Differential current fault protection for an AC/DC hybrid system and
method therefor
    1.
    发明授权
    Differential current fault protection for an AC/DC hybrid system and method therefor 失效
    AC / DC混合系统的差动电流故障保护及其方法

    公开(公告)号:US5523938A

    公开(公告)日:1996-06-04

    申请号:US485407

    申请日:1995-06-07

    IPC分类号: H02H3/28 H02H7/125 H02H3/18

    CPC分类号: H02H7/1255 H02H3/28

    摘要: A system of protection for an AC/DC hybrid electric power generation and distribution system having an AC portion comprising at least one source of AC power producing AC current coupled by first power feeders to a DC portion comprising at least one AC to DC converter producing DC current, the DC current being coupled by second power feeders to utilization equipment, comprises AC current sensors producing current sense signals proportional in magnitude to the AC current and DC current sensors producing current sense signals proportional in magnitude to the DC current. The AC current sensors define an entrance to a zone of protection, and the DC current sensors define an exit from the zone of protection. The AC and DC current sense signals are relationally compared to detect the presence of a differential current fault within the zone of protection. The protection system further discriminates the location of the fault between the AC portion and the DC portion of the hybrid power system by monitoring the ripple content in the sensed AC current. The relationship function utilized varies with the type of AC to DC conversion equipment to compensate for the power loss and transformer step up or down ratio (if used) to ensure tracking of the current level between AC current and DC output current. In addition to differential current fault protection, the instant invention detects shorted and open rectifiers, phases, and sensors.

    摘要翻译: 一种用于具有AC部分的AC / DC混合发电和配电系统的保护系统,所述AC部分包括至少一个AC功率源,其产生由第一馈电线耦合到DC部分的AC电流,所述DC部分包括至少一个AC至DC转换器,DC转换器产生DC 电流,由第二馈电器耦合到利用设备的直流电流包括交流电流传感器,其产生与AC电流和DC电流传感器成正比的电流检测信号,产生与DC电流大小成正比的电流检测信号。 交流电流传感器定义了保护区的入口,直流电流传感器定义了保护区的出口。 交流和直流电流检测信号被相互比较,以检测保护区内的差动电流故障的存在。 该保护系统通过监视感测的交流电流中的纹波含量来进一步鉴别混合动力系统的交流部分和直流部分之间的故障位置。 所使用的关系函数随着AC到DC转换设备的类型而变化,以补偿功率损耗和变压器升压比(如果使用),以确保跟踪交流电流和直流输出电流之间的电流水平。 除了差动电流故障保护之外,本发明还检测短路和开路整流器,相位和传感器。

    NAPHTHYL-CONTAINING COMPOUNDS FOR LIGHT-EMITTING DEVICES
    4.
    发明申请
    NAPHTHYL-CONTAINING COMPOUNDS FOR LIGHT-EMITTING DEVICES 有权
    用于发光装置的含萘的化合物

    公开(公告)号:US20150119582A1

    公开(公告)日:2015-04-30

    申请号:US14399620

    申请日:2013-05-08

    申请人: Carl WAGNER

    发明人: Carl Wagner

    摘要: Naphthyl-containing compounds having structural formula S2R for use in organic light-emitting diodes (OLEDs). R may include an aromatic group, a heterocyclic group, or a group that is both aromatic and heterocylic. In some examples, R is phenyl, biphenyl, and thiophenyl. OLEDs including these compounds are shown to emit in a range between 400 nm and 700 nm. These OLEDs are suitable for devices including televisions, laptop computers, computer monitors, personal digital assistants, mobile phones, portable media players, watches, test devices, advertising displays, information displays, indication displays, and large-area light-emitting elements for general illumination.

    摘要翻译: 用于有机发光二极管(OLED)的具有结构式S2R的含萘基化合物。 R可以包括芳族基团,杂环基团或芳族和杂环基团。 在一些实例中,R是苯基,联苯基和噻吩基。 包括这些化合物的OLED显示在400nm和700nm之间的范围内发射。 这些OLED适用于包括电视机,笔记本电脑,计算机显示器,个人数字助理,移动电话,便携式媒体播放器,手表,测试装置,广告显示器,信息显示器,指示显示器和用于一般的大面积发光元件 照明。

    Guide rod for tube shank instruments to be introduced into a body cavity
    6.
    发明授权
    Guide rod for tube shank instruments to be introduced into a body cavity 失效
    用于管柄仪器的导杆被引入体腔

    公开(公告)号:US06623502B2

    公开(公告)日:2003-09-23

    申请号:US09829060

    申请日:2001-04-09

    IPC分类号: A61B1734

    摘要: The invention relates to a guide rod for tube shank instruments to be introduced into a body cavity which is characterised by at least two telescopic rod parts, whose ends which neighbor given the largest possible rod length, are releasably lockable with a positive or non-positive fit and whose extension movement is limited by an abutment.

    摘要翻译: 本发明涉及一种用于管状杆件的引导杆,其被引入体腔中,其特征在于至少两个伸缩杆部件,其端部相对于最大可能的杆长度相邻,可释放地以正的或非正的方式锁定 其伸展运动受到支座的限制。

    Naphthyl-containing compounds for light-emitting devices
    8.
    发明授权
    Naphthyl-containing compounds for light-emitting devices 有权
    用于发光器件的含萘基化合物

    公开(公告)号:US09130172B2

    公开(公告)日:2015-09-08

    申请号:US14399620

    申请日:2013-05-08

    申请人: Carl Wagner

    发明人: Carl Wagner

    摘要: Naphthyl-containing compounds having structural formula S2R for use in organic light-emitting diodes (OLEDs). R may include an aromatic group, a heterocyclic group, or a group that is both aromatic and heterocylic. In some examples, R is phenyl, biphenyl, and thiophenyl. OLEDs including these compounds are shown to emit in a range between 400 nm and 700 nm. These OLEDs are suitable for devices including televisions, laptop computers, computer monitors, personal digital assistants, mobile phones, portable media players, watches, test devices, advertising displays, information displays, indication displays, and large-area light-emitting elements for general illumination.

    摘要翻译: 用于有机发光二极管(OLED)的具有结构式S2R的含萘基化合物。 R可以包括芳族基团,杂环基团或芳族和杂环基团。 在一些实例中,R是苯基,联苯基和噻吩基。 包括这些化合物的OLED显示在400nm和700nm之间的范围内发射。 这些OLED适用于包括电视机,笔记本电脑,计算机显示器,个人数字助理,移动电话,便携式媒体播放器,手表,测试装置,广告显示器,信息显示器,指示显示器和用于一般的大面积发光元件 照明。