CN221487343U - Manual operation isolation fracture - Google Patents
Manual operation isolation fracture Download PDFInfo
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- CN221487343U CN221487343U CN202322709898.7U CN202322709898U CN221487343U CN 221487343 U CN221487343 U CN 221487343U CN 202322709898 U CN202322709898 U CN 202322709898U CN 221487343 U CN221487343 U CN 221487343U
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- 238000002955 isolation Methods 0.000 title abstract description 5
- 239000004020 conductor Substances 0.000 claims abstract description 118
- 239000012212 insulator Substances 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000012360 testing method Methods 0.000 abstract description 21
- 238000012795 verification Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to the field of GIS tests, and discloses a manually operated isolation fracture, which comprises a driving component, an inner conductor I arranged on a voltage transformer, an inner conductor II arranged on a lightning arrester and an intermediate conductor arranged between the inner conductor I and the inner conductor II, wherein the driving component is used for driving the intermediate conductor to move, forming the fracture between the inner conductor I and the inner conductor II, or enabling the intermediate conductor to be positioned between the inner conductor I and the inner conductor II again and conducting connection of the three; according to the scheme, the middle conductor is driven to move, a fracture meeting insulation test margin is formed between the first inner conductor and the second inner conductor, then independent voltage withstand test verification can be carried out on the GIS, the trouble of repeated disassembly and assembly of the voltage transformer and the lightning arrester is avoided, a large amount of manpower and material resources and complicated operation flow and test can be saved, and the cost is greatly reduced.
Description
Technical Field
The utility model relates to the field of GIS tests, in particular to a manual operation isolation fracture.
Background
Currently, in 110kVGIS operation, a single-phase voltage transformer and a three-phase lightning arrester are generally arranged on a line interval, and are conventionally connected through detachable conductors.
Before the GIS is put into operation on site, all kinds of elements are required to be subjected to field test verification, power transmission operation is allowed after verification is qualified, the voltage transformer and the lightning arrester cannot bear too high test voltage (the voltage transformer possibly causes magnetic saturation to cause internal burning loss and the lightning arrester can cause conduction discharge) due to the particularity of the voltage transformer and the lightning arrester, therefore, the connection conductors of the voltage transformer and the lightning arrester are usually removed manually, a fracture is formed between the GIS and the voltage transformer and between the lightning arrester, the voltage transformer and the lightning arrester cannot be influenced when the GIS is subjected to high-voltage withstand voltage test, but the operation steps involve the disassembly of field conductors, the recovery of SF6 gas on site, the opening of a tank body, the disassembly of the conductors, the addition of a shielding case, the reinstallation of a sealing cover, the vacuum pumping and charging and a series of tests, and the complicated process are required, and great inconvenience is caused to the field installation and operation.
The present utility model thus proposes a manually operated isolating fracture.
Disclosure of utility model
To solve the above-mentioned problems in the background, the present utility model provides a manually operated isolation fracture.
In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows.
The utility model provides a manual operation keeps apart fracture, includes drive component, sets up the inner conductor on the voltage transformer, sets up the inner conductor second on the arrester and sets up the intermediate conductor between inner conductor first and the inner conductor second, drive component is used for driving the intermediate conductor and removes, forms the fracture between inner conductor first and the inner conductor second, perhaps makes the intermediate conductor be located between inner conductor first and the inner conductor second again and make the three electrically conductive connection.
Further, a groove is formed in one end, facing the middle conductor, of the first inner conductor and one end, facing the middle conductor, of the second inner conductor, and a contact point I is embedded in the bottom of the groove.
Further, the intermediate conductor comprises an insulator, the insulator is provided with a mounting hole, two hole openings of the mounting hole are provided with built-in steps, two groups of sliding blocks are sleeved in the mounting hole in a sliding mode, one sides of the two groups of sliding blocks are opposite to each other are extended to form a sliding column, the free end of the sliding column extends out of the mounting hole, the free end of the sliding column is located in a groove in an initial state and is in a hemispherical shape, contacts II at the free end of the sliding column are inlaid to be in contact with contacts I, connection is achieved between the contacts II on the two groups of sliding columns through wiring located in the mounting hole, and springs are arranged between the two groups of sliding blocks.
Further, a convex pin extends from the middle position of the bottom of the groove, and a contact I is inlaid at the free end of the convex pin;
The end face of the free end of the sliding column is provided with an avoidance groove, the second contact is inlaid at the middle position of the groove bottom of the avoidance groove, and the groove diameter of the avoidance groove is larger than the outer diameter of the protruding pin.
Further, the outer circular surfaces of the first inner conductor and the second inner conductor are extended with side plates, and the side surfaces of the side plates facing the middle conductor are overlapped with the end surfaces of the free ends of the sliding columns in the initial state.
Further, the driving member includes a driving shaft, a rack provided on the insulator and perpendicular to the first inner conductor, and a gear engaged with the rack, one end of the driving shaft is extended to the outside and provided with a handle, and the other end is connected with the gear by power through a power transmission member.
Further, the power transmission member includes a worm gear.
Compared with the prior art, the utility model has the beneficial effects that:
According to the scheme, the middle conductor is driven to move, a fracture meeting insulation test margin is formed between the first inner conductor and the second inner conductor, then independent voltage withstand test verification can be carried out on the GIS, the trouble of repeated disassembly and assembly of the voltage transformer and the lightning arrester is avoided, a large amount of manpower and material resources and complicated operation flow and test can be saved, and the cost is greatly reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the first inner conductor, the second inner conductor, the intermediate conductor and the driving member;
FIG. 3 is a schematic diagram of the first inner conductor, the second inner conductor and the intermediate conductor;
FIG. 4 is a cross-sectional view of the first inner conductor, the second inner conductor, and the intermediate conductor;
FIG. 5 is a schematic diagram of the first and second inner conductors;
FIG. 6 is a partial schematic view of an intermediate conductor;
fig. 7 is an enlarged view of a in fig. 4.
The reference numerals in the drawings are:
10. A drive shaft; 11. a handle; 12. a rack; 13. a gear; 20. an intermediate conductor; 21. an insulator; 22. a mounting hole; 23. a spool; 24. a spring; 25. wiring; 26. a first contact; 27. an avoidance groove; 30. a groove; 31. a protruding pin; 32. and a side plate.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.
In the scheme, a refers to an inner conductor I arranged on a voltage transformer, b refers to an inner conductor II arranged on a lightning arrester, c refers to the lightning arrester, d refers to the voltage transformer, and e refers to a fracture formed during GIS high-voltage withstand voltage test.
According to the scheme, the middle conductor 20 is driven to move, a fracture meeting insulation test margin is formed between the first inner conductor and the second inner conductor, then independent voltage withstand test verification can be carried out on the GIS, the trouble of repeated disassembly and assembly of the voltage transformer and the lightning arrester is avoided, a large amount of manpower and material resources and complicated operation flow and test can be saved, and the cost is greatly reduced.
Specific:
As shown in fig. 1-7, a manually operated isolating fracture comprises a first inner conductor arranged on a voltage transformer, a second inner conductor arranged on a lightning arrester, an intermediate conductor 20 arranged between the first inner conductor and the second inner conductor, and a driving member, wherein the driving member is used for driving the intermediate conductor 20 to move, so that a fracture meeting insulation test margin is formed between the first inner conductor and the second inner conductor, or driving the intermediate conductor 20 to be positioned between the first inner conductor and the second inner conductor again, so that the three conductors are connected in a conductive manner.
As shown in fig. 5, a groove 30 is formed at one end of the first inner conductor and one end of the second inner conductor facing the middle conductor 20, and a contact point 26 is embedded at the bottom of the groove 30.
As shown in fig. 4 and 6, the intermediate conductor 20 includes an insulator 21, a mounting hole 22 is formed in the insulator 21, two inner steps are formed at two openings of the mounting hole 22, two sets of sliding blocks are sleeved in the mounting hole 22 in a sliding manner, a sliding column 23 extends from one opposite side of the two sets of sliding blocks, the free end of the sliding column 23 extends out of the mounting hole 22, in an initial state, the free end of the sliding column 23 is located in a groove 30, the free end of the sliding column 23 is hemispherical, a contact II embedded in the free end of the sliding column 23 is contacted with a contact I26, in addition, the contacts II on the two sets of sliding columns 23 are connected through a connection wire 25 located in the mounting hole 22, so that the intermediate conductor 20, the inner conductor I and the inner conductor II are connected in a conductive manner, and when a fracture is formed between the inner conductor I and the inner conductor II due to movement of the insulator 21, the contact I26 is separated from the contact II, and the contact II are disconnected.
A spring 24 is arranged between the two sets of sliders.
In the preferred embodiment, in the process of moving the insulator 21 to form a fracture between the first inner conductor and the second inner conductor, the groove 30 presses the outer spherical surface of the free end of the sliding column 23 to make the two sets of sliding columns 23 approach each other, the spring 24 is compressed, after the sliding column 23 is separated from the groove 30, the spring 24 releases the elastic force to drive the two sets of sliding columns 23 to separate, and in this process, the second contact embedded in the free end of the sliding column 23 inevitably contacts with the end surface of the first inner conductor or the second inner conductor and generates sliding friction, and the sliding friction easily causes damage to the second contact, so that:
As shown in fig. 5, a protruding pin 31 extends from the middle of the bottom of the groove 30, and the contact one 26 is embedded in the free end of the protruding pin 31.
As shown in fig. 6, the end face of the free end of the sliding column 23 is provided with an avoidance groove 27, and the second contact is embedded in the middle position of the groove bottom of the avoidance groove 27.
As shown in fig. 7, the groove diameter of the avoidance groove 27 is far greater than the outer diameter of the protruding pin 31, so that in the process of forming a fracture between the first inner conductor and the second inner conductor by moving the insulator 21, the outer spherical surface of the free end of the sliding column 23 is extruded by the groove 30, the sliding column 23 moves away from the groove bottom of the groove 30, the protruding pin 31 does not contact with the groove wall of the avoidance groove 27 because the groove diameter of the avoidance groove 27 is far greater than the outer diameter of the protruding pin 31, that is, the contact one 26 does not contact with an external part, in addition, when the sliding column 23 is separated from the groove 30 and contacts with the end surface of the first inner conductor or the second inner conductor, the contact one 26 does not contact with other parts except both contacts, so that the contact one is not contacted with the end surface of the first inner conductor or the second inner conductor, and the damage of the contact is reduced.
In the preferred embodiment, the outer circumferential surface of the first or second inner conductor extends with a side plate 32, and the side surface of the side plate 32 facing the middle conductor 20 coincides with the end surface of the free end of the sliding column 23 in the initial state, which means that after the fracture is formed, the notch of the avoidance groove 27 can be plugged by the side plate 32, so as to prevent impurities such as dust from entering the avoidance groove 27 in the subsequent test process.
As shown in fig. 2 and 3, the driving member includes a driving shaft 10, a rack 12 disposed on an insulator 21 and perpendicular to the first inner conductor, and a gear 13 meshed with the rack 12, wherein one end of the driving shaft 10 extends to the outside and is provided with a handle 11, and the other end of the driving shaft is in power connection with the gear 13 through a power transmission member, the power transmission member is implemented by using the existing power transmission route technical means, and the power transmission route of the power transmission member further includes a worm gear.
The working principle of the utility model is as follows:
The staff drives the drive shaft 10 to rotate through the handle 11, and then drives the gear 13 to rotate, so that the rack 12 moves, the rack 12 moves together with the insulator 21, and then the middle conductor 20 leaves from between the first inner conductor and the second inner conductor, so that a fracture meeting insulation test margin is formed between the first inner conductor and the second inner conductor, and then independent withstand voltage test verification can be carried out on the GIS, thereby avoiding the trouble of repeated disassembly and assembly of the voltage transformer and the lightning arrester, saving a large amount of manpower and material resources, complicated operation flow and test, and greatly reducing the cost.
In addition, in the operation and inspection of each year, the voltage transformer and the lightning arrester can be tested through forming a fracture, the front isolating switch is disconnected, the adjacent grounding switch is closed, and the voltage transformer and the lightning arrester are tested once through the connection of the grounding switch, so that the trouble of repeated disassembly and assembly of the voltage transformer and the lightning arrester is avoided, and the operation and inspection efficiency is improved.
The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.
Claims (7)
1. A manually operated isolating fracture, characterized in that: the lightning arrester comprises a driving component, an inner conductor I arranged on the voltage transformer, an inner conductor II arranged on the lightning arrester and an intermediate conductor (20) arranged between the inner conductor I and the inner conductor II, wherein the driving component is used for driving the intermediate conductor (20) to move, forming a fracture between the inner conductor I and the inner conductor II, or enabling the intermediate conductor (20) to be positioned between the inner conductor I and the inner conductor II again and enabling the inner conductor II and the inner conductor II to be connected in a conductive mode.
2. A manually operable isolating fracture according to claim 1, wherein: one end of the first inner conductor and one end of the second inner conductor, which faces the middle conductor (20), are provided with grooves (30), and the bottoms of the grooves (30) are embedded with first contacts (26).
3. A manually operable isolating fracture according to claim 2, wherein: the middle conductor (20) comprises an insulator (21), a mounting hole (22) is formed in the insulator (21), built-in steps are arranged at two orifices of the mounting hole (22), two groups of sliding blocks are sleeved in the mounting hole (22) in a sliding mode, sliding columns (23) are arranged on the sides, opposite to each other, of the two groups of sliding blocks in an extending mode, free ends of the sliding columns (23) extend out of the mounting hole (22), in an initial state, the free ends of the sliding columns (23) are located in grooves (30), the free ends of the sliding columns (23) are hemispherical, contacts II at the free ends of the sliding columns (23) are in contact with contacts I (26), connection is achieved between the contacts II on the two groups of sliding columns (23) through connecting wires (25) located in the mounting hole (22), and springs (24) are arranged between the two groups of sliding blocks.
4. A manually operable isolating fracture according to claim 3, wherein: a convex pin (31) extends from the middle position of the bottom of the groove (30), and a contact I (26) is embedded at the free end of the convex pin (31);
the end face of the free end of the sliding column (23) is provided with an avoidance groove (27), the second contact is inlaid at the middle position of the groove bottom of the avoidance groove (27), and the groove diameter of the avoidance groove (27) is larger than the outer diameter of the protruding pin (31).
5. A manually operable isolating fracture according to claim 3 or 4, wherein: the outer circumferential surfaces of the first inner conductor and the second inner conductor are extended with side plates (32), and the side surfaces of the side plates (32) facing the middle conductor (20) are overlapped with the end surfaces of the free ends of the sliding columns (23) in the initial state.
6. A manually operable isolating fracture according to claim 3, wherein: the driving component comprises a driving shaft (10), a rack (12) which is arranged on the insulator (21) and is perpendicular to the first inner conductor, and a gear (13) which is meshed with the rack (12), wherein one end of the driving shaft (10) extends out to the outside and is provided with a handle (11), and the other end of the driving shaft is in power connection with the gear (13) through a power transmission piece.
7. A manually operable isolating fracture according to claim 6, wherein: the power transmission member includes a worm gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322709898.7U CN221487343U (en) | 2023-10-10 | 2023-10-10 | Manual operation isolation fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322709898.7U CN221487343U (en) | 2023-10-10 | 2023-10-10 | Manual operation isolation fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221487343U true CN221487343U (en) | 2024-08-06 |
Family
ID=92371267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322709898.7U Active CN221487343U (en) | 2023-10-10 | 2023-10-10 | Manual operation isolation fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221487343U (en) |
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2023
- 2023-10-10 CN CN202322709898.7U patent/CN221487343U/en active Active
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