CN112748311A - GIS on-site voltage withstand testing device and voltage withstand conductor assembly thereof - Google Patents
GIS on-site voltage withstand testing device and voltage withstand conductor assembly thereof Download PDFInfo
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- CN112748311A CN112748311A CN202011418306.0A CN202011418306A CN112748311A CN 112748311 A CN112748311 A CN 112748311A CN 202011418306 A CN202011418306 A CN 202011418306A CN 112748311 A CN112748311 A CN 112748311A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
Abstract
The invention relates to a GIS on-site voltage resistance testing device and a voltage resistance conductor assembly thereof, wherein the voltage resistance conductor assembly comprises a front conductor pole and a rear conductor, the front conductor pole is connected to a voltage resistance sleeve, a ball head structure or a semi-ball head structure integrally arranged at the rear end of the rear conductor is in conductive contact with conductive pieces in different shapes on a GIS, the conductive connection is conveniently realized under the condition of not changing a GIS main loop, a voltage resistance interface does not need to be reserved at a specific position in a voltage resistance test, a redundant design is removed, the voltage resistance limitation of an on-site product is effectively solved, the voltage resistance sleeve is quickly butted, and the problems that the connecting conductor and a shield on the GIS have no action during normal operation and the product cost is increased due to phase change.
Description
Technical Field
The invention relates to a GIS (gas insulated switchgear) on-site voltage withstanding testing device and a voltage withstanding conductor assembly thereof.
Background
GIS is with its self modularization high, integrated nature good, characteristics such as safe and reliable can be widely used, after GIS is installed at the scene, need carry out withstand voltage test, pass through withstand voltage sleeve pipe actual test high pressure during withstand voltage test, the electric current is less this moment to survey the voltage resistance of components and parts in the GIS.
When the withstand voltage test is carried out specifically, if no sleeve inlet and outlet line is designed on the GIS, a connecting conductor is reserved at a specific position often, a socket is arranged at the connecting conductor, after the GIS is installed on site, a conducting rod is inserted into the socket of the connecting conductor, the conducting rod is connected with the withstand voltage sleeve, and then the withstand voltage test is carried out. After the withstand voltage test is completed, the conducting rod is removed, a shield is arranged at the socket of the connecting conductor, the electric field at the socket is optimized, and the influence on the electric field in the GIS is avoided.
The specially configured connecting conductor and the shield can meet the requirement of a withstand voltage test, but the connecting conductor and the shield have no effect when the GIS operates normally, so that a redundant structural design is caused, and the product cost is increased by phase change.
Disclosure of Invention
The invention aims to provide a voltage-resistant conductor component of a GIS (geographic information System) on-site voltage-resistant testing device, which aims to solve the technical problem that when a voltage-resistant test is realized by inserting a conducting rod and a connecting conductor in the prior art, a shielding and a connecting conductor with a socket are required to be arranged, so that a GIS has redundant design; meanwhile, the invention also provides a GIS on-site voltage resistance testing device using the voltage resistance conductor assembly.
In order to achieve the purpose, the technical scheme of the voltage-resistant conductor component of the GIS on-site voltage-resistant testing device provided by the invention is as follows: a withstand voltage conductor assembly of a GIS on-site withstand voltage testing device comprises:
the front guide electric pole extends along the front-back direction, and the front end of the front guide electric pole is used for being in conductive fixed connection with a conductive insert in the center of a connecting insulator of the voltage-resistant sleeve;
the rear conductor is integrally or separately arranged at the rear end of the front guide electric pole and is in conductive connection with the front guide electric pole;
the rear end of the rear conductor is a conductive contact end which is integrally arranged on a ball head structure or a hemispherical head structure on the rear conductor and is used for being in pressure conductive contact with a corresponding conductive piece on the GIS main loop.
The beneficial effects are that: in the voltage-resistant conductor assembly provided by the invention, the conductive contact end of the rear conductor adopts a ball head structure or a hemispherical head structure, and when the voltage-resistant conductor assembly is used, the conductive contact end is directly pressed on the conductive piece on the GIS main loop, so that the voltage resistance test can be ensured, and the connection is simple and safe. Under the condition of not changing a GIS main loop, a pressure-resistant interface does not need to be reserved at a specific position, redundant design is not added, the pressure-resistant limitation of field products is effectively solved, the pressure-resistant sleeve is enabled to be connected quickly, and the production cost is saved.
Further, when the rear conductor and the front guide electric pole are arranged in a split mode, the rear conductor is movably assembled at the rear end of the front conductive pole along the front-rear direction, an elastic piece is arranged between the front guide electric pole and the rear conductor, and the elastic piece applies elastic acting force for forcing the rear conductor to move backwards to the rear conductor.
The beneficial effects are that: the components of a whole that can function independently setting between preceding electric pole and the back conductor is equipped with the elastic component between, makes its length can stretch out and draw back, the change butt joint conductor's that can relax length to be used for the GIS major loop structure of overlap joint isostructure, the elasticity through the elastic component simultaneously to the back conductor and the GIS major loop on realize compressing tightly the operation between the electrically conductive piece, guarantee withstand voltage current's the passing through.
Furthermore, be equipped with back guiding hole on the rear end face of preceding electric pole, back guiding hole extends along the fore-and-aft direction, and the back conductor includes the conductor body, and conductor body direction cartridge is in the guiding hole of back, and bulb structure or hemisphere head structure an organic whole set up the rear end at the conductor body.
The beneficial effects are that: the rear guide hole plays a directional role in the rear conductor, the rear conductor is conveniently guided and assembled, the production cost is saved, and the safety is improved.
Furthermore, the elastic part is a conductive pressure spring, the conductive pressure spring is arranged in the rear guide hole and is positioned in front of the rear conductor, and the conductive pressure spring applies elastic acting force to the rear conductor and is in conductive communication with the front guide electric pole and the rear conductor.
The beneficial effects are that: the conductive pressure spring is used as an elastic part, so that the structure is simple, and the required cost is low.
Furthermore, the conductor body is provided with a stopping step, the step surface of the stopping step is arranged backwards, the hole wall of the rear guide hole is provided with a limiting screw, and the limiting screw inwards protrudes out of the hole wall of the rear guide hole to be matched with the stopping step in a stopping manner.
The beneficial effects are that: the limiting screw is utilized to conveniently realize stopping and limiting, and the conductor body can not fall off from the rear guide hole while stretching through stopping and matching.
Furthermore, preceding lead electric pole is hollow pole, and this hollow pole has the hole that link up around, and this hole has back step hole section, and back step hole section includes rear side major diameter section, front side minor diameter section and the step face of arranging backward, and the rear side major diameter section forms back guiding hole has arranged the electrically conductive backing plate on the step face, and electrically conductive pressure spring front end top is in on the electrically conductive backing plate.
The beneficial effects are that: the conductive backing plate supports the conductive pressure spring, so that the conductive pressure spring can stably generate elasticity for the rear conductor, and the pressure spring and the backing plate are made of conductive materials, so that the conductivity between the rear conductor and the front guide electric pole is ensured.
Further, preceding lead electric pole is hollow pole, and this hollow pole has the hole that link up around, and preceding lead electric pole front end is equipped with the constant head tank for with withstand voltage sleeve pipe on connect the rear end projecting part location of the conductive inserts of insulator peg graft, the constant head tank with the hole intercommunication of hollow pole is worn to be equipped with fastening bolt by backward in the hole forward, during this fastening bolt penetrates the constant head tank, be used for with rear end projecting part fastening assembly, in order to be in the same place with preceding electric pole and withstand voltage sleeve pipe on the conductive inserts fixed assembly of connecting the insulator.
The beneficial effects are that: lead electrically conductive inserts of leading electric pole and last connection insulator of voltage-withstanding sleeve pipe and pass through bolted connection, make connection structure more firm, also can dismantle simultaneously, install when using, also can dismantle when not needing, use convenient nimble.
Furthermore, the front end of the front guide electric pole is provided with a front smooth section, and the peripheral surface of the front smooth section is a smooth circular arc-shaped peripheral surface.
The beneficial effects are that: the smooth arc-shaped periphery plays a role in shielding the front conducting rod, so that the voltage-resistant conductor assembly does not need to be provided with an additional shielding cover in the using process.
Further, in the front-rear direction, the radial dimension of the outer peripheral surface of the front smooth section is gradually reduced from the middle of the front smooth section to the front side and the rear side respectively.
The beneficial effects are that: effectively optimize the electric field distribution of leading electric pole front end.
The technical scheme of the GIS on-site voltage withstanding testing device provided by the invention is as follows:
a GIS on-site withstand voltage testing device comprises:
the pressure-resistant sleeve comprises a connecting insulator, is used for being fixedly assembled with the GIS cylinder in a sealing way during on-site pressure resistance test, and a conductive insert is arranged in the center of the connecting insulator;
the voltage-resistant conductor assembly comprises a front guide electric pole, a front end and a back end, wherein the front guide electric pole extends along the front-back direction, and the front end is used for being fixedly connected with a conductive insert in the center of a connecting insulator of the voltage-resistant sleeve in a conductive manner;
the rear conductor is integrally or separately arranged at the rear end of the front guide electric pole and is in conductive connection with the front guide electric pole;
the rear end of the rear conductor is a conductive contact end which is a ball head structure or a hemispherical head structure integrally arranged on the rear conductor and is used for being in pressure conductive contact with a corresponding conductive piece on a GIS main loop;
the front end of a front guide wire rod of the voltage-resistant conductor assembly is electrically and fixedly connected with the conductive insert, and when the voltage-resistant conductor assembly penetrates into the GIS barrel, the conductive contact end of the rear conductor is used for being in voltage-conductive contact with a corresponding conductive piece on the GIS main loop.
The beneficial effects are that: in the GIS on-site voltage-withstanding testing device provided by the invention, the voltage-withstanding conductor assembly is fixedly assembled with the voltage-withstanding sleeve, and when voltage-withstanding testing is carried out, the connecting insulator is correspondingly connected with the GIS barrel, so that the rear conductor is in conductive contact with the corresponding conductive piece in the GIS main loop, and the voltage-withstanding testing can be carried out. Because the conductive contact end of the rear conductor adopts a ball head structure or a semi-ball head structure, the rear conductor is directly pressed on the conductive piece on the GIS main loop, the voltage withstanding test is conveniently ensured, and the connection is simple and safe. Under the condition of not changing a GIS main loop, a pressure-resistant interface does not need to be reserved at a specific position, redundant design is not added, the pressure-resistant limitation of field products is effectively solved, the pressure-resistant sleeve is enabled to be connected quickly, and the production cost is saved. The technical problem that when a conducting rod and a connecting conductor are adopted to be plugged to realize voltage withstanding test in the prior art, a shielding and connecting conductor with a socket are required to be arranged to cause GIS to have a redundancy design is solved conveniently.
Further, when the rear conductor and the front guide electric pole are arranged in a split mode, the rear conductor is movably assembled at the rear end of the front conductive pole along the front-rear direction, an elastic piece is arranged between the front guide electric pole and the rear conductor, and the elastic piece applies elastic acting force for forcing the rear conductor to move backwards to the rear conductor.
The beneficial effects are that: the components of a whole that can function independently setting between preceding electric pole and the back conductor is equipped with the elastic component between, makes its length can stretch out and draw back, the change butt joint conductor's that can relax length to be used for the GIS major loop structure of overlap joint isostructure, the elasticity through the elastic component simultaneously to the back conductor and the GIS major loop on realize compressing tightly the operation between the electrically conductive piece, guarantee withstand voltage current's the passing through.
Furthermore, be equipped with back guiding hole on the rear end face of preceding electric pole, back guiding hole extends along the fore-and-aft direction, and the back conductor includes the conductor body, and conductor body direction cartridge is in the guiding hole of back, and bulb structure or hemisphere head structure an organic whole set up the rear end at the conductor body.
The beneficial effects are that: the rear guide hole plays a directional role in the rear conductor, the rear conductor is conveniently guided and assembled, the production cost is saved, and the safety is improved.
Furthermore, the elastic part is a conductive pressure spring, the conductive pressure spring is arranged in the rear guide hole and is positioned in front of the rear conductor, and the conductive pressure spring applies elastic acting force to the rear conductor and is in conductive communication with the front guide electric pole and the rear conductor.
The beneficial effects are that: the conductive pressure spring is used as an elastic part, so that the structure is simple, and the required cost is low.
Furthermore, the conductor body is provided with a stopping step, the step surface of the stopping step is arranged backwards, the hole wall of the rear guide hole is provided with a limiting screw, and the limiting screw inwards protrudes out of the hole wall of the rear guide hole to be matched with the stopping step in a stopping manner.
The beneficial effects are that: the limiting screw is utilized to conveniently realize stopping and limiting, and the conductor body can not fall off from the rear guide hole while stretching through stopping and matching.
Furthermore, preceding lead electric pole is hollow pole, and this hollow pole has the hole that link up around, and this hole has back step hole section, and back step hole section includes rear side major diameter section, front side minor diameter section and the step face of arranging backward, and the rear side major diameter section forms back guiding hole has arranged the electrically conductive backing plate on the step face, and electrically conductive pressure spring front end top is in on the electrically conductive backing plate.
The beneficial effects are that: the conductive backing plate supports the conductive pressure spring, so that the conductive pressure spring can stably generate elasticity for the rear conductor, and the pressure spring and the backing plate are made of conductive materials, so that the conductivity between the rear conductor and the front guide electric pole is ensured.
Further, preceding lead electric pole is hollow pole, and this hollow pole has the hole that link up around, and preceding lead electric pole front end is equipped with the constant head tank for with withstand voltage sleeve pipe on connect the rear end projecting part location of the conductive inserts of insulator peg graft, the constant head tank with the hole intercommunication of hollow pole is worn to be equipped with fastening bolt by backward in the hole forward, during this fastening bolt penetrates the constant head tank, be used for with rear end projecting part fastening assembly, in order to be in the same place with preceding electric pole and withstand voltage sleeve pipe on the conductive inserts fixed assembly of connecting the insulator.
The beneficial effects are that: lead electrically conductive inserts of leading electric pole and last connection insulator of voltage-withstanding sleeve pipe and pass through bolted connection, make connection structure more firm, also can dismantle simultaneously, install when using, also can dismantle when not needing, use convenient nimble.
Furthermore, the front end of the front guide electric pole is provided with a front smooth section, and the peripheral surface of the front smooth section is a smooth circular arc-shaped peripheral surface.
The beneficial effects are that: the smooth arc-shaped periphery plays a role in shielding the front conducting rod, so that the voltage-resistant conductor assembly does not need to be provided with an additional shielding cover in the using process.
Further, in the front-rear direction, the radial dimension of the outer peripheral surface of the front smooth section is gradually reduced from the middle of the front smooth section to the front side and the rear side respectively.
The beneficial effects are that: effectively optimize the electric field distribution of leading electric pole front end.
Drawings
Fig. 1 is a schematic structural diagram of a GIS field withstand voltage testing device provided by the present invention when connected with a GIS;
FIG. 2 is a schematic view of the structure of the voltage-resistant conductor assembly of FIG. 1;
description of reference numerals:
1. a pressure-resistant bushing; 11. connecting an insulator; 12. a conductive insert; 2. a voltage-resistant conductor assembly; 3. a leading pole; 31. positioning a groove; 32. bolt positioning holes; 33. fastening a bolt; 34. a rear pilot hole; 35. a front smooth section; 4. a rear conductor; 41. a conductor body; 42. a ball head structure; 43. stopping the step; 44. a limit screw; 5. a GIS; 51. a conductive member; 52. a GIS cylinder; 6. a conductive backing plate; 7. and a conductive pressure spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
The specific embodiment 1 of the GIS on-site voltage withstanding testing device of the invention:
in the GIS on-site voltage resistance testing device provided by the invention, the rear conductor of the voltage resistance conductor assembly is provided with the ball head structure, the voltage conduction in the voltage resistance test can be realized by utilizing the contact of the ball head structure and the conductive piece, the ball head structure has good adaptability, can be adapted to the conductive piece in any shape, does not need to specially design a plug, does not need to be additionally provided with a shielding piece independently, and can effectively avoid redundant design. In addition, the rear conductor is elastically and floatingly assembled on the front conducting rod, so that the rear conductor can be adapted to GIS with different types and sizes, and the universality of the testing device is improved.
The GIS field voltage withstand test device is shown in figure 1 and comprises a voltage withstand sleeve 1 and a voltage withstand conductor assembly 2. The voltage-resistant bushing 1 comprises a connecting insulator 11, a conductive insert 12 is arranged in the center of the connecting insulator 11, and the conductive insert 12 is used for being fixed with one end of the voltage-resistant conductor assembly 2 in a conductive mode.
As shown in fig. 2, the voltage-resistant conductor assembly 2 includes a front lead pole 3 and a rear conductor 4 extending in the front-rear direction. The front end of the leading electric pole 3 is used for being fixedly connected with the conductive insert 12 in a conductive mode. The rear conductor 4 is electrically connected with the front conducting pole 3, meanwhile, the conductive contact end at the rear end of the rear conductor 4 is in pressing and electrically connected with a conductive piece 51 in the GIS5, and the conductive piece 51 belongs to a GIS5 main loop.
In this embodiment, preceding lead electric pole 3 and 4 components of a whole that can function independently of back conductor are arranged, and preceding lead electric pole 3 is hollow pole, has the hole that link up from beginning to end, and this hole has back step hole section and bolt mounting hole section, and back step hole section includes the big footpath section of rear side, the step face of front side path section and arranging towards the back, is the step face between front side path section and the big footpath section of rear side, and the big footpath section of rear side forms back guiding hole 34, and the small footpath section of front side forms bolt locating hole 32. Leading 3 front ends of electric pole are equipped with constant head tank 31, and constant head tank 31 and the bolt mounting hole section intercommunication of hollow pole hole, during the assembly, wear to assemble fastening bolt 33 forward by the back, and fastening bolt 33 penetrates after passing back backstage hole section in the constant head tank 31. The front end of the front leading electric pole 3 is provided with a front smooth section 35, the peripheral surface of the front smooth section 35 is a smooth circular arc-shaped peripheral surface, and the radial dimension of the peripheral surface of the front smooth section 35 is gradually reduced from the middle of the front smooth section to the front side and the rear side respectively in the front-rear direction.
As shown in fig. 1, a conductive insert 12 is provided at the center of a connecting insulator 11 of a voltage-withstanding casing 1, a positioning groove 31 is provided at the front end of the leading electric pole 3, and when assembling, the conductive insert 12 is inserted in a positioning manner, and the leading electric pole 3 is fastened and assembled on the conductive insert 12 by a fastening bolt 33 penetrating into the positioning groove 31, so that the leading electric pole 3 and the voltage-withstanding casing can be fixedly assembled together.
The front end of the front guide electric pole 3 is provided with a smooth arc-shaped peripheral surface, and the smooth arc-shaped peripheral surface plays a role in shielding the front guide electric pole 3, so that the voltage-resistant conductor assembly 2 does not need to be provided with an additional shielding cover in the using process, and the production cost is saved. Leading electric pole 3 is in the front and back direction, and the radial dimension of the outer peripheral face of preceding smooth section reduces to both sides around to respectively in the middle of the preceding smooth section gradually, can effectively optimize the outside electric field of leading electric pole front end.
The rear conductor 4 comprises a conductor body 41 and a conductive contact end located at the rear end of the rear conductor 4, the conductive contact end is a bulb structure 42 integrally arranged at the rear end of the conductor body 41, and the bulb structure 42 is used for being in pressing conductive connection with a conductive piece 51 on the GIS5 main loop.
The rear guide hole 34 formed by the large-diameter section at the rear side of the front guide electric pole 3 extends forwards and backwards, the conductor body 41 is inserted into the rear guide hole 34 in a guiding manner, the conductor body 41 is provided with a stopping step 43, the step surface of the stopping step 43 is arranged backwards, the hole wall of the rear guide hole 34 is provided with a limiting screw 44, the limiting screw 44 protrudes inwards from the hole wall of the rear guide hole 34 and is matched with the stopping step 43 in a stopping manner, and therefore the conductor body 41 cannot be separated from the rear guide hole 34.
In the rear guide hole 34, a conductive pad 6, an elastic member and a rear conductor 4 are installed in this order from front to rear. In this embodiment, the elastic member is specifically a conductive compression spring 7, a front end of the conductive compression spring 7 is pressed against the conductive gasket 6, and a rear end of the conductive compression spring 7 is pressed against the rear conductor 4. The conductive base plate 6 is arranged on the step surface of the rear step hole section of the front conductive rod 3, the front end of the conductive pressure spring 7 is pressed on the conductive base plate 6, the conductive base plate and the conductive pressure spring are conductive pieces, and the conductive base plate 6 is used for realizing conductive communication between the conductive base plate and the conductive pressure spring 7 while providing stable support for the conductive pressure spring. The rear end of the conductive pressure spring 7 is pressed against the rear conductor 4, elastic acting force is applied to the rear conductor 4, the length of the conductor 4 leaking out of the rear guide hole 34 is adjusted by matching with the limiting screw 44 on the hole wall of the rear guide hole 34, so that the length change of the voltage-resistant conductor component 2 is realized, and the rear conductor 4 is tightly and conductively connected with the GIS5 through the elastic acting force applied to the rear conductor 4. The front conducting pole 3, the rear conductor 4, the conducting base plate 6 and the conducting pressure spring 7 are conducting pieces and are in conducting communication with each other, and the conductivity of the whole voltage-resistant conductor assembly 2 is improved.
During assembly, the positioning groove 31 at the front end of the leading electric pole 3 is fixed with the conductive insert 12 on the pressure-resistant sleeve 1, and then the fastening bolt 33 penetrates through the positioning groove 31 to be fixedly assembled with the conductive insert 12. The conductive backing plate 6, the conductive pressure spring 7 and the rear conductor 4 are sequentially placed in the rear guide hole 34, and the limiting screw 44 is mounted on the hole wall of the rear guide hole 34 to limit the rear conductor 4 from being separated from the rear guide hole 34.
The existence of the rear conductor 4 and the conductive compression spring 7 enables the length of the voltage-resistant conductor component 2 to be adjustable within a certain range, so that different distances from the conductive insert 12 at the center of the connecting insulator 11 on the voltage-resistant sleeve 1 to the top pressing position of the corresponding conductive piece 51 on the GIS main loop are adapted, the tight connection between the conductive contact end of the rear conductor 4 and the corresponding conductive piece 51 on the GIS5 main loop is realized through the elastic acting force of the conductive compression spring 7, and the passing of the current-resistant voltage is ensured. The back conductor 4 and leading electrically conductive assembly that slides between the pole 3, electrically conductive pressure spring 7 and electrically conductive backing plate 7 are electrically conductive, when providing the support to back conductor 4, also make the electric conductivity between back conductor 4 and the leading pole 3 better. The conductive contact end of the rear conductor 4 is of a ball head structure 42, the conductive piece 51 does not need to be replaced according to different shapes of the conductive contact end, the structure of a main loop does not need to be changed, a redundant design structure is avoided, and the use is more convenient and flexible.
After the GIS is installed on site, a GIS site voltage withstand test device is needed to be used for carrying out voltage withstand test on the GIS, and because the conductive contact end is the ball head structure 42, the ball head structure 42 is only needed to be in contact with the corresponding conductive piece 51, a special socket is not needed to be arranged on the corresponding conductive piece 51 of the GIS for plugging one end of the voltage withstand conductor component 2, and therefore the corresponding conductive piece 51 is not needed to be provided with the plugged socket. After the withstand voltage test is finished, only the withstand voltage conductor component 2 needs to be pulled out, and the corresponding conductive piece 51 is not damaged, so that a shielding and optimized electric field is not needed, the influence on the electric field in the GIS is avoided, the safety is improved, and the product cost is saved.
The specific embodiment 2 of the GIS on-site voltage withstanding testing device of the invention:
the GIS field withstand voltage testing device in the embodiment is different from that in the embodiment 1 only in that: in example 1, the conductive contact end of the rear conductor is a hemispherical head structure. In this embodiment, the conductive contact end at the rear end of the rear conductor on the voltage-resistant conductor assembly is integrally arranged in the hemispherical head structure at the rear end of the conductor body, and the spherical surface faces backwards and is in voltage-conductive contact with the corresponding conductive piece on the GIS main loop.
The specific embodiment 3 of the GIS field withstand voltage testing device of the present invention:
the GIS field withstand voltage testing device in the embodiment is different from that in the embodiment 2 only in that: in embodiment 1, the leading electric pole and the trailing conductor are arranged separately. In this embodiment, the rear conductor of the voltage-resistant conductor assembly is integrally disposed at the rear end of the front conductive rod, the rear conductor is fixed on the front conductive rod, the front conductive rod is a solid rod, and the length of the voltage-resistant conductor assembly is a fixed length. When the distances from the conductive insert connected with the center of the insulator on the voltage-resistant sleeve to the top pressing positions of the corresponding conductors on the GIS main circuit are different, voltage-resistant conductor assemblies with different lengths are required to be installed on the voltage-resistant sleeve to adapt to the different distances.
The specific embodiment 4 of the GIS field withstand voltage testing device of the present invention:
the GIS field withstand voltage testing device in the embodiment is different from that in the embodiment 1 only in that: in example 1, the rear conductor was stopped by a stopper screw to prevent the conductor from coming off. In this embodiment, a baffle may be disposed at a rear port of the rear guide hole, and the baffle is configured to be in stop fit with the stop step on the conductor body, so as to achieve anti-drop and spacing.
The specific embodiment 5 of the GIS field withstand voltage testing device of the present invention:
the difference from example 1 is mainly that: and a conductive pressure spring is used as an elastic part to apply elastic acting force to the rear conductor. In this embodiment, a tension spring may be disposed in the inner bore of the front conductive rod, and the tension spring applies an elastic tension force to the rear conductor to force the rear conductor to press against the conductive member in the GIS main loop.
In the specific embodiment of the voltage-resistant conductor assembly of the GIS field voltage-resistant testing device, the structure of the voltage-resistant conductor assembly in this embodiment is the same as that of the voltage-resistant conductor assembly described in the specific embodiment of the GIS field voltage-resistant testing device, and details are not repeated.
Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a withstand voltage conductor subassembly of on-spot withstand voltage testing arrangement of GIS which characterized in that includes:
the front guide electric pole (3) extends along the front-back direction, and the front end of the front guide electric pole is used for being fixedly connected with a conductive insert (12) in the center of a connecting insulator (11) of the voltage-resistant sleeve (1) in a conductive manner;
the rear conductor (4) is integrally or separately arranged at the rear end of the front guide electric pole (3) and is in conductive connection with the front guide electric pole (3);
the rear end of the rear conductor (4) is a conductive contact end which is a ball head structure (42) or a hemispherical head structure integrally arranged on the rear conductor and is used for being in pressure conductive contact with a corresponding conductive piece on the GIS main loop.
2. The withstand voltage conductor assembly of the GIS on-site withstand voltage testing device according to claim 1, characterized in that when the rear conductor (4) and the front conducting rod (3) are separately arranged, the rear conductor (4) is movably assembled at the rear end of the front conducting rod (3) along the front-rear direction, an elastic member is arranged between the front conducting rod (3) and the rear conductor (4), and the elastic member applies an elastic force to the rear conductor (4) to force the rear conductor (4) to move backwards.
3. The withstand voltage conductor assembly of the GIS on-site withstand voltage testing device according to claim 2, characterized in that a rear guide hole (34) is formed in the rear end face of the front guide electric pole (3), the rear guide hole (34) extends in the front-rear direction, the rear conductor (4) comprises a conductor body (41), the conductor body (41) is guided and inserted in the rear guide hole (34), and the bulb structure (42) or the hemispherical head structure is integrally arranged at the rear end of the conductor body (41).
4. The GIS on-site voltage withstand testing device's withstand voltage conductor assembly according to claim 3, characterized in that, the elastic member is a conductive pressure spring (7), and conductive pressure spring (7) are arranged in back guiding hole (34), and conductive pressure spring (7) are located the back conductor (4) the place ahead, and conductive pressure spring (7) exert elastic force to back conductor (4) and electrically conduct intercommunication leading electric pole (3) and back conductor (4).
5. The withstand voltage conductor assembly of the GIS on-site withstand voltage testing device according to claim 4, characterized in that the conductor body (41) is provided with a stopping step (43), the step surface of the stopping step (43) is arranged backward, the hole wall of the rear guide hole (34) is provided with a limit screw (44), and the limit screw (44) protrudes inward from the hole wall of the rear guide hole (34) to be arranged to be matched with the stopping step (43) in a stopping manner.
6. The GIS field voltage withstanding testing device withstand voltage conductor assembly according to claim 4, wherein the front guide pole rod (3) is a hollow rod, the hollow rod is provided with an inner hole which is through from front to back, the inner hole is provided with a rear step hole section, the rear step hole section comprises a rear large-diameter section, a front small-diameter section and a step surface which is arranged towards the rear, the rear large-diameter section forms the rear guide hole (34), a conductive backing plate (6) is arranged on the step surface, and the front end of the conductive compression spring (7) is pressed against the conductive backing plate (6).
7. The withstand voltage conductor assembly of the GIS on-site withstand voltage testing device according to any one of claims 2 to 5, characterized in that the leading electric pole (3) is a hollow pole having an inner hole penetrating from front to back, the leading electric pole (3) is provided with a positioning groove (31) at the front end thereof for positioning and inserting with a rear end protrusion of a conductive insert (12) connected with an insulator (11) on the withstand voltage casing (1), the positioning groove (31) is communicated with the inner hole of the hollow pole, a fastening bolt (33) is penetrated into the inner hole from back to front, the fastening bolt (33) penetrates into the positioning groove (31) for fastening and assembling with the rear end protrusion, so as to fixedly assemble the leading electric pole (3) and the conductive insert (12) connected with the insulator (11) on the withstand voltage casing (1).
8. The withstand voltage conductor assembly of the GIS on-site withstand voltage testing device according to claim 7, wherein the front end of the front lead wire rod (3) is provided with a front smooth section (35), and the outer peripheral surface of the front smooth section (35) is a smooth circular arc-shaped outer peripheral surface.
9. The GIS on-site voltage withstand conductor assembly of claim 8, wherein the radial dimension of the outer peripheral surface of the front smooth section (35) is gradually reduced from the middle of the front smooth section (35) to the front and rear sides in the front-rear direction.
10. A GIS on-site withstand voltage testing device comprises:
the pressure-resistant bushing (1) comprises a connecting insulator (11) and is used for being fixedly assembled with the GIS cylinder (52) in a sealing way during a field pressure-resistant test;
a conductive insert (12) is arranged in the center of the connecting insulator (11);
the GIS on-site voltage withstanding testing device is characterized by further comprising a voltage withstanding conductor assembly (2), the voltage withstanding conductor assembly adopts the voltage withstanding conductor assembly of the GIS on-site voltage withstanding testing device as claimed in any one of claims 1 to 9, the front end of a front lead wire rod (3) of the voltage withstanding conductor assembly is electrically and fixedly connected with the conductive insert (12), and when the voltage withstanding conductor assembly penetrates into the GIS barrel (52), a conductive contact end of a rear conductor (4) is used for being in pressure conductive contact with a corresponding conductive piece on a GIS main loop.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011418306.0A CN112748311A (en) | 2020-12-07 | 2020-12-07 | GIS on-site voltage withstand testing device and voltage withstand conductor assembly thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011418306.0A CN112748311A (en) | 2020-12-07 | 2020-12-07 | GIS on-site voltage withstand testing device and voltage withstand conductor assembly thereof |
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| CN202011418306.0A Pending CN112748311A (en) | 2020-12-07 | 2020-12-07 | GIS on-site voltage withstand testing device and voltage withstand conductor assembly thereof |
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| CN106226565A (en) * | 2016-08-23 | 2016-12-14 | 华电电力科学研究院 | A kind of special electric power p-wire plug and method of testing |
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