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RSS FeedsSensors, Vol. 19, Pages 778: Improved Current Sensor for Water Diffusion Testing of Composite Insulators (Sensors)

 
 

15 february 2019 17:00:03

 
Sensors, Vol. 19, Pages 778: Improved Current Sensor for Water Diffusion Testing of Composite Insulators (Sensors)
 


An improved current sensor aimed at measuring currents of different parts in composite insulator samples was proposed. Conventional current sensors used in water diffusion tests aim to examine the performance of composite insulators, however, it is difficult for the conventional current sensors to locate the defects. Thus, we designed a new electrode structure to measure the currents of different components in short samples of composite insulators. Based on a finite analysis method, the influence of relative permittivity and conductivity on the current was analyzed. New samples with different interfaces and samples after operation were tested using the new and conventional current sensors. The performance of a certain part in short samples can be diagnosed by analyzing the current and phase information extracted from the test results. By comparing the test results of new and traditional current sensors, it was proved that the new electrode structure is more effective in locating the defects of insulators.


 
57 viewsCategory: Chemistry, Physics
 
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