序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
21 Switch and its welding method JP2009293462 2009-12-24 JP5323670B2 2013-10-23 寿 松橋; ヒルデブランド アツコ; ボーマス トニー; 建治 網本
A switch comprises a switch housing including a cover, a terminal block welded to the cover and a fixed contact point therein, a moving block provided with a boss for fitting a manual shaft of an automatic transmission and a movable contact point corresponding to the fixed contact point and movable to the switch housing and elastic seal rings interposed between inner and outer peripheral surfaces of each of the terminal block and the cover, and the operation portion. One of the cover or the terminal block is formed of a colored, laser transmissive material and the other is formed of a laser non-transmissive material. The terminal block and the cover are automatically aligned with the moving block by an elastic force of the seal ring and a thermal welding part is circularly formed by means of a laser beam on the side of the outer periphery in each of the terminal block and the cover to be aligned for coupling the terminal block with the cover to fix the alignment.
22 Mems micro switch array-based current-limiting circuit safety device JP2010513167 2007-06-20 JP5120982B2 2013-01-16 プレマーラニ,ウィリアム・ジェームズ; スブラマニアン,カナカサバパティ; オブライエン,キャスリーン・アン; パーク,ジョン・ノートン; クンファー,ブレント・チャールズ
23 Switch and welding method of the same JP2009293462 2009-12-24 JP2010201920A 2010-09-16 MATSUHASHI HISASHI; HILDEBRAND ATSUKO; BORMES ANTHONY; AMIMOTO KENJI
<P>PROBLEM TO BE SOLVED: To make inner soil and spark hardly visible by coloring, while performing heat welding by laser beams using a laser permeable material and a laser non-permeable material. <P>SOLUTION: The switch comprises a switch housing 3 connecting a terminal block 11 and a cover 13 and a moving block 5 provided with a movable contact point 35 corresponding to a fixed contact point 15 and rotatable in relation to the switch housing 3. The cover 13 is formed of the laser permeable material, and the terminal block 11 is formed of the laser non-permeable material. A thin part 30 thinner than other parts is circularly provided to the cover 13 formed of the colored laser permeable material on the outer peripheral side of the switch housing 3. A heat welding part 17 by the laser beams is circularly formed along the thin part 30 for connecting. <P>COPYRIGHT: (C)2010,JPO&INPIT
24 Instantaneous tripping device for breaker JP12497991 1991-04-26 JPH04229524A 1992-08-19 ROBEERU MORERU; MARUKU RIBARU; YUBEERU GARUSHIA
PURPOSE: To provide a tripping device with tripping restriction and selectivity granted by a simple, general and reliable means. CONSTITUTION: A restricting breaker is provided with an insulating case 10. When overpressure occurs in an arc-extinguishing chamber 13 with the operation of arc generated by the current repulsive force of contacts 11, 12, an overpressure-actuating equipment, constituted by a piston 26 and a cylinder 27 is subject to overpressure and actuated by the piston 26 for a tripping rod 23 of the breaker. The overpressure actuating equipment is constituted as an almost leakage-preventive assembly. COPYRIGHT: (C)1992,JPO
25 JPH0440682B2 - JP15334082 1982-09-02 JPH0440682B2 1992-07-03 KAARUUERITSUKU RINDOGUREN
26 Current sense techniques for arc fault and ground fault receptacles US15221877 2016-07-28 US10102984B2 2018-10-16 Saivaraprasad Murahari; Jian Guo Chen; Hongzhi Zhou
The disclosed concept relates generally to current sense techniques and apparatus for arc fault and ground fault receptacles, e.g., circuit interrupters, and, more particularly, to arc fault and ground fault receptacles including a shunt stationary terminal exhibiting both mechanical and electrical functionality. The shunt stationary terminal is composed of a steel or steel alloy and copper or copper alloy composite having a current shunt integrated therein.
27 Gas-insulated switching apparatus US15504532 2015-04-17 US09876336B2 2018-01-23 Nobuyuki Shinohara; Yasuhiro Tsukao; Masato Kawahigashi; Masahiro Fujioka
A gas-insulated switching apparatus of a three-phase-isolated type includes: two first main buses and extending in parallel at an identical height; a first connection bus interconnecting the first main buses; a first divergence bus diverging downward from the first connection bus; and a first circuit breaker connected to the first divergence bus, wherein a connection portion between the first connection bus and the first divergence bus is disposed at a position lower than the height at which the first main buses extend, and a grounding switch is disposed above the connection portion between the first connection bus and the first divergence bus.
28 GAS-INSULATED SWITCHING APPARATUS US15504532 2015-04-17 US20170250527A1 2017-08-31 Nobuyuki SHINOHARA; Yasuhiro TSUKAO; Masato KAWAHIGASHI; Masahiro FUJIOKA
A gas-insulated switching apparatus of a three-phase-isolated type includes: two first main buses and extending in parallel at an identical height; a first connection bus interconnecting the first main buses; a first divergence bus diverging downward from the first connection bus; and a first circuit breaker connected to the first divergence bus, wherein a connection portion between the first connection bus and the first divergence bus is disposed at a position lower than the height at which the first main buses extend, and a grounding switch is disposed above the connection portion between the first connection bus and the first divergence bus.
29 PARTIAL DISCHARGE MEASUREMENT DEVICE US15303936 2015-04-21 US20170038424A1 2017-02-09 Tomomi IKEGAMI; Tetsuo YOSHIMITSU; Takayuki SAKURAI; Tatsuya HIROSE; Satoshi HIROSHIMA; Yuji YAMAMOTO
A partial discharge measurement device includes: an impulse voltage application unit; a measurement control unit; and first and second partial discharge detection unit. The measurement control unit includes: a first and a second detector level partial discharge counting unit; and a partial discharge resistance evaluation unit. Each of the first and the second detector level partial discharge counting units outputs a first or second detection signal when the first or second detection signal exceeds a predetermined specified value. The partial discharge resistance evaluation unit counts the number of occurrences of partial discharge based on an output from the first and second detector level partial discharge counting unit, and regards the impulse voltage value at which the count value has reached a predetermined value as a partial discharge inception voltage under the repeated impulse voltage application.
30 STRUCTURE OF SWITCHGEAR WITH ARC ELIMINATOR US15151420 2016-05-10 US20170018913A1 2017-01-19 Menglei ZHENG
The present invention relates to a structure of a switchgear with an arc protection system including an arc optical sensor to detect an arc, a relay to determine an occurrence or non-occurrence of a fault current by receiving an arc signal detected by the arc optical sensor, and an arc eliminator to earth an arc-generated side bus bar in response to an operating signal with respect to the determined fault current, wherein the arc eliminator has a test position or a service position within the switchgear.
31 Method for testing mainframe performance of different types of partial discharge detectors based on analog voltage signal injection US14760525 2014-08-12 US09513360B2 2016-12-06 Ke Wang; Xianping Zhao; Junyu Dong; Xiangyu Tan; Jing Peng; Enxin Xiang
A method for testing mainframe performance of different types of PD detectors based on analog voltage signal injection, the method comprises: using a function generator (19) with an adjustable output frequency of 0 to 3.5 GHz and an adjustable output amplitude of 0 to 10V, directly injecting or injecting via a DC blocking element (28) with a frequency band of 10 kHz to 10 MHz equivalent analog voltage signals generated by said function generator (19) based on PD waveforms actually tested by a pulse current PD detection sensor (6), an ultrasound PD detection sensor (12,13) and a UHF PD detection sensor (9) into mainframes of a pulse current PD detector, an ultrasound PD detector and a UHF PD detector respectively. The advantages are that the test method is universalized and standardized, the test result is reproducible and measurable, the application scope of the test object is wide, and the test content is comprehensive.
32 Method and apparatus for detection and control of DC arc faults US13453545 2012-04-23 US09478967B2 2016-10-25 Marv Dargatz; Martin Fornage
A method and apparatus for managing DC arc faults. At least a portion of the method is performed by a controller comprising at least one processor. In one embodiment, the method comprises identifying, based on a first signature of a power converter, an arc fault; determining, based on the first signature, a type of the arc fault; and performing an action on the power converter based on the type of the arc fault.
33 Apparatus including a circuit breaker adapted to selectively provide arc flash protection in connection with a wind turbine US14284664 2014-05-22 US09318283B2 2016-04-19 Edmund B. Becker, III; Robert J. Nelson
Apparatus to provide arc flash protection regarding a wind turbine. In one embodiment, a wind turbine (10) includes a wind turbine generator (12) to generate an alternating current power. A transformer (14) has a high-voltage side (16) coupled to a load. A circuit breaker (18) is adapted to selectively reduce arc flash energy available to the wind turbine. The circuit breaker may be arranged to provide circuit interruption between the generator and a low-voltage side (20) of the transformer upon detection of a fault condition. The circuit breaker includes an arc flash protection mode (24) and a normal protection mode (22). In response to a sensed condition, a respective one of the modes may be automatically set so that the circuit breaker can perform the circuit interruption in accordance with the protection functionality of the set mode.
34 APPARATUS INCLUDING A CIRCUIT BREAKER ADAPTED TO SELECTIVELY PROVIDE ARC FLASH PROTECTION IN CONNECTION WITH A WIND TURBINE US14284664 2014-05-22 US20150340180A1 2015-11-26 Edmund B. Becker, III; Robert J. Nelson
Apparatus to provide arc flash protection regarding a wind turbine. In one embodiment, a wind turbine (10) includes a wind turbine generator (12) to generate an alternating current power. A transformer (14) has a high-voltage side (16) coupled to a load. A circuit breaker (18) is adapted to selectively reduce arc flash energy available to the wind turbine. The circuit breaker may be arranged to provide circuit interruption between the generator and a low-voltage side (20) of the transformer upon detection of a fault condition. The circuit breaker includes an arc flash protection mode (24) and a normal protection mode (22). In response to a sensed condition, a respective one of the modes may be automatically set so that the circuit breaker can perform the circuit interruption in accordance with the protection functionality of the set mode.
35 METHOD AND APPARATUS FOR DETECTING AN ARC IN A DC CIRCUIT US14230423 2014-03-31 US20140210485A1 2014-07-31 Johannes Lang; Thomas Wegener; Marcel Kratochvil; Holger Behrends; Michael Viotto
The disclosure relates to a method for detecting an arc in a DC circuit. The method includes measuring and analyzing an AC component (IAC) of a current (I) flowing in the circuit and determining at least one parameter of the AC component (IAC). The level of a DC component (IDC) of the current (I) is varied and a degree of correlation between the level of the DC component (IDC) of the current (I) flowing in the DC circuit and the at least one parameter of the AC component (IAC) is determined. An arc is detected and selectively signaled based on the degree of the determined correlation. The disclosure also relates to an apparatus for carrying out the method and to an inverter comprising such an apparatus.
36 Switch and welding method of same US12379905 2009-03-04 US08080749B2 2011-12-20 Hisashi Matsuhashi; Atsuko Hildebrand; Anthony C. Bormes; Kenji Amimoto
A switch comprises a switch housing including a cover, a terminal block welded to the cover and a fixed contact point therein, a moving block provided with a boss for fitting a manual shaft of an automatic transmission and a movable contact point corresponding to the fixed contact point and movable to the switch housing and elastic seal rings interposed between inner and outer peripheral surfaces of each of the terminal block and the cover, and the operation portion. One of the cover or the terminal block is formed of a colored, laser transmissive material and the other is formed of a laser non-transmissive material. The terminal block and the cover are automatically aligned with the moving block by an elastic force of the seal ring and a thermal welding part is circularly formed by means of a laser beam on the side of the outer periphery in each of the terminal block and the cover to be aligned for coupling the terminal block with the cover to fix the alignment.
37 Apparatus for Shutting Off a Fault Current in a Current-Carrying Line US13054352 2009-07-20 US20110122538A1 2011-05-26 Reinhard Maier
A trigger is provided for switch closing of a dynamic switch that opens under current flow, the trigger being based on a measurement of the current flowing through the switch during burning of an arc. The voltage of the arc is measured or is approximated using an approximation formula for the voltage, and the power is calculated. The power or integrated power, i.e. the energy, through the switch is applied for the triggering.
38 MEMS micro-switch array based on current limiting enabled circuit interrupting apparatus US11764871 2007-06-19 US07903382B2 2011-03-08 William James Premerlani; Kanakasabapathi Subramanian; Kathleen Ann O'Brien; John Norton Park; Brent Charles Kumfer; Parag Thakre
The present invention comprises a micro-electromechanical system (MEMS) micro-switch array based current limiting enabled circuit interrupting apparatus. The apparatus comprising an over-current protective component, wherein the over-current protective component comprises a switching circuit, wherein the switching circuit comprises a plurality of micro-electromechanical system switching devices. The apparatus also comprises a circuit breaker or switching component, wherein the circuit breaker or switching component is in operable communication with the over-current protective component.
39 Arrangement for monitoring electric devices on stray light arcs US10571181 2004-09-09 US07767957B2 2010-08-03 Matthias Viehmann
The invention concerns an arrangement for monitoring electrical equipment for the emergence of accidental arcs. The object is to more reliably recognize the occurrence of an arc on lines, cables and/or contact sites or in devices than has been possible with previously known solutions.The proposed arrangement comprises at least one electrical conductor, which connects devices, subassemblies or circuit components of the piece of electrical equipment with one another, at least one light guide or optical fiber which guides the light arising in the formation of an arc to an optical/electrical transformer, as well as a monitoring and evaluating unit electrically connected with the transformer. The optical fiber envelops one or more wire cores of the above-mentioned electrical conductor and thus simultaneously forms the electrical insulation of a line or the shielding of a cable.
40 COUPLER US12444222 2007-10-05 US20100084187A1 2010-04-08 John Pearson
A coupler that aids in the detection of partial discharge events in a vessel. The coupler comprises a housing for a detector which extends through a wall of the vessel. The housing is sealably connectable to a vessel and is at least partially transparent to electromagnetic radiation. The coupler may be used to allow monitoring of partial discharge events in such vessels as gas and oil insulated subsystems, gas and oil insulated transformers, and gas and oil insulated cables and cable terminations.
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