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    • 1. 发明申请
    • Method and Device for Improved Detection and Analysis of Partial Discharge Activity in and Around High Voltage Electrical Equipment
    • 用于改进高压电气设备及其周围部分放电活动检测和分析的方法和装置
    • US20120077444A1
    • 2012-03-29
    • US13258102
    • 2010-03-24
    • Scott McMeekinBrian G. StewartStephen ConnerCarlos GamioAlan Nesbitt
    • Scott McMeekinBrian G. StewartStephen ConnerCarlos GamioAlan Nesbitt
    • H04B17/00
    • G01R19/0053G01R31/1272
    • Apparatus for processing broadband impulses signals of low repetition rate includes a tuner for receiving broadband impulsive signals of low repetition rate and providing an output signal characteristic of the amplitude and spectral content of the received input signal. Resolution bandwidth filters coupled to the tuner output each have a different bandwidth that determines the measurement resolution and influences the sensitivity and transient response to low repetition rate impulsive signals. At least one radio frequency switch selects a resolution bandwidth filter for coupling to and associated one of at least a peak detector, an average detector and an envelope generator. A gate generator coupled to the peak detector, the average detector and the envelope generator furnishes a gating signal to each to provide a peak signal, an average signal and an envelope signal respectively during a selected gating interval. A microprocessor is coupled to the peak detector and the average detector.
    • 用于处理低重复频率的宽带脉冲信号的装置包括用于接收低重复率的宽带脉冲信号的调谐器,并提供所接收的输入信号的幅度和频谱内容特性的输出信号。 耦合到调谐器输出的分辨率带宽滤波器各自具有不同的带宽,其确定测量分辨率并且影响对低重复率脉冲信号的灵敏度和瞬态响应。 至少一个射频开关选择用于耦合到至少峰值检测器,平均检测器和包络发生器中的一个的分辨率带宽滤波器。 耦合到峰值检测器的栅极发生器,平均检测器和包络发生器提供门控信号,以分别在选定的门控间隔期间提供峰值信号,平均信号和包络信号。 微处理器耦合到峰值检测器和平均检测器。
    • 2. 发明授权
    • Method and device for improved detection and analysis of partial discharge activity in and around high voltage electrical equipment
    • 用于改进高压电气设备及其周围部分放电活动的检测和分析的方法和装置
    • US08792542B2
    • 2014-07-29
    • US13258102
    • 2010-03-24
    • Scott McMeekinBrian G. StewartStephen ConnerCarlos GamioAlan Nesbitt
    • Scott McMeekinBrian G. StewartStephen ConnerCarlos GamioAlan Nesbitt
    • H04B3/46
    • G01R19/0053G01R31/1272
    • Apparatus for processing broadband impulses signals of low repetition rate includes a tuner for receiving broadband impulsive signals of low repetition rate and providing an output signal characteristic of the amplitude and spectral content of the received input signal. Resolution bandwidth filters coupled to the tuner output each have a different bandwidth that determines the measurement resolution and influences the sensitivity and transient response to low repetition rate impulsive signals. At least one radio frequency switch selects a resolution bandwidth filter for coupling to and associated one of at least a peak detector, an average detector and an envelope generator. A gate generator coupled to the peak detector, the average detector and the envelope generator furnishes a gating signal to each to provide a peak signal, an average signal and an envelope signal respectively during a selected gating interval. A microprocessor is coupled to the peak detector and the average detector.
    • 用于处理低重复频率的宽带脉冲信号的装置包括用于接收低重复率的宽带脉冲信号的调谐器,并提供所接收的输入信号的幅度和频谱内容特性的输出信号。 耦合到调谐器输出的分辨率带宽滤波器各自具有不同的带宽,其确定测量分辨率并且影响对低重复率脉冲信号的灵敏度和瞬态响应。 至少一个射频开关选择用于耦合到至少峰值检测器,平均检测器和包络发生器中的一个的分辨率带宽滤波器。 耦合到峰值检测器的栅极发生器,平均检测器和包络发生器提供门控信号,以分别在选定的门控间隔期间提供峰值信号,平均信号和包络信号。 微处理器耦合到峰值检测器和平均检测器。
    • 3. 发明申请
    • High Voltage Insulation Monitoring Sensor
    • 高压绝缘监测传感器
    • US20080309351A1
    • 2008-12-18
    • US12065721
    • 2006-05-09
    • Brian G. StewartAlan NesbittScott G. McMeekin
    • Brian G. StewartAlan NesbittScott G. McMeekin
    • G01R31/12
    • G01R31/1272
    • A sensor for condition monitoring the high voltage insulation of an electrical, generation, transmission or distribution system and/or an item of plant is described. The sensor comprises an impedance measurement unit that connects directly, via a single point of connection, to the electrical system to be tested. The electrical components of the impedance measurement unit are arranged so that high frequency partial discharge signals and low frequency power cycle information signal are preferentially transmitted through separate branches. Analysis of these separated signals thus enables extraction of information about the insulation of the electrical system being monitored. Safe operation of the sensor for users is also achieved through an opto-electronic circuit being employed to control the impedance measuring unit.
    • 描述了用于状态监测电气,发电,变速器或分配系统和/或工厂项目的高压绝缘的传感器。 该传感器包括阻抗测量单元,其通过单个连接点直接连接到要测试的电气系统。 阻抗测量单元的电气部件被布置成使得高频部分放电信号和低频功率周期信息信号优先通过分开的分支传输。 因此,分离这些分离的信号可以提取关于被监测的电气系统的绝缘的信息。 用于用户的传感器的安全操作也通过用于控制阻抗测量单元的光电子电路来实现。
    • 4. 发明授权
    • High voltage insulation monitoring sensor
    • 高压绝缘监测传感器
    • US08466690B2
    • 2013-06-18
    • US12065721
    • 2006-05-09
    • Brian G. StewartAlan NesbittScott G. McMeekin
    • Brian G. StewartAlan NesbittScott G. McMeekin
    • H01H31/12
    • G01R31/1272
    • A sensor for condition monitoring the high voltage insulation of an electrical, generation, transmission or distribution system and/or an item of plant is described. The sensor comprises an impedance measurement unit that connects directly, via a single point of connection, to the electrical system to be tested. The electrical components of the impedance measurement unit are arranged so that high frequency partial discharge signals and low frequency power cycle information signal are preferentially transmitted through separate branches. Analysis of these separated signals thus enables extraction of information about the insulation of the electrical system being monitored. Safe operation of the sensor for users is also achieved through an opto-electronic circuit being employed to control the impedance measuring unit.
    • 描述了用于状态监测电气,发电,变速器或分配系统和/或工厂项目的高压绝缘的传感器。 该传感器包括阻抗测量单元,其通过单个连接点直接连接到要测试的电气系统。 阻抗测量单元的电气部件被布置成使得高频部分放电信号和低频功率周期信息信号优先通过分开的分支传输。 因此,分离这些分离的信号可以提取关于被监测的电气系统的绝缘的信息。 用于用户的传感器的安全操作也通过用于控制阻抗测量单元的光电子电路来实现。