High-voltage tap fast clamping structure

Abstract

The utility model discloses a high -tension distribution line fast clamping structure, including channel steel, the top of channel steel is equipped with the lower board, the upper surface of lower board is equipped with the upper board, between channel steel, lower board and upper board passes through first bolt fixed connection, the one side of upper board is equipped with the upper locating hole, the one side of lower board is equipped with the lower locating hole, this structure can use distribution line first with distribution switch and coil tap connection, again in the proper position package insulating sleeve, use the locating hole cooperation of upper board and lower board with distribution line clamping, then through bolt fixed with transformer body channel steel two board materials of upper and nether, thereby completes the lead wire configuration work. The unreasonable process of original structure clamping not tight and fixed lead wire after connecting distribution switch and coil tap has been solved, and the production step has been optimized, the link of lead wire waste material has been reduced, the production time has been saved, and the production efficiency of transformer has been improved.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically to a quick-clamping structure for high-voltage tap changers. Background Technology

[0002] Currently, the traditional methods for fixing high-voltage leads are as follows: Figure 7 As shown, it typically consists of a wooden clamp 1, additional insulation 2, and lead wires 3. A conventional distribution transformer has 6 tap leads per phase. The 6 leads need to pass through the tap positioning holes on the wooden clamp 1 first, and then the entire assembly is wrapped with additional insulation 2 and fixed and clamped using the positioning holes on the wooden clamp 1. Due to structural limitations, the positioning holes can only clamp in one direction, either in length or width. After being fixed, it is then connected to the tap changer and coil taps.

[0003] This traditional solution has the following drawbacks: the tap lead clamp is not tight (due to structural limitations, it can only be clamped in one direction, either length or width); the tap line must first pass through the tap line positioning hole of the wooden clamp before it can be connected to the tap changer and coil tap; and the tap line must have a certain margin of wire length on both sides of the connection between the tap line and the tap changer and coil tap, resulting in a waste of lead material.

[0004] To address this, a quick-clamping structure for high-voltage tap changers is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a quick clamping structure for high-voltage tap changers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage tap changer quick clamping structure, including a channel steel, a lower plate on the top of the channel steel, an upper plate on the upper surface of the lower plate, and the channel steel, the lower plate and the upper plate are fixedly connected by a first bolt;

[0007] The upper plate has an upper positioning hole on one side, and the lower plate has a lower positioning hole on one side. Both the upper and lower positioning holes are U-shaped grooves, and multiple tap lines are clamped inside the upper and lower positioning holes.

[0008] Preferably, the openings of the lower positioning holes of the upper positioning hole are arranged opposite to each other.

[0009] Preferably, a lower fixing hole is provided on one side of the lower plate, and a high-voltage live wire is installed inside the lower fixing hole.

[0010] Preferably, the outer sides of the plurality of taps are covered with insulating sleeves, the insulating sleeves being made of paper or rubber.

[0011] Preferably, the upper and lower boards are made of wood.

[0012] Preferably, the upper plate has an upper through hole on the side near the channel steel, and the lower plate has a lower through hole on the side near the channel steel. The first bolt passes through the upper through hole and the lower through hole and is connected to the channel steel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This structure allows for the connection of the tap changer and coil taps using a tap wire, followed by covering the insulation sleeve at an appropriate position. The tap wire is then clamped using the positioning holes on the upper and lower plates. Finally, bolts are used to fix the upper and lower plates to the transformer body channel steel, thus completing the lead configuration. This solves the problems of loose clamping and the unreasonable process of fixing the leads before connecting the tap changer and coil taps, optimizing the production steps, reducing the generation of lead waste, saving production time, and improving the production efficiency of the transformer. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a bottom view of the structure of this utility model;

[0016] Figure 3 This is a side view of the structure of this utility model;

[0017] Figure 4 This is an exploded view of the structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the lower plate of this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the upper plate of this utility model;

[0020] Figure 7 This is a schematic diagram of the existing technology.

[0021] In the diagram: 1. Channel steel; 2. Upper plate; 21. Upper through hole; 22. Upper positioning hole; 3. Lower plate; 31. Lower through hole; 32. Lower fixing hole; 33. Lower positioning hole; 4. Tap wire; 5. Insulating sleeve; 6. First bolt; 7. High-voltage live wire. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-6 This utility model provides a technical solution: a high-voltage tap changer quick clamping structure, including a channel steel 1, a lower plate 3 on the top of the channel steel 1, an upper plate 2 on the upper surface of the lower plate 3, the channel steel 1, the lower plate 3 and the upper plate 2 are fixedly connected by a first bolt 6, and the upper plate 2 and the lower plate 3 are made of wood.

[0024] The upper plate 2 has an upper positioning hole 22 on one side and the lower plate 3 has a lower positioning hole 33 on one side. Both the upper positioning hole 22 and the lower positioning hole 33 are U-shaped grooves, and multiple tap lines 4 are clamped inside the upper positioning hole 22 and the lower positioning hole 33.

[0025] like Figure 4 As shown: the openings of the upper positioning hole 22 and the lower positioning hole 33 are set opposite to each other; through the above setting, the two U-shaped positioning holes set opposite to each other can clamp and restrict the tap wire 4, thus preventing the tap wire 4 from becoming loose.

[0026] like Figure 4 and Figure 5 As shown: A lower fixing hole 32 is provided on one side of the lower plate 3, and a high-voltage live wire 7 is installed inside the lower fixing hole 32; the position of the high-voltage live wire 7 can be restricted by the above settings.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown: Multiple taps 4 are covered with insulating sleeves 5, which are made of paper or rubber. Through the above arrangement, the multiple insulating sleeves 5 can make the taps 4 more stable in the positioning holes 22. The upper plate 2 and the lower plate 3 can squeeze the insulating sleeves 5, thereby making the taps 4 more secure.

[0028] like Figure 5 and Figure 6 As shown: the upper plate 2 has an upper through hole 21 on the side near the channel steel 1, and the lower plate 3 has a lower through hole 31 on the side near the channel steel 1. The first bolt 6 passes through the upper through hole 21 and the lower through hole 31 and is connected to the channel steel 1. With the above settings, the upper plate 2 and the lower plate 3 can be fixed on the upper surface of the channel steel 1 to ensure the stability of the upper plate 2 and the lower plate 3.

[0029] Working principle: First, connect the tap line 4 to the tap switch and the coil tap respectively. Then, wrap multiple layers of insulating sleeve 5 around the outside of the tap line 4 and place it inside the upper positioning hole 22 and the lower positioning hole 32. By moving the upper plate 2 and the lower plate 3, the two positioning holes are gradually reduced, thereby squeezing and clamping the insulating sleeve 5 on the outside of the tap line 4. After the tap line 4 is clamped, the upper plate 2 and the lower plate 3 are fixed to the channel steel 1 by the two first bolts 6.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage tap changer quick-clamping structure, comprising channel steel (1), characterized in that: The top of the channel steel (1) is provided with a lower plate (3), and the upper surface of the lower plate (3) is provided with an upper plate (2). The channel steel (1), the lower plate (3) and the upper plate (2) are fixedly connected by a first bolt (6). The upper plate (2) has an upper positioning hole (22) on one side, and the lower plate (3) has a lower positioning hole (33) on one side. Both the upper positioning hole (22) and the lower positioning hole (33) are U-shaped grooves. Multiple tap lines (4) are clamped inside the upper positioning hole (22) and the lower positioning hole (33).

2. The high-voltage tap changer quick-clamping structure according to claim 1, characterized in that: The openings of the upper positioning hole (22) and the lower positioning hole (33) are arranged opposite to each other.

3. The high-voltage tap changer quick clamping structure according to claim 1, characterized in that: A lower fixing hole (32) is provided on one side of the lower plate (3), and a high-voltage live wire (7) is installed inside the lower fixing hole (32).

4. The high-voltage tap changer quick-clamping structure according to claim 1, characterized in that: The outer sides of the multiple taps (4) are covered with insulating sleeves (5), which are made of paper or rubber.

5. The high-voltage tap changer quick clamping structure according to claim 1, characterized in that: The upper board (2) and the lower board (3) are made of wood.

6. The high-voltage tap changer quick-clamping structure according to claim 1, characterized in that: The upper plate (2) has an upper through hole (21) on the side near the channel steel (1), and the lower plate (3) has a lower through hole (31) on the side near the channel steel (1). The first bolt (6) passes through the upper through hole (21) and the lower through hole (31) and is connected to the channel steel (1).

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