CN220040735U - Voltage transformer calibrating device - Google Patents
Voltage transformer calibrating device Download PDFInfo
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- CN220040735U CN220040735U CN202321312557.XU CN202321312557U CN220040735U CN 220040735 U CN220040735 U CN 220040735U CN 202321312557 U CN202321312557 U CN 202321312557U CN 220040735 U CN220040735 U CN 220040735U
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- 238000012360 testing method Methods 0.000 claims abstract description 47
- 238000012795 verification Methods 0.000 claims abstract description 7
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a voltage transformer calibrating device, which belongs to the field of power voltage detection equipment, and the technical scheme is that the voltage transformer calibrating device comprises a test transformer and a standard voltage transformer, wherein the test transformer and the standard voltage transformer are both provided with wiring ports, the wiring ports of the test transformer are fixedly connected with the wiring ports of the standard voltage transformer, wiring terminals of the test transformer are electrically connected with wiring terminals of the standard voltage transformer through the wiring ports, a high-voltage sleeve is fixedly arranged on the upper plane of the standard voltage transformer, and a voltage equalizing component is fixedly arranged on the upper plane of the high-voltage sleeve. Through being provided with the wiring port at test transformer and standard voltage transformer for test transformer and standard voltage transformer's electrical components and parts accessible wiring port accomplish electric connection, have avoided still need the scene to carry out the work flow of electrical connection and dismouting through the cable when carrying out verification operation to the voltage transformer that is surveyed, and reduced equipment cost.
Description
Technical Field
The utility model relates to the field of power voltage detection equipment, in particular to a voltage transformer calibrating device.
Background
The voltage transformer is an important component in the power system, the voltage transformer can detect the output voltage through the voltage signal output by the transformer, when detecting that the voltage change exceeds a certain level, the voltage transformer can control the voltage, the reliability of the output signal of the voltage transformer is ensured, the power system can be enabled to have enough stability, and in order to ensure that the voltage transformer realizes the functions, error verification is required to be carried out on the voltage transformer.
The common method for detecting the error of the voltage transformer in the prior art is as follows: the working voltage is connected with a wiring board of the test transformer through a conductive wire, a high-voltage sleeve of the test transformer is connected with a wiring terminal of the standard voltage transformer through a conductive wire, a grading ring of the standard voltage transformer is connected with a wiring terminal of the tested voltage transformer, after the test transformer is boosted, the high voltage is transmitted to the standard voltage transformer through the conductive wire connected between the high-voltage sleeve of the test transformer and the wiring terminal of the standard voltage transformer, and finally, the error of the tested voltage transformer is verified according to the difference voltage between the standard voltage transformer and the tested voltage transformer.
Aiming at the prior art, when the error of the tested voltage transformer is detected, the tested voltage transformer is required to be connected with the working voltage and the standard voltage transformer through the cable, and the two devices of the tested voltage transformer and the standard voltage transformer are required to be electrically connected, so that the complexity of the error detection operation disassembly and assembly of the tested voltage transformer is increased for workers. In addition, because the test transformer and the standard voltage transformer in the prior art are respectively provided with the voltage equalizing device, the cost of the verification equipment is increased.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the voltage transformer calibrating device which needs to be wired and disassembled on site when calibrating the error of the voltage transformer, has complicated operation flow and high cost of calibrating equipment.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a voltage transformer calibrating device, includes test transformer and standard voltage transformer, and test transformer and standard voltage transformer all are provided with the wiring port, and the wiring port of test transformer and the wiring port fixed connection of standard voltage transformer, the wiring terminal of test transformer and the wiring terminal of standard voltage transformer pass through wiring port electric connection, and the last plane fixed mounting of standard voltage transformer has high-voltage bushing, and the plane fixed mounting has voltage-sharing subassembly on the high-voltage bushing. Through be provided with the wiring port at test transformer and standard voltage transformer for test transformer and standard voltage transformer's electrical components and parts accessible wiring port accomplish electric connection, avoided still need the scene to carry out the work flow of electric connection and dismouting through the cable when examining and examining the operation to the voltage transformer that is surveyed, and after the operating voltage inserts test transformer, test transformer carries high voltage for standard voltage transformer's mode, follow through high voltage bushing transport, become test transformer's electrical components and standard voltage transformer's electrical components and carry high voltage through the wiring port, reduce the fittings such as voltage-sharing device and high voltage bushing of the last plane installation of test transformer, when not reducing conveying efficiency, equipment cost has been reduced.
Preferably, the wiring port of the test transformer and the wiring port of the standard voltage transformer are respectively provided with a flange plate, the flange plates are circumferentially and uniformly distributed with connecting holes, and the two flange plates are mutually matched and fixedly connected. The test transformer is fixedly connected with the standard voltage transformer through the flanges arranged at the wiring ports of the test transformer and the standard voltage transformer, so that the connection strength between the test transformer and the standard voltage transformer is enhanced.
Preferably, the voltage equalizing component comprises a supporting frame, one end of the supporting frame is fixedly connected with the upper plane of the high-voltage sleeve, and the other end of the supporting frame is fixedly connected with an equalizing ring. And the equalizing ring is indirectly installed through the support frame, so that the equalizing ring component can be replaced on the basis of not damaging the high-voltage sleeve structure.
Preferably, the grading ring comprises a wiring terminal, and the wiring terminal of the grading ring is electrically connected with the tested voltage transformer. The voltage transformer calibrating device is used for calibrating the voltage transformer.
Preferably, the equalizing ring and the supporting frame are made of aluminum materials, and the outer surface of the equalizing ring is polished. And the outer surface of the equalizing ring is required to be polished and ground because the equalizing ring is formed by welding by using a light material.
Preferably, the high-voltage bushing is a through-wall porcelain bushing. Can be applied to rated voltage of 10 KV to 35 KV.
According to the technical scheme, the method has the beneficial effects that through the integrated design of the standard voltage transformer and the test transformer, the working flow of firstly electrically assembling the standard voltage transformer and the test transformer when the error detection is carried out on the tested voltage transformer is omitted, and the high-voltage sleeve and the voltage equalizing component of the test transformer are omitted through the integrated design of the standard voltage transformer and the test transformer, so that the flow of the error detection operation on the tested voltage transformer is simplified, and meanwhile, the equipment cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of an embodiment of the present utility model.
In the figure: 1. the test transformer, the standard voltage transformer, the flange, the wiring port, the high-voltage sleeve, the supporting frame and the equalizing ring.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the utility model are intended to be within the scope of the patent protection.
Meanwhile, references in the specification to terms such as "center", "longitudinal", "lateral", "upper", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, and are merely for convenience of description, but do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model, but rather should be construed to be within the scope of the utility model without substantial modification of technical contents.
As shown in fig. 1, a voltage transformer calibrating device comprises a test transformer 1 and a standard voltage transformer 2, wherein the test transformer 1 and the standard voltage transformer 2 are respectively provided with a wiring port 31, the end faces of the two wiring ports 31 are also provided with a flange plate 3, connecting holes are uniformly distributed in the circumferential direction of the flange plate 3, the flange plate 3 of the wiring port 31 of the test transformer 1 and the flange plate 3 of the wiring port 31 of the standard voltage transformer 2 are mutually matched and fixedly connected, the processing difficulty of the wiring port 31 of the standard voltage transformer 2 and the wiring port 31 of the test transformer 1 can be reduced, and the connection difficulty of the two wiring ports is reduced. The electronic element of the test transformer 1 is electrically connected with the electronic element of the standard voltage transformer 2 through a wiring port 31, the upper plane of the standard voltage transformer 2 is fixedly provided with a high-voltage sleeve 4, the high-voltage sleeve 4 adopts a through-wall porcelain sleeve, the high-voltage transformer is suitable for 10-35KV alternating voltage, the top end of the high-voltage sleeve 4 is fixedly provided with a support frame 5, the support frame 5 is fixedly connected with an equalizing ring 6, and the wiring terminal of the equalizing ring 6 is electrically connected with the voltage transformer to be tested.
The specific working process of the utility model is as follows: the working voltage is connected with a wiring board of the test transformer 1 through an electric lead, and the test transformer 1 and the standard voltage transformer 2 are integrally arranged, so that the test transformer 1 is boosted and then transmits high voltage to the standard voltage transformer 2, and the difference voltage between the standard voltage transformer 2 and the tested voltage transformer is detected through using a detection device such as a transformer calibrator and the like, so that the error verification of the tested voltage transformer is realized.
According to the embodiment, the standard voltage transformer and the test transformer are integrally arranged, and after the working voltage is connected to the test transformer, the test transformer and the standard voltage transformer are not required to be electrically connected, meanwhile, the high-voltage sleeve and the voltage equalizing component of the test transformer are omitted, the operation flow for verifying the tested voltage transformer is simplified, and meanwhile, the cost of equipment is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a voltage transformer calibrating device, including test transformer and (1) standard voltage transformer (2), its characterized in that, test transformer (1) and standard voltage transformer (2) all are provided with wiring port (31), wiring port (31) of test transformer (1) and wiring port (31) fixed connection of standard voltage transformer (2), wiring terminal of test transformer (1) and wiring terminal of standard voltage transformer (2) pass through wiring port (31) electric connection, the last plane fixed mounting of standard voltage transformer (2) has high-voltage bushing (4), plane fixed mounting has voltage-sharing subassembly on high-voltage bushing (4).
2. The voltage transformer calibrating device according to claim 1, characterized in that the connection port (31) of the test transformer (1) and the connection port (31) of the standard voltage transformer (2) are respectively provided with a flange plate (3), the flange plates (3) are circumferentially and uniformly distributed with connection holes, and the two flange plates (3) are mutually matched and fixedly connected.
3. The voltage transformer calibrating device according to claim 1, characterized in that the voltage equalizing component comprises a supporting frame (5), one end of the supporting frame (5) is fixedly connected with the upper plane of the high-voltage sleeve (4), and the other end of the supporting frame (5) is fixedly connected with an equalizing ring (6).
4. A voltage transformer verification device as claimed in claim 3, characterized in that the equalizing ring (6) comprises a connecting terminal, the connecting terminal of the equalizing ring (6) being electrically connected with the voltage transformer to be tested.
5. A voltage transformer verification device according to claim 3, wherein the equalizing ring (6) and the supporting frame (5) are made of aluminum materials, and the outer surface of the equalizing ring (6) is polished.
6. A voltage transformer verification device as claimed in claim 3, characterized in that the high voltage bushing (4) is a through-wall porcelain bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321312557.XU CN220040735U (en) | 2023-05-25 | 2023-05-25 | Voltage transformer calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321312557.XU CN220040735U (en) | 2023-05-25 | 2023-05-25 | Voltage transformer calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220040735U true CN220040735U (en) | 2023-11-17 |
Family
ID=88743932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321312557.XU Active CN220040735U (en) | 2023-05-25 | 2023-05-25 | Voltage transformer calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220040735U (en) |
-
2023
- 2023-05-25 CN CN202321312557.XU patent/CN220040735U/en active Active
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