CN113009190A - GIS is with experimental frock of single insulating pull rod and test equipment - Google Patents
GIS is with experimental frock of single insulating pull rod and test equipment Download PDFInfo
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- CN113009190A CN113009190A CN201911320395.2A CN201911320395A CN113009190A CN 113009190 A CN113009190 A CN 113009190A CN 201911320395 A CN201911320395 A CN 201911320395A CN 113009190 A CN113009190 A CN 113009190A
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- 238000012360 testing method Methods 0.000 title claims abstract description 65
- 238000009413 insulation Methods 0.000 claims abstract description 43
- 230000003044 adaptive effect Effects 0.000 claims abstract description 14
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 18
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 239000002184 metal Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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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 single insulation pull rod test tool and test equipment, wherein the GIS single insulation pull rod test tool comprises: the device comprises a barrel, wherein a high-pressure connecting seat and a low-pressure connecting seat are respectively arranged at two axial ends of the barrel; the high-voltage connecting seat is used for connecting a high-voltage output end of the pressure device and is in conductive connection with one end of the insulating pull rod; the low-voltage connecting seat is used for grounding and is in conductive connection with the other end of the insulating pull rod; the test tool further comprises a low-voltage adapter and a high-voltage adapter, the low-voltage adapter is used for being electrically connected to the low-voltage connecting base, and the high-voltage adapter is used for being electrically connected to the high-voltage connecting base; one of the two adapters is provided with a stud or a threaded hole so as to be fixed on the corresponding low-voltage connecting seat or the corresponding high-voltage connecting seat through the stud or the threaded hole; and the other one of the two adapters is provided with a plug-in structure, and the corresponding low-voltage connecting seat or the high-voltage connecting seat is provided with an adaptive plug-in structure which is in plug-in fit with the plug-in structure.
Description
Technical Field
The invention relates to a single insulation pull rod test tool and test equipment for a GIS.
Background
With the development of the electric power industry in China, gas insulated metal enclosed switchgear (GIS) is increasingly widely applied to power transmission networks, and plays a key role in the safe, stable and economic operation of electric power systems. The insulating pull rod is used as a key part in the GIS, and plays a role in lifting the weight. On one hand, the insulating pull rod is connected with the movable part of the arc extinguish chamber and an external mechanism, so that the movable part has certain mechanical strength, and the aspect can be completed in a laboratory. On the other hand, the insulating pull rod is connected with a high potential and a low potential, so that the insulating function of the shell and a charged part is achieved, and if the electric performance of the insulating pull rod is insufficient, the operation safety of high-voltage equipment is seriously influenced.
In order to ensure the reliability of the insulating pull rod, the insulating pull rod is required to be subjected to necessary mechanical performance tests and electrical performance tests in a factory. The Chinese patent with the publication number of CN103353574B discloses an insulation test device, which comprises a cylindrical shell, wherein an upper cover plate is arranged at the top end of the shell, an insulation partition plate is arranged at the bottom end of the shell, a lower support seat is arranged in the middle of the insulation partition plate, a low-voltage shielding cover and an upper support seat positioned in the low-voltage shielding cover are arranged on the lower surface of the upper cover plate, a high-voltage shielding cover and a high-voltage contact conductor positioned in the high-voltage shielding cover are arranged on the lower support seat, and metal connecting sheets are arranged on the high-voltage contact conductor and the upper support seat.
The structure of the insulation test device is complex, and the shielding cover is arranged outside the insulation pull rod, so that the insulation pull rod and the metal connecting sheet are inconvenient to assemble, the insulation pull rod is inconvenient to disassemble and assemble, and the detection efficiency of the insulation pull rod is affected.
Disclosure of Invention
The invention aims to provide a single insulated pull rod test tool for a GIS (gas insulated switchgear), which aims to solve the technical problem that the insulated pull rod in the prior art is inconvenient to disassemble and assemble; the invention also aims to provide a single insulated pull rod test device for the GIS, so as to solve the technical problem that the detection efficiency of the insulated pull rod is influenced because the insulated pull rod in the prior art is inconvenient to disassemble and assemble.
In order to achieve the purpose, the technical scheme of the single insulating pull rod test tool for the GIS is as follows:
GIS includes with experimental frock of single insulating pull rod: the device comprises a cylinder body, a test device and a test device, wherein a single insulating pull rod to be tested is arranged in the cylinder body, and a high-voltage connecting seat and a low-voltage connecting seat are respectively arranged at two axial ends of the cylinder body; the high-voltage connecting seat is used for connecting a high-voltage output end of the pressure device and is in conductive connection with one end of the insulating pull rod; the low-voltage connecting seat is used for grounding and is in conductive connection with the other end of the insulating pull rod; the GIS single-insulation pull rod test tool further comprises two adapters, wherein the two adapters are respectively a low-voltage adapter and a high-voltage adapter, the low-voltage adapter is used for being electrically connected to a low-voltage connecting seat, and the high-voltage adapter is used for being electrically connected to a high-voltage connecting seat; the two adapter connectors are respectively provided with a pull rod connecting hole, and a pin penetrates through the pull rod connecting holes, so that the adapter connectors are connected into the pin holes at the corresponding ends of the insulating pull rods through pins; one of the two adapters is provided with a stud or a threaded hole so as to be fixed on the corresponding low-voltage connecting seat or the corresponding high-voltage connecting seat through the stud or the threaded hole; and the other one of the two adapters is provided with a plug-in structure, and the corresponding low-voltage connecting seat or the high-voltage connecting seat is provided with an adaptive plug-in structure which is in plug-in fit with the plug-in structure.
The beneficial effects are that: by arranging the low-voltage adapter and the high-voltage adapter, when the insulating pull rod is installed, two ends of the insulating pull rod are connected to the low-voltage adapter and the high-voltage adapter through pins respectively; because one of them in low pressure adapter and the high-pressure adapter and one of them threaded connection in low pressure connecting seat and the high-pressure connecting seat, another and another grafting assembly in low pressure connecting seat and the high-pressure connecting seat, make the first threaded connection of one of them adapter of being connected with insulating pull rod on one of them connecting seat, then with another adapter of being connected with insulating pull rod peg graft with another connecting seat can, insulating pull rod's connected mode is comparatively simple, the dismouting is changed comparatively conveniently.
Furthermore, the adaptive plug structure is a plug hole extending along the axial direction of the cylinder, the plug structure is a guide plug column, the plug hole is in guide plug fit with the guide plug column, an elastic part is arranged in the plug hole, and the elastic part is used for applying an elastic acting force opposite to the plug direction of the guide plug column to the guide plug column.
The beneficial effects are that: through increase the elastic component in the spliced eye, make direction spliced pole cartridge behind the spliced eye, can be by elastic roof pressure of elastic component, guarantee the stability of direction spliced pole in the spliced eye, and then guarantee the stability of insulating pull rod.
Furthermore, be equipped with on the high-pressure connecting seat the spliced eye, the spliced eye is the step hole, and the spliced eye includes big footpath section and path section, the elastic component sets up in the path section, the direction spliced pole passes big footpath section and direction assembly are in the path section, big footpath section is used for shielding the hookup location of insulating pull rod and high-pressure adapter.
The beneficial effects are that: through designing the spliced eye into the step hole, make the major diameter section of spliced eye be used for shielding the hookup location of insulating pull rod and high-pressure adapter need not to add high-pressure shield cover structure alone again, has simplified the structure of high-pressure connecting seat.
Furthermore, the bottom of the insertion hole is provided with a screw through hole for a screw to pass through to fix the high-voltage connecting seat, the transition position of the screw through hole and the insertion hole forms a stop step, and a stop plate for stopping and limiting the elastic piece is arranged in the insertion hole at the stop step.
The beneficial effects are that: the high-voltage connecting seat is simple in a mode of fixing through the screw, and the stop plate is arranged in the stop step formed by the screw through hole and the inserting hole, so that the elastic part can be well stopped and limited.
Further, the high-pressure adapter includes the pull rod connector and with pull rod connector fixed connection's uide bushing, the pull rod connector is the same with the structure of low pressure adapter, the uide bushing constitutes the direction plug-in post.
The beneficial effects are that: the high-voltage adapter is divided into the pull rod connector and the guide sleeve, so that the high-voltage adapter can be conveniently processed, the pull rod connector is identical to the low-voltage adapter in structure, replacement can be performed, and the processing cost is reduced.
Furthermore, the barrel includes two barrel units that set up along the fore-and-aft direction components of a whole that can function independently, and the hookup location of two barrel units corresponds with the position of adaptation grafting structure in the barrel footpath.
The beneficial effects are that: the barrel is arranged into a split structure, the connecting positions of the two barrel units correspond to the positions of the adaptive plug-in structures, the plug-in positions can be observed when the plug-in structures are plugged with the adaptive plug-in structures, and the plug-in structures and the adaptive plug-in structures are guaranteed to be plugged smoothly.
Further, the barrel has the end cover, the low pressure connecting seat includes end cover connecting plate, joint connecting plate and intermediate junction spare, and intermediate junction spare is connected in order to form the I shape structure between end cover connecting plate and the joint connecting plate, and the end cover connecting plate is fixed on the end cover, be equipped with double-screw bolt or screw hole on the low pressure adapter, the low pressure adapter passes through double-screw bolt or screw hole and fixes on the joint connecting plate, still be equipped with on the joint connecting plate and be used for carrying out shielded low pressure shield cover to the hookup location of low pressure adapter and insulating pull rod.
The beneficial effects are that: the low-voltage connecting base is designed into an I-shaped structure, so that the low-voltage connecting base is conveniently connected with the barrel end cover and the low-voltage adapter, and the low-voltage shielding cover is fixedly arranged on the joint connecting plate, so that the volume of the low-voltage shielding cover can be reduced, and the manufacturing cost of the low-voltage shielding cover is saved.
Furthermore, the space that low pressure shield cover encloses can supply the low pressure adapter to insert along the barrel axial.
The beneficial effects are that: when making low pressure adapter and low pressure connecting seat assemble, need not dismantle the low pressure shield cover, improved the assembly efficiency of insulating pull rod.
Further, the elastic part is a pressure spring.
The beneficial effects are that: the pressure spring is a standard part, is convenient to obtain and has lower cost.
In order to achieve the purpose, the technical scheme of the single-support insulated pull rod test equipment for the GIS is as follows:
GIS is with single insulating pull rod test equipment, including pressure device and install the experimental frock of single insulating pull rod for GIS on pressure device, GIS is with single insulating pull rod experimental frock, include: the device comprises a cylinder body, a test device and a test device, wherein a single insulating pull rod to be tested is arranged in the cylinder body, and a high-voltage connecting seat and a low-voltage connecting seat are respectively arranged at two axial ends of the cylinder body; the high-voltage connecting seat is used for connecting a high-voltage output end of the pressure device and is in conductive connection with one end of the insulating pull rod; the low-voltage connecting seat is used for grounding and is in conductive connection with the other end of the insulating pull rod; the GIS single-insulation pull rod test tool further comprises two adapters, wherein the two adapters are respectively a low-voltage adapter and a high-voltage adapter, the low-voltage adapter is used for being electrically connected to a low-voltage connecting seat, and the high-voltage adapter is used for being electrically connected to a high-voltage connecting seat; the two adapter connectors are respectively provided with a pull rod connecting hole, and a pin penetrates through the pull rod connecting holes, so that the adapter connectors are connected into the pin holes at the corresponding ends of the insulating pull rods through pins; one of the two adapters is provided with a stud or a threaded hole so as to be fixed on the corresponding low-voltage connecting seat or the corresponding high-voltage connecting seat through the stud or the threaded hole; and the other one of the two adapters is provided with a plug-in structure, and the corresponding low-voltage connecting seat or the high-voltage connecting seat is provided with an adaptive plug-in structure which is in plug-in fit with the plug-in structure.
The beneficial effects are that: by arranging the low-voltage adapter and the high-voltage adapter, when the insulating pull rod is installed, two ends of the insulating pull rod are connected to the low-voltage adapter and the high-voltage adapter through pins respectively; because one of them in low pressure adapter and the high-pressure adapter and one of them threaded connection in low pressure connecting seat and the high-pressure connecting seat, another and another grafting assembly in low pressure connecting seat and the high-pressure connecting seat, make the first threaded connection of one of them adapter of being connected with insulating pull rod on one of them connecting seat, then with another adapter of being connected with insulating pull rod peg graft with another connecting seat can, insulating pull rod's connected mode is comparatively simple, the dismouting is changed comparatively conveniently.
Furthermore, the adaptive plug structure is a plug hole extending along the axial direction of the cylinder, the plug structure is a guide plug column, the plug hole is in guide plug fit with the guide plug column, an elastic part is arranged in the plug hole, and the elastic part is used for applying an elastic acting force opposite to the plug direction of the guide plug column to the guide plug column.
The beneficial effects are that: through increase the elastic component in the spliced eye, make direction spliced pole cartridge behind the spliced eye, can be by elastic roof pressure of elastic component, guarantee the stability of direction spliced pole in the spliced eye, and then guarantee the stability of insulating pull rod.
Furthermore, be equipped with on the high-pressure connecting seat the spliced eye, the spliced eye is the step hole, and the spliced eye includes big footpath section and path section, the elastic component sets up in the path section, the direction spliced pole passes big footpath section and direction assembly are in the path section, big footpath section is used for shielding the hookup location of insulating pull rod and high-pressure adapter.
The beneficial effects are that: through designing the spliced eye into the step hole, make the major diameter section of spliced eye be used for shielding the hookup location of insulating pull rod and high-pressure adapter need not to add high-pressure shield cover structure alone again, has simplified the structure of high-pressure connecting seat.
Furthermore, the bottom of the insertion hole is provided with a screw through hole for a screw to pass through to fix the high-voltage connecting seat, the transition position of the screw through hole and the insertion hole forms a stop step, and a stop plate for stopping and limiting the elastic piece is arranged in the insertion hole at the stop step.
The beneficial effects are that: the high-voltage connecting seat is simple in a mode of fixing through the screw, and the stop plate is arranged in the stop step formed by the screw through hole and the inserting hole, so that the elastic part can be well stopped and limited.
Further, the high-pressure adapter includes the pull rod connector and with pull rod connector fixed connection's uide bushing, the pull rod connector is the same with the structure of low pressure adapter, the uide bushing constitutes the direction plug-in post.
The beneficial effects are that: the high-voltage adapter is divided into the pull rod connector and the guide sleeve, so that the high-voltage adapter can be conveniently processed, the pull rod connector is identical to the low-voltage adapter in structure, replacement can be performed, and the processing cost is reduced.
Furthermore, the barrel includes two barrel units that set up along the fore-and-aft direction components of a whole that can function independently, and the hookup location of two barrel units corresponds with the position of adaptation grafting structure in the barrel footpath.
The beneficial effects are that: the barrel is arranged into a split structure, the connecting positions of the two barrel units correspond to the positions of the adaptive plug-in structures, the plug-in positions can be observed when the plug-in structures are plugged with the adaptive plug-in structures, and the plug-in structures and the adaptive plug-in structures are guaranteed to be plugged smoothly.
Further, the barrel has the end cover, the low pressure connecting seat includes end cover connecting plate, joint connecting plate and intermediate junction spare, and intermediate junction spare is connected in order to form the I shape structure between end cover connecting plate and the joint connecting plate, and the end cover connecting plate is fixed on the end cover, be equipped with double-screw bolt or screw hole on the low pressure adapter, the low pressure adapter passes through double-screw bolt or screw hole and fixes on the joint connecting plate, still be equipped with on the joint connecting plate and be used for carrying out shielded low pressure shield cover to the hookup location of low pressure adapter and insulating pull rod.
The beneficial effects are that: the low-voltage connecting base is designed into an I-shaped structure, so that the low-voltage connecting base is conveniently connected with the barrel end cover and the low-voltage adapter, and the low-voltage shielding cover is fixedly arranged on the joint connecting plate, so that the volume of the low-voltage shielding cover can be reduced, and the manufacturing cost of the low-voltage shielding cover is saved.
Furthermore, the space that low pressure shield cover encloses can supply the low pressure adapter to insert along the barrel axial.
The beneficial effects are that: when making low pressure adapter and low pressure connecting seat assemble, need not dismantle the low pressure shield cover, improved the assembly efficiency of insulating pull rod.
Further, the elastic part is a pressure spring.
The beneficial effects are that: the pressure spring is a standard part, is convenient to obtain and has lower cost.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of a single insulated pull rod test apparatus for GIS according to the present invention;
FIG. 2 is a schematic structural diagram of a single insulation pull rod test tool for the GIS in FIG. 1;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 2;
in the figure: 101-a pressure applying device; 102-a single insulation pull rod test tool for the GIS; 1-a cartridge unit; 2-a flange; 3-air charge and discharge ports; 4-a pin shaft; 5-end cover; 6-end cover connecting plate; 7-a connecting plate; 8-a joint connection plate; 9-a low-voltage adapter; 10-low voltage shielding case; 11-an insulating tie rod; 12-a first screw; 13-an insulating basin; 14-a guide sleeve; 15-pressure spring; 16-a stop plate; 17-a high-voltage connecting seat; 18-a second screw; 19-an adapter; 20-long holes; 21-tie rod connector.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
as shown in figure 1, the single insulation pull rod test equipment for the GIS comprises a pressure device 101 and a single insulation pull rod test tool 102 for the GIS, wherein the single insulation pull rod test tool 102 for the GIS is installed on the pressure device 101. as shown in figure 2, the single insulation pull rod test tool 102 for the GIS comprises a cylinder body, the cylinder body extends in the front-back direction, the rear end of the cylinder body is fixedly connected with an end cover 5 through a bolt, and the front end of the cylinder body is fixedly assembled on an insulation basin 13 of the pressure device. The inside low pressure connecting seat and the high pressure connecting seat that are equipped with of barrel are arranged along fore-and-aft direction interval to make insulating pull rod 11 install between two connecting seats. Wherein, the low pressure connecting seat sets firmly on end cover 5, and the high pressure connecting seat is used for fixed assembly on insulating basin 13, and the metal insert on insulating basin 13 is connected with pressure device's high-pressure output.
As shown in fig. 2 and 4, the low-pressure connecting socket includes a joint connecting plate 8, an end cover connecting plate 6, and an intermediate connecting plate 7 connecting the joint connecting plate 8 and the end cover connecting plate 6, the intermediate connecting plate 7 constituting an intermediate connecting member. The joint connecting plate 8, the end cover connecting plate 6 and the connecting plate 7 are welded and formed and are in an I-shaped structure. It should be noted that the configuration of the low pressure connection socket may be adapted as desired.
Specifically, the end cover connecting plate 6 is fixedly installed on the end cover 5 of the barrel through a screw, a threaded hole is formed in the joint connecting plate 8, a stud is arranged on the low-voltage adapter 9, the stud is connected in the threaded hole in a threaded mode to achieve fixed connection of the low-voltage adapter 9 and the joint connecting plate 8, the front portion of the low-voltage adapter 9 is of a U-shaped structure, pull rod connecting holes are formed in two parallel plates of the U-shaped structure, and the pin shaft 4 penetrates through the pull rod connecting holes and penetrates through the mounting holes in the insulating pull rod 11 to achieve connection of the low-voltage. In other embodiments, a threaded hole is formed in the low-voltage adapter, a stud is arranged on the joint connecting plate, and the stud is in threaded connection with the threaded hole to realize fixed connection between the low-voltage adapter and the joint connecting plate.
Wherein, still set firmly on the joint connecting plate 8 and be used for carrying out the low pressure shield cover 10 that shields to the hookup location of low pressure adapter 9 and insulating pull rod 11, design the low pressure connecting seat into I shape structure, the low pressure connecting seat of being convenient for is connected with barrel end cover 5, low pressure adapter 9, and low pressure shield cover 10 sets firmly on joint connecting plate 8 in addition, can reduce the volume of low pressure shield cover 10, saves the cost of manufacture of low pressure shield cover 10.
In this embodiment, the space that low pressure shield cover 10 encloses can supply low pressure adapter 9 to insert along the barrel axial, when making low pressure adapter 9 and joint connecting plate 8 assembly, need not dismantle low pressure shield cover 10, has improved the assembly efficiency of insulating pull rod 11. In other implementations, the volume of low pressure adapter is great, and the low pressure adapter can not follow in the barrel axial inserts the low pressure shield cover, need pull down the low pressure shield cover this moment, just can fix the low pressure adapter on the joint connecting plate.
As shown in fig. 2 and 3, an adapter 19 is fixedly arranged on the basin-shaped insulator 13, the high-voltage connecting base 17 is fixed on the adapter 19 through a screw, the adapter 19 is arranged on the front side of the high-voltage connecting base 17, and the plug hole is arranged on the high-voltage connecting base 17. Specifically, the adapter 19 is provided with a long hole 20, the long hole 20 extends in the front-back direction, and the adapter 19 is fixedly assembled on the insulating basin 13 through a first screw 12 penetrating into the long hole 20.
The central position department of high pressure connecting seat 17 is equipped with along the spliced eye and the screw perforation of barrel axial extension, and the spliced eye constitutes grafting structure, and the spliced eye sets up with the screw perforation is coaxial, and the spliced eye is in the rear side of screw perforation, and the screw perforation is in the hole bottom of spliced eye promptly. A second screw 18 penetrates through the screw through hole to realize the fixed connection of the adapter seat 19 and the high-voltage connecting seat 17, a step structure is arranged between the rear end of the screw through hole and the front end of the plug hole, and a stop plate 16 is arranged at the step structure and used for stopping and limiting the pressure spring 15. It should be noted that the adapter 19 and the high voltage connection socket 17 are both electrical conductors.
In this embodiment, the front end of the insulating pull rod 11 is connected to the high-voltage adapter through the pin 4, the high-voltage adapter includes a pull rod connector 21 and a guide sleeve 14, the pull rod connector 21 is located at the rear side of the guide sleeve 14, and the pull rod connector 21 is in threaded connection with the guide sleeve 14. It should be noted that the structure of the tie rod coupling 21 is the same as that of the low-voltage adapter 9, and the guide sleeve 14 constitutes a guide plug. A compression spring 15 is arranged between the guide sleeve 14 and the stop plate 16, and the compression spring 15 is used for applying an elastic acting force opposite to the insertion direction of the guide sleeve 14 to the guide sleeve 14 so as to ensure the stability of the guide sleeve 14. Wherein the pressure spring 15 constitutes an elastic element. Of course, in other embodiments, the elastic member may be a rubber block; it may also be a leaf spring of a sheet-like bent structure, for example a leaf spring bent in a V-shape. It should be noted that the high-voltage adapter, the compression spring 15, and the stopper plate 16 are all conductive bodies.
In this embodiment, the inserting hole is a stepped hole, and the inserting hole includes a large diameter section and a small diameter section, and the large diameter section is located on the front side of the small diameter section. The pressure spring 15 sets up in the path section, and the front end of path section and the fenestrate rear end of screw form stair structure leaves the clearance along the barrel is radial between path section and the pull rod connector 21, makes path section as the high pressure shield cover with the shield insulation pull rod 11 and the hookup location of high-pressure adapter.
As shown in fig. 2, the barrel comprises two barrel units 1 which are arranged in a split manner along the front and back direction, the connecting positions of the two barrel units 1 correspond to the orifices of the inserting holes in the radial direction of the barrel, the barrel is arranged into a split structure, and the connecting positions of the two barrel units correspond to the orifices of the inserting holes, so that the position of the high-pressure adapter can be observed when the high-pressure adapter is inserted into the inserting holes, and the high-pressure adapter can be smoothly inserted into the inserting holes. Specifically, the looks remote site of two barrel units 1 all is equipped with flange 2, and two barrel units 1 are through the sealed fixed connection of flange 2 in order to form the barrel, sets up flange 2 through the butt joint end at two barrel units 1, the connection of two barrel units 1 of not only being convenient for, flange 2 also is favorable to two barrel units 1 to realize sealedly moreover. In other embodiments, an anchor ear may be disposed at a position where the two cylinder units are connected, and a sealing member is disposed on an inner side surface of the anchor ear to realize the sealed and fixed connection of the two cylinder units.
In this embodiment, one of the cylinder units 1 is provided with an inflation/deflation port 3 for inflating the cylinder and deflating the cylinder.
The single insulation pull rod test equipment for the GIS in the embodiment is used for the electrical test of the single insulation pull rod. During assembly, the adapter 19 is firstly installed on the insulating basin 13, the high-voltage connecting seat 17 is installed on the adapter 19, the barrel unit 1 in the front is fixedly assembled on the insulating basin 13 through bolts, and then the stop plate 16 and the pressure spring 15 are sequentially placed in the inserting holes. Install the low pressure connecting seat on end cover 5 to install low pressure shield cover 10 on joint connection board 8, later fix the rear end of insulating pull rod 11 on low pressure adapter 9 through round pin axle 4, the front end of insulating pull rod 11 is through round pin axle 4 fixed connection on high-pressure adapter, and make low pressure adapter 9 threaded connection on joint connection board 8, then with the fixed assembly of barrel unit 1 at rear portion on end cover 5. And finally, the rear barrel unit 1 and the front barrel unit 1 are fixedly assembled in a sealing mode through the flange 2, the high-pressure adapter is aligned to the plug hole in the high-pressure connecting seat 17 and inserted into the plug hole, and the pressure spring 15 is arranged in the plug hole and can be pushed against the high-pressure adapter to ensure the stability of the high-pressure adapter. After the completion of the assembly, the insulating tub 13 is fixedly assembled to the pressing device 102 by bolts to perform an insulation test of the insulating rod 11.
It should be noted that, the insulating basin 13 in this embodiment belongs to a part of the pressure applying device 102, and the insulating basin 13 may be taken off from the pressure applying device 102, then the single insulating pull rod test fixture 101 for the GIS is mounted on the insulating basin 13, and finally the insulating basin 13 and the single insulating pull rod test fixture are mounted on the pressure applying device 102; the insulation basin 13 can also be directly assembled on the insulation basin 13 by the single insulation pull rod test tool 101 for the GIS without taking the insulation basin 13 off the pressing device 102. Wherein the pressure applicator 102 is of the prior art. In other embodiments, the single insulation pull rod test tool for the GIS may include an insulation cover plate, such as an insulation basin, disposed at one end of the cylinder, so that the cylinder of the single insulation pull rod test tool for the GIS forms a closed structure, and at this time, a cable or a conductive bar is led out from the insulation cover plate to be electrically connected to the pressure applying device.
The GIS single-insulation pull rod test tool has the advantages of small number of parts, simplicity and convenience in installation and short gas treatment period, solves the problem that the test in a pull rod factory can only be carried out on a product to a great extent, and provides guarantee for accurately testing the quality of the pull rod, preventing the occurrence of subsequent product state discharge accidents and ensuring the quality of the product.
the difference with embodiment 1 lies in, low pressure adapter and low pressure connecting seat grafting assembly, high pressure adapter and high-pressure connecting seat threaded connection. At this time, the front end of the insulating pull rod needs to be fixed on the high-voltage adapter.
the difference with embodiment 1 lies in, under the less condition in the radial clearance of barrel between high-pressure adapter and the spliced eye, can not set up the pressure spring, be equipped with on one of them finger that touches of high-pressure adapter and spliced eye to guarantee that the contact of high-pressure adapter and high-pressure connecting seat is stable.
the difference from embodiment 1 is that the diameter of the insertion hole is consistent in the front-rear direction, and in this case, a separate high-voltage shielding cover needs to be disposed outside the mounting seat to shield the front end of the insulating pull rod.
Embodiment 5 of the single insulated tension rod test equipment for GIS of the present invention:
the difference with embodiment 1 lies in that, high-pressure connecting seat structure as an organic whole, for the convenience high-pressure connecting seat fixes on insulating basin, can set up the flange on high-pressure connecting seat, and high-pressure connecting seat passes through flange fixed connection on basin formula insulator. At the moment, the high-voltage connecting seat does not need to be provided with a screw hole.
the difference from the embodiment 1 is that a stop plate may not be arranged in the inserting hole, and at this time, the front end of the pressure spring pushes against the step of the screw through hole, so that a longer pressure spring is required to meet the requirement of elastic pushing. Of course, in other embodiments, a stop plate may not be disposed in the insertion hole, and the diameter of the pressure spring needs to be larger.
the difference from embodiment 1 is that the high-voltage adapter is an integrated structure.
the difference with embodiment 1 lies in that the barrel is integrative structure, can set up the hand hole on the barrel this moment to observe the high-pressure adapter and the spliced eye condition of pegging graft. In other embodiments, the barrel can be an organic whole structure, does not set up the hand hole on the barrel this moment, under the condition that machining precision satisfies, makes two barrel units adjust well earlier, and the high-pressure adapter of insulating pull rod front end and the position of spliced eye should also be correct this moment, can realize the grafting assembly of high-pressure adapter and spliced eye under the condition of not observing.
the difference from embodiment 1 is that the rear end of the low-pressure shield case is fixedly fitted to the end cap, and the low-pressure shield case is large in size.
In the specific embodiment of the single insulation pull rod test tool for the GIS, the structure of the single insulation pull rod test tool for the GIS in the embodiment is the same as that of any one of the single insulation pull rod test tools for the GIS in embodiments 1 to 9 of the single insulation pull rod test equipment for the GIS, and details are not repeated herein.
Claims (10)
- GIS is with experimental frock of single insulating pull rod, includes:the device comprises a cylinder body, a test device and a test device, wherein a single insulating pull rod to be tested is arranged in the cylinder body, and a high-voltage connecting seat and a low-voltage connecting seat are respectively arranged at two axial ends of the cylinder body;the high-voltage connecting seat is used for connecting a high-voltage output end of the pressure device and is in conductive connection with one end of the insulating pull rod;the low-voltage connecting seat is used for grounding and is in conductive connection with the other end of the insulating pull rod;the GIS single-insulation pull rod test tool is characterized by further comprising two adapters, wherein the two adapters are respectively a low-voltage adapter and a high-voltage adapter, the low-voltage adapter is used for being electrically connected to a low-voltage connecting seat, and the high-voltage adapter is used for being electrically connected to a high-voltage connecting seat;the two adapter connectors are respectively provided with a pull rod connecting hole, and a pin penetrates through the pull rod connecting holes, so that the adapter connectors are connected into the pin holes at the corresponding ends of the insulating pull rods through pins;one of the two adapters is provided with a stud or a threaded hole so as to be fixed on the corresponding low-voltage connecting seat or the corresponding high-voltage connecting seat through the stud or the threaded hole;and the other one of the two adapters is provided with a plug-in structure, and the corresponding low-voltage connecting seat or the high-voltage connecting seat is provided with an adaptive plug-in structure which is in plug-in fit with the plug-in structure.
- 2. The GIS single insulation pull rod test tool according to claim 1, wherein the adaptive plug structure is a plug hole extending along the axial direction of the cylinder, the plug structure is a guide plug column, the plug hole is in guide plug fit with the guide plug column, and an elastic member is installed in the plug hole and used for applying an elastic acting force opposite to the plug direction of the guide plug column to the guide plug column.
- 3. The GIS of claim 2, wherein the high-voltage connecting base is provided with the inserting hole, the inserting hole is a stepped hole and comprises a large-diameter section and a small-diameter section, the elastic part is arranged in the small-diameter section, the guide inserting column penetrates through the large-diameter section and is assembled in the small-diameter section in a guide mode, and the large-diameter section is used for shielding the connecting position of the insulating pull rod and the high-voltage adapter.
- 4. The GIS single-insulation pull rod test tool according to claim 2, wherein a screw through hole is formed in the bottom of the plug hole, a screw penetrates through the screw through hole to fix the high-voltage connecting base, a stop step is formed at the transition position of the screw through hole and the plug hole, and a stop plate for stopping and limiting the elastic piece is arranged in the plug hole at the stop step.
- 5. The GIS of claim 3 or 4 is with experimental frock of single insulating pull rod, characterized in that, high-voltage adapter includes the pull rod connector and with pull rod connector fixed connection's uide bushing, the pull rod connector is the same with low-voltage adapter's structure, the uide bushing constitute the direction plug-in post.
- 6. The GIS single-insulation-pull-rod test tool according to any one of claims 1 to 4, wherein the cylinder comprises two cylinder units which are arranged in a split manner in the front-back direction, and the connection positions of the two cylinder units correspond to the positions of the adaptive plug-in structures in the radial direction of the cylinder.
- 7. The GIS of any one of claims 1-4 is with experimental frock of single insulating pull rod, its characterized in that, the barrel has the end cover, the low pressure connecting seat includes end cover connecting plate, joint connecting plate and intermediate junction spare, and intermediate junction spare is connected between end cover connecting plate and joint connecting plate in order to form the I shape structure, and the end cover connecting plate is fixed on the end cover, is equipped with double-screw bolt or screw hole on the low pressure adapter, and the low pressure adapter passes through double-screw bolt or screw hole to be fixed to the joint connecting plate on, still be equipped with the low pressure shield cover that is used for shielding low pressure adapter and insulating pull rod's hookup location on the joint connecting plate.
- 8. The GIS single insulation pull rod test tool according to claim 7, wherein the space surrounded by the low-voltage shielding cover is used for the low-voltage adapter to be inserted in the axial direction of the cylinder.
- 9. The GIS single insulation pull rod test tool according to any one of claims 2 to 4, wherein the elastic member is a compression spring.
- The single insulated pull rod test equipment for the GIS comprises a pressure device and a single insulated pull rod test tool for the GIS, wherein the single insulated pull rod test tool for the GIS is arranged on the pressure device, and is characterized in that the single insulated pull rod test tool for the GIS is the single insulated pull rod test tool for the GIS according to any one of claims 1 to 9.
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| CN201911320395.2A CN113009190B (en) | 2019-12-19 | 2019-12-19 | Single-branch insulation pull rod test tool and test equipment for GIS |
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| CN201911320395.2A CN113009190B (en) | 2019-12-19 | 2019-12-19 | Single-branch insulation pull rod test tool and test equipment for GIS |
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| CN113009190A true CN113009190A (en) | 2021-06-22 |
| CN113009190B CN113009190B (en) | 2024-04-05 |
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