Online measurement of equivalent salt deposit density by using optical technology

In this paper, the optical technology is used to monitor ESDD near insulators on transmission line. This technique is based on the light energy loss and the distribution of optical field in the dielectric waveguide. Under the same measure environment, there has the certain correlation between the ESDDs of the polluted insulators and the ones of the quartz glass rod. Based on the experimental results, artificial neural networks (ANN) has been developed to model the relationships between ESDD by the optical technology and the measured ones. The contrasts reveal that the ANN-calculated ESDDs have the same corresponding with the measured ones for a practical system.

I. Introduction

Due to the acceleration of the urbanization and the expansion of the industrial scale in China, the transmission lines with the high density or power load areas are located in these urbanization and industrial regions, and the flashover of the suspension insulator has become a main negative effect on the power system [1]–[3].