Time-Frequency Characteristic Analysis of Acoustic Signal for Insulator Contaminant Discharge
Author:Emily   time:7/18/2016 5:51:24 AM  read:537times

The acoustic signal, occurs when insulator contaminant discharge, contains a large number of information which can reflect the contaminated degree of insulator.

Based on FFT conversion, the acoustic signal of insulator is decomposed into two parts: time domain and frequency domain. The acoustic signal time-frequency characteristics under different pollution degree are studied, it is found that the average value of the time domain and the frequency spectrum characteristics contain four characteristic values, which reflect the development characteristics of insulator contaminant discharge.
The analyzed results show that, the typical value, maximum and standard deviation, and the real part of amplitude, four characteristics values of insulator have a good correlation with contamination degree. Experimental result shows that these four characteristics values can be used to prediction contamination degree of insulators effectively, and provide new characteristics for the contamination pre-warning.



  • Pre:Introduction of Composite line post insulators

  • Next:Fiber Glass Core Rod
  • print | close

     

      PRODUCT INDEX

         High voltage power product

              Ceramic over line insulator
              Ceramic station post insulator
              Porcelain bushing insulator
              Silicone rubber insulator
              Polymeric pin insulators
              preformed fittings
              Electrical metal fitting
              Promoted power products

    ........................................................

      COMPANY NEWS

      As a Chinese power supplier, we increase technical assistance and whole package purchase agent service to foreign company.
                                   >>more of orient

      We develope grey glaze pin type and line post insulators and power fittings used in American and brown insulator in African market.
                                   >>more of orient

      As a high voltage insulator supplier and service support, since the last year contribution to exports, the municipal government awarded us the Outstanding Contribution Award, encouraged us to make greater contribution.
                                   >>more of orient

     

     

    ©2005-2015 ceramic insulator composite insulator