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    System for rating electric power transmission lines and equipment
    4.
    发明授权
    System for rating electric power transmission lines and equipment 失效
    电力输电线路和设备评级系统

    公开(公告)号：US5341088A

    公开(公告)日：1994-08-23

    申请号：US912813

    申请日：1992-07-13

    申请人： Murray W. Davis

    发明人： Murray W. Davis

    IPC分类号： G01R15/14 ,  G01R19/15 ,  H02J13/00 ,  G01R21/02

    CPC分类号： H02J13/0086 ,  G01R1/22 ,  G01R15/14 ,  G01R19/15 ,  Y02E60/727 ,  Y04S10/26

    摘要： A system for determining the current carrying capability of one or more overhead power transmission lines monitors one or more spans of each line on real-time basis and identifies the span having the lowest current carrying capacity which in turn establishes the maximum capacity of the entire line. The thermal state of each monitored line span is determined by measuring the conductor temperature, line current, solar radiation, ambient temperature, and in some cases wind speed and wind direction. These parameters are montiored by a sensor-transmitter unit that may be removably clamped on the line conductor which may range in size from one to several inches in diameter, and includes a radio transmitter for transmitting sensed data to a receiving substation. The data from the sensor-transmitter is multiplexed and transmitted by a telecommunications link to a computer which automatically determines line capacity using the real-time data and also calculates the time required for the "critical span" having the lowest current capacity to reach its maximum safe temperature based on any of a number of step changes in load demands. Each sensor-transmitter may include sensors for monitoring the current level, conductor temperature, solar radiation impinging on the conductor, ambient-temperature, wind direction and velocity and conductor sag.

    摘要翻译： 用于确定一个或多个架空电力传输线的当前承载能力的系统实时监测每条线路的一个或多个跨度，并且识别具有最低载流能力的跨度，其又建立整个线路的最大容量 。 每个监测线路跨度的热状态是通过测量导体温度，线路电流，太阳辐射，环境温度，以及在某些情况下测量风速和风向来确定的。 这些参数由传感器 - 发射器单元监视，传感器 - 发射器单元可以可拆卸地夹紧在线路导体上，直径范围可以在1至几英寸之间，并且包括用于将感测数据发送到接收变电站的无线电发射机。 来自传感器 - 发射器的数据通过电信链路复用并发送到计算机，该计算机使用实时数据自动确定线路容量，并且还计算具有最低电流容量达到其最大值的“临界跨度”所需的时间 基于负载需求中的任何阶跃变化中的任何一个的安全温度。 每个传感器 - 发射器可以包括用于监测当前水平，导体温度，撞击在导体上的太阳辐射，环境温度，风向和速度以及导体垂度的传感器。

    Real-time parameter sensor-transmitter
    8.
    发明授权
    Real-time parameter sensor-transmitter 失效
    实时参数传感器 - 变送器

    公开(公告)号：US4268818A

    公开(公告)日：1981-05-19

    申请号：US888143

    申请日：1978-03-20

    申请人： Murray W. Davis ,  Matthew J. Diedzic ,  Robert F. Knapp ,  Bruce F. Whitney

    发明人： Murray W. Davis ,  Matthew J. Diedzic ,  Robert F. Knapp ,  Bruce F. Whitney

    IPC分类号： G01K1/02 ,  G01D5/12 ,  H04B3/54

    CPC分类号： G01K1/024

    摘要： Apparatus for directly monitoring the conductor temperature or other parameters of an energized electric power line conductor, or of the medium adjacent the conductor, on a real time basis, and transmitting a signal indicative of that parameter to a remote location such as to facilitate data processing by computer. The apparatus is powered by the electric or electromagnetic field of the electric power line conductor.Various embodiments are described for sensing the temperature or other parameter being monitored. Furthermore two techniques are described for transmitting the signal to a remote location. The first such technique is the use of air as the transmission medium and the second technique uses the power line conductor itself as the transmission medium.

    摘要翻译： 用于直接监控导电温度或其他参数的通电电力线导体或与导体相邻的介质的实时基准，并将指示该参数的信号发送到远程位置，以便于数据处理 通过电脑。 该装置由电力线导体的电场或电磁场供电。 描述了用于感测被监测的温度或其它参数的各种实施例。 此外，描述了将信号发送到远程位置的两种技术。 第一种这样的技术是使用空气作为传输介质，第二种技术使用电力线导体本身作为传输介质。