CN218548971U - Short circuit wiring auxiliary device - Google Patents

Abstract

The utility model provides a short-circuit wiring auxiliary device, which relates to the technical field of electric equipment. The short-circuit wiring auxiliary device includes an auxiliary device main body, the auxiliary device main body includes a first conductive plate and a second conductive plate, and the first The conductive plate is opposite to the second conductive plate. The auxiliary device main body of the short-circuit wiring auxiliary device provided by the utility model is provided with a pressure spring between the first conductive plate and the second conductive plate, and the pressure spring makes the first conductive plate and the second conductive plate have a tendency of relative movement, When the main body of the auxiliary device is sleeved on the wiring board, the first conductive plate and the second conductive plate clamp the wiring board under the action of the pressure spring, so that the main body of the auxiliary device is not easy to be separated from the wiring board, that is, the connection of the copper wire An auxiliary device main body is arranged at both ends, so that when the transformer is short-circuited, the copper wire is not easy to fall off, and the test connection of the transformer is optimized.

Description

Short circuit wiring aid

technical field

The utility model relates to the technical field of electric equipment, in particular to a short-circuit wiring auxiliary device.

Background technique

When the transformer is performing insulation resistance test, dielectric loss test, AC withstand voltage, short-circuit impedance test and other test items, it is necessary to short-circuit all the wiring boards of the high-voltage, medium-voltage and low-voltage windings of the transformer. At present, the most widely used short-circuit wiring method is that the testers use bare copper wires to wind and short-circuit the wiring boards of the bushings of each phase in turn. The testers need to constantly adjust the length of the bare copper wire according to the actual situation, and consider the fixing of the bare copper wire terminal. When the 220kV transformer is short-circuited, the tester needs to repeatedly climb the bushing, and working at heights endangers the safety of personnel.

In addition, there is a risk of falling off the bare copper wire when it is fixed with a wire clamp, and it may become loose or even break after repeated use. In summary, it can be found that the traditional method is time-consuming, labor-intensive, and high-risk when performing short-circuit wiring of power transformers.

Utility model content

The purpose of the utility model is to provide a short-circuit wiring auxiliary device to alleviate the technical problem that the bare copper wire is easy to fall off when the transformer is short-circuited.

The utility model provides an auxiliary device for short-circuit wiring, which includes a main body of the auxiliary device, the main body of the auxiliary device includes a first conductive plate and a second conductive plate, and the first conductive plate and the second conductive plate are arranged oppositely, so that Both ends of the first conductive plate in the first direction are respectively provided with a pressure spring, and the two pressure springs are respectively connected to the two ends of the second conductive plate in the first direction;

The first direction is perpendicular to the direction from the first conductive plate to the second conductive plate.

In an optional embodiment, the first conductive plate and the second conductive plate are made of copper.

In an optional embodiment, a first installation hole is provided on a side of the first conductive plate away from the second conductive plate, and a first fixing bolt is provided on the first installation hole.

In an optional embodiment, it also includes a connection line, one end of the connection line is provided with a first connection piece, a first connection hole is provided on the first connection piece, and the first fixing bolt is passed through the inside the first connecting hole.

In an optional embodiment, the surface of the first conductive plate and/or the second conductive plate is plated with silver.

In an optional embodiment, it also includes an insulating rod, the insulating rod includes an extension rod and a bracket, and the bracket is detachably arranged at one end of the extension rod;

The bracket includes a connecting rod, a first rod and a second rod, one end of the connecting rod is screwed on the extension rod, one end of the first rod and one end of the second rod are Connected with an end of the connecting rod away from the extension rod, the first support rod, the second support rod and the connecting rod form a Y-shaped structure.

In an optional embodiment, a second mounting hole is provided on a side of the second conductive plate away from the first conductive plate, and a second fixing bolt is provided on the second mounting hole.

In an optional embodiment, the other end of the connecting wire is provided with a second connecting piece, and a second connecting hole is arranged on the second connecting piece, and the second fixing bolt is passed through the second connecting piece. inside the hole.

In an optional embodiment, the connecting wire includes a copper wire and a transparent insulating sheath sheathed outside the copper wire, and the first connecting piece and the Second connecting piece.

In an optional embodiment, the pressing springs are detachably connected to the first conductive plate and the second conductive plate, respectively.

The auxiliary device main body of the short-circuit connection auxiliary device provided by the utility model is provided with a pressure spring between the first conductive plate and the second conductive plate, and the pressure spring makes the first conductive plate and the second conductive plate have a tendency of relative movement, When the main body of the auxiliary device is sleeved on the wiring board, the first conductive plate and the second conductive plate clamp the wiring board under the action of the pressure spring, so that the main body of the auxiliary device is not easy to be separated from the wiring board, that is, the copper wire An auxiliary device main body is arranged at both ends, so that when the transformer is short-circuited, the copper wire is not easy to fall off, and the test connection of the transformer is optimized.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is a schematic structural view of a short-circuit wiring auxiliary device provided by an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of the application of the short-circuit wiring auxiliary device shown in Fig. 1 to the short-circuit wiring of a transformer;

FIG. 3 is a schematic structural diagram of the short-circuit wiring auxiliary device shown in FIG. 1 applied to the wiring board down-leading function of a transformer.

Icon: 100-the first conductive plate; 200-the pressure spring; 300-the first rod; 400-connecting rod; 500-extended rod; 600-the second rod; 700-the second conductive plate; Main body; 900-wiring board; 110-transformer; 120-connecting line.

Detailed ways

The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to FIG. 1 , the utility model provides a short-circuit wiring auxiliary device, including an auxiliary device main body 800, the auxiliary device main body 800 includes a first conductive plate 100 and a second conductive plate 700, and the first conductive plate 100 and the The second conductive plate 700 is arranged opposite to each other, and the two ends of the first conductive plate 100 in the first direction are respectively provided with a pressure spring 200, and the two pressure springs 200 are respectively connected to the second conductive plate 700. The two ends of one direction are correspondingly connected;

The first direction is perpendicular to the direction from the first conductive plate 100 to the second conductive plate 700 .

In some embodiments, the direction from the first guide plate to the second guide plate is perpendicular to the first direction, and the two ends of the first conductive plate 100 in the first direction are respectively connected with a pressure spring 200 , and two pressure springs 200 One end of the two pressure springs 200 is respectively connected to one end of the first guide plate, and the other end of the two pressure springs 200 is respectively connected to one end of the second conductive plate 700. When the auxiliary device main body 800 is sleeved on the wiring board 900, the pressure springs 200 is in an extended state, that is, the two pressing springs 200 make the first conductive plate 100 and the second conductive plate 700 move toward each other, even if the first conductive plate 100 and the second conductive plate 700 clamp the terminal block 900, the main body of the auxiliary device 800 is firmly connected to the wiring board 900 , and the copper wire is connected to the auxiliary device main body 800 , so that when the test transformer 110 is short-circuited, the copper wire is not easily separated from the wiring board 900 .

In an optional embodiment, the first conductive plate 100 and the second conductive plate 700 are made of copper.

In an optional embodiment, a first installation hole is provided on a side of the first conductive plate 100 away from the second conductive plate 700 , and a first fixing bolt is provided on the first installation hole.

In an optional embodiment, it also includes a connecting wire 120, one end of the connecting wire 120 is provided with a first connecting sheet, and a first connecting hole is arranged on the first connecting sheet, and the first fixing bolt passes through in the first connection hole.

In order to facilitate the connection between the connecting wire 120 and the main body 800 of the auxiliary device, a first mounting hole is provided on the first guide plate, and a first connecting hole is provided on the first connecting piece provided on the connecting wire 120; After being inserted into the first connecting hole of a connecting piece, it is then screwed into the first mounting hole, thus realizing the connection between the connecting wire 120 and the first conductive plate 100 .

In an optional embodiment, the surface of the first conductive plate 100 and/or the second conductive plate 700 is plated with silver.

The material of the first conductive plate 100 and the second conductive plate 700 is copper, in order to increase the wear resistance of the first conductive plate 100 and the second conductive plate 700, the surface of the first conductive plate 100 and the second conductive plate 700 is plated Silver; the first conductive plate 100 and the second conductive plate 700 made of copper and silver-plated on the surface can meet the current requirements of the test, and have a simple structure, small size, large contact surface, less material, large current-carrying capacity, good conductivity and High thermal stability.

In an optional embodiment, an insulating rod is also included, the insulating rod includes an extension rod 500 and a bracket, and the bracket is detachably arranged at one end of the extension rod 500;

The bracket includes a connecting rod 400 , a first rod 300 and a second rod 600 , one end of the connecting rod 400 is screwed on the extension rod 500 , one end of the first rod 300 is connected to the second rod 600 . One ends of the two rods 600 are connected to the end of the connecting rod 400 away from the extension rod 500 , and the first rod 300 , the second rod 600 and the connecting rod 400 form a Y-shaped structure.

In order to facilitate the test personnel to install the short-circuit wiring auxiliary device on the terminal board 900 at a high place, the short-circuit wiring auxiliary device also includes an insulating rod, and the insulating rod includes an extension rod 500 and a bracket. The bracket is screwed on the extension rod 500 .

The first conductive plate 100 and the second conductive plate 700 of the auxiliary device main body 800 can be sleeved on the bracket under the action of the pressure spring 200, that is, the tester makes the first conductive plate 100 and the second conductive plate 700 overcome the pressure. The elastic force of the spring 200 inserts the first pole 300 and the second pole 600 between the first conductive plate 100 and the second conductive plate 700, and the pressing spring 200 makes the first conductive plate 100 and the second conductive plate 700 clamp Tighten the stand.

The tester moves the auxiliary device main body 800 to a high place through the extension rod 500, sets the auxiliary device main body 800 on the wiring board 900, and then the tester pulls the bracket out from the lower end of the auxiliary device main body 800, even if the auxiliary device main body 800 is fixed on terminal block 900.

When it is necessary to remove the auxiliary device main body 800 from the wiring board 900, the extension rod 500 inserts the bracket between the first conductive plate 100 and the second conductive plate 700, and then rotates the extension rod 500 to make the first branch of the bracket The rod 300 and the second support rod 600 apply external forces to the first conductive plate 100 and the second conductive plate 700 respectively, so that the distance between the first conductive plate 100 and the second conductive plate 700 increases, and then the auxiliary device main body 800 can move from on the wiring board 900.

In an optional embodiment, a second mounting hole is provided on a side of the second conductive plate 700 away from the first conductive plate 100 , and a second fixing bolt is provided on the second mounting hole.

In an optional embodiment, the other end of the connecting wire 120 is provided with a second connecting piece, and a second connecting hole is arranged on the second connecting piece, and the second fixing bolt is passed through the second connecting piece. in the connecting hole.

In some embodiments, a second mounting hole is provided on the second conductive plate 700, a first connection sheet is provided at one end of the connecting wire 120, a second connection sheet is provided at the other end, and a second connection hole is provided on the second connection sheet; After the two fixing bolts are inserted into the second connecting hole, they are screwed into the second mounting hole, so that the other end of the connecting wire 120 is connected to the second conductive plate 700 .

That is, two adjacent auxiliary device main bodies 800 are connected by a connecting wire 120, wherein the first conductive plate 100 of one auxiliary device main body 800 is connected to one end of the connecting wire 120, and the second conductive plate 700 of the other auxiliary device main body 800 is connected to The other end of the wire 120 is connected, that is, the auxiliary device main body 800 is installed on the wiring board 900 , so that the short-circuit connection of the transformer 110 is realized.

In an optional embodiment, the connecting wire 120 includes a copper wire and a transparent insulating sheath set outside the copper wire, and the first connecting piece and the Describe the second connecting piece.

In an optional embodiment, the pressing spring 200 is detachably connected to the first conductive plate 100 and the second conductive plate 700 respectively.

Two ends of the pressing spring 200 are respectively provided with hooks, and hanging ears matching the hooks of the pressing spring 200 are respectively provided on the first conductive plate 100 and the second conductive plate 700 .

A pressure spring 200 is arranged between the first conductive plate 100 and the second conductive plate 700 of the auxiliary device main body 800 of the short-circuit wiring auxiliary device provided by the utility model, and the pressure spring 200 makes the first conductive plate 100 and the second conductive plate 700 has a tendency of relative movement, that is, when the auxiliary device main body 800 is sleeved on the terminal board 900, the first conductive plate 100 and the second conductive plate 700 clamp the terminal board 900 under the action of the pressure spring 200, so that the auxiliary device The main body 800 of the device is not easily separated from the wiring board 900, that is, an auxiliary device main body 800 is provided at both ends of the copper wire, so that when the transformer 110 is short-circuited, the copper wire is not easy to fall off, and the test connection of the transformer 110 is optimized.

The transformer 110 is an important power transformation device in the power system, which plays a role in changing the voltage level. A handover test should be carried out before the new transformer 110 is put into operation; in order to detect the operating conditions of the transformer 110, a routine test of the transformer 110 needs to be carried out regularly; in order to eliminate the failure of the transformer 110, a diagnostic test is required. In the handover, routine and diagnostic tests, insulation resistance test, dielectric loss test, AC withstand voltage test, and short-circuit impedance test, all wiring boards 900 of the high-voltage, medium-voltage, and low-voltage windings of the transformer 110 need to be short-circuited. Referring to FIG. 2 and FIG. 3 , in addition to the short-circuit wiring with the transformer 110 , the short-circuit wiring auxiliary device can also be used to lead the contact point to the ground for wiring or line-changing operations.

The auxiliary device main body 800 of the short-circuit wiring auxiliary device is directly connected to the terminal board 900 without considering the insulation problem of connecting to the ground, and the effect is better than that of hand-wound bare copper wire. In addition to the purpose of short-circuit wiring, the main body 800 of the auxiliary device can also realize the function of leading down the wiring board 900 of the bushing, and the four-color wiring of red, green, yellow, and black can connect A(a), B(b), C(c ), O(o) phases are distinguished to avoid the problem of wiring errors.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (10)

1. An auxiliary device for short-circuit wiring, characterized in that it includes an auxiliary device main body (800), the auxiliary device main body (800) includes a first conductive plate (100) and a second conductive plate (700), and the first A conductive plate (100) is arranged opposite to the second conductive plate (700), and two ends of the first conductive plate (100) in the first direction are respectively provided with a pressure spring (200), and the two The pressing springs (200) are respectively connected to the two ends of the second conductive plate (700) in the first direction; The first direction is perpendicular to the direction from the first conductive plate (100) to the second conductive plate (700). 2. The short-circuit wiring auxiliary device according to claim 1, characterized in that, the material of the first conductive plate (100) and the second conductive plate (700) is copper. 3. The short-circuit wiring auxiliary device according to claim 2, characterized in that, a first installation hole is provided on the side of the first conductive plate (100) away from the second conductive plate (700), and a The first mounting hole is provided with a first fixing bolt. 4. The short-circuit wiring auxiliary device according to claim 3, further comprising a connecting wire (120), one end of the connecting wire (120) is provided with a first connecting piece, and a first connecting piece is arranged on the first connecting piece There is a first connection hole, and the first fixing bolt is passed through the first connection hole. 5. The short-circuit wiring auxiliary device according to claim 4, characterized in that, the surface of the first conductive plate (100) and/or the second conductive plate (700) is plated with silver. 6. The short-circuit wiring auxiliary device according to claim 1, characterized in that, it also includes an insulating rod, the insulating rod includes an extension rod (500) and a bracket, and the bracket is detachably arranged on the extension rod (500). one end; The support includes a connecting rod (400), a first rod (300) and a second rod (600), one end of the connecting rod (400) is screwed on the extension rod (500), and the first One end of a rod (300) and one end of the second rod (600) are both connected to an end of the connecting rod (400) away from the extension rod (500), and the first rod (300 ), the second support rod (600) and the connecting rod (400) form a Y-shaped structure. 7. The short-circuit wiring auxiliary device according to claim 4, characterized in that, a second mounting hole is provided on a side of the second conductive plate (700) away from the first conductive plate (100), and a second mounting hole is provided on the side of the second conductive plate (700). A second fixing bolt is arranged on the second mounting hole. 8. The short-circuit wiring auxiliary device according to claim 7, characterized in that, the other end of the connecting wire (120) is provided with a second connecting piece, and a second connecting hole is arranged on the second connecting piece, so that The second fixing bolt is passed through the second connecting hole. 9. The short-circuit wiring auxiliary device according to claim 8, characterized in that, the connecting wire (120) comprises a copper wire and a transparent insulating sheath sheathed outside the copper wire, The first connecting piece and the second connecting piece are arranged at both ends respectively. 10. The short-circuit wiring auxiliary device according to claim 1, characterized in that, the pressure spring (200) is detachably connected to the first conductive plate (100) and the second conductive plate (700) respectively .

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