CN220650805U - Multi-station power frequency withstand voltage and partial discharge test fixture - Google Patents
Multi-station power frequency withstand voltage and partial discharge test fixture Download PDFInfo
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- CN220650805U CN220650805U CN202321856200.8U CN202321856200U CN220650805U CN 220650805 U CN220650805 U CN 220650805U CN 202321856200 U CN202321856200 U CN 202321856200U CN 220650805 U CN220650805 U CN 220650805U
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- 238000012360 testing method Methods 0.000 title claims abstract description 75
- 239000000523 sample Substances 0.000 claims abstract description 218
- 230000000712 assembly Effects 0.000 claims abstract description 37
- 238000000429 assembly Methods 0.000 claims abstract description 37
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002950 deficient Effects 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 10
- 239000004020 conductor Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of electrical equipment, in particular to a multi-station power frequency withstand voltage and partial discharge testing tool, which comprises a base and a probe moving device, wherein a plurality of workpiece mounting holes are formed in the base; each ground probe assembly is insulated from other ground probe assemblies, so that any ground probe assembly is prevented from affecting the test result of a workpiece connected with other ground probe assemblies. The multiple workpiece mounting holes and the corresponding grounding probe assemblies are arranged, multiple workpieces can be placed on the base for simultaneous testing, the number of the workpieces subjected to single testing is increased, the efficiency of workpiece testing is improved, the grounding probe assemblies are mutually insulated, when a product is bad, point-to-point signal sampling testing can be performed on each workpiece, defective products can be found out from the multiple workpieces subjected to simultaneous testing, and the operation is simple.
Description
Technical Field
The utility model relates to the technical field of electrical equipment, in particular to a multi-station power frequency voltage withstanding and partial discharge testing tool.
Background
When the existing insulating product is subjected to power frequency withstand voltage and partial discharge test, a conductor part (positioned at the top of the workpiece) of the product (workpiece) is connected with a high-voltage end, and a shielding mesh needle (positioned at the side surface of the workpiece) of the product (workpiece) is grounded. And after the test is finished, the high-voltage end and the grounding wire are taken off from the workpiece. But testing only one workpiece at a time is inefficient.
Disclosure of Invention
The utility model aims to provide a multi-station power frequency withstand voltage and partial discharge testing tool, which solves the problems that only one workpiece can be tested at a time and the efficiency is low.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the multi-station power frequency withstand voltage and partial discharge testing tool comprises a base and a probe moving device arranged on the base, wherein a plurality of workpiece mounting holes for mounting workpieces are formed in the base, the probe moving device is arranged on one side of each workpiece mounting hole, a plurality of grounding probe assemblies are arranged on the probe moving device, each workpiece mounting hole is correspondingly provided with one grounding probe assembly, and the probe moving device is used for driving the plurality of grounding probe assemblies to reciprocate so as to switch between a testing position and a standby position;
when the grounding probe assembly is positioned at the testing position, the grounding probe assembly is used for being inserted into a workpiece to enable the workpiece to be grounded so as to perform power frequency withstand voltage and partial discharge testing of the workpiece; when the grounding probe assembly is positioned at the standby position, the grounding probe assembly is used for being separated from the workpiece;
each ground probe assembly is insulated from each other, so that any ground probe assembly is prevented from affecting the test result of a workpiece connected with other ground probe assemblies;
the device comprises a multichannel digital partial discharge comprehensive analyzer, a local discharge signal multiplexer and a multichannel digital partial discharge comprehensive analyzer, wherein the multichannel digital partial discharge comprehensive analyzer is electrically connected with the multichannel digital partial discharge comprehensive analyzer, the local discharge signal multiplexer is provided with a plurality of grounding ports and a plurality of control buttons, the grounding ports are in one-to-one correspondence with the control buttons, each grounding probe assembly is electrically connected with one grounding port, and the local discharge signal multiplexer controls at least one grounding probe assembly to be electrically connected with the multichannel digital partial discharge comprehensive analyzer through the control buttons, so that a workpiece connected with the grounding probe assembly is electrically connected with the multichannel digital partial discharge comprehensive analyzer, and the test result of the workpiece is displayed on the multichannel digital partial discharge comprehensive analyzer.
A plurality of workpiece mounting holes are formed in the base, and a plurality of grounding probe assemblies are correspondingly arranged, so that a plurality of workpieces can be placed on the base for simultaneous testing, the number of the workpieces subjected to single testing is increased, and the efficiency of workpiece testing is improved. In addition, each ground probe assembly is insulated so that the test results of the multiple workpieces tested simultaneously do not affect each other.
In one embodiment, the probe moving device comprises a probe mounting part and a driving part for driving the probe mounting part to move, wherein the probe mounting part is used for mounting the grounding probe assembly, the driving part enables the probe mounting part to do linear reciprocating motion and drives the grounding probe assembly to do linear reciprocating motion, and the grounding probe assembly is switched between a testing position and a standby position.
In one embodiment, the probe mounting piece is a mounting plate arranged at one side of the workpiece mounting hole, a plurality of workpiece mounting holes are formed in one side of the mounting plate, a plurality of probe mounting holes are formed in the mounting plate, an insulating ring is arranged in each probe mounting hole, the grounding probe assembly is fixed in the probe mounting hole through the insulating ring, and the grounding probe assembly protrudes towards one side of the mounting plate, which is close to the workpiece mounting hole; the driving piece is arranged on one side of the mounting plate far away from the workpiece mounting hole.
In one embodiment, the driving member is a push-pull type quick clamp, the movement direction of the push-pull type quick clamp is perpendicular to the length direction of the mounting plate, and two push-pull type quick clamps are arranged along the length direction of the mounting plate.
In one embodiment, the ground probe assembly is resiliently mounted to the workpiece.
In one embodiment, the ground probe assembly includes a first probe and a second probe, the first probe is used for being connected with a ground wire, the second probe is used for being spliced with a workpiece, and the ground probe assembly has an elastic compression structure, when the second probe is spliced with the workpiece, the elastic compression structure compresses the second probe on the workpiece, so that elastic splicing between the ground probe assembly and the workpiece is realized.
In one embodiment, the elastic pressing structure is an elastic piece arranged between the insulating ring and the second probe, and the elastic piece is respectively connected with the insulating ring and the second probe and used for pressing the second probe on the workpiece.
In one embodiment, the base is a plate and the workpiece mounting holes are through holes extending through the plate.
In one embodiment, the workpiece mounting holes are distributed in two rows on the plate, and the ground probe assemblies are distributed in two rows outside each row of workpiece mounting holes.
The utility model has the following beneficial effects:
1. a plurality of workpiece mounting holes are formed in the base, a plurality of grounding probe assemblies are arranged, a plurality of workpieces are mounted in the workpiece mounting holes, each grounding probe assembly is connected with the workpiece in an inserting mode for testing, the plurality of workpieces can be tested each time, and the testing efficiency of the workpieces is improved.
2. The plurality of ground probe assemblies are arranged on the same mounting plate, and the push-pull type quick clamp drives the ground probe assemblies to reciprocate, so that the ground probe assemblies are switched between a test position and a standby position, and compared with the prior art, each time the ground probe assemblies are tested, each workpiece is connected with a ground wire, the ground probe assemblies connected with the ground wire move by virtue of the push-pull type quick clamp, the connection efficiency of the ground wires and the workpieces is improved, and the test efficiency of the workpieces is further improved.
3. The grounding probe assembly is provided with the elastic piece, so that the first probe is connected with a workpiece more reliably, and the testing accuracy is improved.
4. The grounding end of each workpiece is separated by the insulating ring, a plurality of workpieces can be selected to be tested simultaneously through the partial discharge signal multiplexer, one workpiece can be selected to be tested independently, a test result is displayed on the multi-channel digital partial discharge comprehensive analyzer, when the product is bad, the point-to-point signal sampling test can be carried out on each workpiece, so that defective products can be found out from the plurality of workpieces which are tested simultaneously, and the operation is simple.
Drawings
FIG. 1 is a schematic view of a portion of one embodiment of the present utility model;
FIG. 2 is a schematic view of a portion of the structure of the present utility model in use;
FIG. 3 is a schematic view of the use of the present utility model;
wherein: 1 base, 11 work piece mounting holes, 2 probe mobile device, 21 probe mounting piece, 22 driving piece, 3 ground probe subassembly, 31 first probe, 32 second probe, 4 insulating ring, 5 partial discharge signal multiplexer, 51 control button, 6 multichannel digital partial discharge integrated analyzer, 61 first display interface, 62 second display interface, 7 high voltage connector, 100 work pieces, 101 ground terminal.
Detailed Description
For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.
Referring to fig. 1-3, as an embodiment of the present utility model, a multi-station power frequency withstand voltage and partial discharge test fixture is provided, which includes a base 1, and a probe moving device 2 disposed on the base, wherein a plurality of workpiece mounting holes 11 are formed in the base 1, the probe moving device 2 is disposed on one side of the workpiece mounting holes 11, a plurality of grounding probe assemblies 3 are disposed on the probe moving device 2, each workpiece mounting hole 11 is correspondingly provided with a grounding probe assembly 3, and the probe moving device 2 is used for driving the plurality of grounding probe assemblies 3 to reciprocate so as to switch between a test position and a standby position. When the grounding probe assembly 3 is positioned at the testing position, the grounding probe assembly 3 is used for being inserted into a workpiece to enable the workpiece to be grounded so as to perform power frequency withstand voltage and partial discharge testing of the workpiece; when the ground probe assembly 3 is in the standby position, the ground probe assembly 3 is configured to disengage from the workpiece. Each of the ground probe assemblies 3 is insulated from each other, so that any one ground probe assembly is prevented from affecting the test results of the work pieces connected to the other ground probe assemblies 3.
The base 1 is provided with a plurality of workpiece mounting holes 11 for mounting workpieces, and a plurality of grounding probe assemblies are correspondingly arranged, so that a plurality of workpieces can be placed on the base 1 and fixed in the workpiece mounting holes 11, and meanwhile, the workpieces placed on the base 1 are tested, the number of the workpieces subjected to single test is increased, and the efficiency of workpiece test is improved. In addition, each ground probe assembly is insulated so that the test results of the multiple workpieces tested simultaneously do not affect each other.
The susceptor 1 is a flat plate, and the workpiece mounting hole 11 is a through hole penetrating the flat plate. The plurality of workpiece mounting holes 11 are distributed on the flat plate in two rows, and the two rows of workpiece mounting holes 11 are arranged in a linear parallel manner. Accordingly, the ground probe assemblies 3 are distributed in two rows on the outer side of each row of the workpiece mounting holes 11, and the arrangement direction of the ground probe assemblies 3 is parallel to the arrangement direction of the workpiece mounting holes 11.
The probe moving device 2 comprises a probe mounting piece 21 and a driving piece 22 for driving the probe mounting piece 21 to move, the probe mounting piece 21 is used for mounting the grounding probe assembly 3, the driving piece 22 enables the probe mounting piece 21 to do linear reciprocating motion and drives the grounding probe assembly 3 to do linear reciprocating motion, and the grounding probe assembly 3 is switched between a testing position and a standby position. In this example, the probe mounting member 21 is a long mounting plate provided on one side of the workpiece mounting hole 11, and in order to make the arrangement direction of the ground probe assemblies parallel to the arrangement direction of the workpiece mounting hole 11, the extending direction of the long mounting plate is parallel to the arrangement direction of the workpiece mounting hole 11, and the workpiece mounting hole 11 corresponding to the ground probe assemblies on the same mounting plate is located on one side of the mounting plate. A plurality of probe mounting holes are formed in the metal mounting plate, test signals of each workpiece are separated in order to insulate each grounding probe assembly, an insulating ring 4 is arranged in each probe mounting hole, the grounding probe assemblies 3 are fixed in the probe mounting holes through the insulating rings 4, the grounding probe assemblies 3 protrude to one side of the mounting plate, which is close to the workpiece mounting holes 11, and the protruding end portions are used for being spliced with the workpieces. The driving piece 22 and the protruding end of the ground probe assembly 3 are respectively arranged at the opposite sides of the mounting plate, namely, the driving piece 22 is arranged at one side of the mounting plate far away from the workpiece mounting hole, so that the driving piece 22 can drive the ground probe assembly 3 to move without affecting the insertion connection of the ground probe assembly 3 and the workpiece.
In other embodiments, the mounting plate is made of an insulating material to insulate each ground probe assembly from the other, and an insulating ring can be omitted to make the structure simpler.
In other embodiments, the probe mounting member 21 is not limited to a strip-shaped mounting plate, but may be a plurality of mounting blocks, each mounting block is provided with at least one ground probe assembly 3, and a driving member drives at least two mounting blocks to move, so that one driving member drives at least two ground probe assemblies 3 to move, and at least two ground probe assemblies 3 are simultaneously plugged with workpieces, so that at least two workpieces can be tested at one time.
In other embodiments, the extending direction of the elongated mounting plate is not limited to be parallel to the arrangement direction of the workpiece mounting holes 11, and the extending direction of the elongated mounting plate may be arc-shaped, so long as the arrangement direction of the protruding end portions of the ground probe assemblies 3 disposed on the same mounting plate can be controlled to be parallel to the arrangement direction of the workpiece mounting holes 11, and thus the ground probe assemblies 3 moving simultaneously can be controlled to be simultaneously inserted into the workpiece, so as to ensure that the protruding end portions of the ground probe assemblies 3 are reliably connected to the workpiece.
Referring to fig. 1-3, in one embodiment, the driving member is a push-pull type quick clamp, and the direction of movement of the push-pull type quick clamp is perpendicular to the length direction of the mounting plate. Because the mounting plate is longer, so along the length direction of mounting plate, be provided with two push-and-pull quick tongs, guarantee that the ground probe subassembly 3 that sets up on same mounting plate is reliably connected with the work piece. The push-pull type quick clamp is used, on one hand, the operation is simple and quick, and on the other hand, the push-pull type quick clamp has a locking function, so that the contact between the grounding probe assembly 3 and a workpiece is more reliable. In other embodiments, the driving member may be a rack and pinion mechanism or a screw nut mechanism, where the movement direction of the rack or screw is the same as that of the push-pull type quick clamp, and the movement stroke of the rack and pinion mechanism and the screw nut mechanism is easier to control relative to the push-pull type quick clamp, so as to adjust the position of the ground probe assembly 3 according to workpieces with different sizes.
Referring to fig. 1-3, the ground probe assembly 3 is resiliently inserted into the workpiece. The grounding probe assembly 3 comprises a first probe 31 and a second probe 32, wherein the first probe 31 and the second probe 32 are made of conductive materials, the first probe 31 is used for being connected with a ground wire, and the second probe 32 is used for being spliced with a workpiece so as to ground the workpiece 100. The second probe 32 penetrates through the mounting plate, and one end of the second probe 32 protrudes towards one side of the probe mounting piece 21, which is close to the workpiece mounting hole 11, so as to form a protruding part of the grounding probe assembly 3, wherein the protruding part is the end part of the second probe 32, the end part of the second probe 32 is used for being inserted into the grounding end 101 of the workpiece 100, and the grounding end is a shielding mesh needle of a product. The other end of the second probe 32 is connected to the first probe 31, thereby forming electrical connection of the first probe 31 and the second probe 32, and the first probe 31 and the second probe 32 are respectively located at both sides of the mounting board.
The ground probe assembly 3 has an elastic pressing structure that presses the second probe 32 against the workpiece when the second probe 32 is inserted into the workpiece, so that the end of the second probe 32 is electrically connected to the workpiece 100 reliably. The elastic pressing structure is an elastic member arranged between the insulating ring 4 and the second probe 32, and the elastic member is respectively connected with the insulating ring 4 and the second probe 32 and used for pressing the second probe 32 on the workpiece 100. In this example, the elastic member is a spring, and in other embodiments, the elastic member may be a spring plate with two ends respectively connected to the insulating ring and the second probe, or may be a silica gel ring sleeved between the second probe and the insulating ring. The second probe 32 of the ground probe assembly 3 is pressed against the ground end 101 of the workpiece 100 by the push-pull type quick clamp with locking function by setting the connection of the ground probe assembly 3 and the workpiece to be elastic connection, so that the ground probe assembly 3 and the workpiece 100 are reliably connected.
In one embodiment, the workpiece mounting holes 11 are provided with two rows, correspondingly, two mounting plates for fixing the ground probe assembly 3 are also provided, the two mounting plates are arranged at the outer sides of the two rows of workpiece mounting holes 11, the protruding end part of the ground probe assembly 3 for being spliced with a workpiece is arranged between the two mounting plates, namely the inner sides of the mounting plates, and the driving piece 22 is arranged at the outer side far away from the workpiece mounting holes 11.
Referring to fig. 1-3, the multi-station power frequency withstand voltage and partial discharge testing tool of the utility model further comprises a partial discharge signal multiplexer 5 and a multi-channel digital partial discharge comprehensive analyzer 6 which are electrically connected, wherein the partial discharge signal multiplexer 5 is provided with a plurality of grounding ports (not shown in the figure) and a plurality of control buttons 51, the grounding ports are positioned on the side face of the partial discharge signal multiplexer 5, and the control buttons 51 are arranged on the top of the partial discharge signal multiplexer 5. The grounding ports are in one-to-one correspondence with the control buttons 51, each grounding probe assembly 3 is electrically connected with one grounding port, the partial discharge signal multiplexer 5 controls at least one grounding probe assembly 3 to be electrically connected with the multichannel digital partial discharge comprehensive analyzer 6 through the control buttons 51, so that a workpiece 100 connected with the grounding probe assembly 3 is electrically connected with the multichannel digital partial discharge comprehensive analyzer 6, and the test result of the workpiece 100 is displayed on the multichannel digital partial discharge comprehensive analyzer 6. Because the ground probe assemblies 3 are mutually insulated, each ground probe assembly 3 can be independently and electrically connected with the multichannel digital partial discharge comprehensive analyzer 6, and when the local discharge signal multiplexer 5 controls all the ground probe assemblies to be electrically connected with the multichannel digital partial discharge comprehensive analyzer 6, all the workpieces 100 on the base can be tested simultaneously. The multi-channel digital partial discharge comprehensive analyzer 6 is provided with two display interfaces, a first display interface 61 is used for displaying test results of simultaneous testing of a plurality of workpieces 100, a second display interface 62 is used for displaying test results of one workpiece 100 in the plurality of workpieces 100 which are simultaneously tested, when the first display interface displays a poor test result, the two display interfaces are compared, and if the test results displayed by the first display interface 61 and the second display interface 62 are the same, the first display interface and the second display interface 62 indicate that the one workpiece 100 is a defective product in the workpieces which are simultaneously tested; when the first display interface displays a result of the qualified test, in order to save test time, each workpiece can be no longer tested individually and the plurality of workpieces tested simultaneously can be judged to be qualified.
Referring to fig. 1, the workflow of the present embodiment is as follows: referring to fig. 2, the workpiece 100 is placed in the workpiece mounting hole 11 on the base, and it should be noted that the grounding end 101 of the workpiece 100 corresponds to the end position of the grounding probe assembly 3 (in order to show the grounding end 101 of the workpiece 100 in the drawing, the grounding end 101 of one of the workpieces 100 is rotated to face the direction convenient for observation, in practice, the grounding end of the workpiece 100 faces the end of the nearest grounding probe assembly 3, the angle in the drawing is not visible), and the high-voltage connector 7 is electrically connected to the workpiece top end of the workpiece 100, in this example, the high-voltage connector 7 is a metal plate connected to a high-voltage wire, and in other embodiments, the high-voltage connector 7 may be a rod made of a conductive material connected to a high-voltage wire. The operation driving member 22 pushes the probe mounting member 21 in the direction of the workpiece mounting hole 11, and the end of the ground probe assembly 3 connected to the ground wire is inserted into and locked with the workpiece. The other end of the grounding probe assembly 3 is correspondingly connected with the grounding port of the partial discharge signal multiplexer 5 one by one, the top end of the workpiece is connected with high-voltage power to form an electric loop with the workpiece 100, so that the power frequency withstand voltage and partial discharge tests of all the workpieces on the base can be performed, and the test result is displayed on the multichannel digital partial discharge comprehensive analyzer 6. It should be noted that in the industrial frequency withstand voltage and partial discharge test of the existing epoxy insulator, the conductor part of the workpiece is connected with the high voltage electricity through the metal plate, the tool is used for quickly connecting a plurality of workpieces with the ground wire so as to test the plurality of workpieces at the same time, and the metal plate connected with the high voltage electricity is the same as the prior art, and the difference is only that the metal plate used by the tool is larger in size so as to cover at least two workpieces. In view of the positional errors of the top ends of the workpieces 100 and the metal plates, in order to ensure that each workpiece 100 is electrically connected reliably to the high voltage power supply, the metal plates cover only two workpieces, and if the positions of the top ends of the workpieces 100 and the metal plates are more accurate, it is ensured that the metal plates can form reliable electrical connection with each workpiece, and the metal plates can also cover more workpieces.
In order to further improve the test efficiency, in the conventional test, the partial discharge signal multiplexer 5 opens all channels, that is, all workpieces 100 are electrically connected with the multi-channel digital partial discharge comprehensive analyzer 6 through the ground probe assembly 3 and the partial discharge signal multiplexer 5, and the test result is displayed on the first display interface 61, so that a plurality of workpieces placed on the tool are tested at the same time, and if all the workpieces are qualified, the process is finished; if the batch of workpieces are bad, the control button 51 of the partial discharge signal multiplexer 5 controls the grounding probe assembly 3 connected with each grounding port to be sequentially and electrically connected with the multi-channel digital partial discharge comprehensive analyzer 6, so that each workpiece 100 is sequentially and electrically connected with the multi-channel digital partial discharge comprehensive analyzer 6, a single workpiece 100 is sequentially tested, the test result of the workpiece 100 electrically connected with the multi-channel digital partial discharge comprehensive analyzer 6 is displayed on the second display interface 62, if the result displayed on the second display interface 62 is different from the result displayed on the first display interface 61, the workpiece 100 is qualified, if the result displayed on the second display interface 62 is the same as the result displayed on the first display interface 61, the workpiece 100 is judged to be defective, and thus, the point-to-point signal test is carried out on each workpiece 100, and the defective product is selected.
While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. The multi-station power frequency withstand voltage and partial discharge testing tool is characterized by comprising a base and a probe moving device arranged on the base, wherein a plurality of workpiece mounting holes for mounting workpieces are formed in the base, the probe moving device is arranged on one side of each workpiece mounting hole, a plurality of grounding probe assemblies are arranged on the probe moving device, each workpiece mounting hole is correspondingly provided with one grounding probe assembly, and the probe moving device is used for driving the plurality of grounding probe assemblies to reciprocate so as to switch between a testing position and a standby position;
when the grounding probe assembly is positioned at the testing position, the grounding probe assembly is used for being inserted into a workpiece to enable the workpiece to be grounded so as to perform power frequency withstand voltage and partial discharge testing of the workpiece; when the grounding probe assembly is positioned at the standby position, the grounding probe assembly is used for being separated from the workpiece;
each ground probe assembly is insulated from each other, so that any ground probe assembly is prevented from affecting the test result of a workpiece connected with other ground probe assemblies;
the device comprises a multichannel digital partial discharge comprehensive analyzer, a local discharge signal multiplexer and a multichannel digital partial discharge comprehensive analyzer, wherein the multichannel digital partial discharge comprehensive analyzer is electrically connected with the multichannel digital partial discharge comprehensive analyzer, the local discharge signal multiplexer is provided with a plurality of grounding ports and a plurality of control buttons, the grounding ports are in one-to-one correspondence with the control buttons, each grounding probe assembly is electrically connected with one grounding port, and the local discharge signal multiplexer controls at least one grounding probe assembly to be electrically connected with the multichannel digital partial discharge comprehensive analyzer through the control buttons, so that a workpiece connected with the grounding probe assembly is electrically connected with the multichannel digital partial discharge comprehensive analyzer, and the test result of the workpiece is displayed on the multichannel digital partial discharge comprehensive analyzer.
2. The multi-station power frequency voltage withstand and partial discharge testing tool according to claim 1, wherein the probe moving device comprises a probe mounting piece and a driving piece for driving the probe mounting piece to move, the probe mounting piece is used for mounting the grounding probe assembly, the driving piece enables the probe mounting piece to do linear reciprocating motion, the grounding probe assembly is driven to do linear reciprocating motion, and the grounding probe assembly is switched between a testing position and a standby position.
3. The multi-station power frequency voltage withstand and partial discharge test fixture according to claim 2, wherein the probe mounting piece is a mounting plate arranged at one side of the workpiece mounting holes, a plurality of workpiece mounting holes are formed in one side of the mounting plate, a plurality of probe mounting holes are formed in the mounting plate, an insulating ring is arranged in each probe mounting hole, the grounding probe assembly is fixed in the probe mounting hole through the insulating ring, and the grounding probe assembly protrudes to one side of the mounting plate, which is close to the workpiece mounting hole; the driving piece is arranged on one side of the mounting plate far away from the workpiece mounting hole.
4. The multi-station power frequency voltage-withstanding and partial discharge testing tool according to claim 3, wherein the driving piece is a push-pull type quick clamp, the moving direction of the push-pull type quick clamp is perpendicular to the length direction of the mounting plate, and two push-pull type quick clamps are arranged along the length direction of the mounting plate.
5. The multi-station power frequency voltage withstanding and partial discharge testing tool according to claim 1, wherein the grounding probe assembly is elastically inserted into the workpiece.
6. The multi-station power frequency voltage withstanding and partial discharge testing tool according to claim 5, wherein the grounding probe assembly comprises a first probe and a second probe, the first probe is used for being connected with a ground wire, the second probe is used for being connected with a workpiece in an inserting mode, the grounding probe assembly is provided with an elastic pressing structure, and when the second probe is connected with the workpiece in an inserting mode, the elastic pressing structure presses the second probe on the workpiece, and therefore elastic inserting between the grounding probe assembly and the workpiece is achieved.
7. The multi-station power frequency voltage withstand and partial discharge test fixture according to claim 6, wherein the probe moving device comprises a probe mounting piece for mounting the grounding probe assembly, the probe mounting piece is provided with a plurality of probe mounting holes, an insulating ring is arranged in each probe mounting hole, and the grounding probe assembly is fixed in the probe mounting hole through the insulating ring; the elastic pressing structure is an elastic piece arranged between the insulating ring and the second probe, and the elastic piece is respectively connected with the insulating ring and the second probe and used for pressing the second probe on the workpiece.
8. The multi-station power frequency voltage withstanding and partial discharge testing tool according to claim 1, wherein the base is a flat plate, and the workpiece mounting hole is a through hole penetrating through the flat plate.
9. The multi-station power frequency voltage withstanding and partial discharge testing tool according to claim 8, wherein the workpiece mounting holes are distributed on the flat plate in two rows, and the grounding probe assemblies are distributed on the outer side of each row of workpiece mounting holes in two rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321856200.8U CN220650805U (en) | 2023-07-14 | 2023-07-14 | Multi-station power frequency withstand voltage and partial discharge test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321856200.8U CN220650805U (en) | 2023-07-14 | 2023-07-14 | Multi-station power frequency withstand voltage and partial discharge test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220650805U true CN220650805U (en) | 2024-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321856200.8U Active CN220650805U (en) | 2023-07-14 | 2023-07-14 | Multi-station power frequency withstand voltage and partial discharge test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220650805U (en) |
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2023
- 2023-07-14 CN CN202321856200.8U patent/CN220650805U/en active Active
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