CN221078875U - Device for operation test of isolating switch - Google Patents
Device for operation test of isolating switch Download PDFInfo
- Publication number
- CN221078875U CN221078875U CN202322755229.3U CN202322755229U CN221078875U CN 221078875 U CN221078875 U CN 221078875U CN 202322755229 U CN202322755229 U CN 202322755229U CN 221078875 U CN221078875 U CN 221078875U
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- cover plate
- wire holder
- hole
- insulator
- isolating switch
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- 238000007789 sealing Methods 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- 239000012212 insulator Substances 0.000 claims description 46
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 10
- 239000004020 conductor Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 229910018503 SF6 Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 3
- 229960000909 sulfur hexafluoride Drugs 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Abstract
The utility model relates to the field of detection of isolating switch tests, in particular to a device for an operating test of an isolating switch. A device for isolator operation test is provided with the wire holder on the apron, and the wire holder is insulating wire holder, and the integrative embedding of wire holder is fixed with at least three fixed electrically conductive piece, is provided with the through-hole on the apron, and wire holder sealing installation is in through-hole department, perhaps apron and wire holder integrated into one piece. Through setting up terminal seat and fixed electrically conductive spare, be convenient for carry out electrically conductive butt joint, because fixed electrically conductive spare and terminal seat are integrative to be set up, therefore sealing performance is better between fixed electrically conductive spare and the terminal seat, be difficult for taking place to leak, be provided with the through-hole on the apron, the terminal seat is sealed to be set up and is convenient for seal or apron and the integrative setting of terminal seat on the through-hole, and then solved among the prior art to isolator's detection need wear to establish the metal guide arm on the apron and accomplish sealedly, cause sealing position many, the great problem of risk of sealed inefficacy.
Description
Technical Field
The utility model relates to the field of detection of isolating switch tests, in particular to a device for an operating test of an isolating switch.
Background
In the production and manufacture of the isolating switch, the qualification of the final product needs to be ensured, and the isolating switch can be normally used, so that after the manufacturing of the isolating switch is completed, the isolating switch needs to be checked in time to detect whether the isolating switch can be stably opened and closed or not and the response time of the switch.
As shown in fig. 1, the structure of the isolating switch is schematically shown, wherein the isolating switch comprises a shell 11, a female conductor 12 arranged in the shell 11, and a movable conductive rod 13 movably arranged on the female conductor 12, a grounding switch fixed contact 15 and an isolating switch fixed contact 14 are also arranged on the shell 11, and the isolating switch fixed contact 14 is arranged on the main conductor. The movable conducting rod 13 can move so that two ends of the movable conducting rod 13 are respectively contacted with the grounding switch fixed contact 15 and the isolating switch fixed contact 14, wherein one end of the movable conducting rod 13, which is used for being contacted with the isolating switch fixed contact 14, forms an isolating switch movable contact, and the other end of the movable conducting rod forms a grounding switch movable contact. Other electrical devices, such as current transformers or lightning arresters, are typically also connected to the main electrical conductor.
However, when detecting, the real environment, that is, the sulfur hexafluoride gas needs to be filled into the isolating switch to form a sealed environment, and if the GIS equipment comprises a plurality of parts, the parts are positioned in the middle of the GIS equipment, so that the whole GIS equipment is communicated without being inflated for many times, and the middle electric equipment is provided with vent holes, such as a GIS and an insulator thereof disclosed in application publication number CN 113130150A. After the insulator is used, the single isolating switch forms a part of the GIS integral air chamber and can be normally used, but when the isolating switch needs to be tested independently, the single isolating switch cannot be sealed, and the test cannot be directly carried out.
To this problem, the apron is sealed in the outside of insulator at present to use, is provided with the through-hole that corresponds metal insert on the insulator on the apron, wears to establish the metal guide arm in the through-hole, connects the metal guide arm on the metal insert on the insulator, simultaneously in order to guarantee the seal, also can accomplish sealedly between the through-hole of metal guide arm and apron.
According to the technical scheme, the detection of the isolating switch is required to be respectively provided with the cover plate, the metal guide rods are connected, the sealing between the three metal guide rods and the cover plate is completed, the sealing positions are more, and the risk of sealing failure is high.
Disclosure of utility model
The utility model aims to provide a device for an operation test of an isolating switch, which is used for solving the problems that in the prior art, a metal guide rod is required to be arranged on a cover plate in a penetrating way and sealing is completed in detection of the isolating switch, so that the sealing positions are more and the risk of sealing failure is higher.
In order to achieve the above object, the device for operation test of the isolating switch in the utility model adopts the following technical scheme:
The device for the operation test of the isolating switch comprises a cover plate which is used for being connected to an insulator, wherein a wire holder is arranged on the cover plate, the wire holder is an insulating wire holder, at least three fixed conductive pieces are integrally embedded and fixed in the wire holder, and the fixed conductive pieces penetrate through the wire holder and form wiring terminals on two sides of the wire holder respectively; the cover plate is provided with a through hole, and the wiring seat is arranged at the through hole in a sealing way, or the cover plate and the wiring seat are integrally formed.
The beneficial effects of the technical scheme are that: the utility model improves the prior device for the operation test of the isolating switch, and is convenient for conducting butt joint by arranging the wire holder and the fixed conductive piece integrally embedded and fixed on the wire holder, and the sealing performance between the fixed conductive piece and the wire holder is better and leakage is not easy to occur because the fixed conductive piece and the wire holder are integrally arranged, and only the sealing between the cover plate and the wire holder is needed to be considered at the moment; because the fixed conductive pieces are arranged at least two, the connection of a plurality of different metal inserts is facilitated, the number of wire holders is reduced, and the sealing positions are reduced; be provided with the through-hole on the apron, the sealed setting of wire holder is convenient for seal or apron and the integrative setting of wire holder on the through-hole, does not have the clearance between wire holder and the apron this moment, is difficult for appearing leaking gas, and then has solved among the prior art to isolator's detection need wear to establish the metal guide arm on the apron and accomplish sealedly, causes sealed position many, the great problem of risk of sealed inefficacy.
Further, at least one end of the wire holder in the axial direction is convexly provided with at least two stages of round platform ladder structures with different heights, and the fixed conductive parts are arranged on each stage of round platform ladder structures.
The beneficial effects of the technical scheme are that: the ends of different fixed conductive pieces are convenient to stagger, and short circuit is avoided in the wiring process.
Further, at least two fixed conductive pieces are arranged on the stepped structures of the round tables at all levels.
The beneficial effects of the technical scheme are that: the number of fixed conductive pieces is convenient to increase, and connection of a plurality of metal inserts is convenient to carry out.
Further, the connection seat comprises a connection seat body covering the through hole and a connection edge arranged on the periphery of the connection seat body, the connection edge is fixedly connected with the side face of the cover plate in a sealing mode, the two axial ends of the connection seat body are provided with the round table step structures, and the round table step structures at one end extend into the through hole.
The beneficial effects of the technical scheme are that: the contact area between the wiring seat and the cover plate is conveniently increased through the arrangement of the connecting edge, and meanwhile the through hole is conveniently plugged.
Further, the cover plate comprises a cover plate body and an avoidance plate, wherein the cover plate body is used for connecting the insulator, and the avoidance plate is provided with an avoidance groove used for avoiding the insulator so as to avoid the collision of the round platform ladder structure to the insulator.
The beneficial effects of the technical scheme are that: the problem that the wire holder and the insulator interfere to cause incapable installation is avoided.
Further, the wire holder is arranged in a split mode with the cover plate, the wire holder comprises a wire holder body covering the through hole and a connecting edge arranged on the periphery of the wire holder body, and the connecting edge is fixedly connected with the side face of the cover plate in a sealing mode.
The beneficial effects of the technical scheme are that: the contact area between the wiring seat and the cover plate is conveniently increased through the arrangement of the connecting edge, and meanwhile the through hole is conveniently plugged.
Further, the connecting edge is fixed on the cover plate through a bolt, a sealing ring is arranged between the connecting edge and the side face of the cover plate, a threaded hole matched with the bolt is formed in the cover plate, the threaded hole is a blind hole, and a through hole for the bolt to pass through is formed in the connecting edge.
The beneficial effects of the technical scheme are that: through the bolt assembly, simple structure is convenient for connect fixedly, and the bolt can play the effect of compressing tightly to the sealing washer, is favorable to improving sealed effect.
Further, the cover plate comprises a cover plate body and an avoidance plate, wherein the cover plate body is used for connecting the insulator, and the avoidance plate is provided with an avoidance groove used for avoiding the insulator so as to avoid the wire holder from abutting the insulator.
The beneficial effects of the technical scheme are that: the insulator and the wire holder are prevented from interfering to prevent the insulator and the wire holder from being incapable of being installed.
Further, the cover plate is a metal cover plate.
The beneficial effects of the technical scheme are that: the strength of the cover plate is convenient to increase, and the sulfur hexafluoride gas has certain pressure in the process of sealing the insulator, so that the use of the metal cover plate is convenient to improve the whole bearing capacity of the cover plate.
Further, the device for the operation test of the isolating switch further comprises a flexible conductive piece connected between the wiring end and the metal insert of the insulator, wherein connecting rings are respectively arranged at two ends of the flexible conductive piece, the wiring end is provided with a threaded connecting hole, and the connecting rings are connected to the wiring end of the metal insert of the insulator or the fixed conductive piece through bolts.
The beneficial effects of the technical scheme are that: the flexible conductive piece is convenient to install through the arrangement of the flexible conductive piece, the structure is simple through the assembly mode of the connecting ring and the bolt, and the connection between the flexible conductive piece and the insulator can be completed through the cooperation of the connecting ring and the bolt.
Drawings
FIG. 1 is a schematic diagram of a prior art isolating switch;
Fig. 2 is a cross-sectional view of an apparatus for operation test of a disconnector in accordance with the present utility model.
In the figure: 11. a housing; 12. a parent conductor; 13. a movable conductive rod; 14. a static contact of the isolating switch; 15. a grounding switch static contact; 21. a cover plate body; 22. an avoidance plate; 31. a wire holder; 32. fixing the conductive member; 33. a conductive bolt; 34. a flexible conductive member; 35. a connecting ring; 36. a fastening bolt; 37. and (3) sealing rings.
Detailed Description
The features and capabilities of the present utility model are described in further detail below in connection with the examples.
In example 1 of the apparatus for the operation test of the disconnecting switch in the present utility model:
In the device for the operation test of the disconnecting switch (hereinafter referred to as the operation test device) in this embodiment, the cover plate is provided with a single through hole for plugging the outside of the insulator, the wire holder is arranged at the through hole in a sealing manner, the wire holder is connected with the cover plate in a sealing manner, a plurality of fixed conductive pieces are arranged on the wire holder, the metal inserts on the insulator are connected through the fixed conductive pieces, and then the metal inserts of the insulator are electrically connected.
As shown in fig. 2, the operation test device in this embodiment includes a cover plate and a wire holder 31, a fixed conductive member 32 is integrally embedded and fixed on the wire holder 31, and both ends of the fixed conductive member 32 respectively pass through the wire holder 31 and form a terminal. Specifically, the wire holder 31 is an insulating wire holder to realize insulation between the fixed conductive member 32 and the cover plate. The cover plate and the wiring seat 31 are arranged in a split mode, through holes are formed in the cover plate, the wiring seat 31 is fixedly arranged at the through holes of the cover plate through threaded fasteners and covers the through holes in the cover plate in a shielding mode, and sealing is achieved conveniently. Because the apron sets up in the outside of insulator, dodges the insulator for the convenience, consequently including being annular apron body 21 and the fixed board 22 of dodging that sets up on apron body 21 at the apron, dodging and being provided with on the board 22 and being used for dodging insulator and wire holder 31 dodges the recess, dodging board 22 and apron body 21 welded fastening, apron body 21 and insulator directly carry out fixed connection. The cover plate body 21 is provided with a bolt mounting hole for connecting an insulator.
In order to facilitate the installation of the wire holder 31 on the cover plate, specifically, screw holes are arranged around the through holes of the cover plate body 21, bolt through holes are arranged on the wire holder 31, the wire holder 31 can be fixed on the cover plate body 21 through the cooperation of the fastening bolts 36 and the screw holes, and the wire holder 31 is made of insulating materials, so that gaskets are further arranged on the end faces of the fastening bolts 36, which are positioned on the wire holder 31, so that stress concentration is avoided. Meanwhile, in order to realize sealing, the wire holder 31 comprises a wire holder body and a connecting edge for connecting to the cover plate, and a sealing ring 37 is arranged on the contact surface of the connecting edge and the cover plate. The connecting edge is in surface contact with the side surface of the cover plate, so that the contact area between the connecting edge and the side surface of the cover plate is increased, and the sealing ring 37 is convenient to set. Since the high-pressure sulfur hexafluoride gas is required to be filled into the isolating switch in the test process, a certain pressure is born at the cover plate, the wire holder 31 is insulated to form insulation between the fixed conductor and the cover plate, the cover plate body 21 can be a metal cover plate, and the cover plate body 21 is an aluminum cover plate body 21 in the embodiment, so that a larger pressure can be born.
In order to simplify the operation steps and the sealing difficulty, the wire holder 31 is provided with only one, at least three fixed conductive pieces 32 are arranged on the wire holder 31, and each fixed conductive piece 32 can be connected with one phase of the three-phase isolating switch. The wire holder 31 is provided with only one wire holder, so that the operation can be simplified when the wire holder 31 is fixedly connected to the cover plate body 21, and only one installation is needed. The fixed conductive members 32 in this embodiment are provided in nine, three groups each including three fixed conductive members 32, that is, three fixed conductive members 32 are arranged in three circles around the axis of the wire holder 31, respectively. Because be provided with a plurality of fixed electrically conductive pieces 32 on same wire holder 31, consequently need avoid taking place to interfere between the fixed electrically conductive piece 32 of difference in the in-process of using, the axis tip of wire holder 31 body still is provided with round platform ladder structure in this embodiment, and round platform ladder structure is provided with the three-layer, and the fixed electrically conductive piece 32 of different group sets up on the round platform ladder structure of difference in height. The fixed conductive pieces 32 are provided with a plurality of groups, each group of fixed conductive pieces 32 is arranged in a circumferential array around the axis of the wire holder 31 body, and the distances between the different groups and the axis of the wire holder 31 body are different. That is, the heights of the ends of each group of fixed conductive pieces 32 are different, so that different terminals are arranged in a staggered manner, and short circuit is not easy to occur. It is worth noting that the round bench step structure is located at the end, and meanwhile the round bench step structure also stretches into the through hole of the cover plate to extend towards the insulator, so that the avoidance groove is formed in the round bench step structure, and the round bench step structure is prevented from being abutted to the avoidance groove of the insulator.
The operation test device further comprises a flexible conductive piece 34, the flexible conductive piece 34 and the fixed conductive piece 32 are arranged in a split mode, threaded holes are formed in two ends of the fixed conductive piece 32 respectively, the flexible conductive piece 34 is a wire, connecting rings 35 convenient to connect are formed in two ends of the wire respectively, the wire and the connecting rings 35 are in crimping and forming in the embodiment, one connecting ring 35 is mounted on the fixed conductive piece 32 through a conductive bolt 33, conductive connection between the fixed conductive piece 32 and the flexible conductive piece 34 is achieved, and the connecting rings 35 simultaneously form a quick connection structure.
When the isolating switch needs to be tested, the flexible conducting pieces 34 are connected to the fixed conducting pieces 32 first, then the other ends of the flexible conducting pieces 34 are connected to the metal inserts of the insulators, and the number of the flexible conducting pieces 34 is selected according to the requirements and is in butt joint with the metal inserts of the insulators. And then the cover plate is arranged outside the insulator through the fastening bolt 36, the insulator is sealed, and finally the electric signal on the wire holder 31 is detected. It is worth noting that the operation experiment device can not only carry out sealing detection on the insulator with the through hole, but also detect the insulator without the through hole.
In example 2 of the apparatus for the operation test of the disconnecting switch in the present utility model: for the arrangement of the flexible conductive member, this embodiment proposes a new arrangement form, unlike embodiment 1, in which the end of the flexible connector is a bolt connected to a wire, and the bolt completes the electrical conduction in synchronization with the metal insert of the insulator.
In example 3 of the apparatus for disconnecting switch operation test in the present utility model: in view of the arrangement of the device for the operation test of the disconnecting switch, this embodiment proposes a new arrangement form, unlike embodiment 1, in which the flexible conductive member is not configured any more, and is configured by the user when the detection is required. Of course, in other embodiments the flexible conductive member may be welded to the fixed conductive member.
In example 4 of the apparatus for disconnecting switch operation test in the present utility model: in respect of the arrangement of the cover plate, this embodiment proposes a new arrangement, which is different from embodiment 1 in that the cover plate is an iron cover plate. Of course, in other embodiments, the cover plate may be made of an insulating material.
In example 5 of the apparatus for disconnecting switch operation test in the present utility model: in view of the arrangement of the cover plate, this embodiment proposes a new arrangement form, unlike embodiment 1 in which the cover plate is integrally formed. Of course, in other embodiments, the cover plate may not be provided with a recess, so as to shorten the length of the wire holder to avoid contact interference between the wire holder and the insulator.
In example 6 of the apparatus for disconnecting switch operation test in the present utility model: in view of the arrangement of the cover plate, this embodiment proposes a new arrangement form, unlike embodiment 1, in this embodiment, the cover plate is no longer provided with a threaded hole, and the wire holder is adhesively connected with the cover plate.
In example 7 of the apparatus for disconnecting switch operation test in the present utility model: in view of the arrangement of the wire holder, this embodiment proposes a new arrangement form, unlike embodiment 1, in which the wire holder is no longer provided with a connecting edge, and the wire holder is disposed in the through hole of the cover plate and is in sealing contact with the wall of the through hole.
In example 8 of the apparatus for disconnecting switch operation test in the present utility model: aiming at the arrangement of the wire holder, the embodiment provides a new arrangement form, and the difference from embodiment 1 is that in the embodiment, two ends of the wire holder body are not cambered surfaces, but are flush planes, different fixed conductive pieces have the same length, and the heights of the end parts are also the same. Of course, the cover plate can also be provided with a recess for avoiding.
In example 9 of the apparatus for disconnecting switch operation test in the present utility model: for the arrangement of the wire holder, this embodiment proposes a new arrangement form, unlike embodiment 1, in this embodiment, two fixed conductive members are disposed on each stage of the stepped structure of the round table on the wire holder, and of course, four or other numbers not less than two may be disposed in other embodiments.
In example 10 of the apparatus for disconnecting switch operation test in the present utility model: for the arrangement of the stepped structure of the round table, this embodiment proposes a new arrangement form, unlike embodiment 1, in this embodiment, the stepped structure of the round table is provided with two stages, and of course, in other embodiments, four stages or other numbers not less than two stages may be provided.
In example 11 of the apparatus for disconnecting switch operation test in the present utility model: in view of the arrangement of the wire holder, this embodiment proposes a new arrangement, unlike embodiment 1, in which the fixed conductor on the wire holder has only one turn. Of course, in other embodiments, the fixed conductors are no longer arranged in a circumferential array, but are arranged in a straight line.
In example 12 of the apparatus for disconnecting switch operation test in the present utility model: in view of the arrangement of the cover plate, this embodiment proposes a new arrangement form, unlike embodiment 1, in which the cover plate and the wire holder are integrally formed, and no obvious boundary exists between the wire holder and the cover plate.
The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. An apparatus for operation test of isolating switch, comprising a cover plate for connecting to an insulator, characterized in that: the cover plate is provided with a wire holder, the wire holder is an insulating wire holder, at least three fixed conductive pieces are integrally embedded and fixed in the wire holder, and the fixed conductive pieces penetrate through the wire holder and form wiring ends on two sides of the wire holder respectively; the cover plate is provided with a through hole, and the wiring seat is arranged at the through hole in a sealing way, or the cover plate and the wiring seat are integrally formed.
2. The apparatus for operation test of an isolating switch according to claim 1, wherein: at least two stages of round platform ladder structures with different heights are convexly arranged at least at one axial end of the wire holder, and the fixed conductive parts are arranged on each stage of round platform ladder structures.
3. The apparatus for operation test of an isolating switch according to claim 2, wherein: at least two fixed conductive pieces are arranged on the stepped structures of the round platforms at all levels.
4. A device for an operation test of an isolating switch according to claim 2 or 3, characterized in that: the wire holder comprises a wire holder body covering the through hole and a connecting edge arranged on the periphery of the wire holder body, the connecting edge is fixedly connected with the side face of the cover plate in a sealing mode, the two axial ends of the wire holder body are provided with round platform step structures, and the round platform step structures at one end extend into the through hole.
5. The apparatus for operation testing of an isolating switch of claim 4, wherein: the cover plate comprises a cover plate body and an avoidance plate, wherein the cover plate body is used for connecting an insulator, and the avoidance plate is provided with an avoidance groove used for avoiding the insulator to avoid the collision of the round platform ladder structure to the insulator.
6. A device for disconnector operation test according to any of claims 1-3, characterized in that: the wiring seat is arranged in a split mode with the cover plate, and comprises a wiring seat body covering the through hole and a connecting edge arranged on the periphery of the wiring seat body, and the connecting edge is fixedly connected with the side face of the cover plate in a sealing mode.
7. The apparatus for operation test of an isolating switch as in claim 6, wherein: the connecting edge is fixed on the cover plate through a bolt, a sealing ring is arranged between the connecting edge and the side face of the cover plate, a threaded hole matched with the bolt is formed in the cover plate, the threaded hole is a blind hole, and a through hole for the bolt to pass through is formed in the connecting edge.
8. A device for disconnector operation test according to any of claims 1-3, characterized in that: the cover plate comprises a cover plate body and an avoidance plate, wherein the cover plate body is used for connecting the insulator, and the avoidance plate is provided with an avoidance groove used for avoiding the insulator to avoid the wire holder from being abutted to the insulator.
9. The apparatus for operation testing of a disconnector according to any of claims 1-5, characterized in that: the cover plate is a metal cover plate.
10. The apparatus for operation testing of a disconnector according to any of claims 1-5, characterized in that: the device for the operation test of the isolating switch further comprises a flexible conductive piece connected between the wiring end and the metal insert of the insulator, wherein connecting rings are respectively arranged at two ends of the flexible conductive piece, the wiring end is provided with a threaded connecting hole, and the connecting rings are connected to the wiring end of the metal insert of the insulator or the fixed conductive piece through bolts.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221078875U true CN221078875U (en) | 2024-06-04 |
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