Static tensile force measurement system and method for claw-shaped fittings at the end of transformer high-voltage bushing

Abstract

The invention discloses a static tension measurement system and method for claw-shaped fittings at the end of a high-voltage bushing of a transformer. A frame body includes an upper beam, a lower beam, a left beam and a right beam, and the upper and lower beams of the frame are horizontal Three holes are arranged in the direction, the middle part of the frame is provided with a middle beam, the middle beam is provided with three holes in the horizontal direction, and the holes of the upper beam, the middle beam and the lower beam correspond in the vertical direction; the middle beam Including a fixed part and two connecting parts, the two ends of the fixed part are arranged on the frame body through the connecting parts, the top of the fixed part is higher than the upper beam and the lower beam in the horizontal direction, and the bottom is lower than the The upper beam and the lower beam; the upper beam, the lower beam, the left beam, the right beam and the connecting part are all provided with tension sensors. The invention solves the problem that the force of the claw-shaped fittings at the end of the transformer bushing of the existing substation is difficult to detect, and can realize the convenient, real-time and accurate detection of the pulling force of the claw-shaped fittings.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a static tension measuring system and method for a claw-shaped fitting at the end of a high-voltage bushing of a transformer. Background technique [0002] Fittings are iron or aluminum metal accessories widely used in power transmission lines. Most of the fittings need to withstand large tension during operation, and some of them must also ensure good electrical contact. Due to the unreasonable design of the wiring fittings at the end of the bushing of the UHV substation, the insufficient strength of the cover plate of the terminal at the end of the bushing, and the weak link in the sealing design, the lateral force of the terminal at the top of the bushing exceeds the design value, and the long-term effect Under the circumstances, the end of the bushing is deformed, the seal fails, and water enters, which eventually leads to an inter-turn short circuit fault in the main transforme...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a static tension measurement system and method for a horn-shaped fitting at the end of a transformer high-voltage bushing, which solves the problem that the actual force of the horn-shaped fitting at the end of a transformer bushing in an existing substation is difficult to detect, and can realize Convenient, real-time and accurate detection of the pull force of horn-shaped fittings, so as to monitor the use status of horn-shaped fittings and carry out timely maintenance or replacement

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