Insulator equalizing ring configuration structure of same-tower same-window double-loop compact transmission line
A transmission line and configuration structure technology, applied in the direction of circuits, insulators, cable suspension devices, etc., can solve the problems that the pressure equalizing ring configuration structure has not been seen in public reports, etc., to achieve the suppression of corona and electric erosion, and uniform electric field distribution The effect of rationalization and configuration structure
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Embodiment 1
[0028] In this embodiment, the 750kV transmission line is taken as an example, and the double composite insulator string is used as the composition figure 1 The side string 12 and the middle string 13 of the middle U-shaped structure, the specific structure and the connection relationship of the side string 12 and the middle string 13 are as follows figure 2 , image 3 and Figure 4 Shown:
[0029] see figure 2 or image 3 , the three double-connected composite insulator strings are connected into a U-shaped structure 11 through the multi-split wire fittings 4 and the double-connected plate fittings 5 connected to the two ends of the multi-split wire fittings 4, and the double-connected composite insulator strings are arranged at one end close to the transmission wire 8 There are double-ring structure voltage equalizing rings with large and small voltage equalizing rings. The specific structure of the double-ring structure voltage equalizing rings is: U-shaped structur...
Embodiment 2
[0034] This embodiment takes a 750kV transmission line as an example, with porcelain or glass insulator strings as the composition figure 1 The side string 12 and the middle string 13 of the middle U-shaped structure, the specific structure and the connection relationship of the side string 12 and the middle string 13 are as follows Figure 5 Shown:
[0035] see Figure 5 , when the line insulator string 2 is porcelain or glass insulator string 14, a single large runway ring 3 is arranged between the second and third insulators on the transmission wire side, on the one hand, the main capacitance of the insulator string is increased, so that the insulator string is affected by stray The influence of capacitance is reduced, and the distributed voltage is uniform; on the other hand, it shields the high electric field at the insulator steel cap, steel foot and cement on the wire side. The large runway ring 3 is connected to the fittings with a bracket, and is equipotential with ...
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