CN220983350U - Test main clamp for comprehensive test platform of transformer - Google Patents
Test main clamp for comprehensive test platform of transformer Download PDFInfo
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- CN220983350U CN220983350U CN202322726984.9U CN202322726984U CN220983350U CN 220983350 U CN220983350 U CN 220983350U CN 202322726984 U CN202322726984 U CN 202322726984U CN 220983350 U CN220983350 U CN 220983350U
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- 238000012360 testing method Methods 0.000 title claims abstract description 139
- 238000004804 winding Methods 0.000 claims abstract description 69
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of transformers, in particular to a test main clamp for a comprehensive test platform of a transformer, which comprises a main body, wherein the whole main body is of a U-shaped structure, a three-phase port and a summarizing port are arranged on the upper part of the main body, a screw is arranged on the lower part of the main body, a test main line is connected into the main body, one end of the test main line is respectively connected into an A phase of a high-voltage winding, a medium-voltage winding and a low-voltage winding of the transformer correspondingly, and the other end of the test main line is respectively connected into a high-voltage winding, a medium-voltage winding and a low-voltage winding of a wiring operation platform correspondingly. In the test main clamp for the comprehensive test platform of the transformer, the test main line is connected into the test main clamp, one end of the test main line is connected into the A phase of the high-voltage winding, the medium-voltage winding and the low-voltage winding of the transformer, and the other end of the test main line is connected into the high-voltage winding, the medium-voltage winding and the low-voltage winding of the wiring operation platform, so that wiring is more convenient and safer, an access point can be accurately controlled, and the test accuracy is improved.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a test main clamp for a comprehensive test platform of a transformer.
Background
The transformer is used as an electric primary main device, and power failure electric test work needs to be carried out regularly according to the electric equipment overhaul test procedure, and because the transformer bushing leads are higher (particularly 220kV and above transformers), test projects are more and the wiring of each test project is different, the high-altitude operation vehicle needs to be used for frequently changing the test wiring at high positions for different test projects. The wiring time of the overhead working truck is about 3/5 of the total time of the high-voltage test of the transformer, and special personnel are required to monitor the overhead working truck. On one hand, the operation time at the high position is longer, so that the risks of high falling, induction and the like are increased. On the other hand, the manpower resources are not liberated, and the field work efficiency is not high.
The existing test master clips for transformer integrated test platforms typically place the transformer on a fixed table and then place various test equipment and wiring operations around it. This layout has the following problems: the occupied space is large, and a large laboratory or outdoor space is needed; the operation is inconvenient, and a tester needs to shuttle back and forth between equipment and wiring, so that the efficiency is affected; and the device is not safe enough to use because the tester may inadvertently touch some of the live terminals.
Disclosure of utility model
The utility model aims to provide a test main clamp for a comprehensive test platform of a transformer, which is used for solving the problems that the occupied space is large and a large laboratory or outdoor space is needed in the background technology; the operation is inconvenient, and a tester needs to shuttle back and forth between equipment and wiring, so that the efficiency is affected; and the device is not safe enough to use because the tester may inadvertently encounter some problems with live terminals.
In order to achieve the above purpose, the utility model provides a testing main clamp for a comprehensive test platform of a transformer, which comprises a main body, wherein the main body is of a U-shaped structure, a three-phase port and a summarizing port are arranged on the upper part of the main body, a screw is arranged on the lower part of the main body, a testing main line is connected into the main body, one end of the testing main line is respectively connected into an A phase of a high-voltage winding, a medium-voltage winding and a low-voltage winding of the transformer correspondingly, and the other end of the testing main line is connected into a high-voltage winding, a medium-voltage winding and a low-voltage winding of a wiring operation platform correspondingly.
Preferably, the body and the mating slave clip are placed together inside an aluminum alloy box.
Preferably, the main body is divided into a four-core test main clamp with a short circuit structure and a three-core test main clamp without a short circuit structure.
Preferably, the three-core test master clip is a high voltage winding test master clip.
Preferably, the four-core test main clamp is a middle-low voltage winding test main clamp and is used for shorting windings during a short-circuit test.
Preferably, an insulating protective layer is provided on the outside of the main body.
Preferably, the bottom of the main body is provided with a threaded hole, the outer wall of the screw rod is provided with external threads, and the screw rod is in threaded connection with the threaded hole.
Preferably, a pressure head is mounted on the top end of the screw.
Compared with the prior art, the utility model has the beneficial effects that:
In the test main clamp for the comprehensive test platform of the transformer, the test main line is connected into the test main clamp, one end of the test main line is connected into the A phase of the high-voltage winding, the medium-voltage winding and the low-voltage winding of the transformer, and the other end of the test main line is connected into the high-voltage winding, the medium-voltage winding and the low-voltage winding of the wiring operation platform, so that wiring is more convenient and safer, an access point can be accurately controlled, the test accuracy is improved, and the test main clamp is divided into a four-core test main clamp with a short circuit structure and a three-core test main clamp without a short circuit mechanism and is used for short circuit among windings during short circuit test, thereby improving the test reliability.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a second schematic diagram of the overall structure of the present utility model.
The meaning of each reference sign in the figure is:
4. Testing a main clamp; 41. a threaded hole; 5. a three-phase port; 6. a summary port; 7. a screw; 71. a pressure head.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a testing main clamp for a comprehensive test platform of a transformer, which is shown in fig. 1-2, and comprises a main body 4, wherein the whole main body 4 is of a U-shaped structure, a three-phase port 5 and a summarizing port 6 are arranged at the upper part of the main body 4, a screw rod 7 is arranged at the lower part of the main body 4, the testing main line is connected into the main body 4, one end of the testing main line is respectively connected with an A phase of a high-voltage winding, a middle-voltage winding and a low-voltage winding of the transformer correspondingly, the other end of the testing main line is connected with the high-voltage winding, the middle-voltage winding and the low-voltage winding of a wiring operation platform correspondingly, the screw rod 7 is connected with a three-phase power supply and summarizing signals more conveniently and rapidly, when the testing main line is used, the screw rod 7 is screwed into for moving, and short circuit is not performed when other testing items except for short circuit resistance.
In this embodiment, main part 4 is placed in the aluminum alloy case inside with supporting follow clamp together, guarantees abundant protection, conveniently carries.
Specifically, the main body 4 is divided into a four-core test main clamp with a short circuit structure and a three-core test main clamp without a short circuit structure, and different windings are tested respectively.
Further, the three-core test main clamp is a high-voltage winding test main clamp and is used for testing the high-voltage winding.
Furthermore, the four-core test main clamp is a middle-low voltage winding test main clamp and is used for shorting the windings during the short-circuit test, so that the shorting between the windings during the short-circuit test is more convenient, quick and accurate. This not only improves the reliability of the test, but also reduces the difficulty and complexity of the test.
Further, an insulating protection layer is arranged outside the main body 4, so that a good insulating protection effect is achieved.
Further, screw hole 41 has been seted up to the bottom of main part 4, and the outer wall of screw rod 7 is provided with the external screw thread, and screw rod 7 and screw hole 41 threaded connection can make it flexible through screwing screw rod 7, and then realizes the short circuit function.
Further, the pressure head 71 is installed on the top of screw rod 7, pressure head 71 and hemisphere structure, and the diameter of pressure head 71 is greater than the cross-section diameter of screw rod 7, and the contact surface is great when can guaranteeing the short circuit, guarantees fully compresses tightly.
It is worth noting that when the test main clamp is used, a matched transformer comprehensive test platform is needed to be used, the transformer comprehensive test platform comprises an aluminum alloy box, a wiring operation platform is installed inside the aluminum alloy box, a high-voltage winding, a medium-voltage winding, a low-voltage winding and a terminal screen line concentration box are installed inside the wiring operation platform respectively, the wiring operation platform is also matched with a slave clamp, a test main line is connected to the test main clamp 4, one end of the test main line corresponds to an A phase of the high-voltage winding, the medium-voltage winding and the low-voltage winding of the transformer respectively, and the other end corresponds to the high-voltage winding, the medium-voltage winding and the low-voltage winding of the transformer respectively, so that wiring is more convenient and safe, an access point can be accurately controlled, the accuracy of the test is improved, and the design also improves the maintainability and expandability of equipment, because more or fewer test main lines can be connected to the wiring operation platform as required, the wiring operation on the wiring operation platform is more convenient and safe, the wiring operation platform can be effectively protected, the wiring operation platform is not damaged, and meanwhile, the wiring box is arranged inside the aluminum box, and the equipment is more convenient and the maintenance equipment is more convenient.
Further, the secondary clamp is divided into a three-core secondary clamp and a four-core secondary clamp, and is matched with the test main clamp 4 to be used, and three-core branching wires are connected with the test main clamp 4 and the three-core secondary clamp of the high-voltage winding and are connected into the high-voltage windings of the transformer and the wiring operation platform; the four-core branching connection test master clamp 4 and the four-core slave clamp of the medium-voltage winding and the low-voltage winding are connected into the medium-voltage winding and the low-voltage winding of the transformer and the wiring operation platform, so that wiring is more flexible and convenient, and meanwhile, the design reduces the overall height of the equipment, so that the equipment is easier to carry and maintain; the end screen line concentration box is in the prior art and comprises eight access terminals, wherein the upper row is a high-voltage end screen terminal, and the lower row is a medium-voltage end screen terminal; when the transformer terminal end screen testing device is used, the terminal end screen testing wires are respectively connected with the transformer terminal end screen, when the terminal end screen wire collecting box is used for wiring, the terminal outer ring spring nuts are pressed down and inserted into the terminal end screen testing wires, and then the nuts are loosened, so that the connection is reliable after the nuts are restored to be smooth; the red clamp of end screen test line is measuring terminal, inserts transformer sleeve pipe end screen lead-out wire when using, and black shielding line inserts clamp connection transformer body ground connection can for end screen test is more accurate, reliable. Meanwhile, the access terminal of the end screen line concentration box is divided into a high-voltage end screen terminal and a medium-voltage end screen terminal, so that connection of end screen test lines is clearer, and the possibility of wiring errors is reduced.
When the testing main clamp for the transformer comprehensive test platform is used, firstly, the testing main clamp for the transformer comprehensive test platform is placed beside a transformer to be tested, the wiring end of a wiring operation platform is connected with a corresponding wiring port of the transformer, the testing main clamp 4 is connected with the testing main clamp, a four-core testing main clamp with a short circuit structure or a three-core testing main clamp without a short circuit mechanism is selected according to testing requirements, the testing main clamp is connected with the testing main clamp, the testing main clamp 4 is matched for testing according to actual conditions, and a three-core branching wire is connected with the testing main clamp 4 and the three-core secondary clamp of a high-voltage winding and is connected with the high-voltage winding of the transformer and the wiring operation platform; the four-core branch line is connected with the test master clamp 4 and the four-core slave clamp of the medium-voltage winding and the low-voltage winding of the transformer and the wiring operation platform, the terminal test line is respectively corresponding to the terminal of the transformer according to the wiring requirement of the terminal line concentration box, the terminal is pressed down to the terminal outer ring spring nut, the terminal test line is inserted, and then loosened, so that the nut is restored to be smooth and can be connected reliably, the three-phase and summarizing test is carried out on the transformer through the three-phase port 5 and the summarizing port 6 according to the test requirement, the performance and the quality of the transformer can be evaluated through the record and the analysis of the test result, and whether the relevant standard and regulation are met or not is determined, the test master clamp for the comprehensive test platform of the transformer can realize the test on the high-voltage, the medium-voltage and the low-voltage winding of the transformer through the working principle and the working process, and the evaluation on the overall performance of the transformer is realized through the test on the terminal.
Finally, it should be noted that, in the wiring operation platform, the end screen line concentration box and the like in this embodiment, the electronic components in the components are all universal standard components or components known to those skilled in the art, the structure and principle of the components are all known by those skilled in the art through technical manuals or known through routine experiment methods, all the electrical components are connected through wires at the idle position of the device, and the specific connection means should refer to the sequence of operation between the electrical components in the working principle to complete the electrical connection, which is known in the art.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a test owner clamp that transformer integrated test platform used, includes main part (4), its characterized in that: the main body (4) is of a U-shaped structure as a whole, a three-phase port (5) and a summarizing port (6) are arranged on the upper portion of the main body (4), a screw (7) is arranged on the lower portion of the main body (4), a test main line is connected into the main body (4), one end of the test main line is respectively connected into a high-voltage winding, a medium-voltage winding and a low-voltage winding of a transformer in a corresponding mode, and the other end of the test main line is respectively connected into a high-voltage winding, a medium-voltage winding and a low-voltage winding of a wiring operation platform in a corresponding mode.
2. The test master clip for a transformer integrated test platform of claim 1, wherein: the main body (4) and the matched auxiliary clamp are placed inside the aluminum alloy box together.
3. The test master clip for a transformer integrated test platform of claim 1, wherein: the main body (4) is divided into a four-core test main clamp with a short circuit structure and a three-core test main clamp without a short circuit mechanism.
4. A test master clip for a transformer integrated test platform as set forth in claim 3, wherein: the three-core test main clamp is a high-voltage winding test main clamp.
5. A test master clip for a transformer integrated test platform as set forth in claim 3, wherein: the four-core test main clamp is a middle-low voltage winding test main clamp and is used for short-circuiting among windings in a short-circuit test.
6. The test master clip for a transformer integrated test platform of claim 1, wherein: an insulating protection layer is arranged outside the main body (4).
7. The test master clip for a transformer integrated test platform of claim 1, wherein: the bottom of main part (4) has offered screw hole (41), the outer wall of screw rod (7) is provided with the external screw thread, screw rod (7) and screw hole (41) threaded connection.
8. The test master clip for a transformer integrated test platform of claim 1, wherein: the top end of the screw rod (7) is provided with a pressure head (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322726984.9U CN220983350U (en) | 2023-10-11 | 2023-10-11 | Test main clamp for comprehensive test platform of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322726984.9U CN220983350U (en) | 2023-10-11 | 2023-10-11 | Test main clamp for comprehensive test platform of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220983350U true CN220983350U (en) | 2024-05-17 |
Family
ID=91035295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322726984.9U Active CN220983350U (en) | 2023-10-11 | 2023-10-11 | Test main clamp for comprehensive test platform of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220983350U (en) |
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2023
- 2023-10-11 CN CN202322726984.9U patent/CN220983350U/en active Active
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