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1. 发明授权

US4326230A Circuit for monitoring the voltage stress of a capacitor 失效
标题翻译：用于监测电容器电压应力的电路
公开(公告)号：US4326230A
公开(公告)日：1982-04-20
申请号：US165809
申请日：1980-07-03
申请人： Michael Becker , Klaus Renz , Manfred Weibelzahl , Alfons Fendt , Dusan Povh , Gerhard Schuch , Hermann Waldmann
发明人： Michael Becker , Klaus Renz , Manfred Weibelzahl , Alfons Fendt , Dusan Povh , Gerhard Schuch , Hermann Waldmann
IPC分类号： H02H3/50 , H02H7/16
CPC分类号： H02H3/50 , H02H7/16
摘要： A circuit for monitoring the voltage stress of a capacitor which produces an over-stress indicator signal responsive to the over-voltage history of the capacitor. If the measured voltage stress of the capacitor exceeds a predetermined over-voltage value, a characteristic-curve generator, having a predetermined transfer function, produces an output signal which is responsive to the measured voltage stress of the capacitor and the transfer function of the characteristic-curve generator. This signal is combined with a further signal which is responsive to a predetermined permissible continuous operation voltage value. The combined signals are conducted to an integrator having a predetermined integration time constant for producing an overload signal. The overload signal at the output of the integrator is a measure of the state of stress of the capacitor. Circuitry may be provided for disconnecting the capacitor from a transmission line in response to the output signal of the integrator. Also, plural capacitor voltage stress monitoring stages may be combined to monitor the capacitor voltage stress in a plurality of over-voltage ranges.
摘要翻译：用于监测电容器的电压应力的电路，其产生响应于电容器的过电压历史的过应力指示器信号。如果电容器的测量电压应力超过预定的过电压值，则具有预定传递函数的特性曲线发生器产生响应于测量的电容器的电压和特性的传递函数的输出信号曲线发生器。该信号与响应于预定允许的连续工作电压值的另一信号组合。组合的信号被传导到具有预定积分时间常数的积分器，以产生过载信号。积分器输出端的过载信号是电容器应力状态的测量。可以提供电路，用于响应于积分器的输出信号将电容器与传输线路断开。此外，可以组合多个电容器电压应力监测级以监测多个过电压范围内的电容器电压应力。

2. 发明授权

US4409542A Monitoring system for an LC filter circuit in an AC power network 失效
标题翻译：交流电源网络中LC滤波电路的监控系统
公开(公告)号：US4409542A
公开(公告)日：1983-10-11
申请号：US266279
申请日：1981-05-26
申请人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
发明人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
IPC分类号： G01R31/02 , H02H3/36 , H02H3/44 , H02H7/16 , H03H7/01 , G01R27/00
CPC分类号： H02H3/44 , H02H3/365 , H02H7/16
摘要： A monitoring system for measuring the phase currents of a filter circuit, the monitoring system having current measuring transformers coupled to respective filter sections for suppressing the harmonic content. Voltage measuring transformers are provided for measuring the network phase voltages, each such voltage measuring transformer being coupled to an electronic filter simulator and a filtering section for suppressing harmonic content. The fundamental frequency component of the measured phase currents and the simulated phase currents are conducted to transient comparator circuitry which is coupled to indicating and triggering circuitry having individual counter stages. Only rapid variations between the measured and simulated phase currents will result in fault indications, thereby preventing false indications resulting from variations in temperature.
摘要翻译：一种用于测量滤波器电路的相电流的监测系统，该监测系统具有耦合到相应滤波器部分的用于抑制谐波含量的电流测量变压器。提供电压测量变压器用于测量网络相电压，每个这样的电压测量变压器耦合到电子滤波器模拟器和用于抑制谐波含量的滤波部分。所测量的相电流和模拟相电流的基频分量被传送到瞬态比较器电路，该电路耦合到具有各个计数级的指示和触发电路。测量和模拟相电流之间的快速变化将导致故障指示，从而防止由温度变化引起的错误指示。

3. 发明授权

US4429338A Earth contact monitoring device for a polyphase three-phase filter circuit 失效
标题翻译：用于多相三相滤波电路的接地监测装置
公开(公告)号：US4429338A
公开(公告)日：1984-01-31
申请号：US395187
申请日：1982-07-06
申请人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
发明人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
IPC分类号： H02H3/16 , H02H7/00
CPC分类号： H02H3/165 , H02H7/00
摘要： A monitoring system for detecting earth contact of at least one phase of a polyphase network. Each of the phases in the network is connected by a capacitive-inductive filter to a neutral node which is connected to earth. In one embodiment of the invention, the current flowing from the neutral node to earth is detected by an induction current transformer which provides a signal responsive to said earth current. The output signal of the induction current transformer is conducted through at least one low pass filter for suppressing harmonics, and rectified to produce a direct current voltage signal, the amplitude of which is proportional to the amplitude of the fundamental frequency component of said signal. A fault indicating signal is produced when the direct voltage signal exceeds a predetermined value.
摘要翻译：一种用于检测多相网络的至少一相的接地接触的监测系统。网络中的每个相位通过电容感应滤波器连接到连接到地的中性点。在本发明的一个实施例中，从中性节点流向地的电流由感应电流互感器检测，感应电流互感器提供响应于所述接地电流的信号。感应电流互感器的输出信号通过至少一个用于抑制谐波的低通滤波器传导，并被整流以产生直流电压信号，该直流电压信号的幅度与所述信号的基频分量的振幅成比例。当直流电压信号超过预定值时，产生故障指示信号。

4. 发明授权

US4419621A Monitoring system for the capacitor batteries of a three-phase filter circuit 失效
标题翻译：三相滤波电路的电容电池监控系统
公开(公告)号：US4419621A
公开(公告)日：1983-12-06
申请号：US265459
申请日：1981-05-20
申请人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
发明人： Michael Becker , Alfons Fendt , Dusan Povh , Klaus Renz , Gerhard Schuch , Hermann Waldmann
IPC分类号： G01R31/00 , H02H3/36 , H02H3/44 , H02H7/16 , G01R31/02
CPC分类号： H02H3/365 , H02H3/44 , H02H7/16
摘要： A system for monitoring the capacitor batteries of a three-phase filter circuit. Each capacitor battery is formed of a plurality of parallel legs each having a plurality of sectional capacitors which are connected in series with fuses. Adjacent ones of the sectional capacitors are coupled to one another. In a three-phase system, three capacitor batteries are coupled to one another in a Y-circuit configuration, the Y-circuit node being coupled to a reference potential, illustratively ground. The magnitude and phase of the fundamental frequency component of the current flowing from the Y-circuit node to the reference potential is monitored, variations therein being evaluated to identify defective sectional capacitors. Only variations in the Y-circuit node current which occur rapidly will trigger fault signals, thereby preventing false indications resulting from variations in temperature.
摘要翻译：一种用于监测三相滤波电路的电容器电池的系统。每个电容器电池由多个平行腿构成，每个平行腿具有与保险丝串联连接的多个截面电容器。相邻的分段电容器彼此耦合。在三相系统中，三个电容器电池以Y电路配置彼此耦合，Y电路节点耦合到参考电位，示例性地接地。监视从Y电路节点流向参考电位的电流的基频分量的幅度和相位，评估其中的变化以识别有缺陷的分段电容器。只有迅速发生的Y电路节点电流的变化将触发故障信号，从而防止温度变化引起的错误指示。

5. 发明授权

US4322766A Monitoring device for the capacitor battery of a d-c filter circuit 失效
标题翻译： d-c滤波电路的电容电池监控装置
公开(公告)号：US4322766A
公开(公告)日：1982-03-30
申请号：US165754
申请日：1980-07-03
申请人： Michael Becker , Klaus Renz , Manfred Weibelzahl
发明人： Michael Becker , Klaus Renz , Manfred Weibelzahl
IPC分类号： G01R31/00 , G01R31/01 , H02H7/16 , H02J1/02
CPC分类号： G01R31/028 , H02H7/16
摘要： A circuit for monitoring the capacitor battery of a filter circuit connected to a transmission line, the capacitor battery consisting of at least two parallel legs, each with a number of series-connected capacitors. A first signal is produced which corresponds to the total alternating current flowing through the capacitor battery. A second signal is produced which corresponds to the difference between the currents flowing through the respective parallel legs of the capacitor battery. The current difference signal is compared with a respective fraction of the total current signal. A fault indicator signal is produced if the difference between the difference current signal and the fractional total current signal exceeds a predetermined threshold value. Further circuitry is provided for correcting drift in the difference current signal, which may be caused by temperature variations or acceptable capacitor failures. Automatic ranging circuitry may be provided in embodiments of the invention in which the total capacitor battery current varies in amplitude over a large range.
摘要翻译：一种用于监测连接到传输线的滤波器电路的电容器电池的电路，所述电容器电池由至少两个并联支路组成，每个具有多个串联电容器。产生对应于流过电容器电池的总交流电流的第一信号。产生对应于流过电容器电池的各个平行支路的电流之间的差异的第二信号。将电流差信号与总电流信号的相应部分进行比较。如果差分电流信号和分数总电流信号之间的差超过预定阈值，则产生故障指示符信号。提供了进一步的电路用于校正差分电流信号中的漂移，这可能由温度变化或可接受的电容器故障引起。在本发明的实施例中，可以提供自动测距电路，其中总电容器电池电流的幅度在大范围内变化。

6. 发明授权

US4956739A Device for locating internal faults in a high-voltage capacitor battery 失效
标题翻译：用于定位高压电容器电池内部故障的装置
公开(公告)号：US4956739A
公开(公告)日：1990-09-11
申请号：US372273
申请日：1989-06-27
申请人： Michael Becker , Klaus Renz
发明人： Michael Becker , Klaus Renz
IPC分类号： G01R31/02
CPC分类号： G01R31/02
摘要： A device to locate internal faults in a high-voltage capacitor battery that has a plurality of symmetrically parallel and series-coupled capacitor banks arranged in parallel branches coupled by shunt branches. The phase angles of the shunt currents flowing in the shunt branches relative to the total current flowing in the parallel branches are determined. A fault is located in one of the capacitor banks based upon these determined phase angles.
摘要翻译：一种用于定位高压电容器电池中的内部故障的装置，其具有多个对称并联和串联耦合的电容器组，所述电容器组以并联分支耦合的并行分支排列。确定在分流支路中流动的分流电流相对于在并联支路中流动的总电流的相位角。基于这些确定的相位角，故障位于电容器组之一中。

7. 发明授权

US4713604A Monitoring device for detecting faults in an electrical device, particularly in an LC filter circuit in an AC voltage network 失效
标题翻译：用于检测电气设备中的故障的监控装置，特别是在AC电压网络中的LC滤波器电路中
公开(公告)号：US4713604A
公开(公告)日：1987-12-15
申请号：US721600
申请日：1985-04-10
申请人： Michael Becker , Klaus Renz
发明人： Michael Becker , Klaus Renz
IPC分类号： H02H7/16 , G01R31/02 , H01G1/11 , H02H3/38
CPC分类号： H02H7/16
摘要： A monitoring device connected to an LC filter circuit for determining the occurrence of faults therein includes sensors for measuring the voltage drop across the LC filter circuit and the current flow therethrough. The monitoring device includes simulation circuits for estimating the voltage drop and current flow in response to the actual values of the current flow and voltage drop, respectively. In one position of the double-throw switch, the actual value of the current is compared with an estimated value thereof while in another position of the double-throw switch, an estimated value of the voltage drop is compared with the actual value thereof. Differences between the compared values are detected by a multiplicity of Y-connected limit and counting stages activatable by voltages of different magnitudes and directions for indicating different kinds of faults and for selectively disconnecting the LC filter circuit from a power supply network.
摘要翻译：连接到用于确定故障发生的LC滤波器电路的监视装置包括用于测量LC滤波器电路两端的电压降和通过其的电流的传感器。监测装置包括分别响应于电流和电压降的实际值来估计电压降和电流的仿真电路。在双掷开关的一个位置，将电流的实际值与其估计值进行比较，而在双掷开关的另一位置，将电压降的估计值与其实际值进行比较。通过用于指示不同种类的故障的不同幅度和方向的电压可激活的多个Y连接极限和计数级以及用于选择性地将LC滤波器电路与电源网络断开来检测比较值之间的差异。

8. 发明授权

US4401942A Monitoring system for a capacitor battery in an AC voltage network 失效
标题翻译：交流电压网络中电容器电池的监控系统
公开(公告)号：US4401942A
公开(公告)日：1983-08-30
申请号：US265453
申请日：1981-05-20
申请人： Klaus Renz
发明人： Klaus Renz
IPC分类号： G01R31/00 , H02H3/36 , H02H3/44 , H02H7/16 , G01R11/52
CPC分类号： H02H7/16 , H02H3/365 , H02H3/44
摘要： A monitoring system for a capacitor battery, the capacitor battery having a plurality of parallel legs, each with a plurality of sectional capacitors connected in series with fuses. Adjacent ones of the sectional capacitors are connected to one another by continuous cross lines. Electronic simulation circuitry is provided for producing a signal corresponding to the fundamental frequency component of a simulated capacitor voltage. A transient comparator circuit compares the fundamental frequency component of the simulated capacitor voltage with the fundamental frequency component of a measured capacitor voltage. Only rapid changes between the simulated capacitor voltage and the measured capacitor voltage are signaled as indicative of failures of one or more sectional capacitors in the capacitor battery. Slowly occurring voltage changes, which may correspond to variations in ambient temperature, do not lead to fault signaling.
摘要翻译：一种用于电容器电池的监视系统，所述电容器电池具有多个平行支腿，每个支架具有与保险丝串联连接的多个分段电容器。相邻的分段电容器通过连续的交叉线相互连接。提供电子仿真电路用于产生对应于模拟电容器电压的基频分量的信号。瞬态比较器电路将模拟电容器电压的基频分量与测量的电容器电压的基频分量进行比较。模拟电容器电压和测量的电容器电压之间的快速变化表示为电容器电池中一个或多个分段电容器的故障。可能对应于环境温度变化的缓慢发生的电压变化不会导致故障信号。

9. 发明授权

US3958325A Method and apparatus for making stators for electrical machines 失效
标题翻译：电机定子的方法和装置
公开(公告)号：US3958325A
公开(公告)日：1976-05-25
申请号：US502361
申请日：1974-09-03
申请人： Manfred Rick , Rolf Busch , Klaus Renz , Gunter Weber , Werner Mann , Helmut Schlaich , Ernst Rohm , Rudeger Luders , Manfred Wilhelm
发明人： Manfred Rick , Rolf Busch , Klaus Renz , Gunter Weber , Werner Mann , Helmut Schlaich , Ernst Rohm , Rudeger Luders , Manfred Wilhelm
IPC分类号： H02K15/02 , H02K15/00
CPC分类号： H02K15/024 , Y10T29/49009 , Y10T29/49078
摘要： Annular metallic blanks which consist of packages of interconnected laminae or of sheet metal strips which are coiled edgewise and whose strata are riveted or otherwise secured to each other are converted into stators for electrical machines by cold forming between upper and lower dies and outer and inner calibrating members so that the inner diameter of each blank is increased during cold forming, that the peripheral surface of the stator has two cylindrical portions flanking a convex median portion, and that the outermost portions of the end surfaces of the stator are formed with annular recesses. Prior to cold forming, each blank is subjected to a preliminary shaping treatment including chamfering the axial ends of its internal and peripheral surfaces.
摘要翻译：环形金属坯料由相互连接的薄片或板状金属带组成，沿扁平方向卷绕，其地层铆接或以其他方式固定在一起，通过上下模具之间的冷成型转换成电机的定子，外部和内部校准构件，使得在冷成形期间每个坯料的内径增加，定子的圆周表面具有在中间部分的两侧的两个圆柱形部分，并且定子的端表面的最外部分形成有环形凹部。在冷成形之前，对每个坯料进行预成型处理，包括倒角其内表面和外周表面的轴向端部。

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