CN217159246U

CN217159246U - GIS lightning arrester installation device capable of conducting withstand voltage test

Info

Publication number: CN217159246U
Application number: CN202221529088.2U
Authority: CN
Inventors: 刘洪佳; 李磊; 石志泉; 周红刚; 王文武; 张诚才; 宿鹏
Original assignee: SHANDONG TAIKAI TRANSFORMER CO Ltd
Current assignee: SHANDONG TAIKAI TRANSFORMER CO Ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-08-09
Anticipated expiration: 2032-06-20

Abstract

The utility model relates to a can carry out withstand voltage test's GIS arrester installation device belongs to GIS equipment field. The technical scheme includes that the GIS lightning arrester installation device capable of conducting the withstand voltage test comprises a shell, wherein a basin-type insulator is installed at the top of the shell, three upper static contacts are arranged in the basin-type insulator in a penetrating mode, three lower static contacts are arranged inside the shell, the lower static contacts and the upper static contacts are opposite to each other one by one and located at a certain distance below the corresponding upper static contacts, a moving contact is arranged between the lower static contacts and the upper static contacts, and the moving contact is connected with a moving device. The beneficial effects of the utility model are that, set up arrester installation device internal line into the form of opening and shutting the contact, remove the moving contact through the mobile device, with the internal circuit disconnection, to the arrester wholly carry out withstand voltage test together with the benzvalene form insulator, avoided experimental blind spot on the one hand, on the other hand has avoided the dismouting of relapseing of arrester, has improved the installation effectiveness.

Description

GIS lightning arrester installation device capable of conducting withstand voltage test

Technical Field

The utility model relates to a GIS equipment field especially relates to a can carry out withstand voltage test's GIS arrester installation device.

Background

Gis (gas Insulated substation) is the english name of a gas Insulated substation. In gas-insulated substations, most of the electrical equipment is directly or indirectly sealed in a pipe tree consisting of metal pipes and bushings, and no switches, lines or terminals are visible from the outside. The interior of the pipeline tree is totally made of SF ₆ The gas is used as an insulating medium, and all high-voltage electrical components are sealed in the grounding metal cylinder. The high-voltage distribution device is formed by combining 7 high-voltage electric appliances including a circuit breaker, a bus, an isolating switch, a voltage transformer, a current transformer, a lightning arrester and a sleeve.

The lightning arrester is used as important protection equipment for limiting overvoltage of a transformer substation, a power transmission line and the like, and is usually arranged on an incoming line, an outgoing line and a bus loop of a power station switching station. At present, the GIS lightning arrester is widely applied to gas insulated metal enclosed switchgear. Because the GIS arrester can not carry out power frequency withstand voltage test, need pull down it, can carry out power frequency withstand voltage test to GIS, lead to can't carrying out withstand voltage test to the insulator that the GIS arrester was installed, become experimental blind spot. There is a need for an isolation operation mechanism of a GIS arrester for a withstand voltage test to realize that the GIS arrester need not to be dismantled to carry out withstand voltage test alone in the field GIS withstand voltage test, avoid experimental blind spot.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the experimental blind spot problem that can't carry out withstand voltage test of insulator among the present GIS withstand voltage test, provide one kind and can wholly carry out withstand voltage test's GIS arrester installation device after the arrester installation.

For solving the problem, the utility model discloses a technical scheme do, a can carry out withstand voltage test's GIS arrester installation device, which comprises a housin, basin formula insulator is installed at the top of casing, link up in the basin formula insulator and be provided with three static contact of going up, the casing is inside to be equipped with three lower static contact, lower static contact and last static contact one by one just are located the last static contact below certain distance department that corresponds, are equipped with the moving contact between lower static contact and the last static contact, and the moving contact can communicate lower static contact and last static contact, and the moving contact is connected with the mobile device. The lightning arrester installation device has the advantages that the internal circuit of the lightning arrester installation device is set to be in the form of the opening and closing contact, the moving contact is moved through the moving device after the lightning arrester is installed, the internal circuit is disconnected, the whole lightning arrester is subjected to a voltage withstand test together with the basin-type insulator, on one hand, a test blind spot is avoided, on the other hand, repeated disassembly and assembly of the lightning arrester are avoided, and the installation efficiency is improved.

Preferably, the upper static contact and the lower static contact are uniformly arranged in a circular shape, the moving device comprises a rotating shaft, the rotating shaft is vertically arranged at the center of the circular circle, a transverse connecting piece is arranged at the upper end of the rotating shaft, the moving contact is arranged on the transverse connecting piece and uniformly arranged along the circumferential direction of the rotating shaft, and a rotation driving assembly is arranged at the lower end of the rotating shaft. The wiring form of the lightning arrester is ingeniously utilized, the rotating shaft is located between the contacts, the rotating form is adopted, the three moving contacts move for the same distance, the on-off of the multi-phase contacts is controlled, and the structure is simple and ingenious.

Preferably, the transverse connecting member is made of insulating materials, a mounting hole is formed in the position, corresponding to the moving contact, of the transverse connecting member, and the moving contact is mounted in the mounting hole. Make movable contact and mobile device insulation isolation, protection mobile device improves the security performance.

Preferably, the rotation driving assembly comprises a motor, the motor drives a rotating shaft to rotate, an output shaft of the motor is perpendicular to the rotating shaft, and a transmission mechanism is arranged between the output shaft of the motor and the rotating shaft. The motor is transversely arranged, and the height is saved.

Preferably, the rotation driving assembly is detachably arranged on the outer bottom surface of the shell, a through hole is formed in the center of the bottom surface of the shell, a first transmission shaft is installed in the through hole, the top end of the first transmission shaft is fixedly connected with the rotating shaft, the motor is connected with a second transmission shaft through a transmission mechanism, and the second transmission shaft is detachably connected with the lower end of the first transmission shaft. Simplify mounting structure, make casing and contact structure be an independent installation device, can install alone, rotate drive assembly simultaneously and can detect a plurality of this independent module connection respectively, simplify the installation device structure, practiced thrift manufacturing cost greatly.

Preferably, the rotating shaft is made of an insulating material. The first transmission shaft exposed outside can not be electrified, so that the insulating property is further improved, and the safety is improved.

Preferably, an insulation fixing plate is arranged in the shell along the radial direction of the shell, one end of the insulation fixing plate is fixedly connected with the inner wall of the shell, and the rotating shaft penetrates through the other end of the insulation fixing plate and is rotatably connected with the insulation fixing plate. The auxiliary support is provided for the rotating shaft with larger length, the movement accuracy is ensured, and the electric conduction performance is good after the test is finished.

According to the technical scheme, the novel GIS arrester mounting device has the advantages that the novel GIS arrester mounting device is designed, the internal multi-phase conductive structure can be disconnected, the arrester can be disconnected and isolated after being mounted on the GIS arrester, the arrester and the basin-type insulator are integrally subjected to a voltage withstand test, and test blind spots in a conventional voltage withstand test are avoided; the multi-phase contacts are arranged in a circular shape, and a plurality of moving contacts can be driven to act simultaneously through a rotating shaft positioned in the center of a circle, so that the structure is ingenious, and the on-off control is smooth; the separated rotary driving assembly is adopted, the structure of the installation device body is greatly simplified, and meanwhile, a plurality of installation structures can be tested through one rotary driving assembly, so that the production and use cost is greatly reduced; the whole insulation performance is good, and the security is high.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is an enlarged view at B in fig. 1.

In the figure: 1. the device comprises a shell, 2, a basin-type insulator, 3, an upper static contact, 4, a movable contact, 5, a driving shaft, 6, a lower static contact, 7, an insulating fixing plate, 8, a rotating shaft, 9, a bearing, 10, a first transmission shaft, 11, a second transmission shaft, 12, a motor and 13, and a transverse connecting piece.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.

As shown in fig. 1-3, a GIS arrester installation apparatus capable of performing a withstand voltage test includes a housing 1, a basin-type insulator 2 is installed on the top of the housing 1, a number of upper static contacts 3 are disposed through the basin-type insulator 2, the number of the upper static contacts 3 corresponds to the number of the arrester, generally three, the arrester is installed above the basin-type insulator 2 and connected to the upper static contacts 3, lower static contacts 6 equal to the number of the upper static contacts 3 are disposed inside the housing 1, the lower static contacts 6 are directly opposite to the upper static contacts 3 one by one and located at a certain distance below the corresponding upper static contacts 3, the upper static contacts 3 and the lower static contacts 6 are uniformly arranged in a circular shape (the angle interval between two adjacent upper static contacts in the embodiment around the circle center of the circular shape is 120 °), a moving device is disposed at the center of the circular shape, the moving device includes a rotating shaft 8 vertically disposed at the center of the circle, the upper end of the rotating shaft 8 is provided with a transverse connecting piece 13, the transverse connecting piece 13 is provided with moving contacts 4 with the same number as that of the upper static contacts, the moving contacts 4 are uniformly arranged in the same circle, the horizontal position is positioned between the lower static contact 6 and the upper static contact 3, the transverse connecting piece can adopt a star-shaped connecting rod or disc form, a mounting hole is formed in the position, corresponding to the moving contacts 4, of the transverse connecting piece 13, the moving contacts 4 are mounted in the mounting hole, specifically, when the transverse connecting piece is a star-shaped connecting rod, the rotating shaft is connected with the central point of the star-shaped connecting rod, and the moving contacts are arranged at one end, far away from the rotating shaft, of each rod body; when the transverse connecting piece is a disc, the rotating shaft is connected with the center of the disc, and the moving contacts are uniformly arranged along the circumferential direction of the disc;

an insulation fixing plate 7 is arranged in the shell 1 along the radial direction, one end of the insulation fixing plate 7 is fixedly connected with the inner wall of the shell 1, and a rotating shaft 8 penetrates through the other end of the insulation fixing plate 7 and is rotatably connected with the insulation fixing plate 7;

a rotation driving assembly is detachably arranged on the bottom surface of the outer portion of the shell 1, a through hole is formed in the center of the bottom surface of the shell 1, a first transmission shaft 10 is installed in the through hole, two bearings 9 are arranged between the first transmission shaft 10 and the inner wall of the through hole, and the two bearings 9 are respectively located at the upper end and the lower end of the first transmission shaft 10; top and the 8 fixed connection of pivot of first transmission shaft 10 rotate the drive assembly and include motor 12, and motor 12 is connected with second transmission shaft 11 through drive mechanism, and second transmission shaft 11 can be dismantled with the lower extreme of first transmission shaft 10 and be connected, and the output shaft of motor 12 is perpendicular with pivot 8 to practice thrift whole high space, drive mechanism realizes the power transmission between two mutually perpendicular's the axle, for example, drive mechanism can adopt following form: an output shaft of the motor 12 is coaxially and fixedly connected with the driving shaft 5, the driving shaft 5 adopts a screw rod form, and teeth meshed with the driving shaft in a threaded manner are arranged on the periphery of the second transmission shaft 11 to realize vertical transmission of power; or a form of bevel gear may be provided on the second transmission shaft 11 and the drive shaft 5, respectively; or the second transmission shaft 11 and the driving shaft 5 are connected by adopting a universal joint;

in order to ensure the insulation performance after the rotary driving device is disassembled, the rotating shaft 8 is made of an insulation material.

The use method of the utility model comprises the steps of installing the lightning arrester on the top of the basin-shaped insulator, connecting the phase line of the lightning arrester with the corresponding upper static contact, installing the rotary driving assembly when performing the withstand voltage test, rotating the rotary shaft 8 together with the transverse connecting piece through the motor drive, rotating the movable contact, leaving the position between the upper static contact and the lower static contact, disconnecting the upper static contact and the lower static contact, and then performing the withstand voltage test on the whole lightning arrester and the basin-shaped insulator;

after the test is finished, the motor rotates reversely, the movable contact returns to the original position, the upper end of the movable contact is clamped with the upper static contact, the lower end of the movable contact is clamped with the lower static contact, the upper static contact and the lower static contact are connected, the lightning arrester is communicated with the lightning protection loop, then the rotary driving assembly can be detached, and other installation devices can be tested.

The novel GIS arrester installation device has the advantages that the novel GIS arrester installation device is designed, the internal multi-phase conductive structure can be disconnected, the arrester can be disconnected and isolated after being installed on the novel GIS arrester installation device, the arrester and the basin-type insulator are integrally subjected to a voltage withstand test, and test blind spots in a conventional voltage withstand test are avoided; the multi-phase contacts are arranged in a circular shape, and a plurality of moving contacts can be driven to act simultaneously through a rotating shaft positioned in the center of a circle, so that the structure is ingenious, and the on-off control is smooth; the separated rotary driving assembly is adopted, the structure of the installation device body is greatly simplified, and meanwhile, a plurality of installation structures can be tested through one rotary driving assembly, so that the production and use cost is greatly reduced; the whole insulation performance is good, and the security is high.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The GIS lightning arrester installation device capable of performing the withstand voltage test comprises a shell (1), wherein a basin-shaped insulator (2) is installed at the top of the shell (1), and is characterized in that three upper static contacts (3) are arranged in the basin-shaped insulator (2) in a through mode, three lower static contacts (6) are arranged inside the shell (1), the lower static contacts (6) and the upper static contacts (3) are opposite one to one and located at a certain distance below the corresponding upper static contacts (3), a moving contact (4) is arranged between the lower static contacts (6) and the upper static contacts (3), the moving contact (4) can be communicated with the upper static contacts (3) and the lower static contacts (6), and the moving contact (4) is connected with a moving device.

2. The GIS arrester installing device capable of performing the withstand voltage test according to claim 1, wherein the upper static contacts (3) and the lower static contacts (6) are uniformly arranged in a circle, the moving device comprises a rotating shaft (8), the rotating shaft (8) is vertically arranged at the center of the circle, a transverse connecting piece (13) is arranged at the upper end of the rotating shaft (8), the moving contacts (4) are installed on the transverse connecting piece (13) and uniformly arranged along the circumferential direction of the rotating shaft (8), and a rotation driving component is installed at the lower end of the rotating shaft (8).

3. The GIS arrester installing device capable of performing the withstand voltage test according to claim 2, wherein the transverse connecting member (13) is made of an insulating material, a mounting hole is formed in a position of the transverse connecting member (13) corresponding to the movable contact (4), and the movable contact (4) is installed in the mounting hole.

4. The GIS arrester installing device capable of conducting withstand voltage test according to claim 2, wherein the rotation driving component comprises a motor (12), the motor (12) drives the rotating shaft (8) to rotate, an output shaft of the motor (12) is perpendicular to the rotating shaft (8), and a transmission mechanism is arranged between the output shaft of the motor (12) and the rotating shaft (8).

5. The GIS arrester installing device capable of conducting the withstand voltage test according to claim 4, wherein the rotary driving assembly is detachably arranged on the outer bottom surface of the casing (1), a through hole is formed in the center of the bottom surface of the casing (1), a first transmission shaft (10) is installed in the through hole, the top end of the first transmission shaft (10) is fixedly connected with the rotating shaft (8), the motor (12) is connected with a second transmission shaft (11) through the transmission mechanism, and the second transmission shaft (11) is detachably connected with the lower end of the first transmission shaft (10).

6. The GIS lightning arrester installing device capable of performing the withstand voltage test according to any one of claims 2 to 5, wherein the rotating shaft (8) is made of an insulating material.

7. The GIS lightning arrester installing device capable of conducting voltage withstand test according to any one of claims 2 to 5, characterized in that an insulating fixing plate (7) is arranged in the housing (1) along the radial direction of the housing, one end of the insulating fixing plate (7) is fixedly connected with the inner wall of the housing (1), and the rotating shaft (8) penetrates through the other end of the insulating fixing plate (7) and is rotatably connected with the insulating fixing plate (7).