SF6气体微水密度在线监测系统

 该系统本公司根据国家智能电网发展要求而设立的重点项目,该系列产品采用最新遥测遥感技术和后台计算机技术于一体,外观小巧,可实现高精度测量、计算机后台处理、海量的历史数据存储等功能,适用于各种电压等级的SF6断路器、GIS、AIS等设备SF6气体的微水、密度和温度的在线测量,实现无排放、环保、安全、实时、远程等先进的动态监控,以满足电力配网自动化和设备状态检修的需要,为电网的智能化建设预留接口。

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Product Details

SF6气体微水密度在线监测系统


 

系统简介

 

 

    随着我国电力行业的快速发展,SF6技术的广泛应用以及智能电网建设的迫切性,急需解决SF6电气设备的在线综合监控技术。
 

    SF6气体由于其固有的特性,目前是较为理想的绝缘及灭弧介质。但其微水含量、气体密度等等都会对设备的运行、人员的安全、电网的可靠带来直接的影响。因此对SF6电气设备的微水含量、气体密度的监测一直是相关行业对设备监测的一个重要的组成部分。有关部门相继制定了相关标准对SF6气体质量、特别是微水含量进行严格控制。电力部推荐标准《电力设备预防性试验规程(DL/T596-1996)》、国家标准《六氟化硫电气设备中气体管理和检验导则(GB/T 8905-1996)》以及IEEE标准《IEEE Guide for Moisture Measurement and Control in SF6 Gas-Insulated Equipment(IEEE Std 1125-1993)》对水分的控制均采取水分对SF6气体体积比(ppm)的形式。
 

    SF6气体微水密度在线监测系统改变了传统的费时费力、并且污染环境的离线测量方式,实时准确的测量SF6气体多项指标,为电网的智能建设打下了坚实的基础。

 

 

系统特点

 

 

     该系统本公司根据国家智能电网发展要求而设立的重点项目,该系列产品采用最新遥测遥感技术和后台计算机技术于一体,外观小巧,可实现高精度测量、计算机后台处理、海量的历史数据存储等功能,适用于各种电压等级的SF6断路器、GIS、AIS等设备SF6气体的微水、密度和温度的在线测量,实现无排放、环保、安全、实时、远程等先进的动态监控,以满足电力配网自动化和设备状态检修的需要,为电网的智能化建设预留接口。



 

产品功能


 

   ◆ 无排放,环保,经济,安全,可靠

   ◆ 在线监测SF6断路器或组合电器中微水、密度、温度等参数

   ◆ 实现微水的压力与温度补偿、密度的温度补偿,使微水与密度数据真实可靠

   ◆ 采用具有多种自校准功能的传感器

   ◆ 采集单元能在不影响主设备状态下投运、退出,不影响主设备的正常运行

   ◆ 采集单元内部运用内循环技术,大幅提高采样精度

   ◆ 现场大屏幕LCD显示,绘制趋势图,实时上传

   ◆ 内置密度继电器无源输出,可设闭锁/报警/超压的动点值

   ◆ 全封闭设计,防水防尘,抗高频干扰,适用于室内外

   ◆ 多种阀门接头,安装拆卸方便,节省维护费用


 

系统架构



    系统由过程层、间隔层和站控层组成,过程层包括密度变送器(测温密度、温度功能)、微水密度变送器(测量微水、密度、温度功能),间隔层为微水密度在线监测装置(系统主机),站控制层为后台监测软件。系统主机和变送器之间通过电缆连接。变送器内部的采样池也采用了内循环技术,可实时测量设备内SF6的微水、密度和温度等相关参数,实现实时显示及与系统主机的通讯和数据交换。系统主机在分时提取了各个变送器的数据后,将数据上传至后台计算机处理,同时可接受后台的指令,实现实时采样等动作。

 

微水密度在线监测系统.jpg


 

技术参数


 

   湿度指标:

测量范围:20~1000ppm

测量精度:± 3% F.S.

报警门限:50~500ppm(可调)
 

   密度指标:

测量范围:0.01~1.00 MPa

测量精度:±0.5% F.S.

报警门限:0.45 MPa (可调)

闭锁门限:0.40 MPa (可调)
 

   温度指标:

测温范围:-50 ℃~+99 ℃

温度测量精度:± 1℃
 

  其它指标:

报警触点容量:AC 220V/7A,常开、常闭

通讯接口:隔离型RS-485

电源电压:24VDC 或 85V~265V AC

工作环境:温度:-30 ℃~+65 ℃    湿度:≤95%RH

绝缘性能:外壳与电源间:>10MΩ

抗电强度:外壳与电源间:>2000V

电磁兼容特性:快速瞬变脉冲群 GB/T17626.4-1999 3级

雷击(浪涌): GB/T17626.5-1999 

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