Insulator pollution level monitoring method based on leakage current phase difference
A leakage current and pollution level technology, applied in the field of level monitoring, can solve problems such as waveform distortion, achieve the effect of small measurement error, reduce power accidents, and improve safety and reliability
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[0018] Further illustrate below in conjunction with accompanying drawing and embodiment:
[0019] See attached figure 1 , the figure shows an insulator pollution level monitoring method based on leakage current phase difference, which specifically includes the following 10 steps: S1 monitoring device synchronously collects leakage current I x (n) and the relative humidity of the environment R H , S2 bandpass filtering of leakage current, S3 verification of relative humidity, S4 derivation of voltage fundamental component, S5 extraction of phase information of voltage and leakage current at the same time under different relative humidity, S6 calculation of phase difference of voltage and leakage current, S7 relative Humidity verification, S8 to calculate K value, S9 to query the table of K value and pollution level, and S10 to obtain the pollution level of insulator surface.
[0020] Step S1: The leakage current online monitoring device synchronously collects the leakage curr...
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