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iMGA2020色譜微水在線監測系統

iMGA2020 On - line monitoring system for chromatographic micro - water

The new generation of micro-water on-line monitoring system (IED) is one of the basic monitoring unit of intelligent transformers, and has a remote automatic calibration function. This series of transformer chromatographic micro-water on-line monitoring system for the power transformer oil dissolved gas on-line analysis and fault diagnosis for 35kV and above voltage levels of power transformers, electric arc furnace transformers, reactors and transformers and other oil-immersed high-pressure equipment The The system uses the principle of gas chromatography to monitor the dissolved characteristic gas in the transformer oil. The HC series capacitive sensor micro-water detection unit is used to monitor the micro-water content of the transformer oil continuously. It can provide high-precision quantitative analysis, Large oil-filled equipment running state; able to analyze long-term accumulation of monitoring data to determine the status of the monitoring equipment to predict the initial failure of equipment.

Technical features Detection Indicator Monitor component description
◆ monitoring principle: the principle of chromatography analysis;
◆ oil and gas separation technology: the use of variable capacity negative pressure headspace degassing method, high separation efficiency, speed;
The detector was designed to detect H2, CO, CH4, CO2, C2H4, C2H2, C2H6, total hydrocarbon, fast response, high precision and full scale linearity. The detection of H2O by micro-water detection unit was carried out.
◆ calibration methods: to support the standard gas automatic calibration, remote calibration and standard oil sample calibration;
◆ online activation: to support automatic column activation, to extend the battery life;
◆ Intelligent monitoring: to support the sampling cycle automatically adjust the function of data anomalies are immediately secondary sampling verification, confirmed automatically after the sampling cycle, timely tracking transformer operating conditions;
◆ signal processing: intelligent spectrum recognition technology to ensure that acetylene and other trace gas components of the reliable identification;
◆ Baseline processing: wavelet baseline automatic tracking technology to ensure quantitative accuracy;
◆ environmental adaptability: double constant temperature control technology to meet the use of outdoor environmental conditions to ensure data stability;
◆ Output mode: support digital interface output and the concentration of each component 4 ~ 20mA analog output;
◆ communication: chromatography data collector and station control layer server using fiber Ethernet, RS485 connection;
◆ communication protocol: the use of DL / T860 (IEC61850) standard protocol;
◆ time synchronization: the use of SNTP network and fiber B code on the time;
◆ remote maintenance: support WEB, UDP and other remote maintenance interface;
◆ hardware design: the use of industrial-grade embedded processor;
◆ component size: such as the use of intelligent component type, standard 19-inch cabinet, component size is 16U.
 

ID

Monitor the gas

Detection range

Minimum detection limit

Measure repeatability

1

H2

0~2000μL/L

2μL/L

10%

2

CO

0~10000μL/L

25μL/L

10%

3

CH4

0~1000μL/L

0.5μL/L

10%

4

C2H4

0~1000μL/L

0.5μL/L

10%

5

C2H6

0~1000μL/L

0.5μL/L

10%

6

C2H2

0~1000μL/L

0.5μL/L

10%

7

TH

0~8000μL/L

1μL/L

10%

8

TCG

0~8000μL/L

1μL/L

10%

9

H2O(可選)

2%~100%RH

2%RH

10%

10

CO2(可選)

0~15000μL/L

25μL/L

10%

Note: The measurement error takes the maximum value of the minimum detection limit or ± 30%

MGA2000 System testing indicators Monitor the components
H2、CO、CH4、C2H4、C2H2、C2H6、Total hydrocarbon, total gas Six components
H2、CO、CH4、C2H4、C2H2、C2H6、Total hydrocarbon, total gas、H2O Six components+Slightly water
H2、CO、CO2、CH4、C2H4、C2H2、C2H6、Total hydrocarbon Seven components
H2、CO、CO2、CH4、C2H4、C2H2、C2H6、Total hydrocarbon、Total combustible gas、H2O Seven components+Slightly water
H2、CO、CO2、CH4、C2H4、C2H2、C2H6、O2、Total hydrocarbon Eight components
H2、CO、CO2、CH4、C2H4、C2H2、C2H6、O2、Total hydrocarbon、Total combustible gas、H2O Eight components + micro water

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