The SE3000 transformer oil chromatogram online monitoring system adopts the gas chromatography technology to monitor the contents of H2, CO, CO2, CH4, C2H2, C2H4, C2H6 minim moisture and other gas components in insulating oil of oil-immersed power equipment. The system integrates the functions of automatic analysis, real-time communication, and expert diagnosis, which can ensure real-time online monitoring of primary equipment under complex operating conditions onsite and provide timely feedback of abnormal information.

The TH3011 digital SF6 gas minim moisture and density online monitor is a PC-based industrial production process monitoring system in the field of opto-mechanical integration, and it is mainly used in SF6 gas online monitoring and control of SF6 high-voltage circuit breaker which is one of the main power equipment. The system performs real-time data collection and display, remote data transmission, fault alarm and blocking signal transmission, background data display and analysis for the water content, density and temperature of SF6 gases, and provides information and basis for power system production management and equipment condition maintenance. It has become one of the indispensable key devices in the intelligent grid.

The TH3015 GIS partial discharge online monitoring system adopts ultra-high frequency detection technology, which is applicable to online monitoring, analysis, diagnosis and remote alarm of GIS partial discharge. It provides scientific decision-making basis for GIS condition maintenance, so as to realize digital GIS maintenance. Based on real-time monitoring of partial discharge during the operation of GIS, early warnings of the abnormal state of GIS insulation and discharge faults can be provided in time. The system has the function of continuous real-time automatic monitoring and recording of the basic characteristic parameters of partial discharge, such as partial discharge amplitude (maximum discharge amount, average discharge amount), phase and frequency.

The TH3015 transformer partial discharge online monitoring system employs the signal sensing technology, anti-interference technology and advanced computer analysis method for online monitoring of transformer partial discharge. The system adopts ultrasonic, UHF and high-frequency current electric acoustic partial discharge detection technology to achieve partial discharge monitoring, which can realize analysis of discharge information such as the maximum discharge amount, discharge phase, discharge times, and average discharge amount of the main transformer UHF partial discharge.

The PRS-7921 online monitoring comprehensive processing unit is an intelligent communication management terminal for substation developed by CYG SUNRI. It can be used for receiving the state data of various online monitoring devices in the station, gathering, displaying, processing and storing the data, and forwarding relevant data to the higher-level online monitoring main station.The PRS-7921 online monitoring comprehensive processing unit can complete unified information modeling, unified data collection, unified data storage, unified data processing, and unified data export in the station. In addition to the standard DL/T 860 communication protocol, PRS-7921 also supports the access and upload of various power system protocols, modularization of the communication interface, and flexibly expansion of the protocol method according to the requirements onsite.