SWSP transformer oil chromatography on-line monitoring system can be composed of on-site on-line monitoring device and background monitoring management software. The on-site monitoring host includes four highly integrated modules and auxiliary units, such as chromatography data acquisition and processing module, oil and gas separation module, gas detection module and gas source module. The chromatographic data acquisition and processing module includes data acquisition unit, field control and processing unit, communication control unit and 61850 protocol communication, etc. The oil and gas separation module includes oil sample circulation acquisition unit, oil sample quantitative unit, oil sample processing return unit, degassing gas collection unit, etc. The gas detection module includes gas separation unit, constant temperature and constant current control unit, gas detection unit, etc; the gas source module includes gas generation unit, gas storage unit, purification unit, pressure control and alarm unit, etc. The auxiliary unit includes transformer interface, oil pipe, communication and power cable, etc.

If you do not directly upload data and alarm equivalent through the 61850 communication protocol, you can also install computers and monitoring software in the main control room to directly monitor the operating conditions of the equipment in the main control room.

Product Features

♦Online detection of H2, CO, CO2, CH4, C2H4, C2H2, C2H6, H20 (optional) concentration and growth rate;

♦Quantitative cleaning cycle sampling method, the true reaction of transformer oil dissolved gas state;

♦Oil and gas separation is safe, no pollution, discharge and no discharge of transformer oil can be selected by the user; oil and gas separation speed is fast, about 10 minutes, using special environmental adaptation technology to eliminate the impact of temperature and humidity changes on the gas distribution coefficient;

♦The use of imported special detectors to improve the detection sensitivity of hydrocarbon gases; the detection limit of C2H2 can reach 0.1-0.5 μL/L;

♦High stability, high precision gas detection technology, the error range of ± 10%;

♦Mature and reliable communication mode, using standard network protocol, supporting 61850 communication protocol, supporting remote data transmission;

♦High data acquisition reliability, using over-sampling technology delta-sigma analog-to-digital converter, 24-bit resolution, automatic calibration;

♦Various data display and query methods, providing reports and trend charts, historical data storage life of 10 years;

♦Strong adaptability to the environment, successfully applied to high cold, high temperature, high humidity, high altitude areas;

♦High anti-interference performance, electromagnetic compatibility can meet GB/T17626 and IEC61000 standards;

♦Provide a two-level alarm function, alarm signal can be remote transmission;

♦Open database with access to power system LAN;

In addition, the SWSP system adopts a modular design, and the application of high-performance embedded processors makes the chromatography online monitoring system more stable and reliable, and has the following characteristics:

♦Faster analysis cycle, the minimum monitoring cycle is 40-60 minutes, which can be set by the user, and the recommend detection cycle is 24 hours;

♦The analyzed oil sample adopts degassing and buffering treatment technology to eliminate the bubbles contained in the oil sample reinjected into the transformer body. The multi-layer isolated oil reinjection (oil return) technology ensures that the carrier gas will not be brought into the transformer body;

♦Double-loop multi-mode constant temperature control, temperature control accuracy of ± 0.1 ℃, equipment equipped with automatic constant temperature industrial air conditioning;

♦Strengthen the system fault diagnosis function, provide improved three-ratio method, David's triangle method and cube diagram method, give the diagnosis results;

♦There is no steel cylinder design, no need to replace the carrier gas every year, which greatly reduces the amount of after-sales maintenance, and there is no high-pressure container next to the transformer, the safety of the equipment is fully guaranteed, and there is no safety hazard.