Smart Power Plant - Online Monitoring System for High Voltage Electrical Equipment Status

1、 Overview: The OnSage high-voltage electrical equipment status online monitoring system for smart power plants is a digital, intelligent, and networked hierarchical distributed monitoring system. The system is divided into several subsystems based on the different monitoring objects: online monitoring device system for dissolved gases in transformer oil, online monitoring device system for grounding current of transformer core/clamp, online monitoring device system for zinc oxide lightning arrester, online monitoring device system for insulation status of capacitive equipment, online monitoring device system for transformer fiber optic grating temperature measurement, online monitoring device system for high-voltage switchgear fiber optic grating temperature measurement, online monitoring device system for high-voltage cables, online monitoring device system for partial discharge, online monitoring and warning system for DC power supply, etc. The data monitored by each monitoring subsystem has high accuracy and strong repeatability, which can reliably reflect the real-time status of equipment operation. The OnSage high-voltage electrical equipment status online monitoring system can provide technical support for the status evaluation, risk analysis, fault diagnosis, and maintenance strategies of high-voltage electrical equipment in the power generation industry, and is one of the solid core foundations for the construction of smart power plants. 2、 The OnSage high-voltage electrical equipment status online monitoring system is a digital, intelligent, and networked hierarchical distributed monitoring system. The system adopts a three-tier deployment, namely deploying digital monitoring units at the process layer, deploying intelligent IEDs at the interval layer, and deploying analysis, diagnosis, and decision-making expert systems at the station control layer. The first layer is the data acquisition layer, which consists of a data acquisition subsystem configured on the monitored equipment. It is the foundation of the online monitoring architecture for power plant booster stations, and completes the signal acquisition, processing, and analysis of high-voltage electrical equipment monitoring. It obtains characteristic quantities of the operating status of high-voltage equipment and uploads this characteristic quantity data to the second layer management layer. The second layer is the management layer, consisting of data servers and system software, which completes the collection, storage, and analysis of monitoring data; Based on the set criteria, determine the health status of high-voltage equipment and provide data service services to the user layer, including querying monitoring data, equipment operating status, operating status change trends, warning information, report printing, and users can also classify and manage the monitored data. The third layer is the user layer, consisting of user terminal devices configured in various locations, including PC and personal terminals. Provide users with practical operation management tool interfaces, expert opinions on equipment management, data analysis, operation and maintenance guidance and decision-making, etc. The system will set different levels, each with different access permissions to the data server, and the content that can be accessed and queried will also be different. The OnSage high-voltage electrical equipment status online monitoring system is an open and highly compatible system. The system has complete interface configuration and rich protocol interfaces, which can meet the access requirements of various online monitoring devices. Real time monitoring of equipment status data, timely detection of equipment hazards, gradually transforming current fault repair, planned maintenance, and regular experiments into status maintenance, reducing the workload of inspection and maintenance, timely discovering potential equipment failures, effectively reducing equipment maintenance costs, avoiding huge economic losses, and ultimately achieving full life cycle management, energy conservation, efficiency improvement, and quality enhancement!  3、 Partial on-site application pictures 

On site images of oil chromatography monitoring

On site pictures of online monitoring of high-voltage equipment

On site images of online monitoring of iron cores/clamps

On site images of partial discharge monitoring

On site pictures of lightning arrester online monitoring

On site images of capacitive equipment online monitoring

On site pictures of fiber optic temperature monitoring

On site pictures of DC warning monitoring system