Direct current partial discharge source detecting and recognizing device
A technology for identifying devices and discharge sources, applied in the direction of testing dielectric strength, etc., to achieve the effect of improving resolution and sensitivity
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[0027] The above is only an overview of the solutions of the present invention. In order to more clearly illustrate the technical means of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] The invention adopts an analog active band-pass filter with a bandwidth of 10kHz-40MHz, a high-speed acquisition card with a sampling rate of 100MS / s and an industrial computer to realize DC partial discharge source detection, discharge source classification and pattern recognition. The device of the present invention can record a single partial discharge pulse current waveform and its occurrence time, extract the pulse current pulse to form a pulse time sequence, and adopt the partial discharge pulse group rapid classification technology based on the pulse characteristics to divide the original pulse group into several sub-pulse groups. Subsequently, the fingerprint information of ea...
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