A special traction bracket for transformer winding lead-out wires

Abstract

The invention discloses a dedicated traction support of an outgoing line of a transformer winding. The support is characterized by comprising a circular base (8) equipped with a trough hole (8-1), wherein a long screw (9) and a nut are disposed in the trough hole (8-1); the circular base (8) is connected to a tubular support (16), two sides of the tubular support have hollow parts (16-1), and a carbon fiber anti-wear sleeve (3) is inlaid into the inner side; pressing rings (4) with distributed balls (6) are connected to the tubular support (16); a rotary frame (5) composed of a rotary support (5-1) and a rotary ring (5-2) is sleeved between the pressing rings (4); a connecting end part of the rotary support (5-1) is connected to roller wheel supports (2) of a U-shaped limiting rod (1); and a roller wheel (14) is connected between the two roller wheel supports (2). According to the invention, the structure is simple; the size is small; use is convenient; working efficiency is increased; passing and leading are easier; twisting is avoided; a lead head can be pulled accurately; and hidden safety hazards are avoided.

Description

Technical field: [0001] The invention relates to a special traction support for transformer winding lead wires, belonging to the technical field of power system transformer maintenance. Background technique: [0002] The lead wire of the transformer winding must pass through the insulating porcelain sleeve and connect with the outside. The porcelain sleeve is the main insulation device of the transformer box, and at the same time plays a role in fixing the winding lead-out wires. [0003] When the transformer is overhauled on site or returned to the factory for maintenance, it is necessary to pull the winding lead wire to facilitate the installation of transformer accessories. The lead wire pull method used in the prior art is: one end of the bolt is connected with a nylon rope, and the other end is connected through a wire hole. The winding leads are directly drawn by the personnel on the transformer. The disadvantages of this traction method are: due to the hard friction...

AI Technical Summary

Problems solved by technology

The disadvantages of this traction method are: due to the hard friction between the traction line and the attachment, the friction force is relatively large, and the two are not concentric, so many people need to work together, which is more laborious; when many people work together, the traction force is not uniform. Sometimes it is large and sometimes small, causing the lead-out wire to sway greatly, which may easily cause damage to the accessories of the transformer; because the traction force is not enough, the lead-out wire is not pulled in place, and the attachment is difficult to install. Stepping on the ladder to correct the position of the lead-out can only pull out the lead-out of the lead-in smoothly. This method has great personal safety hazards.

Images