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Infrared videos from transmission line inspection of UAV have a large amount of data with low SNR (Signal to Noise Ratio). Identifying heat defects automatically using infrared videos is difficult and inefficient. In this paper, an advanced method is proposed. Firstly, points with excessive value of the component regions according to conductors are analyzed in their neighbors to obtain defect points...
The Paper propose a processing method for LiDAR data in power line inspection tour. The classification of the point cloud with the data feature in the patrol is the first step. On this basis, using the geometric information of different types of point cloud in feature extraction and statistical analysis to obtain the cross-cutting and security risks information which is required by the power line...
In sandstorm condition, sand particles with different size collide with each other, resulting in electrification of sand particles and a strong electric field will form. When the charged sand particles move to the neighborhood of line insulators, they will impact the external insulation performance of line insulators. In this paper, electric field distribution of composite insulators with the existence...
In this paper, by using finite element analysis (FEA) and boundary element analysis (BEA), the potential distribution of 500 kV gapless MOA on power lines is calculated. Considering towers, power lines, grading rings and etc, the position and size of grading rings are adjusted to optimize the structure. The results of FEA and BEA numerical calculation indicate that the resistor of MOA at the line...
Converting transformer bushing is the key equipment to develop the ultra-high voltage power transmission project. The electric field distribution in the bushing is correlative to resistivity, temperature and etc. Especially, the electric field distribution relatively centralizes on the bushing outlet terminal for its complex structure. In this paper, finite element analysis (FEA) is used to calculate...
In this paper, the finite element method is used to calculate the three-dimensional electric-field distribution of long-rod post porcelain insulators used in 1000 kV system. The electric-field distribution is simulated in the condition of varied position, varied major radius and varied section dimension of the shielding ring. The effect of these factors to the external insulation characteristics of...
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