CN211237858U - Internal disconnecting device of three-phase common-tank type lightning arrester for GIS - Google Patents
Internal disconnecting device of three-phase common-tank type lightning arrester for GIS Download PDFInfo
- Publication number
- CN211237858U CN211237858U CN201922140064.2U CN201922140064U CN211237858U CN 211237858 U CN211237858 U CN 211237858U CN 201922140064 U CN201922140064 U CN 201922140064U CN 211237858 U CN211237858 U CN 211237858U
- Authority
- CN
- China
- Prior art keywords
- conducting rod
- gear
- arrester
- gis
- lower conducting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Gas-Insulated Switchgears (AREA)
- Thermistors And Varistors (AREA)
Abstract
The utility model discloses a GIS is with inside disconnecting means of three-phase pot-like arrester altogether, through three insulator spindle drive insulating poles of rotation center to make the conducting rod on the every insulator spindle roll along the rack track simultaneously, utilize the cooperation of wheel and rack, rotate the conducting rod from vertical state to the horizontality, obtain a disconnection clearance inside the arrester, separate the resistance card core and high-pressure side. The utility model discloses a gear seat restricts the rotation track of gear, ensures to rotate the correct position. The insulation and voltage resistance test is carried out after the lightning arrester with the disconnecting device of the utility model is installed on the GIS combined electrical appliance, thereby avoiding the steps of opening the air chamber respectively before and after the test to disassemble and install the connecting guide rod and to seal, vacuumize and inflate, reducing the test period and controlling the cleanliness inside the air chamber; and the increase of an isolation knife in an adjacent air chamber of the lightning arrester is avoided, and the cost is saved.
Description
Technical Field
The utility model relates to a GIS is with inside disconnecting means of three-phase pot-type arrester altogether belongs to the arrester field.
Background
Because the arrester has nonlinear characteristics, the complete arrester cannot be directly subjected to an insulation and voltage withstand test, and in order to complete an important insulation and voltage withstand test, most GIS combined electrical appliances (namely, gas-insulated fully-closed combined electrical appliances) can be additionally provided with an isolation knife in an adjacent gas chamber of the arrester, and the isolation knife has large volume and high cost; if the isolation knife is not added, in order to complete the test, only the adjacent air chambers of the lightning arrester can be opened, the connecting guide rod is removed, sealing, vacuumizing and inflating are carried out, then the test is carried out, the air chambers are opened after the withstand voltage is passed, the test period is very long, the air chambers are opened on site for multiple times, and the sealing surfaces and the butt-joint surfaces which are processed for multiple times are not controlled by the internal cleanliness.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: how to make the three-phase altogether can-type arrester do the insulating withstand voltage test when, do not open the adjacent air chamber of arrester and do not increase the problem of isolation sword.
In order to solve the technical problem, the technical scheme of the utility model is to provide an internal disconnecting device of a three-phase pot-sharing arrester for a GIS, which is characterized by comprising a basin-type insulator, wherein the basin-type insulator is arranged at the top of a pot body of the arrester, upper conducting rods are arranged on three-phase inserts of the basin-type insulator, the lower end of each upper conducting rod is respectively connected with the upper end of the corresponding lower conducting rod, the lower end of each lower conducting rod is in a gear shape, gear seats which are in one-to-one correspondence are arranged below each lower conducting rod, gear strips are embedded in the gear seats and are meshed with gears at the lower ends of the lower conducting rods, the center of a gear at the lower end of each lower conducting rod is respectively connected with one end of an insulating rod, the other ends of all the insulating rods are intensively connected on a central insulating shaft, the lower end of the central insulating shaft is connected with one end of a metal shaft at the bottom of the pot, the central hole is provided with a bearing and a sealing ring, the bottom plate is arranged at the bottom of the tank body, each gear seat is fixed at the upper end of one resistance chip column, and the lower ends of all the resistance chip columns are fixed on the bottom plate.
Preferably, the lower end of the upper conducting rod is of a groove type structure, and the upper end of the lower conducting rod is of an embedded structure; the lower end of the upper conducting rod is in close contact with the upper end of the lower conducting rod through the insert.
Preferably, all the insulating rods pass through the center of the gear at the lower end of the lower conducting rod and then meet the central insulating shaft.
Preferably, each lower end gear of the lower conducting rod can move along the respective gear strip, so that the lower conducting rod is switched between a vertical state and a horizontal state; the rotation angle of the lower conducting rod is 0-90 degrees.
The utility model discloses a rotation center insulating axle drives three insulator spindle rotations to make the conducting rod on the every insulator spindle roll along the rack track simultaneously, utilize the cooperation of gear and rack, rotate the conducting rod from vertical state to the horizontality, at the inside disconnection clearance that obtains of arrester, separate the resistance card core and high-pressure side. The utility model discloses a gear seat restricts the rotation track of gear, ensures to rotate the correct position.
The insulation and voltage resistance test is carried out after the lightning arrester with the disconnecting device of the utility model is installed on the GIS combined electrical appliance, thereby avoiding the steps of opening the air chamber respectively before and after the test to disassemble and install the connecting guide rod and to seal, vacuumize and inflate, reducing the test period and controlling the cleanliness inside the air chamber; and the increase of an isolation knife in an adjacent air chamber of the lightning arrester is avoided, and the cost is saved.
Drawings
Fig. 1 is a schematic structural view of an internal disconnecting device of a three-phase common-tank type arrester for a GIS;
fig. 2 is a partially enlarged schematic view of two ends of the lower conductive rod respectively connected to the upper conductive rod and the gear seat.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The utility model relates to an internal disconnecting device of a three-phase pot-sharing arrester for GIS, as shown in figure 1 and figure 2, the internal disconnecting device comprises a basin-type insulator 1, the basin-type insulator 1 is arranged on the top of a tank body 11 of the arrester, conducting rods 2 are arranged on three-phase inserts of the basin-type insulator 1, the lower ends of the upper conducting rods 2 connected with the basin-type insulator 1 are made into a groove type, the upper ends of lower conducting rods 3 are made into an insert type, the lower ends of the three upper conducting rods 2 are closely contacted with the upper ends of the three lower conducting rods 3 through inserts 4 in a connecting state, gear seats 6 are arranged on the upper ends of resistance plate columns 12, the lower ends of all resistance plate columns 12 are fixed on a bottom plate 10, gear strips 7 are embedded in the gear seats 6, the lower ends of the lower conducting rods 3 are all made into a gear shape, the lower ends of the lower conducting rods 3 are meshed with gear strips 7 in the gear seats 6, the centers of gears at the lower ends of the three, the one end of three insulator spindle 5 is connected respectively on three lower conducting rod 3, the other end all concentrates the connection on central insulating axle 8, three gears of three-phase converge in central insulating axle 8 after passing the center of gear by three insulator spindle 5 promptly, central insulating axle 8 extends to jar body 11 bottom, the metal axle 9 of the crimping of 8 lower extremes of central insulating axle is worn out from the centre bore of bottom plate 10, centre bore department increases bearing and sealing washer, the sealing washer makes the arrester effectively sealed, the bearing makes the metal axle 9 effectively in the same direction as smooth the rotation of going on, drive inside central insulating axle 8 simultaneously and rotate.
The three-phase gears are driven to move along the respective gear strips 7 through the rotating central insulating shaft 8, the purpose that the lower conducting rod 3 rotates by 90 degrees is achieved, the lower conducting rod 3 is switched from a vertical state to a horizontal state, and therefore a disconnection gap is formed between the upper conducting rod and the lower conducting rod.
The utility model discloses a gear engagement formula track can reduce intermetallic frictional resistance, drives the rotation of conducting rod to increase area of contact between the conductor. The utility model discloses a gear seat 6 is spacing to the rotation stroke of conducting rod 3 down, makes conducting rod 3's location down more accurate.
The utility model discloses a use as follows:
GIS combined electrical apparatus has installed and has had the utility model discloses behind disconnecting means's the arrester, in case will do insulating withstand voltage test, only need rotate the metal axle 9 that the arrester bottom stretches out with the handle under the uncharged condition, make the state that indicates the arrow point from "closing" rotate the state of "branch", vertical contact state will be followed to conducting rod 3 under inside and 90 horizontality are rotated to, produce the disconnection clearance in the middle of last conducting rod 2 and lower guide arm 3, separate resistance card post 12 and high-voltage terminal resistance, will not cause the damage to the arrester to the combination electrical apparatus high-voltage terminal step-up again.
Claims (4)
1. The internal disconnecting device of the three-phase pot-shared arrester for the GIS is characterized by comprising a basin-type insulator (1), wherein the basin-type insulator (1) is arranged at the top of a tank body (11) of the arrester, upper conducting rods (2) are arranged on three-phase inserts of the basin-type insulator (1), the lower end of each upper conducting rod (2) is connected with the upper end of a corresponding lower conducting rod (3) respectively, the lower end of each lower conducting rod (3) is in a gear shape, gear seats (6) which correspond to one another one by one are arranged below each lower conducting rod (3), gear strips (7) are embedded in the gear seats (6), the gear strips (7) are meshed with gears at the lower ends of the lower conducting rods (3), the center of a gear at the lower end of each lower conducting rod (3) is connected with one end of an insulating rod (5) respectively, and the other ends of all the insulating rods (5) are connected on a central insulating shaft (8) in a concentrated, the lower extreme of central insulating axle (8) is connected with the one end of the metal axle (9) of jar body (11) bottom, and the other end of metal axle (9) is worn out from the centre bore of bottom plate (10), and centre bore department is equipped with bearing and sealing washer, and the bottom of jar body (11) is located in bottom plate (10), and every gear seat (6) are fixed in the upper end of a resistance card post (12), and the lower extreme of all resistance card posts (12) is all fixed on bottom plate (10).
2. The internal disconnecting device of the three-phase pot-shared arrester for the GIS according to claim 1, wherein the lower end of the upper conducting rod (2) is of a groove structure, and the upper end of the lower conducting rod (3) is of an embedded structure; the lower end of the upper conducting rod (2) is in close contact with the upper end of the lower conducting rod (3) through an insert (4).
3. The internal disconnection device of a three-phase pot-shared arrestor for GIS according to claim 1, wherein all the insulating rods (5) pass through the center of the lower gear of the lower conducting rod (3) and then meet the central insulating shaft (8).
4. The internal disconnecting device of a three-phase common-tank type arrester for GIS according to claim 1, wherein the lower end gear of each lower conducting rod (3) is movable along the respective gear rack (7) to switch the lower conducting rod (3) between a vertical state and a horizontal state; the rotation angle of the lower conducting rod (3) is 0-90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922140064.2U CN211237858U (en) | 2019-12-02 | 2019-12-02 | Internal disconnecting device of three-phase common-tank type lightning arrester for GIS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922140064.2U CN211237858U (en) | 2019-12-02 | 2019-12-02 | Internal disconnecting device of three-phase common-tank type lightning arrester for GIS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211237858U true CN211237858U (en) | 2020-08-11 |
Family
ID=71919242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922140064.2U Active CN211237858U (en) | 2019-12-02 | 2019-12-02 | Internal disconnecting device of three-phase common-tank type lightning arrester for GIS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211237858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202100A (en) * | 2020-10-19 | 2021-01-08 | 国网山东省电力公司潍坊供电公司 | Gas-insulated metal-enclosed switchgear and operation method |
-
2019
- 2019-12-02 CN CN201922140064.2U patent/CN211237858U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202100A (en) * | 2020-10-19 | 2021-01-08 | 国网山东省电力公司潍坊供电公司 | Gas-insulated metal-enclosed switchgear and operation method |
| CN112202100B (en) * | 2020-10-19 | 2022-11-25 | 国网山东省电力公司潍坊供电公司 | Gas-insulated metal-enclosed switchgear and operation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203178414U (en) | Auxiliary apparatus used for voltage withstanding test | |
| CN201541119U (en) | Transformer neutral point gap earth protective device | |
| CN211237858U (en) | Internal disconnecting device of three-phase common-tank type lightning arrester for GIS | |
| CN203275465U (en) | Insulator spindle overpressure resistant test support | |
| CN205863077U (en) | A kind of tri-station isolating switch | |
| CN205194604U (en) | Circuit breaker and fishing box thereof | |
| CN204760305U (en) | Pot -type is transmission structure for high voltage circuit breaker | |
| CN201387836Y (en) | Three-column flip horizontal outdoor three-phase high-voltage AC isolating switch | |
| CN201576606U (en) | Rotary isolation/ground switch | |
| CN203573891U (en) | Indoor high-voltage direct-operated isolating and grounding switch | |
| CN206003689U (en) | Side-mounted high-pressure vacuum breaker | |
| CN205508670U (en) | Intelligent combination electric isolation and ground connection interconnection device on post convenient to use | |
| CN208094066U (en) | Gas-filling cabinet three-station and gas-filling cabinet | |
| CN201163588Y (en) | Three-column horizontal rotation type isolation switch | |
| CN206211385U (en) | EMUs outdoor disconnector and disconnecting switch attachment structure | |
| CN203377133U (en) | Switch cabinet switch | |
| CN204067177U (en) | A kind of high-pressure vacuum switch pole of tape cable connecting sleeve | |
| CN207441548U (en) | It can phase changing type three-phase knife-like switch | |
| CN202275677U (en) | Safety lightning arrester | |
| CN206697408U (en) | Isolator operating mechanism is anti-to cross flushing device and disconnecting switch | |
| CN208903911U (en) | A kind of double-column rotary disconnecting switch | |
| CN205646442U (en) | Lightning rod with rotation regulation function | |
| CN203746733U (en) | Improved GW4-10 isolating switch | |
| CN108390303A (en) | A kind of gas-filling cabinet three-station and gas-filling cabinet | |
| CN221487343U (en) | Manual operation isolation fracture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |