CN216597388U - Earthing switch installation conversion equipment after GW4 type isolator overhaul - Google Patents
Earthing switch installation conversion equipment after GW4 type isolator overhaul Download PDFInfo
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- CN216597388U CN216597388U CN202122771798.8U CN202122771798U CN216597388U CN 216597388 U CN216597388 U CN 216597388U CN 202122771798 U CN202122771798 U CN 202122771798U CN 216597388 U CN216597388 U CN 216597388U
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Abstract
The utility model relates to a grounding switch installation conversion device after overhaul of a GW4 type isolating switch, which comprises a conductive aluminum plate and a grounding switch female head installation rod; the conductive aluminum plate is a rectangular plate body, and four mounting through holes are symmetrically formed in the conductive aluminum plate; the mounting rod of the ground cutter female head is a circular rod body, is arranged on one side end face of the conductive aluminum plate and is fixedly connected with the conductive aluminum plate. According to the utility model, the grounding switch static contact can be installed after the aluminum conductive arm is replaced, so that the problems that a grounding switch system does not need to be installed again after the disconnecting switch is overhauled, repeated investment and the like are solved, the problem of changing the grounding switch is omitted, the potential safety hazard that the grounding switch is not debugged in place is eliminated, and the economic benefit is improved; meanwhile, the installation and conversion device for the grounding switch after overhaul of the GW4 type isolating switch can improve the overhaul work efficiency, reduce the number of maintainers and the debugging and installation time, further utilize the original grounding switch to complete grounding, and improve the work efficiency.
Description
Technical Field
The utility model relates to the technical field of electric power overhaul, in particular to a grounding knife installation conversion device for a GW4 type disconnecting switch after overhaul.
Background
Under the premise of rapid development of the current power grid, a large batch of transformer substation disconnecting switches established at early stage need to be overhauled, and in the process of overhauling, a common mode is to replace a conductive arm. Model GW4 is a classical model of isolating switch, and the failure rate in operation rises along with the increase of the operation period. The common problems in the operation and maintenance process are as follows: a. the method comprises the steps of a, closing a disconnecting switch, enabling the disconnecting switch to be closed by a cylindrical contact, enabling the cylindrical contact to abut against a contact block during closing, b, enabling the center line of 2 conducting rods to be not on 1 line during closing to be in a splayed shape, enabling the cylindrical contact to be in unilateral contact with the strip-shaped contact finger, c, operating the disconnecting switch to be difficult to operate, causing phenomena of instability, clamping stagnation and serious shaking, d, operating parts of a transmission system to be damaged, such as joint separation welding, crank arm fracture, connecting rod bending and the like, and being incapable of operating and maintaining the disconnecting switch with a long operating life in conventional disconnecting switch maintenance, wherein various problems occur frequently within 1-2 years even after the disconnecting switch is maintained. All final methods are to overhaul the conductive part, namely to replace the brand new conductive excellent "maintenance-free" conductive part, but after the overhaul, the GW4 type isolation switch has a single or double ground knife, in order to consider the practical economy, the original copper conductive part is replaced by the aluminum conductive part, and the ground knife is not replaced, which results in the old ground knife static contact having no installation position.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a grounding switch installation and conversion device after overhaul of a GW4 type isolation switch, and a grounding switch static contact can be installed after an aluminum conductive arm is replaced by the grounding switch installation and conversion device after overhaul of a GW4 type isolation switch, so as to achieve the purpose of not replacing a grounding switch.
The technical scheme adopted by the utility model is as follows:
a grounding switch installation conversion device after overhaul of a GW4 type isolating switch comprises a conductive aluminum plate and a grounding switch female head installation rod; the conductive aluminum plate is a rectangular plate body, and four mounting through holes are symmetrically formed in the conductive aluminum plate; the ground tool female head mounting rod is a circular rod body, is arranged on one side end face of the conductive aluminum plate and is fixedly connected with the conductive aluminum plate.
Furthermore, the four mounting through holes are waist-shaped through holes.
Furthermore, the distance between the centers of the waist-shaped through holes is 10cm, and the length of each waist-shaped through hole is 7 cm.
Further, the interior of the ground tool bit mounting rod is hollow.
Further, the surface of the conductive aluminum plate is covered with a zinc coating.
Further, the length of the conductive aluminum plate is 22cm, and the width of the conductive aluminum plate is 13 cm; the length of the ground knife female head mounting rod is 30cm, and the diameter is 4 cm.
The utility model has the beneficial effects that:
1. this earthing switch installation conversion equipment after GW4 type isolator overhaul is through adopting waist shape through-hole design, can the fore-and-aft regulation mounted position, but the practicality is strong, adopts the aluminum product as the raw materials, practices thrift the cost, workable, and the quality is light, does not increase extra weight, and aluminum product surface galvanization makes electric conductivity better.
2. The grounding switch installation conversion device after overhaul of the GW4 type disconnecting switch is suitable for installation of grounding switches after overhaul of GW4 type disconnecting switches of 10kV and 110kV, is strong in adaptability and high in universality, and can be matched with installation implementation of vertical rotation grounding switches. The use of the grounding switch installation and conversion device after overhaul of the GW4 type disconnecting switch reduces the number of overhaul operation people, shortens the operation time, reduces the labor intensity, improves the installation efficiency, ensures the safe operation of power grid equipment, and can create better safety and production benefits.
3. The grounding knife installation and conversion device after overhaul of the GW4 type disconnecting switch is simple and reasonable in structure, portable and easy to operate, and is very favorable for popularization and application in the field of contact replacement of electrical installation disconnecting switches. Through actual operation tests, compared with the traditional method, the method for completing the replacement of the whole set of the isolating switch conductive circuits with the same quantity saves 30% -50% of time, reduces the cooperation among personnel in the process of working, and effectively improves the maintenance safety.
Drawings
FIG. 1 is a schematic view of the installation position of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
in fig. 1-2, the 1-GW 4 type disconnecting switch after overhaul is installed with the conversion device, 2-conductive aluminum plate, 3-ground knife female head installation pole, 4-installation through hole, 5-disconnecting switch, 6-pillar porcelain insulator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
According to investigation, the original switches belong to a Toyodo GW4 type, the conductive parts are all made of copper, the vertical distance from the center of the installation position of the ground cutter head to the top of a porcelain insulator of a support is 3cm, the installation diameter is 4cm, and the horizontal installation position is not fixed. The principle of overhaul of the isolating switch is to replace a conductive part, but because the original isolating switch adopts a copper pipe as the conductive part, the loop resistance of the whole conductive part is large and multiple parts generate heat due to the process and the material. Therefore, the conductive part of the original factory is not replaced, the aluminum conductive arm is adopted, but the ground cutter cannot be installed, and if the ground cutter needs to be installed, the whole set of ground cutter needs to be completely replaced.
Based on the above problems, as shown in fig. 1-2, the present invention is a grounding switch installation and conversion device after overhaul of GW4 type isolating switch, where the grounding switch installation and conversion device 1 after overhaul of GW4 type isolating switch includes a conductive aluminum plate 2 and a grounding switch female head installation rod 3; the conductive aluminum plate 2 is a rectangular plate body, and four mounting through holes 4 are symmetrically formed in the conductive aluminum plate 2; female first installation pole of earthing knife 3 is the circular body of rod, and female first installation pole of earthing knife 3 locates conductive aluminum plate 2's a side end face, female first installation pole of earthing knife 3 and conductive aluminum plate 2 fixed connection.
As shown in fig. 1, after the isolating switch 5 is electrically replaced, the grounding switch mounting and converting device 1 after the overhaul of the GW4 isolating switch is mounted below a new conductive arm, specifically, the connecting bolt between the pillar porcelain bottle 6 and the isolating switch 5 is passed through four mounting through holes 4 on the conductive aluminum plate 2; at this time, the original ground tool bit can be mounted on the ground tool bit mounting rod 3 of the ground tool bit mounting and converting device 1 after the overhaul of the GW4 type disconnecting switch.
In this embodiment, a specific manufacturing method of the grounding switch mounting and converting device 1 after overhaul of the GW4 type disconnecting switch is given:
the conductive aluminum plate 2 adopts an aluminum plate as a raw material, so that the cost is saved, the processing is easy, the weight is light, and the extra weight is not increased; the conductive aluminum plate 2 has a length of 22cm and a width of 13 cm; in order to increase the conductivity, further, the surface of the conductive aluminum plate 2 may be covered with a zinc plating layer, so that the conductivity is better. Female first installation pole of earthing knife 3 adopts the aluminium bar, and the length of female first installation pole of earthing knife 3 is 30cm, and the diameter is 4cm, and female first installation pole of earthing knife 3 welds with conductive aluminum plate 2's a side end face. Size preparation more than adopting for just apart from 6 tops of pillar vase 3cm after original ground sword box installation, satisfy the required distance of ground sword box and pillar vase 6. In order to reduce the weight of the earthing switch mounting and switching device 1 after the overhaul of the GW4 type disconnecting switch, the inside of the earthing switch female head mounting rod 3 may be hollow.
In another embodiment of the present invention, as shown in fig. 2, the four mounting through holes 4 are kidney-shaped through holes. The distance between the centers of the waist-shaped through holes is 10cm, and the length of each waist-shaped through hole is 7 cm.
Because the installation position of the earthing switch is different from the front and back, and only the vertical direction is stressed, the waist-shaped through hole is adopted in the horizontal direction, so that the installation position of the earthing switch installation and conversion device 1 after the overhaul of the GW4 type isolating switch can be adjusted from front to back, the practicability is high, and the installation is more convenient.
Claims (6)
1. The utility model provides a GW4 type isolator installs conversion equipment after overhaul which characterized in that: the grounding switch installation conversion device after the overhaul of the GW4 type disconnecting switch comprises a conductive aluminum plate and a grounding switch female head installation rod; the conductive aluminum plate is a rectangular plate body, and four mounting through holes are symmetrically formed in the conductive aluminum plate; the ground tool female head mounting rod is a circular rod body, is arranged on one side end face of the conductive aluminum plate and is fixedly connected with the conductive aluminum plate.
2. The installation and conversion device for the grounding switch after the overhaul of the GW4 type disconnecting switch, according to claim 1, wherein the installation and conversion device comprises: the four mounting through holes are waist-shaped through holes.
3. The installation and conversion device for the grounding switch after overhaul of GW4 type disconnecting switch as claimed in claim 2, wherein: the distance between the centers of the waist-shaped through holes is 10cm, and the length of each waist-shaped through hole is 7 cm.
4. The installation and conversion device for the grounding switch after the overhaul of the GW4 type disconnecting switch, according to claim 1, wherein the installation and conversion device comprises: the interior of the ground tool female head mounting rod is hollow.
5. The installation and conversion device for the grounding switch after the overhaul of the GW4 type disconnecting switch, according to claim 1, wherein the installation and conversion device comprises: the surface of the conductive aluminum plate is covered with a zinc coating.
6. The installation and conversion device for the grounding switch after the overhaul of the GW4 type disconnecting switch, according to claim 1, wherein the installation and conversion device comprises: the conductive aluminum plate is 22cm in length and 13cm in width; the length of the ground knife female head mounting rod is 30cm, and the diameter is 4 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122771798.8U CN216597388U (en) | 2021-11-12 | 2021-11-12 | Earthing switch installation conversion equipment after GW4 type isolator overhaul |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122771798.8U CN216597388U (en) | 2021-11-12 | 2021-11-12 | Earthing switch installation conversion equipment after GW4 type isolator overhaul |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216597388U true CN216597388U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122771798.8U Active CN216597388U (en) | 2021-11-12 | 2021-11-12 | Earthing switch installation conversion equipment after GW4 type isolator overhaul |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216597388U (en) |
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2021
- 2021-11-12 CN CN202122771798.8U patent/CN216597388U/en active Active
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