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  • SGE-100DWS Remote Relay of SF6 Gas Density And Micro-water
  • SGE-100DWS Remote Relay of SF6 Gas Density And Micro-water

SGE-100DWS Remote Relay of SF6 Gas Density And Micro-water

Description:

It is used to control and monitor the density of SF6 gas (P20 pressure) in sealed containers, with alarm and locking contacts, applied to SF6 high-voltage circuit breakers, medium-voltage switches, gas insulated equipment (GIS), high-voltage cables, transformers and PT, and can display the PPM20 moisture content in SF6 electrical equipment by LCD rolling.P20 pressure, temperature, dew point, atmospheric pressure dew point, pressure, density, with a communication interface, through the RS485 communication mode, the SF6 gas PPM20 moisture content, P20 pressure, temperature, dew point, atmospheric pressure dew-point, pressure, density data transmission to the monitoring room background, through the background can always observe the SF6 density relay reading. The product also has a pointer to show the density of SF6 gas (P20 pressure).

  • Product Description

 

 3. Main characteristic

(1)Self-check sensor data acquisition

using two sets of acquisition systems, which can self-check and output alarms;

(2)LCD + pointer display

read data by the pointer under the condition of no power, and can compare the pointer with the liquid crystal data;

(3)Realize remote transmission function

Under the condition that the appearance is consistent with that of the traditional SF6 gas density relay, the device has the function of transmitting the data of PPM20 moisture content, P20 pressure, temperature, dew point, normal pressure dew point, pressure and density to the background in addition to the alarm locking output of the traditional SF6 gas density relay; 4 Clear visibility and low pow consumption

The display adopts the OLED liquid crystal screen with low power consumption to solve the problem that the traditional pointer can not read clearly under the condition of dark light;

 

4.Technical parameter

output Communication mode: RS485 Communication protocol:

 Mod-bus Transmission speed: 9600bps

General parameters

Working voltage: 24VDC

Power: < 3W

Weight: 1000g

Degree of protection: IP65

Shell material: stainless steel

Connector material: stainless steel

Mechanical interface: M20 * 1.5

Absolute leakage rate:&le;10-9Pa&middot;m3/s (Helium detection)

 Measuring parameters

Dew point range: -50&hellip;+ 20Td/f

Pressure range: 0&hellip;+ 10bar

Temperature range: -40&hellip;+ 80(extendable range)

 

The calculated parameters

Converted into the parameters under the standard condition of 20&deg;C:

Data of micro water:1&hellip;9999ppm

pressure value (density): 0. 10bar

SF6 mixing density:  0 ...100 kg/m3

Output parameters : PPM20 (moisture at 20), P20 (pressure at 20, density), T (), TD (dew point), P (pressure), Tdatm (normal pressure dew point), density (&sup3;/m&sup3;)

Performance

Dew point accuracy: &plusmn; 3 ℃ Td

Pressure value (density) accuracy: &plusmn; 1% FS

Temperature accuracy: &plusmn; 1 ℃

Sensor response time: Dew point sensor: 2S (20 ℃)

Pressure sensor: < 0.5S (20 ℃)

 

Operating Environment

Transmitter Operating Temperature: -40. + 80

Overload Safety Pressure: 12bar

Relative Humidity: 0&hellip;100RH%

Measured gas: SF6, SF6/N2 mixture

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