公开(公告)号：US06433698B1

公开(公告)日：2002-08-13

申请号：US09281012

申请日：1999-03-30

Applicant: Edmund O. Schweitzer, Jr. ,  Kirk S. Thomas

Inventor： Edmund O. Schweitzer, Jr. ,  Kirk S. Thomas

IPC: G08B2100

CPC classification number: G01R19/16509

Abstract: A fault indicator for detecting the occurrence of a fault current in a monitored conductor and providing a light indication thereof includes a rotatably mounted indicator flag. The flag is positioned in either a reset indicating or a fault indicating state by a magnetic pole piece, which is magnetized in one magnetic direction or the other by momentary application of a current in one direction or the other to an actuator winding on the pole piece. A magnetically actuated reed switch in an auxiliary magnetic circuit comprising an auxiliary pole piece magnetized by the actuator winding and a bias magnet magnetically aligned to oppose the reset magnetic orientation and reenforce the trip magnetic orientation of the magnetic pole piece closes upon occurrence of the fault current to connect an internal lithium battery to an LED visible from the exterior of the fault indicator housing.

Abstract translation: 用于检测被监测导体中发生故障电流并提供其指示的故障指示器包括可旋转地安装的指示标志。 标志位于通过磁极片的复位指示或故障指示状态中，该磁极片在一个磁方向上被磁化，或者通过在一个方向上瞬间施加电流而将电流施加到极片上的致动器绕组 。 辅助磁路中的磁力驱动簧片开关，包括由致动器绕组磁化的辅助极片和磁性对准的偏置磁体，以抵抗复位磁性取向并且重新强制磁极片的跳闸磁取向在故障电流发生时闭合 将内部锂电池连接到从故障指示器外壳的外部可见的LED。

公开(公告)号：US6016105A

公开(公告)日：2000-01-18

申请号：US118756

申请日：1998-07-17

Applicant: Edmund O. Schweitzer, Jr.

Inventor： Edmund O. Schweitzer, Jr.

IPC: G01R19/165 ,  G08B21/00

CPC classification number: G01R19/16509

Abstract: A fault indicator for detecting the occurrence of a fault current in a monitored conductor and providing a contact closure and a light indication indicative thereof includes a rotatably mounted indicator flag. The flag is positioned in either a reset indicating or a fault indicating state by a four-pole magnetic pole piece, which is magnetized to an appropriate magnetic orientation by momentary application of a current to an actuator winding on the pole piece. A first magnetically actuated reed switch in an auxiliary magnetic circuit associated with a first pole of the magnetic pole piece and including the actuator winding and a first bias magnet closes upon occurrence of the fault current to connect an internal lithium battery to an LED visible from the exterior of the fault indicator housing. A second magnetically actuated reed switch associated with a second pole of the magnetic pole piece and including the actuator winding and a second bias magnet closes upon occurrence of the fault current for external signaling or control purposes.

Abstract translation: 用于检测被监测导体中发生故障电流并提供接触闭合的故障指示器和指示其的光指示包括可旋转地安装的指示标志。 该标志位于四极磁极片的复位指示或故障指示状态中，该四极磁极片通过瞬间施加电流到极片上的致动器绕组而被磁化到适当的磁性取向。 与磁极片的第一极相关联并且包括致动器绕组和第一偏置磁体的辅助磁路中的第一磁力驱动簧片开关在发生故障电流时闭合，以将内部锂电池连接到从 故障指示器外壳的外部。 与磁极片的第二极相关联并且包括致动器绕组和第二偏置磁体的第二磁力驱动簧片开关在出现用于外部信号或控制目的的故障电流时闭合。

公开(公告)号：US5677678A

公开(公告)日：1997-10-14

申请号：US628087

申请日：1996-04-08

Applicant: Edmund O. Schweitzer, Jr.

Inventor： Edmund O. Schweitzer, Jr.

IPC: G01R15/18 ,  G08B21/00

CPC classification number: G01R15/188

Abstract: A fault indicator is described which indicates the occurrence of a fault current in a monitored electrical conductor. The fault indicator includes a magnetic pole assembly which mounts the housing of the fault indicator to the monitored electrical conductor. The magnetic pole assembly includes both a main outer magnetic core assembly and an auxiliary inner magnetic core assembly. As described, an auxiliary fault sensing winding is disposed on the inner magnetic core assembly so that it becomes energized and provides power for fault circuitry within the fault indicator upon the occurrence of a fault current in the monitored electrical conductor. The fault circuitry positions a flag indicator within the module to visibly acknowledge the occurrence of the fault current in the electrical conductor. As disclosed, two air gaps prevent the inner magnetic core assembly from communicating magnetic flux from the main core assembly to the auxiliary fault sensing winding while a current sufficiently less than a fault current flows within the monitored electrical conductor.

Abstract translation: 描述了故障指示器，其指示在监视的电导体中出现故障电流。 故障指示器包括磁极组件，其将故障指示器的壳体安装到所监视的电导体。 磁极组件包括主外部磁芯组件和辅助内部磁芯组件。 如上所述，辅助故障检测绕组设置在内部磁芯组件上，使得其在受监控的电导体中出现故障电流时被激活并为故障指示器内的故障电路提供电力。 故障电路将模块内的标志指示器置于可视地确认电导体中故障电流的发生。 如所公开的那样，两个气隙防止内部磁芯组件将来自主芯组件的磁通量传递到辅助故障感测绕组，同时充分小于故障电流的电流在所监视的电导体内流动。

公开(公告)号：US5677623A

公开(公告)日：1997-10-14

申请号：US629373

申请日：1996-04-08

Applicant: Edmund O. Schweitzer, Jr.

Inventor： Edmund O. Schweitzer, Jr.

IPC: G01R15/18 ,  G01R19/165 ,  G01R31/02 ,  G01R19/16

CPC classification number: G01R15/183 ,  G01R19/1659 ,  G01R19/16523 ,  G01R31/024

Abstract: A fault indicator is described having a winding disposed on a magnetic pole assembly. The winding delivers energy from a monitored conductor to circuitry of the fault indicator. A series-connected threshold device, such as a four layer bilateral diode or a zener diode, precludes a capacitor from charging during normal current flow in the monitored conductor. The series-connected threshold device, however, breaks down when a fault current flows in the monitored conductor. After break down, the fault current charges the capacitor. A shunt-connected threshold device, such as a zener diode, limits the voltage developed across the capacitor. After its charging phase, the capacitor drives a multivibrator which actuates an LCD, displaying the occurrence of the fault current to an operator. A series-connected threshold device shuts the LCD off when the voltage across the capacitor drops to a sufficiently low level. The arrangement of these electrical components allows the operator to accurately define the duration of time in which the LCD displays the occurrence of the fault current in the monitored conductor.

Abstract translation: 描述了具有设置在磁极组件上的绕组的故障指示器。 绕组将受控导体的能量传送到故障指示器的电路。 诸如四层双向二极管或齐纳二极管的串联连接的阈值器件排除了电容器在被监控的导体中的正常电流期间的充电。 然而，串联连接的阈值器件在故障电流流过被监控的导体时会发生故障。 故障后，故障电流对电容充电。 分流连接的阈值器件，例如齐纳二极管，限制了电容器两端产生的电压。 在充电阶段之后，电容器驱动启动LCD的多谐振荡器，向操作者显示故障电流的发生。 当电容两端的电压下降到足够低的电平时，串联连接的阈值器件关闭LCD。 这些电气部件的布置允许操作者准确地定义LCD在监视的导体中显示故障电流的发生的持续时间。

公开(公告)号：US5008651A

公开(公告)日：1991-04-16

申请号：US551043

申请日：1990-07-09

Applicant: Edmund O. Schweitzer, Jr.

Inventor： Edmund O. Schweitzer, Jr.

IPC: H02H3/04

CPC classification number: H02H3/04

Abstract: A fault indicator operable from an internal battery for indicating the occurrence of a fault current in a monitored electrical conductor of an AC power distribution system. Upon occurrence of a fault current a reed switch in magnetic communication with the monitored conductor momentarily closes to connect the internal battery to a capacitor, which is charged by the battery during the switch closure. The capacitor is connected to the display electrodes of a high impedance liquid crystal display, which displays an "F" to indicate fault occurrence. The fault indication may be reset either by the slow discharge of the capacitor, by discharging the capacitor through a second reed switch manually actuated by a magnetic reset tool from outside the fault indicator housing, or automatically upon restoration of power in the conductor.

Abstract translation: 可从内部电池操作的故障指示器，用于指示在交流配电系统的被监控电导体中出现故障电流。 在发生故障电流时，与被监控导体磁连通的簧片开关瞬间关闭，以将内部电池连接到在开关闭合期间由电池充电的电容器。 电容器连接到高阻抗液晶显示器的显示电极，显示“F”以指示故障发生。 可以通过电容器的缓慢放电来重置故障指示，通过从故障指示器外壳外部由磁性复位工具手动致动的第二簧片开关放电电容器，或者在导体中恢复电力时自动地重置故障指示。

公开(公告)号：US4706016A

公开(公告)日：1987-11-10

申请号：US730752

申请日：1985-05-03

Applicant: Edmund O. Schweitzer, Jr.

Inventor： Edmund O. Schweitzer, Jr.

IPC: G01R15/14 ,  G01R19/00 ,  H02H3/22

CPC classification number: G01R15/146

Abstract: A detector for indicating the occurrence of a surge current in the ground return conductor of a lightning arrestor or other monitored conductor includes two clamps which establish electrical connection with the conductor at two spaced locations along its length. A rectifier circuit develops an actuator signal from the voltage induced between the two locations to activate an electromechanical counter or indicator flag. The clamps are installable on the conductor without access to the ends thereof to facilitate installation of the detector on an existing conductor.

Abstract translation: 用于指示在避雷器或其它监控导体的接地回路导体中发生浪涌电流的检测器包括两个夹具，其在沿其长度的两个间隔位置处与导体建立电连接。 整流电路从两个位置之间感应的电压产生致动器信号，以激活机电计数器或指示标志。 夹具可安装在导体上，无需接近其端部，便于将检测器安装在现有导体上。

公开(公告)号：US5889399A

公开(公告)日：1999-03-30

申请号：US796106

申请日：1997-02-06

Applicant: Edmund O. Schweitzer, Jr.

Inventor： Edmund O. Schweitzer, Jr.

IPC: G01R19/15 ,  G01R19/14 ,  G01R31/02

CPC classification number: G01R19/15 ,  G01R1/22

Abstract: A fault indicator for indicating the occurrence of a fault current in an electrical conductor is mounted on the test point of an elbow connector of the type commonly used in power distribution systems. An integral collar assembly encircles the connector housing to capacitively couple the fault indicator circuitry to the system conductor within the connector. The collar assembly includes an inner magnetic core which establishes the coupling and an outer core which shields the inner core from magnetic fields resulting from fault currents in adjacent conductors.

Abstract translation: 用于指示电导体中发生故障电流的故障指示器安装在配电系统中通常使用的类型的弯头连接器的测试点上。 整体式套环组件围绕连接器外壳，将故障指示器电路电容耦合到连接器内的系统导体。 套环组件包括建立联接件的内部磁芯和将内部磁芯屏蔽在相邻导体中由于故障电流引起的磁场的外部磁芯。

公开(公告)号：US5220311A

公开(公告)日：1993-06-15

申请号：US657503

申请日：1991-02-19

Applicant: Edmund O. Schweitzer, Jr.

Inventor： Edmund O. Schweitzer, Jr.

IPC: G01R31/08 ,  H02H3/04

CPC classification number: G01R31/08 ,  H02H3/042

Abstract: A fault indicator for indicating the occurrence and relative direction of a fault current in a power transmission or distribution system includes a rotatably mounted indicator flag. The indicator flag is actuated 90.degree. clockwise or counterclockwise from a central reset position to up-line indicating or down-line indicating trip positions by a compact magnetic pole piece assembly having three radially extending magnetic pole segments which interact with four magnetic poles on a magnetic armature rotatably coupled to the indicator flag. A pair of magnetic windings magnetize the pole segments upon the occurrence of a fault current to rotate the flag from the reset position. A second pole piece and winding directionally actuated in response to the direction of the fault current determines the direction of rotation of the indicator flag to indicate whether the fault is upline or downline relative to the indicator.

Abstract translation: 用于指示动力传递或分配系统中的故障电流的发生和相对方向的故障指示器包括可旋转地安装的指示标志。 指示标志从中央复位位置顺时针或逆时针旋转90度到上行指示或下行指示跳闸位置，该紧凑型磁极片组件具有三个径向延伸的磁极段，这些磁极段与磁性上的四个磁极相互作用 电枢可旋转地联接到指示器标志。 一对磁绕组在发生故障电流时磁化磁极段，以使标志从复位位置旋转。 响应于故障电流的方向定向致动的第二极靴和绕组确定指示器标志的旋转方向，以指示故障是相对于指示器的上线还是下线。

公开(公告)号：US5180972A

公开(公告)日：1993-01-19

申请号：US828428

申请日：1992-01-31

Applicant: Edmund O. Schweitzer, Jr.

Inventor： Edmund O. Schweitzer, Jr.

IPC: G01R1/04

CPC classification number: G01R1/04 ,  G01R1/22

Abstract: A housing and clamp assembly for mounting a circuit condition monitoring device on a monitored electrical cable includes a body member for housing device circuitry, a first relatively non-resilient clamp arm, and a second relatively resilient clamp arm. The clamp arms are biased closed around the conductor without pre-configuration of the clamp arms by parallel-spaced helical springs, which also serve to hold the cable against an indexing surface on the first clamp arm to minimize the effect of cable diameter on the spacing between the cable and the condition monitoring device and hence the calibration of the monitoring device.

Abstract translation: 用于将电路状态监测装置安装在被监测的电缆上的壳体和夹具组件包括用于容纳装置电路的主体部件，第一相对非弹性的夹紧臂和第二相对弹性的夹紧臂。 夹持臂围绕导体偏置闭合，而不用夹紧臂预先配置平行隔开的螺旋弹簧，这些螺旋弹簧还用于将电缆固定在第一夹臂上的分度表面上，以最小化电缆直径对间距的影响 在电缆和状态监视设备之间，因此监视设备的校准。

公开(公告)号：US5095265A

公开(公告)日：1992-03-10

申请号：US577080

申请日：1990-08-31

Applicant: Edmund O. Schweitzer, Jr.

Inventor： Edmund O. Schweitzer, Jr.

IPC: G01R13/40 ,  G01R19/155

CPC classification number: G01R19/155 ,  G01R13/403

Abstract: An indicator for instantaneously indicating the presence of voltage on a monitored electrical conductor of an AC power distribution system utilizes a high impedance liquid crystal display component providing an "N" display in response to an applied signal. The "N" segment display electrode and associated backplane display electrode are capacitively coupled to the monitored conductor and system ground to provide an "N" display when voltage is present on the conductor.

Abstract translation: 在AC配电系统的被监视的电导体上瞬时表示电压的指示器利用响应于所施加的信号提供“N”显示的高阻抗液晶显示组件。 “N”段显示电极和相关的底板显示电极电容耦合到被监测的导体和系统接地，以在导体上存在电压时提供“N”显示。