A major breakthrough was made in the vibration analysis method to detect faults in transformer windings. The results of the actual measured waveform data analysis are consistent with the simulated fault types, indicating that this analysis method has taken an important step from theoretical research to practical application.
As the most important power equipment in power grid operation, the health level of transformers is crucial to the safe operation of the entire power grid. Huang Hai, a professor at Zhejiang University, said that the vibration analysis method detects transformers online and performs quantitative analysis to diagnose the health status of various types of transformer windings, and realizes transformer life-cycle management.
At present, the conditional overhaul of large-scale power transformers is generally once every six years. What is the health level of transformers in six years? Can inspection intervals be extended or shortened? This is very realistic for reducing blackout time and achieving effective maintenance.
The overcurrent due to each grid fault has impacted and damaged the transformer windings. The traditional way of processing is to disable the transformer and perform a series of test analysis on the transformer to determine the size of the transformer's internal faults and hidden dangers. This method increases power outage time and affects the reliability of power supply.
"Vibration analysis method" is to install a detector in the transformer shell, collect winding vibration waveforms, through careful analysis and calculation to determine its health status. Realize continuous and dynamic observation, so as to discover hidden faults such as deformation and loosening of transformer windings as soon as possible, obtain the trend and speed of development of hidden troubles, and provide quantitative analysis data for on-demand maintenance of transformers.
The greatest advantage of using the vibration analysis method is that it does not affect the normal operation of the transformer, and maximizes the normal operating time of the transformer, so that it can be repaired at the most appropriate timing.
As the most important power equipment in power grid operation, the health level of transformers is crucial to the safe operation of the entire power grid. Huang Hai, a professor at Zhejiang University, said that the vibration analysis method detects transformers online and performs quantitative analysis to diagnose the health status of various types of transformer windings, and realizes transformer life-cycle management.
At present, the conditional overhaul of large-scale power transformers is generally once every six years. What is the health level of transformers in six years? Can inspection intervals be extended or shortened? This is very realistic for reducing blackout time and achieving effective maintenance.
The overcurrent due to each grid fault has impacted and damaged the transformer windings. The traditional way of processing is to disable the transformer and perform a series of test analysis on the transformer to determine the size of the transformer's internal faults and hidden dangers. This method increases power outage time and affects the reliability of power supply.
"Vibration analysis method" is to install a detector in the transformer shell, collect winding vibration waveforms, through careful analysis and calculation to determine its health status. Realize continuous and dynamic observation, so as to discover hidden faults such as deformation and loosening of transformer windings as soon as possible, obtain the trend and speed of development of hidden troubles, and provide quantitative analysis data for on-demand maintenance of transformers.
The greatest advantage of using the vibration analysis method is that it does not affect the normal operation of the transformer, and maximizes the normal operating time of the transformer, so that it can be repaired at the most appropriate timing.
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