha