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.

PRS-761 smart terminalis developed based on the IEC61850 standard for digital substations, which is applicable to transformers and reactors. The device has a fully open digital interface, which can be seamlessly connected with primary intelligent equipment (primary intelligent switch), and is also compatible with conventional primary equipment. The device provides interfaces according to the IEC61850 protocol, which has no restriction on network type. It can achieve flexible networking, and can be applied to various networking methods at the process level.

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 PRS-7393 merging unit is used in intelligent substations. It can be connected to the conventional primary equipment using cables, and collect analog signals from the conventional primary transformers or receive digital signals from other merging units. After synchronization processing, the sampling information is provided to multiple secondary devices such as protection, measurement and control, digital watt-hour meter and digital wave recorder via the Ethernet interface (optical fiber). The data output format of the PRS-7393 merging unit conforms to the IEC61850 standard for intelligent substations.

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 PRS-7395 merging unit and smart terminal isadevice integrating the smart terminal and merging unit of intelligent substation. It provides digital interfaces for traditional circuit breakers, knife switches and transformers, andcan provide the function of local operation box. It can be used asanintelligent accessory of traditional circuit breakers, knife switches and transformers.