Online transformer winding work state monitoring method
A technology for transformer windings and working states, applied in neural learning methods, instruments, measurement of electricity, etc., can solve the problems of many winding conditions, no identification criteria, complex frequency response waveforms, etc., to reduce the failure damage rate, and the judgment method is efficient. , easy to implement effect
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[0040] Take a 220kV transformer in a substation of a power company as the test object for online monitoring, and judge the working status of the transformer winding according to the following steps:
[0041] (1) Set the vibration sensor on the wall of the transformer to collect the vibration signal of the transformer box wall in real time; at the same time, use the voltage transformer and current transformer to collect the three-phase voltage signal and three-phase current signal of the transformer;
[0042] (2) Perform anti-aliasing digital filtering and high-speed caching of the collected vibration signals, and then transmit them to the data through the high-speed bus together with the three-phase voltage signal and three-phase current signal of the transformer collected by the voltage transformer and the current transformer. Analysis module
[0043] (3) Calculate the corresponding three power factors based on the three-phase voltage and the three-phase current. The calculation met...
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