A Method of Insulator’s NSDD Measurement and Its Device Based on Laser Transmission Principle

Yang Liu^1*, Song Gao¹, Jie Chen¹, Yanlong Lu²

¹State Grid Jiangsu Electric Power Research Institute, Nanjing, China.
²Wuhan Canneng Electric Power Science and Technology Company Limited, Wuhan, China.

DOI: 10.4236/jpee.2014.24070                

Abstract

Accuracy measurement of the Non-soluble Deposit Density (NSDD) on the insulator surface is very important for the transmission line anti-pollution flashover works. A method to measure the NSDD on double sheds porcelain insulator surface based on laser transmission principle is proposed in this paper. Laser unit and luminous intensity sensor are installed between the up and down surface of the double sheds porcelain insulators, two glass tablets are put between the double sheds. The contamination on the glass tablets will influence the luminous intensity that reaches the intensity sensor. The luminous signal is changed to electrical signal, and the insulator’s NSDD could be obtained based on the difference of luminous intensity. The device can be used in online monitoring of the insulator's NSDD condition on the insulator surface.

Keywords

Laser Transmission; NSDD; Luminous Intensity; Real-Time Measurement; Device

Conflicts of Interest

The authors declare no conflicts of interest.

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