会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Circuit for monitoring the voltage stress of a capacitor
    • 用于监测电容器电压应力的电路
    • US4326230A
    • 1982-04-20
    • US165809
    • 1980-07-03
    • Michael BeckerKlaus RenzManfred WeibelzahlAlfons FendtDusan PovhGerhard SchuchHermann Waldmann
    • Michael BeckerKlaus RenzManfred WeibelzahlAlfons FendtDusan PovhGerhard SchuchHermann Waldmann
    • H02H3/50H02H7/16
    • H02H3/50H02H7/16
    • 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.
    • 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。
    • 6. 发明授权
    • Monitoring device for detecting faults in an electrical device,
particularly in an LC filter circuit in an AC voltage network
    • 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
    • US4713604A
    • 1987-12-15
    • US721600
    • 1985-04-10
    • Michael BeckerKlaus Renz
    • Michael BeckerKlaus Renz
    • H02H7/16G01R31/02H01G1/11H02H3/38
    • H02H7/16
    • 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.
    • 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。
    • 7. 发明授权
    • Monitoring device for the capacitor battery of a d-c filter circuit
    • d-c滤波电路的电容电池监控装置
    • US4322766A
    • 1982-03-30
    • US165754
    • 1980-07-03
    • Michael BeckerKlaus RenzManfred Weibelzahl
    • Michael BeckerKlaus RenzManfred Weibelzahl
    • G01R31/00G01R31/01H02H7/16H02J1/02
    • G01R31/028H02H7/16
    • 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.
    • 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。