Static tension measurement system and method for one-shaped fittings at the end of transformer high-voltage bushing

Abstract

The invention discloses a system and method for measuring the static tension of an in-line fitting at the end of a high-voltage bushing of a transformer. The frame body includes an upper beam, a lower beam, a left beam and a right beam. Two holes are arranged in the horizontal direction, a middle beam is arranged in the middle of the frame body, and two holes are arranged in the middle beam in the horizontal direction, and the holes of the upper beam, the middle beam and the lower beam are corresponding in the vertical direction; The crossbeam includes a fixing part and two connecting parts. The two ends of the fixing part are arranged on the frame through the connecting parts. The top of the fixing part is higher than the upper crossbeam and the lower crossbeam in the horizontal direction, and the bottom is lower in the horizontal direction. The upper beam and the lower beam; the upper beam, the lower beam, the left beam, the right beam and the connecting parts are all equipped with tension sensors. The invention solves the problem that it is difficult to detect the force of the inline fittings at the end of the transformer bushing in the existing substation, and can realize the convenient, real-time and accurate detection of the pulling force of the inline fittings.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a system and method for measuring the static tension of an in-line 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 transf...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a static tension measurement system and method for the in-line fittings at the end of transformer high-voltage bushings. Realize the convenient, real-time and accurate detection of the pulling force of the inline fittings, so as to monitor the use status of the inline fittings and carry out timely maintenance or replacement

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