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公开(公告)号：US1706713A
公开(公告)日：1929-03-26
申请号：US74015124
申请日：1924-09-27
发明人： TRAVERS HENRY A
IPC分类号： H02H3/07
CPC分类号： H02H3/07
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公开(公告)号：US20230275419A1
公开(公告)日：2023-08-31
申请号：US18142391
申请日：2023-05-02
申请人： Hubbell Incorporated
摘要： A wiring device including one or more line terminals and a controller. The controller is configured to, determine a frequency of an input voltage at the one or more line terminals, determine whether the frequency is within a predetermined range, and when the frequency is within the predetermined range, perform a test of the wiring device.
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公开(公告)号：US20200256901A1
公开(公告)日：2020-08-13
申请号：US16617113
申请日：2018-05-25
发明人： Henri TEBOULLE
摘要： A single-phase electric meter having a phase conductor intended to be connected to a phase of an electric line located upstream of the single-phase electric meter and to a phase of an electric installation located downstream of the single-phase electric meter, the single-phase electric meter further including a breaking unit mounted on the phase conductor, an upstream voltage sensor arranged to periodically measure an upstream voltage upstream of the breaking unit, and a processing device arranged to acquire upstream voltage measurements and to open the breaking unit when the upstream voltage drops below a first predetermined threshold voltage.
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公开(公告)号：US10541526B2
公开(公告)日：2020-01-21
申请号：US15340269
申请日：2016-11-01
申请人： Hubbell Incorporated
摘要： A wiring device including an interrupting device, a fault detection circuit, and a testing circuit. The interrupting device electrically connects a line terminal to a load terminal when the interrupting device is in a reset condition and disconnects the line terminal from the load terminal when the interrupting device is in a tripped condition. The fault detection circuit is configured to detect a fault condition and generate a fault detection signal in response to detecting the fault condition, the fault detection signal is provided to the interrupting device to place the interrupting device in the tripped condition. The testing circuit is configured to determine a frequency of an input voltage at the one or more line terminals, perform a first test of the interrupting device at a first period of the frequency, and perform a second test of the fault detection circuit at a second period of the frequency.
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105.发明授权公开(公告)号：US10355523B2
公开(公告)日：2019-07-16
申请号：US15320455
申请日：2014-08-01
发明人： Ji Chen
摘要： A fault type determination method and device of a terminal unit for automation used in a power distribution network are disclosed. The method includes: for each line of incoming lines and outgoing lines of a distribution device, recording the number of faults occurring on the line; after a fault occurs, determining, according to the current and/or voltage on each line, whether automated reclosing is executed, and recording the number of executed automated reclosings; in a fault type determination period, for each line, if the number of faults occurring on the line is greater than the maximum number of automated reclosings allowed by the transformer substation side, or the fault is a repeat fault, then identifying the fault on the line as a permanent fault.
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公开(公告)号：US10177561B2
公开(公告)日：2019-01-08
申请号：US15676196
申请日：2017-08-14
发明人： Zhenxing Zhang , Jiansheng Xu
摘要： A selective protection circuit includes a current-limiting module and a control module, where the current-limiting module includes a switch unit, and the switch unit includes a first end, a second end, and a control end; the first end is connected to a positive electrode of a bus voltage of an HVDC power supply, and the second end is connected to a positive electrode of a power supply of a voltage pre-regulator circuit in a load branch connected to the current-limiting module; the control end is connected to the control module; and the control module is configured to output a control signal to the control end when a value of a total current flowing through the switch unit is greater than or equal to a preset threshold, so as to switch off the switch unit.
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公开(公告)号：US10041839B2
公开(公告)日：2018-08-07
申请号：US14337973
申请日：2014-07-22
摘要： The present disclosure proposes the placing of temperature sensors embedded in the power semiconductor device. In this, at least one of the embedded temperature sensors is placed within or close to the heat source, active areas or channels of the power semiconductor circuit, and at least one of the embedded temperature sensors is placed more apart from the heat source, active areas or channels of the power semiconductor circuit. Furthermore, a new the temperature measurement method is provided, with timing of the temperature measurement and adjusting measurement parameters to appropriate threshold values.
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公开(公告)号：US5734291A
公开(公告)日：1998-03-31
申请号：US613999
申请日：1996-03-11
申请人： Ali Tasdighi , Jerry M. Collings
发明人： Ali Tasdighi , Jerry M. Collings
CPC分类号： H02H3/07
摘要： An integrated circuit voltage converter containing a capacitive charge pump performing DC to DC conversion is disclosed which detects, either automatically or by an external signal, the onset of a low power consumption situation and switches to a low power consumption mode. In one embodiment, the low power consumption mode is accomplished by reducing the operating frequency of the charge pump. In another embodiment, the switching transistors used to switch the capacitors in the charge pump during a low power consumption mode are smaller than those transistors used to switch the capacitors during its normal operating mode. In another embodiment, the DC to DC converter switches back and forth between a high frequency (burst) mode and a low frequency (low power) mode at intervals. In another embodiment, a combination of the power reduction techniques is used. Various techniques for detecting when a low power consumption mode is appropriate are also described.
摘要翻译： 公开了一种包含执行DC-DC转换的电容性电荷泵的集成电路电压转换器，其自动地或通过外部信号检测低功耗情况的开始并切换到低功耗模式。 在一个实施例中，通过降低电荷泵的工作频率来实现低功耗模式。 在另一个实施例中，用于在低功耗模式期间切换电荷泵中的电容器的开关晶体管比用于在正常操作模式期间切换电容器的晶体管小。 在另一个实施例中，DC-DC转换器以间隔在高频（突发）模式和低频（低功率））模式之间来回切换。 在另一个实施例中，使用功率降低技术的组合。 还描述了用于在低功耗模式适合时检测的各种技术。
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109.发明授权Oil filter including replaceable primary and secondary flow filter elements 失效滤油器，包括可更换的一次和二次流量过滤元件
公开(公告)号：US5698097A
公开(公告)日：1997-12-16
申请号：US506563
申请日：1995-09-13
申请人： Hans Gebert , Rolf Mohle , Dietmar Sonntag , Elke Bruss , Dietwart Guntert , Hubert Muller
发明人： Hans Gebert , Rolf Mohle , Dietmar Sonntag , Elke Bruss , Dietwart Guntert , Hubert Muller
IPC分类号： H02H3/08 , B01D24/00 , B01D24/08 , B01D27/02 , B01D29/07 , B01D29/21 , B01D29/54 , B01D35/02 , B01D35/147 , B01D35/153 , F01M11/03 , H02H3/07 , H02H3/087 , H04N7/10
CPC分类号： H02H3/07 , B01D24/004 , B01D29/21 , B01D35/147 , H02H3/087 , H04N7/102 , B01D2201/162 , B01D2201/305 , B01D2201/34 , B01D2201/403 , B01D2201/4084 , F01M11/03 , F01M2001/1014 , F01M2001/1057 , F01M2001/1064 , F01M2001/1092 , F01M2011/033 , Y10S210/13
摘要： An oil filter for internal combustion engines is disclosed herein. The filter includes a housing with a bottom arranged below an open top and a screw-on cover threadedly engaged within the open top. The housing includes an inlet duct, a first oil discharge duct in the bottom of the housing, and a second oil discharge duct in the bottom of the housing and coaxially surrounding the first oil discharge duct. A support part is provided within the housing having a first end which is connected to the cover in an axially force-transmitting manner and a second free end inserted into the first oil discharge duct when the cover fully threadedly engaged to the open end of said housing to sealingly close the first discharge duct, and is withdrawn from the discharge duct when the cover is removed from the open end of the housing to enable discharging of oil from the housing via the first oil discharge duct. The support part supports a primary flow filter element in a lower portion of the housing and a secondary flow filter element in an upper portion of the housing and fluidly connects the primary flow filter to the second discharge duct and the secondary flow filter to the first discharge duct. The cover, the support part, the primary flow filter, and the secondary flow filter can be removed from the housing as a unit. The primary and secondary flow filters are separable from the support part for replacement.
摘要翻译： 本文公开了一种用于内燃机的油过滤器。 过滤器包括具有布置在开口顶部下方的底部的壳体和与敞开顶部螺纹接合的螺旋盖。 壳体包括入口管道，壳体底部的第一排油管道和壳体底部的第二排油管道，同轴地围绕第一排油管道。 支撑部分设置在壳体内，该第一端部以轴向力传递的方式连接到盖子上，第二自由端插入第一排油管道中，当盖体完全螺纹地接合到所述壳体的开口端时 以密封地封闭第一排放管道，并且当盖从壳体的开口端移除时能够从排出管道排出，以使得能够经由第一排油管道从壳体排出油。 支撑部分支撑在壳体的下部中的主要流动过滤元件和在壳体的上部中的二次流过滤元件，并将主流量过滤器与第二排出管道和二次流过滤器流体连接到第一排出口 管。 盖，支撑部分，主流动过滤器和二次流过滤器可以作为一个单元从壳体中移除。 主要和次要流量过滤器可与支撑部分分离以供更换。
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110.发明授权
公开(公告)号：US5589060A
公开(公告)日：1996-12-31
申请号：US117210
申请日：1993-09-14
申请人： Hans Gebert , Rolf M ohle , Dietmar Sonntag , Elke Bruss , Dietwart Guntert , Hubert M uller
发明人： Hans Gebert , Rolf M ohle , Dietmar Sonntag , Elke Bruss , Dietwart Guntert , Hubert M uller
IPC分类号： H02H3/08 , B01D24/00 , B01D24/08 , B01D27/02 , B01D29/07 , B01D29/21 , B01D29/54 , B01D35/02 , B01D35/147 , B01D35/153 , F01M11/03 , H02H3/07 , H02H3/087 , H04N7/10
CPC分类号： H02H3/07 , B01D24/004 , B01D29/21 , B01D35/147 , H02H3/087 , H04N7/102 , B01D2201/162 , B01D2201/305 , B01D2201/34 , B01D2201/403 , B01D2201/4084 , F01M11/03 , F01M2001/1014 , F01M2001/1057 , F01M2001/1064 , F01M2001/1092 , F01M2011/033 , Y10S210/13
摘要： A filter for liquids is disclosed herein. The filter includes a filter housing containing an exchangeable filter element. A support part is provided within the housing that is separable from the at least one filter element and extends at least partly centrally through the interior space of the filter element. A means is provided for releasably attaching one end of said support part to the filter housing. The housing includes first and second radial inner seals for separating a crude space surrounding an exterior of the filter element from a clean space located within interior of the filter element with the radial inner seals being mounted within the housing at the axial ends of the filter element. The filter element is folded star-shaped and sealed on the face side and provided on the inside at each of its two axial ends with a sleeve having an interior portion resting against the radial inner seals. The first radial seal includes an extension portion contained within a groove formed in the support part for separating the crude space from the clean space. An overflow valve is contained within the support part for establishing a flow connection between said crude space and said interior space when a pressure difference therebetween exceeds a predetermined value.
摘要翻译： PCT No.PCT / DE92 / 00228 Sec。 371日期：1993年9月14日 102（e）日期1993年9月14日PCT 1991年3月16日PCT公布。 出版物WO92 / 17262 日期为1992年10月15日本文公开了一种液体过滤器。 过滤器包括容纳可更换过滤元件的过滤器壳体。 支撑部分设置在壳体内，其可与至少一个过滤元件分离并且至少部分地中心延伸穿过过滤元件的内部空间。 设置有用于将所述支撑部分的一端可释放地附接到过滤器壳体的装置。 壳体包括第一和第二径向内部密封件，用于将过滤器元件外部的粗糙空间与位于过滤器元件内部的清洁空间分开，径向内部密封件在过滤元件的轴向端部处安装在壳体内 。 过滤器元件被折叠成星形并且在表面侧上被密封并且在其两个轴向端部的每一个的内侧上设置有具有抵靠径向内部密封件的内部部分的套筒。 第一径向密封件包括容纳在形成在支撑部分中的凹槽内的延伸部分，用于将粗糙空间与清洁空间分离。 在所述支撑部分内装有溢流阀，用于当所述溢流阀之间的压差超过预定值时在所述原油空间与所述内部空间之间形成流动连接。
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