550kN composite insulator duplex double-hanging-point leveling suspension string

Abstract

The invention discloses a 550kN composite insulator duplex double-hanging-point leveling suspension string, which belongs to the technical field of electric power. The problem that the suspension string in the prior art has poor structural stability and a poor leveling effect due to the lack of an automatic balance adjustment device is solved. The 550kN composite insulator duplex double-hanging-point leveling suspension string includes a suspension yoke plate, suspension clamps, a first duplex suspension string, and a second duplex suspension string. The first duplex suspension string is composed of a single set of composite insulator strings. The second duplex suspension string is composed of two sets of composite insulators connected in parallel. The suspension clamps are uniformly distributed on the surface of the suspension yoke plate. A self-balancing device is arranged in the middle of the suspension clamps. A hammer piece is arranged below the self-balancing device. The self-balancing device is arranged to achieve force balance of the composite insulator strings. The force on the suspension clamps can be adjusted automatically, and thus, the suspension clamps can be stressed in a balanced manner. The first duplex suspension string and the second duplex suspension string are composed of different numbers of composite insulator strings, and the first duplex suspension string and the second duplex suspension string are more stable based on the stability of triangle.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to a 550kN composite insulator double-connected double-hanging-point leveling suspension string. Background technique [0002] Linear towers are widely used in UHV overhead transmission lines to support the tension section between conductors and ground wires. Suspended insulator strings are an important part of linear towers that connect conductors and iron towers and maintain electrical insulation between transmission conductors and iron towers. On the one hand, it is beneficial to reduce accidents such as wind deflection of conductors and pollution flashover, and improve the reliability of power grid operation; on the other hand, it is beneficial to reduce the width of line corridors. The existing Chinese patent database discloses a patent for a compact two-connected V-shaped suspension string for light ice areas. Its patent application number is 201410669560.6....

AI Technical Summary

Problems solved by technology

Its shortcoming is that although the strength of the connector is high, it can effectively improve the overall strength of the suspension string, but when it encounters strong wind or is installed in an environment such as uphill or downhill, the suspension string is prone to tilt and offset, which may easily cause damage between the suspension clamps. Uneven force, the transmission wires are close to each other or even entangled, which will cause problems such as corona and uneven electric field distribution.

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