High-tension porcelain insulator applied to power field

Abstract

The invention discloses a high-tension porcelain insulator applied to a power field. The high-tension porcelain insulator mainly comprises an insulating bush, an upper porcelain insulator body part and a lower porcelain insulator body part. The upper porcelain insulator body part comprises insulating umbrella skirts, epoxy sleeves and metal stress cones; the lower porcelain insulator body part comprises sealing porcelain insulator bodies and bolt parts; each metal stress cone is arranged at one end of the corresponding insulating bush in a sleeved mode, each epoxy sleeve is arranged on the corresponding metal stress cone in a sleeved mode, each insulating umbrella skirt is arranged outside the corresponding epoxy sleeve in a sleeved mode, and each sealing porcelain insulator body is arranged at the other end of the insulating bush in a sleeved mode and fixed to the corresponding metal stress cone through the bolt parts. The high-tension porcelain insulator further comprises fixing plates I and fixing plates II, the fixing plates I are integrally arranged on the metal stress cores, the fixing plates II are integrally arranged on the sealing porcelain insulator bodies, and the fixing plates I and the fixing plates II are fixed through bolts. The total weight of the whole structure can be reduced in the mode that the sealing porcelain insulator bodies are fixed through the metal stress cones, and work intensity of staff is also relieved. The whole structure has the advantages of being reasonable in design, scientific, practical, convenient to install and the like.

Description

technical field [0001] The invention relates to the technical field of electric power, in particular to a high-voltage porcelain bottle used in the electric power field. Background technique [0002] In the electric power elevated line, an umbrella skirt-shaped insulating joint is usually installed between the power line and the elevated cross-arm. The power line passes through the insulating joint to stabilize the electric field between the power lines at the elevated line to avoid turbulent electric fields and affect the entire power transmission. Existing Since there are only plastic stress cones inside the insulating joint, under the action of high electric field and thermal field, the aging of the plastic stress cone will cause the change (relaxation) of the interface pressure, thereby reducing the electrical strength. At the same time, the porcelain bottle body of the existing structure is connected separately All adopt the ceramic connection method of the porcelain bo...

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Problems solved by technology

[0002] In the electric power elevated line, an umbrella skirt-shaped insulating joint is usually installed between the power line and the elevated cross-arm. The power line passes through the insulating joint to stabilize the electric field between the power lines at the elevated line to avoid turbulent electric fields and affect the entire power transmission. Existing Since there are only plastic stress cones inside the insulating joint, under the action of high electric field and thermal field, the aging of the plastic stress cone will cause the change (relaxation) of the interface pressure, thereby reducing the electrical strength. At the same time, the porcelain bottle body of the existing structure is connected separately All adopt the ceramic connection method of the porcelain bottle body. In order to stabilize the connection, the casted porcelain bottle body will appear cumbersome, which will increase the force of the cross arm and increase the work intensity of the installer.

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