CN220188557U

CN220188557U - Junction tool for bushing end screen test

Info

Publication number: CN220188557U
Application number: CN202320931011.6U
Authority: CN
Inventors: 熊舟; 何强; 韩尊占; 焦东围
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2023-04-23
Filing date: 2023-04-23
Publication date: 2023-12-15
Anticipated expiration: 2033-04-23

Abstract

The utility model provides a wiring tool for a bushing terminal screen test, which is integrally of a cross-shaped structure and comprises a first wiring terminal, wherein a second wiring terminal is connected to the other opposite side of the first wiring terminal, and a third wiring terminal and a fourth wiring terminal which are symmetrically arranged are vertically arranged at the middle parts of the first wiring terminal and the second wiring terminal; the first wiring terminal, the second wiring terminal, the third wiring terminal and the fourth wiring terminal are all made of conductive materials and are mutually conducted; the outside of first binding post, second binding post, third binding post and fourth binding post all wraps up the insulation through insulating cover. The tool can be well suitable for test wiring of the ground structure of the bushing end screen of various different types, is simple and convenient to use, reduces damage to the end screen lead wire, and reduces the probability of end screen lead wire faults.

Description

Junction tool for bushing end screen test

Technical Field

The utility model relates to the field of wiring devices, in particular to a wiring tool for a bushing end screen test.

Background

The sleeve mainly comprises a capacitor core, a porcelain sleeve, a wiring terminal, a terminal screen and the like, is led out to be grounded through the terminal screen, and can measure the capacitance value and the dielectric loss factor of the sleeve through the terminal screen, so that the insulation condition of the sleeve is judged, and the insulation performance of the sleeve is mastered. When a sleeve test is carried out, the end screen of the sleeve is usually required to be grounded and opened, and the end screen grounding modes mainly comprise the following steps:

(1) The spring pressing push-pull type grounding mode is adopted, and the push-pull copper sleeve on the end screen lead-out rod and the sleeve flange are connected and grounded through bolts, as shown in fig. 1, when sleeve test is carried out, a tool is needed to push the copper sleeve open, a conductor is inserted into a pin hole of a lead wire of the end screen, and the end screen is grounded and opened.

(2) The grounding mode of the grounding cap with the elastic sheet is adopted, the elastic sheet structure of the grounding cap is connected with the end screen lead wire to be grounded, and when a sleeve test is carried out, the grounding cap is only required to be opened.

(3) The end screen lead wire grounding spring piece grounding mode is adopted, the lead wire grounding spring piece is grounded, and when a sleeve test is carried out, the end screen cover is opened, and the lead wire grounding spring piece is jacked up by a tool.

Because of the difference of the ground structure of the end screen, the end screen is usually opened by adopting crocodile clips of different types, and the ground process is determined by:

(1) Because the end screen grounding structure is different, the end screen is opened by adopting crocodile clips of different types, no unified tool exists at present, and the working efficiency is lower.

(2) For the end screen adopting the spring pressing push-pull type grounding mode, the grounding can be usually opened repeatedly, and the end screen leads are made of copper, so that scratches are easily caused when the crocodile clip is used for jacking.

Disclosure of Invention

In order to solve the technical problems, the utility model provides the bushing end screen test wiring tool which can be well suitable for test wiring of bushing end screen grounding structures of various different types, is simple and convenient to use, reduces damage to end screen leads, reduces the probability of end screen lead faults, improves maintenance efficiency and equipment stability, and realizes standardization of equipment maintenance operation.

In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: the utility model provides a sleeve pipe end screen test wiring tool, the instrument wholly adopts cross structure, including first binding post, and the opposite side of first binding post is connected with the second binding post, and the third binding post and the fourth binding post of symmetrical arrangement have been arranged perpendicularly to the middle part of first binding post and second binding post;

the first wiring terminal, the second wiring terminal, the third wiring terminal and the fourth wiring terminal are all made of conductive materials and are mutually conducted;

the outside of first binding post, second binding post, third binding post and fourth binding post all wraps up the insulation through insulating cover.

The end part of the first wiring terminal is provided with a wiring terminal which is used for connecting a crocodile clip or a test wire;

or the binding post is used for a test connection of the end screen with the grounding cap with the elastic sheet.

The second wiring terminal and the fourth wiring terminal are all round hole terminals for connecting test wires; or the second wiring terminal and the fourth wiring terminal are used for opening the grounding spring plate of the end screen lead wire to be grounded.

And pin holes which are radially arranged are machined on the third wiring terminal and matched with the fixing pins, and springs are arranged in the third wiring terminal.

The third binding post is used for pushing up the spring and compresses tightly push-pull formula ground connection, and third binding post and last screen lead wire match, and when last screen lead wire pinhole and third binding post's pinhole align, insert the fixed pin.

And after one of the first binding post, the second binding post, the third binding post or the fourth binding post is connected with the end screen, selecting any other binding post to be connected with the test instrument.

The utility model has the beneficial effects that:

1. the tool can be well adapted to test wiring of the ground structure of the bushing end screen of various different types, is simple and convenient to use, reduces damage to the end screen lead, reduces the probability of failure of the end screen lead, improves the overhaul efficiency and equipment stability, and realizes standardization of equipment overhaul operation.

2. Through adopting foretell terminal can be convenient realization crocodile clamp and test line's connection.

3. The terminal post can adapt to the grounding structure of the terminal screen spring piece type grounding cap.

4. The second wiring terminal and the fourth wiring terminal can be well adapted to wiring of the grounding structure of the end screen spring piece type grounding cap.

5. The third binding post is used for pushing up the spring and compresses tightly push-pull formula ground connection, and third binding post and last screen lead wire match, and when last screen lead wire pinhole and third binding post's pinhole align, insert the fixed pin.

Drawings

The utility model is further described below with reference to the drawings and examples.

Fig. 1 is a spring-loaded push-pull grounding structure for a final screen.

Fig. 2 is a structural diagram of the present utility model.

In the figure: the wire connecting terminal comprises a wiring terminal 1, a first wiring terminal 2, a spring 3, a pin hole 4, a third wiring terminal 5, a fixing pin 6, a second wiring terminal 7, a fourth wiring terminal 8 and an insulating sleeve 9.

Detailed Description

Embodiments of the present utility model will be further described with reference to the accompanying drawings.

Referring to fig. 1-2, a wiring tool for a bushing tip screen test is disclosed, wherein the whole tool adopts a cross structure and comprises a first wiring terminal 2, a second wiring terminal 7 is connected to the other opposite side of the first wiring terminal 2, and a third wiring terminal 5 and a fourth wiring terminal 8 which are symmetrically arranged are vertically arranged in the middle of the first wiring terminal 2 and the second wiring terminal 7; the first wiring terminal 2, the second wiring terminal 7, the third wiring terminal 5 and the fourth wiring terminal 8 are all made of conductive materials and are mutually conducted; the outside of the first wiring terminal 2, the second wiring terminal 7, the third wiring terminal 5 and the fourth wiring terminal 8 are all wrapped and insulated by an insulating sleeve 9. The tool is suitable for test wiring of the ground structure of the bushing end screen in various different types, is simple and convenient to use, reduces damage to the end screen lead, reduces the probability of end screen lead fault, improves maintenance efficiency and equipment stability, and realizes standardization of equipment maintenance operation. Through the first binding post 2, second binding post 7, third binding post 5 and fourth binding post 8 can be fine adaptation different model binding posts, has strengthened its adaptability.

Further, a binding post 1 is arranged at the end part of the first binding post 2, and the binding post 1 is used for connecting an alligator clip or a test wire; the connection between the crocodile clip and the test wire can be conveniently realized by adopting the binding post 1.

Further, or the binding post 1 is used for a test connection of the end screen with a grounding cap with a spring piece. The terminal 1 can adapt to the grounding structure of the terminal screen spring piece type grounding cap.

Further, the second connecting terminal 7 and the fourth connecting terminal 8 are round hole terminals for connecting test wires; or the second wiring terminal 7 and the fourth wiring terminal 8 are used for opening the grounding spring piece of the end screen lead wire to be grounded. The second wiring terminal 7 and the fourth wiring terminal 8 can be well adapted to wiring of the grounding structure of the end screen spring piece type grounding cap.

Further, the third connecting terminal 5 is provided with pin holes 4 arranged in a radial direction, the pin holes 4 are matched with the fixing pins 6, and the spring 3 is arranged in the third connecting terminal 5. The third binding post 5 is used for pushing up the spring and compresses tightly push-pull type ground connection, and third binding post 5 and last screen lead wire match, when last screen lead wire pinhole aligns with the pinhole 4 of third binding post 5, inserts fixed pin 6. The connection structure can be well adapted to the wiring of the end screen spring pressing push-pull type grounding structure.

Further, after one of the first connecting terminal 2, the second connecting terminal 7, the third connecting terminal 5 or the fourth connecting terminal 8 is connected with the end screen, any other terminal is selected to be connected with the test instrument. Through the connection mode, the flexibility of the wiring tool is enhanced.

The working process and principle of the utility model are as follows:

when the jack spring is pressed to press the wiring of the push-pull type grounding structure, a third wiring terminal 5 is selected, the third wiring terminal 5 is inserted into a corresponding wiring terminal, and when a terminal screen lead pin hole is aligned with a wiring tool pin hole, a fixing pin 6 is inserted; when the end screen is connected with the ground through the grounding cap with the elastic sheet, a first connecting terminal 2 is selected, and a test wire is connected through the crocodile clip; when the terminal screen lead wire is grounded, the second wiring terminal 7 or the fourth wiring terminal 8 is selected to be connected with the test wire.

Claims

1. The utility model provides a sleeve pipe end screen test wiring tool which is characterized in that, the instrument wholly adopts cross structure, including first binding post (2), the opposite side of first binding post (2) is connected with second binding post (7), and the third binding post (5) and the fourth binding post (8) of symmetrical arrangement have been arranged perpendicularly to the middle part of first binding post (2) and second binding post (7);

the first wiring terminal (2), the second wiring terminal (7), the third wiring terminal (5) and the fourth wiring terminal (8) are all made of conductive materials and are mutually conducted;

the outside of first binding post (2), second binding post (7), third binding post (5) and fourth binding post (8) all is through insulating cover (9) parcel insulation.

2. The bushing terminal screen test wiring tool according to claim 1, wherein a wiring terminal (1) is arranged at the end part of the first wiring terminal (2), and the wiring terminal (1) is used for connecting an alligator clip or a test wire;

or the binding post (1) is used for a test connection wire of which the end screen is grounded by adopting a grounding cap with an elastic sheet.

3. A bushing terminal test connection tool according to claim 1, characterized in that the second connection terminal (7) and the fourth connection terminal (8) are both round hole terminals for connection of test wires; or the second binding post (7) and the fourth binding post (8) are used for opening the earthing shrapnel of end screen lead wire and earthing.

4. The bushing terminal test wiring tool according to claim 1, wherein the third wiring terminal (5) is provided with pin holes (4) which are radially arranged, the pin holes (4) are matched with fixing pins (6), and springs (3) are arranged inside the third wiring terminal (5).

5. The bushing terminal test wiring tool according to claim 4, wherein the third wiring terminal (5) is used for pushing up a spring to press a push-pull type ground, the third wiring terminal (5) is matched with a terminal lead, and when the terminal lead pin hole is aligned with the pin hole (4) of the third wiring terminal (5), a fixing pin (6) is inserted.

6. A bushing terminal test connection tool according to claim 1, characterized in that one of the first connection terminal (2), the second connection terminal (7), the third connection terminal (5) or the fourth connection terminal (8) is connected to the terminal, and that any other terminal is selected for connection to the test instrument.