CN EN
Visual intelligent safety monitoring system for substations
Electromagnetic Oscillation & Event Inference Based Transformer Safety Pre-control
Intelligent safety pre-control of large transformers based on electromagnetic oscillation monitoring and event reasoning: Based on the mechanism of electrical and mechanical fault events of transformers, with the help of the "electromagnetic oscillation" matrix for judgment, it ensures the safe operation of large transformers: Applying the principle of electromagnetic oscillation to fault diagnosis; Introduce intelligent monitoring technology for microcurrents in transformer core grounding to promptly detect abnormal micro-discharges. Deeply develop the online intelligent diagnosis function of transformer chromatography; Develop an expert knowledge base for various internal and external faults of transformers, and establish multi-source coupling analysis and diagnosis models for electromagnetic oscillation, chromatography online and microcurrent.

Key technologies

Scope: Within the high and low voltage bushings of the transformer; MonitoringUHFPartial discharge, core current, electromagnetic oscillation, oil chromatography analysis; AnalysisaFirst of allUHFThe unit sensitively captures discharge faults inside and outside the transformer, detects any abnormal "discharge" within the controlled range, and issues a warning.bThe microcurrent sensor with the iron core grounded captures the induced "extra" current and issues an alarm.cThe electromagnetic oscillation sensor matrix is arranged to synchronously collect and directionally analyze the additional "electromagnetic oscillation" signal data. Through matrix scanning, the "discharge fault" location is locked, and the degree of hazard is continuously analyzed to push the operation strategy.dOil chromatography gas analysis continuously collects information on the deterioration of transformer insulating oil components for qualitative analysis of more significant discharge faults,Confirm the degree of "fault hazard" and submit suggestions on whether to shut down the machine.

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Expected effect

Realize the diagnosis and early warning of latent faults during the operation of transformers, and promptly push operation and maintenance suggestions to prevent major damage accidents to transformers. Timely identify internal and external faults of the transformer, such as winding deformation, core faults, as well as internal and bushing discharge faults of the transformer for monitoring and early warning. Monitor and warn of faults such as moisture or damage to the insulation inside the transformer, multi-point grounding of the core, foreign objects in the box, and sludge deposition in the oil tank.

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