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公开(公告)号：US11105205B2
公开(公告)日：2021-08-31
申请号：US14341189
申请日：2014-07-25
摘要： A rotor shaft adapted to rotate about a rotor axis thereof. The rotor shaft includes a rotor cavity configured concentrically to the rotor axis inside the rotor shaft. The rotor shaft further includes a plurality of cooling bores extending radially outward from the rotor cavity to feed cooling air into an internal cooling system in a blade. Each cooling bore includes a bore inlet portion and a distal bore outlet portion. The respective bore inlet portion ends in a plateau, projecting above the outer circumference contour of the rotor cavity. Thus, cooling bore inlets are shifted to a low stress area and the lifetime of the rotor is improved.
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公开(公告)号：US10288279B2
公开(公告)日：2019-05-14
申请号：US15070593
申请日：2016-03-15
发明人： Frederic Geiger , Haider Mirza , Damien Baumann
摘要： A power plant with a fossil fuel fired boiler, an air feed system, flue gas system and condensate system. A unitary flue gas heat exchanger spans a bypass line in the flue gas system and the condensate system so as to improve the thermal efficiency of the power plant while minimising complexity.
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公开(公告)号：US10191090B2
公开(公告)日：2019-01-29
申请号：US15035386
申请日：2014-11-12
发明人： James Blake , Alan Baker , Joseph H. Schaeffer , Michael Putt
摘要： Systems and methods according to these exemplary embodiments provide for methods and systems related to optical current sensors used to monitor standby power transformers, specifically fiber optical current and voltage sensors and, more particularly, to applications involving filters for use in such sensors, such as frequency tracking comb filters. According to one embodiment, a method for monitoring a connection condition of a stand by power transformer includes the steps of measuring a current flowing through a high voltage side of the standby power transformer using at least one optical current sensor disposed proximate to a current flow path of the high voltage side, using a comb filter to filter the measured current, determining whether the filtered, measured current is less than a predetermined threshold value; and generating an alarm indication that the high voltage side of the standby power transformer is unconnected.
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公开(公告)号：US10186389B2
公开(公告)日：2019-01-22
申请号：US14435882
申请日：2013-10-17
发明人： Oana Aitken , Chakib Fnineche
IPC分类号： H01H33/02 , H01H33/12 , H01H1/02 , H01H1/0233 , H01H1/0237 , H01H1/38 , H01H33/78
摘要： Device for making and/or breaking a current including a pair of permanent contacts (3, 4), at least one of the contacts (3, 4) being movable. At least one permanent contact (3, 4) including a main portion (3.1, 4.1) having a free end and an end protection portion (3.2, 4.2) secured to the free end of the main portion (3.1, 4.1), designed to be in mechanical and electrical contact with the other permanent contact (4, 3) only during an operation for opening or closing the pair. The end protection portion (3.2, 4.2) is made of a single transition metal having a melting temperature that is strictly higher than that of the main portion (3.1, 4.1) to which it is secured, or of an oxide or carbide of such a metal, or even of zinc oxide. For application in particular to high- or medium-voltage circuit breakers.
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公开(公告)号：US09906002B2
公开(公告)日：2018-02-27
申请号：US14774169
申请日：2014-03-10
发明人： Patrice Juge
CPC分类号： H02B7/01 , G01R15/06 , H01C1/16 , H01G4/02 , H02B1/015 , H05K1/0296 , H05K1/181 , H05K2201/10022
摘要： The invention provides a RC module (20) for a RC voltage divider for an electrical substation insulated by a dielectric fluid. The RC module (20) comprises first and second plane conductive supports (210a,b) separated from each other in order to co-operate with the dielectric fluid to form a capacitor, when the module equips an electrical substation. The module further comprises at least one resistive element (220a,b) electrically connecting together the first and the second conductive supports (210a,b), the resistive element comprising a printed circuit (222) defining a resistive electric circuit including a plurality of resistive 2-terminal components mounted in series. The invention also provides a resistive element and a voltage divider.
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公开(公告)号：US20180020560A1
公开(公告)日：2018-01-18
申请号：US15548732
申请日：2015-02-09
发明人： Roman RAUBO , Marek RAUBO
CPC分类号： H05K5/0256 , H05K5/0021 , H05K5/0221 , H05K5/0247 , H05K7/02 , H05K7/1432
摘要： The invention relates to an assembly of modules for an electrical circuit comprising: a module support for at least two modules and at least two modules, each module comprising two complementary connectable sub-modules. The module support comprises for each sub-module at least an alignment member adapted to individually align the sub-module during its installation on the module support in such way to connect it to complementary sub-module already installed on the module support to form one of the modules. The invention also relates on a module support, a module and a Flexible Alternative Current Transmission Systems.
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公开(公告)号：US09702922B2
公开(公告)日：2017-07-11
申请号：US13806099
申请日：2011-06-23
申请人： Patrice Juge , Guillaume Granelli
发明人： Patrice Juge , Guillaume Granelli
CPC分类号： G01R31/08 , G01R31/085 , G01R31/1254 , G01R31/1272 , G06F17/00
摘要： A method and a device for locating internal arcing that occurs in a compartment (CPi) of a gas-insulated line (L), each compartment being provided with at least one pressure sensor (Pi). The method comprises: triggering pressure measurements in a compartment as soon as the difference between the currents that flow through two current toroids (TCi) around two adjacent compartments exceeds a threshold value indicating the occurrence of internal arcing in the compartment; calculating a period Δt that separates the time at which the pressure detector began to detect a pressure variation and the time at which the internal arcing occurred; and calculating a distance d that separates the place at which the internal arc is formed from the position of the pressure sensor using the equation d=V/Δt in which V is the speed of sound in the gas.
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公开(公告)号：US09633777B2
公开(公告)日：2017-04-25
申请号：US14364797
申请日：2011-12-20
IPC分类号： H01F27/28 , H01F37/00 , H01F41/066 , H01F5/02
CPC分类号： H01F27/2871 , H01F37/005 , H01F41/066 , H01F2005/022
摘要： Air core reactor includes a coil connected between first and second terminals. The coil is made of a succession of bundles of conductor (B1, B2, B3, . . . , BN) connected in series along an axis between the first terminal and the second terminal. Each bundle is made of one wire wound around the axis to form a multi-layer winding having a cross-section of N winding layers in a direction perpendicular to the axis, from a winding layer of rank 1 which is the closest to the axis to a winding layer of rank N which is the furthest from the axis. Each perpendicular winding layer includes several winding layers in the direction of the axis. The number of axial winding of the perpendicular winding layer of rank j (j=2, . . . , N) is equal or less than the number of axial winding layers of the perpendicular winding layer of rank j−1.
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公开(公告)号：US09562941B2
公开(公告)日：2017-02-07
申请号：US14346294
申请日：2012-09-19
发明人： Raphaël Lebreton
CPC分类号： G01R31/08 , G01R31/027 , G01R31/1254 , G01S5/00 , G01S5/22
摘要： The invention relates to a method and a device for locating an event transmitting a signal, including a set of sensors (Ai-Am) to measure the response times of the said signal, and processing means (3) to solve a system of equations defining distances between the said sensors and the said event as a function of a speed of propagation of the said signal and of an offset of the said response times relative to a reference time, where the device also includes: processing means (3) to recommence multiple times the solution of the system of equations, each time modifying the response time of at least one of the said sensors according to a local variation, and processing means (3) to determine the location of the event as a function of the positions obtained when the different solutions of the system of equations are found.
摘要翻译： 本发明涉及一种用于定位发送信号的事件的方法和装置，包括一组传感器（Ai-Am）以测量所述信号的响应时间，以及处理装置（3），用于求解定义的方程组 所述传感器之间的距离与所述事件之间的距离是所述信号的传播速度和相对于参考时间的所述响应时间的偏移的函数，其中该设备还包括：处理装置（3）重新开始多个 每次根据局部变化修改所述传感器中的至少一个的响应时间，以及处理装置（3），以根据当前所获得的位置的函数来确定事件的位置， 找到方程组的不同解。
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公开(公告)号：US20170023243A9
公开(公告)日：2017-01-26
申请号：US14833449
申请日：2015-08-24
发明人： Daniel J. Adam , Oliver G. Briggs , Thomas J. Campanelli , Paul M. Colson , Christopher D. Curl , Dai Q. Dau , Wendell H. Mills
CPC分类号： F23K3/02 , F15D1/04 , F23D1/00 , F23D2201/101 , F23D2201/20 , F23K2203/008 , F23M11/042
摘要： A head assembly for a pulverized coal nozzle includes removeable wear-resistant inserts having vanes. The vanes may be flat or curved to direct a stream of air and pulverized solid fuel particles from the inlet port toward the outlet port. The curved vanes curve in two dimensions to evenly distribute the stream of air and pulverized solid fuel away from the outer surfaces reducing wear and corrosion. The pipe elbow has a removable cover that allows for easy access. The vanes are attached to a wear-resistant replaceable liner thus allowing them to be easily removed and replaced. The wear-resistant liner may be made from several parts for ease of removal and replacement.
摘要翻译： 用于粉煤喷嘴的头部组件包括具有叶片的可移除的耐磨插入件。 叶片可以是平坦的或弯曲的，以将空气流和粉碎的固体燃料颗粒从入口引导到出口。 弯曲的叶片在两个维度上弯曲，以将空气流和粉碎的固体燃料从外表面均匀分布，从而减少磨损和腐蚀。 管肘具有可拆卸的盖子，可以方便地进入。 叶片连接到耐磨可更换的衬里，从而允许它们容易地移除和更换。 耐磨衬里可以由几个部件制成，以方便拆卸和更换。
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