IC697PCM711
IC697PCM711
IC697PCM711
IC697PCM711
我油田油区配电系统绝大部分采用的是35kV直配供电方式，配电变压器(35/0.4kV)和低压配电装置设在计量站，再由计量站经低压电缆辐射配电至抽油机电机等。随着油田的开发，35kV直配线路的负荷不断增大、供电半径不断加大、分支线路不断增多，造成线路的结构愈来愈复杂，因此线路故障频繁。查找出具体故障所在的分支和故障点则非常困难，少则几小时，甚至数十小时，影响供电可靠性，给原油的生产带来了巨大的经济损失。而故障自动定位系统是提高供电可靠性的重要基础。因此将该项技术用于油田的配电网络中，及时发现并排除线路故障，对确保油田生产的正常进行有着极其重要的意义。
2 故障定位系统组成及原理
2.1 系统组成
该系统组成见图1，包括故障检测探头、通讯系统及监控中心。其中通讯系统根据使用场合和通讯方式又分为：短距离无线数字通讯收发系统、远距离无线发射系统、无线接收总站及其它通讯系统。
《联系人；欧先生》
《座机：0592-5709825》
《传真：0592-5917519》
《24小时热线：18030229053同步》
《 ：2479261344》
《邮箱：2479261344@.com》
2.2 工作原理
故障探头安装在线路分支处的分支线上，当线路出现相间短路故障时，故障探头就能及时检测到短路故障电流，通过短距离无线收发系统，将动作信号传送给安装在线路分支处的无线收发子站。无线收发子站可以接收到分别安装在两个分支6相线路上的故障探头发送过来的动作信息。无线接收及发射子站在收到动作信息后，将动作分支的故障探头地址信息通过远距离无线通讯系统(通讯距离一般10km)发回控制中心。无线接收主站接收子站发来的信息后，经过进行解调、解码，可就地显示地址信息，同时将地址信息送给监控中心的计算机系统。监控中心在接收到这些动作信息后，经过计算机分析，与地理信息系统相结合，就可以直接显示出故障点地理位置信息，并在地理背景上显示出来，同时还可以通过打印机将地理位置信息打印出来。
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