Il sistema di monitoraggio online della cromatografia dell'olio del trasformatore HZGC-1210 può realizzare la pulizia automatica del ciclo quantitativo, l'assunzione di olio, la separazione di olio e gas, l'analisi del campione, l'elaborazione dei dati,{2}}allarmi in tempo reale; monitoraggio online rapido delle apparecchiature ad alta tensione{3}}a bagno d'olio come trasformatori per i gas di guasto disciolti nel contenuto di olio e del relativo tasso di crescita e previsione anticipata dei guasti alle apparecchiature informazioni nascoste sui pericoli attraverso il sistema esperto di diagnosi dei guasti, evitare incidenti alle apparecchiature, ridurre le perdite maggiori e migliorare l'affidabilità del funzionamento delle apparecchiature. Come prodotto di nuova generazione nel campo del monitoraggio online della cromatografia dell'olio, questo sistema fornirà una soluzione stabile e affidabile per l'analisi DGA remota online dei trasformatori di potenza ed è una potente garanzia per l'implementazione del sistema di manutenzione delle condizioni del sistema di alimentazione.
The HZGC-1210 system is built by combining the company's nearly 20 years of successful experience in the operation of automatic full degassing equipment for power chromatography, and summarizing the advantages and disadvantages of online monitoring of oil chromatography at home and abroad. The system maintains the advantages of stability, reliability and accuracy that our company's products have always had:
♦ Online detection of concentration and growth rate of H2, CO, CO2, CH4, C2H4, C2H2, C2H6, H20 (optional);
♦ Quantitative cleaning cycle sampling method, which truly reflects the state of dissolved gas in transformer oil;
♦ Oil and gas separation is safe and reliable, no pollution, and users can choose whether to discharge or not discharge transformer oil;
♦ Adopt special composite chromatographic column to improve the separation degree of gas components;
♦ Adopt imported special detector to improve the detection sensitivity of hydrocarbon gas;
♦ High stability and high precision gas detection technology, the error range is ± 10 percent ;
♦ Mature and reliable communication method, using standard network protocol, supporting remote data transmission;
♦ High reliability of data acquisition, using oversampling technology Δ-Σ analog-to-digital converter, 24-bit resolution, automatic calibration;
♦ Various data display and query methods, reports and trend graphs are provided, and the storage life of historical data is 10 years;
♦ Strong environmental adaptability, successfully applied in high cold, high temperature, high humidity and high altitude areas;
♦ High anti-interference performance, electromagnetic compatibility can meet GB/T17626 and IEC61000 standards;
♦ Provide two-level alarm function, and the alarm signal can be transmitted remotely;
♦ An open database, which can be connected to the local area network of the power system;
Inoltre, il sistema HZGC-1210 adotta un design modulare e l'applicazione di processori integrati ad alte prestazioni rende il sistema di monitoraggio cromatografico online
Il sistema è più stabile e affidabile e presenta le seguenti caratteristiche:
♦ Faster analysis period, the minimum monitoring period is 40-60 minutes, which can be set by the user, and the recommended detection period is 24 hours;
♦ The separation speed of oil and gas is fast, which only takes about 10 minutes. Special environmental adaptation technology is adopted to eliminate the influence of temperature and humidity changes on the gas distribution coefficient;
♦The analyzed oil sample adopts degassing and buffering treatment technology to eliminate the air bubbles in the oil sample re-injected into the transformer body. The multi-layer isolated oil re-injection (return oil) technology absolutely guarantees that the carrier gas will not be brought into the transformer body. ;
♦ The lowest detection limit of C2H2 can reach 0.1-0.5 μL/L;
♦ Adopt dual{{0}}loop multi-mode constant temperature control, the temperature control accuracy is ± 0.1 degree , the equipment is equipped with automatic constant temperature industrial air conditioner;
♦ The embedded processor control system integrates oil and gas separation, data acquisition, chromatographic analysis, concentration calculation, data alarm, equipment status monitoring and other functions into one, without data loss, which greatly improves the reliability of the system and stability;
♦ The functional interface circuit adopts optocoupler isolation design to further improve the anti-interference performance of the system;
♦ Using Ethernet mode, it can realize all-digital, remote data transmission, control and parameter setting;
♦ Strengthen the system fault diagnosis function, provide the improved three-ratio method, David's triangle method and cube diagram method, and give the diagnosis results;
♦ Strengthen system self-inspection, increase remote maintenance function, and provide equipment abnormal event alarm;
♦ Support 61850 communication protocol, provide networking functions of similar monitoring equipment, and realize centralized remote diagnosis in a certain area;
♦ The system structure adopts 19" standard chassis and highly integrated modular design, with compact structure, easy installation and maintenance, and user-friendly operation;
♦ High scalability, can be easily integrated with other monitoring devices;
♦ No steel cylinder design, no need to replace the carrier gas every year, which greatly reduces the after-sales maintenance, and there is no high-voltage container next to the transformer, the safety of the equipment is fully guaranteed, and there is no potential safety hazard.