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MJR100W

  • Category:MJR100W type remote micro water density relay
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  • Release time:2023-03-13 20:29:45
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It is used to control and monitor the density (P20 pressure) of SF6 gas in sealed containers, and is equipped with alarm and locking contacts. It is applied to SF6 high-voltage circuit breakers, medium voltage switches, gas insulated equipment (GIS), high-voltage cables, transformers, and transformers. It can output PPM20 micro water content, P20 pressure, temperature, dew point, atmospheric dew point, pressure, and density in SF6 electrical equipment, and is equipped with communication interfaces through RS485 communication, The SF6 gas PPM20 micro water content, P20 pressure, temperature, dew point, atmospheric dew point, pressure, and density data are transmitted to the background of the monitoring room, through which the readings of the SF6 density relay can be observed from time to time.

SF6 高压断路器

中压开关

气体绝缘设备(GIS)

高压电缆

变压器和互感器


1、 自我校验

传感器数据采集,采用 2 套采集系统,可自我校验,输出报警;

2、实现远传功能

外形在与传统的 SF6 气体密度继电器一致的情况下,功能方面具备除了传统 SF6 气体密度继电器具

备的报警闭锁输出以外,还具备把 PPM20 微水含量, P20 压力,温度,露点,常压露点,压力密度的数据传输到后台的功能;


输出

通讯方式: RS485

通讯协议: ModBus

传输速度: 9600bps


一般参数

工作电压: 24VDC

率: <3W

量 : 1000g

防护等级: IP65 外壳材质:

不锈钢接头材质:不锈钢

机械接口:M20*1.5

绝对漏气率: ≤10-9Pa·m3/s(氦气检测)

测量参数

露点范围: -50…+20℃ Td/f

压力范围: 0…+10bar

温度范围: -40…+80℃(可扩展量程)

计算参数

转化为 20 °C 标准条件下的参数

微水值: 1…9999ppm

压力值(密度): 0 ...10 bar

SF6 混合密度: 0 ...100 kg/m3

输出参数有: PPM20( 20℃下微水)、P20( 20℃下压力,密度)、T(℃)、Td(露点)、P(压力)、Tdatm(常压露点)、密度(㎏/m³)


性能

露点精度:±3℃ Td

压力值(密度)精度:±1% FS

温度精度:±1℃

传感器响应时间: 露点传感器: 2S(20℃)

压力传感器: <0.5S(20℃)


工作环境

变送器工作温度: -40...+80℃

过载安全压力: 12 bar

相对湿度: 0…100RH%

被测气体: SF6,SF6/N2 混合气


抗电磁干扰

浪涌                  4 级(GB/T 17626.5-2008)

静电放电           4 级(GB/T 14598.14-2010)

快速瞬变干扰    4 级(GB/T 14598.10-2007)

阻尼振荡磁场    5 级(GB/T 17626.10-1998)

射频传导干扰    3 级(GB/T 17626.6-2008)

脉冲群干扰        3 级(GB/T 17626-12-1998)


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