Test system suitable for multi-split wire reversal fault research

Abstract

The invention relates to a test system suitable for multi-split wire reversal fault research, which comprises a split wire module (1), a reaction frame (2), a torque loading disk (3), a loading moduleand a monocular measurement module, wherein the split wire module (1) comprises a plurality of parallelly-arranged long ropes (11), spacer bars (12) and clump weights (13); the reaction frame (2) isarranged at two ends of the long ropes (11) respectively for drawing and pulling the long ropes (11); the loading module comprises a hoister (5) arranged correspondingly to the torque loading disk (3), a bracket (6) with an adjustable height, a thin rope (7) and a force sensor (8); and the monocular measurement module comprises a high-frequency camera (4) and a computer (10). The test system has the beneficial effects that multiple parameters are adjustable; the applicable research range is wide; research on the split wire reversal mechanism and the reversal characteristics are done in view ofthe initial tension, the split number, the split circle diameter, the number of spacer bars, the span, and the like, and the applicable range is wide.

Description

technical field [0001] The application belongs to the technical field of power transmission and distribution, and in particular relates to a test system suitable for the research on overturning faults of multi-split conductors. Background technique [0002] The combined action of ice and wind can easily cause large deformation and twisting of the split conductors. In severe cases, the split conductors can be turned over and twisted, causing damage to fittings, broken strands or even broken wires, and then causing power outages. It is of great significance to the safe and stable operation of high-voltage transmission lines and even power grids to analyze the mechanism of split conductor overturning, study the critical load conditions and self-recovery conditions for overturning of conductors, and propose corresponding repair measures and preventive measures. [0003] At home and abroad, there are few studies on the overturning and twisting faults of split conductors, and ther...

AI Technical Summary

Problems solved by technology

Theoretically, the overturning fault of the split conductor is mostly caused by large deformation and torsion, but the existing field research data only records the state after the overturning fault of the split conductor, and there is no complete record of the entire overturning process

To study the overturning characteristics of split conductors, it is inconvenient to operate and costly to conduct loading tests based on actual lines; based on finite element numerical simulation, it is difficult to simulate the complete overturn failure of split conductors due to the limitations of the existing general finite element software. Even if it can be realized, whether the calculated results are true or not still needs to be verified by actual measurements.

[0004] The research on the overturning of split conductors is mainly based on theory and finite element numerical simulation, but it is not realistic to simulate the overturning process of conductors based on actual lines. However, there are many limitations such as high cost and poor operability.

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