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    • 2. 发明申请
    • Surge detector/counter
    • 浪涌检测器/计数器
    • US20060232906A1
    • 2006-10-19
    • US11367651
    • 2006-03-03
    • Yoshiharu Sueoka
    • Yoshiharu Sueoka
    • H02H9/06
    • H02H3/048H02H3/006H02H9/04
    • A combination surge detector/counter device that detects and counts various surge conditions that occur during a specified time interval. The device includes a surge detector circuit which generates a surge voltage signal in response to the occurrence of a surge condition at an input AC power source. The surge detector includes a surge suppressor, such as a metal oxide varistor (MOV), coupled in series with a current sensor such as a toroid transformer. In response to a surge condition, the surge suppressor generates a surge current signal which is converted into a surge voltage signal by the current sensor. To improve the sensitivity of the detector, a portion of a lead of the surge suppressor may be arranged to extend through a central opening of the current sensor. The surge voltage signal is processed by a surge sensitivity selector which provides a plurality of user selectable voltage sensitivity levels. A surge sensitivity circuit further processes the surge voltage signal from the sensitivity circuit to determine a count of the number of occurrences of surges or surge conditions at the input of the detector. A storage means such as a capacitor can be used to store the count-value even after the device is disconnected from the AC power source. A display means can be coupled to the output of the device to display the number of occurrences of surge conditions.
    • 组合浪涌检测器/计数器装置,其检测并计数在指定的时间间隔期间发生的各种浪涌状况。 该装置包括浪涌检测器电路,其响应于输入AC电源处的浪涌状况的发生而产生浪涌电压信号。 浪涌检测器包括与例如环形变压器的电流传感器串联耦合的浪涌抑制器,例如金属氧化物变阻器(MOV)。 响应于浪涌状况,浪涌抑制器产生浪涌电流信号,该浪涌电流信号由电流传感器转换成浪涌电压信号。 为了提高检测器的灵敏度,浪涌抑制器的引线的一部分可以布置成延伸穿过电流传感器的中心开口。 浪涌电压信号由提供多个用户可选择的电压灵敏度级别的浪涌灵敏度选择器处理。 浪涌感测电路进一步处理来自灵敏度电路的浪涌电压信号,以确定在检测器的输入处的浪涌或浪涌条件的发生次数的计数。 即使在从AC电源断开装置之后,也可以使用诸如电容器的存储装置来存储计数值。 显示装置可以耦合到装置的输出以显示浪涌状况的发生次数。