Modular current sensor and power source
    4.
    发明授权
    Modular current sensor and power source 失效
    模块化电流传感器和电源

    公开(公告)号:US06433981B1

    公开(公告)日:2002-08-13

    申请号:US09475617

    申请日:1999-12-30

    IPC分类号: H02H300

    CPC分类号: G01R19/0092 H02M2001/0009

    摘要: A modular current sensor and power source unit (10) for duplicating the function of a current transformer is disposed on a conductor (11) of an electrical circuit. Modular current sensor and power source unit (10) includes a current transformer (12), a power supply circuit (14), a current sensor (16), and current source circuit (18). Current transformer (12) provides operating power to power supply circuit (14). Power supply circuit (14) regulates the operating power and provides the regulated operating power to sensor (16) and current source (18). Sensor (16) senses current in phase (11) and provides a signal indicative of the current in phase (11) to current source (18). Current source (18) receives the signal from sensor (16) and drives an output current proportional to this signal to the load circuit via lines (34) and (36). The current output by current source (18) has the attributes of the low power sensor (16) with the ability to provide power to the load circuit.

    摘要翻译: 用于复制电流互感器的功能的模块化电流传感器和电源单元(10)设置在电路的导体(11)上。 模块化电流传感器和电源单元(10)包括电流互感器(12),电源电路(14),电流传感器(16)和电流源电路(18)。 电流互感器(12)向电源电路(14)提供工作电源。 电源电路(14)调节工作功率并向传感器(16)和电流源(18)提供调节的工作功率。 传感器(16)感测同相(11)中的电流,并向电流源(18)提供指示同相(11)中的电流的信号。 电流源(18)从传感器(16)接收信号,并通过线路(34)和(36)将与该信号成比例的输出电流驱动到负载电路。 电流源(18)的电流输出具有能够向负载电路供电的低功率传感器(16)的属性。

    Power line monitoring and interrupt method and apparatus
    5.
    发明授权
    Power line monitoring and interrupt method and apparatus 有权
    电力线监测和中断方法及装置

    公开(公告)号:US06968277B2

    公开(公告)日:2005-11-22

    申请号:US10052236

    申请日:2002-01-16

    CPC分类号: H02H1/0046 H02H3/42

    摘要: In order to detect high-speed transients in the alternating current of a power distribution system, the rate at which the power on the distribution system is sampled is increased so that even high-speed transients are detected. The sampling rate can be increased in at least two ways. First, where a single analog-to-digital converter samples multiple lines through a multiplexer, the multiplexer is controlled to allow the converter to sample only one line at a much-increased rate. Alternatively, the sampling speed of the analog-to-digital converter (or A/D array) can be controlled and increased as needed.

    摘要翻译: 为了检测配电系统的交流电中的高速瞬变,分配系统上的电力被采样的速率增加,从而甚至检测到高速瞬变。 采样率可以至少两种方式增加。 首先,单个模数转换器通过多路复用器对多条线路进行采样时,多路复用器被控制以允许转换器以非常大的速率对一条线进行采样。 或者,可以根据需要控制和增加模数转换器(或A / D阵列)的采样速度。