CN220983378U - Novel test rod for generator shaft voltage test - Google Patents
Novel test rod for generator shaft voltage test Download PDFInfo
- Publication number
- CN220983378U CN220983378U CN202322730729.1U CN202322730729U CN220983378U CN 220983378 U CN220983378 U CN 220983378U CN 202322730729 U CN202322730729 U CN 202322730729U CN 220983378 U CN220983378 U CN 220983378U
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- Prior art keywords
- test
- generator
- generator shaft
- rod
- carbon brush
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- 238000012360 testing method Methods 0.000 title claims abstract description 117
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 239000002023 wood Substances 0.000 description 4
- 206010014357 Electric shock Diseases 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Abstract
The application relates to a novel test rod for a generator shaft voltage test, which comprises an insulating rod, a generator carbon brush, a bare copper wire and a test cable. Simultaneously, two groups of test bars are used for testing the two ends of the generator shaft respectively, so that the voltage of the generator shaft can be obtained. The application can ensure that the test personnel are isolated from the electrified equipment through the insulating rod in the whole test process, thereby avoiding mechanical accidents and electric shock accidents and being safer. Meanwhile, the stable contact between the test cable and the generator shaft is ensured by using the generator carbon brush, and the test result is more accurate.
Description
Technical Field
The utility model relates to the field of test equipment, in particular to a novel test rod for a generator shaft voltage test.
Background
After the generator is overhauled, a generator shaft voltage test is required to be carried out after the generator set is connected with the grid, so that stable operation of the generator is ensured.
At present, in actual test, related personnel are required to directly use a copper test line of test equipment for test, and the following defects and defects exist in the test process:
1. Because the machine set is in grid-connected operation, the rotating speed of the generator reaches 3000r/min, and mechanical injury accidents are easy to happen when personnel perform test work before rotating equipment;
2. because the machine set is in grid-connected operation, the rotating speed of the generator reaches 3000r/min, and the reliable contact between the generator and the test line cannot be ensured when a worker uses the existing copper test wiring to perform the test, so that the deviation of test data exists;
3. Because the generator is in an operation state during the test, the personnel operation has the risk of electric shock accidents.
Disclosure of utility model
In order to solve the technical problems, the utility model provides a novel test rod for a generator shaft voltage test.
The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a novel test rod for a generator shaft voltage test, which comprises an insulating rod, a generator carbon brush, a bare copper wire and a test cable;
The end part of the insulating rod is provided with a plurality of first connecting holes, the generator carbon brush is provided with a plurality of second connecting holes, and the bare copper wire is arranged in the first connecting holes and the second connecting holes in a penetrating way so as to fix the generator carbon brush at the end part of the insulating rod;
One end of the test cable is connected with the bare copper wire, and the other end of the test cable is connected with the test equipment.
In an embodiment of the present application, the insulating rod is a wooden rod.
In one embodiment of the present application, the length of the insulating rod is greater than or equal to 1000mm.
In one embodiment of the present application, one end of the test cable is welded to the bare copper wire.
In an embodiment of the present application, the carbon brush of the generator is in contact with the generator shaft to collect an electrical signal of the generator shaft.
In an embodiment of the application, the apertures of the first and second connection holes are.mm.
In one embodiment of the application, the test device is a digital multimeter.
The utility model has the beneficial effects that: the utility model relates to a novel test rod for a generator shaft voltage test, which comprises an insulating rod, a generator carbon brush, a bare copper wire and a test cable. Simultaneously, two groups of test bars are used for testing the two ends of the generator shaft respectively, so that the voltage of the generator shaft can be obtained. The utility model can ensure that the test personnel are isolated from the electrified equipment through the insulating rod in the whole test process, thereby avoiding mechanical accidents and electric shock accidents and being safer. Meanwhile, the stable contact between the test cable and the generator shaft is ensured by using the generator carbon brush, and the test result is more accurate.
Drawings
FIG. 1 is a schematic diagram of a novel generator shaft voltage test stick;
FIG. 2 is a schematic view of an insulating rod according to the present utility model;
Fig. 3 is a schematic structural view of a carbon brush of a motor according to the present utility model;
FIG. 4 is a schematic representation of signal acquisition points at the time of testing of the present utility model;
in the figure: 1-insulating rod, 2-generator carbon brush, 3-bare copper wire, 4-test cable, 11-first connecting hole, 21-second connecting hole.
Detailed Description
Further advantages and effects of the present application will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present application by way of illustration, and only the components related to the present application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
Examples
1-3, The novel test rod for the generator shaft voltage test comprises an insulating rod 1, a generator carbon brush 2, a bare copper wire 3 and a test cable 4;
Wherein, insulating rod 1 is wooden pole, the length of insulating rod 1 is greater than or equal to 1000mm.
The generator carbon brush 2 is matched with the shaft body of the generator to be tested.
The end part of the insulating rod 1 is provided with a plurality of first connecting holes 11, the generator carbon brush 2 is provided with a plurality of second connecting holes 21, and the bare copper wires 3 are arranged in the first connecting holes 11 and the second connecting holes 21 in a penetrating way so as to fix the generator carbon brush 2 at the end part of the insulating rod 1;
One end of the test cable 4 is connected with the bare copper wire 3, and the other end of the test cable 4 is connected with test equipment. Specifically, the other end of the test cable 4 is provided with a test clamp, and the test clamp is connected with test equipment.
One end of the test cable 4 is welded and fixed with the bare copper wire 3. The generator carbon brush 2 is in contact with the generator shaft to collect an electrical signal of the generator shaft. The first and second connection holes 11 and 21 have a hole diameter of 2.5mm. The test equipment is a digital multimeter.
The insulating rod used in the application is an insulating wood rod with the length of 1 meter and the surface coated with high-insulation waterproof paint. The reliability of the insulating wood rod is guaranteed, and meanwhile, the safety distance between a tester and the rotating part and the charged part of the generator is guaranteed to be 1 meter.
According to the novel test rod for the generator shaft voltage test, the carbon brush 2 of the motor can be ensured to be in surface contact with the generator shaft in the use process, and meanwhile, the carbon brush type matched with the motor can be replaced according to the type of the measured generator, so that the measurement accuracy is ensured. And when the carbon brush of the generator of the test rod is worn or damaged, the bare copper wire can be removed, and the bare copper wire and the test wire with the test clamp can be welded again after the carbon brush is replaced, so that the effect of quick replacement is achieved.
According to the novel test rod for the generator shaft voltage test, the bare copper wire 3 and the test cable 4 are welded and directly connected to ensure the reliability of a test line, and failure faults of the device are not easy to occur.
As shown in fig. 2, a test bar for a novel generator shaft voltage test in the present application was tested by the following method:
(1) The test clip at the end of the test cable was connected to a digital multimeter.
(2) When the unit reaches 50% and 100% rated power, a tester holds the insulating wood rod bottom of the test rod to contact the carbon brush part of the generator of the test rod with the test part of the generator.
(3) And (5) observing and recording the voltage value displayed by the digital multimeter to finish the test.
The beneficial effects of the test process include:
1. After the insulating wood rod is connected with the carbon brush of the generator by adopting the copper wire with good conductivity, the safety distance between a tester and the rotating part and the electrified part of the generator can be ensured to be 1 meter during testing, and the working danger is reduced.
2. The novel test rod and the generator contact part in the test process are the generator carbon brush, so that abrasion to the generator test part in the test process is reduced, meanwhile, reliable contact between the test rod and the generator is effectively ensured, and the reliability of test data is improved.
3. Before, during and after the test, the running state of the generator is not required to be changed, and the carbon brush model matched with the generator can be replaced according to the model of the generator to be tested, so that the measurement accuracy is ensured.
The application relates to a novel test rod for a generator shaft voltage test, which comprises an insulating rod, a generator carbon brush, a bare copper wire and a test cable. Simultaneously, two groups of test bars are used for testing the two ends of the generator shaft respectively, so that the voltage of the generator shaft can be obtained. The application can ensure that the test personnel are isolated from the electrified equipment through the insulating rod in the whole test process, thereby avoiding mechanical accidents and electric shock accidents and being safer. Meanwhile, the stable contact between the test cable and the generator shaft is ensured by using the generator carbon brush, and the test result is more accurate.
The above embodiments are merely illustrative of the principles of the present application and its effectiveness, and are not intended to limit the application. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the application. It is therefore intended that all equivalent modifications and changes made by those skilled in the art without departing from the spirit and technical spirit of the present application shall be covered by the appended claims.
Claims (7)
1. The novel test rod for the generator shaft voltage test is characterized by comprising an insulating rod (1), a generator carbon brush (2), a bare copper wire (3) and a test cable (4);
The end part of the insulating rod (1) is provided with a plurality of first connecting holes (11), the generator carbon brush (2) is provided with a plurality of second connecting holes (21), and the bare copper wires (3) are arranged in the first connecting holes (11) and the second connecting holes (21) in a penetrating way so as to fix the generator carbon brush (2) at the end part of the insulating rod (1);
one end of the test cable (4) is connected with the bare copper wire (3), and the other end of the test cable (4) is connected with test equipment.
2. The novel test bar for generator shaft voltage test according to claim 1, wherein the insulating rod (1) is a wooden rod.
3. The novel test bar for generator shaft voltage test according to claim 1, wherein the length of the insulating rod (1) is greater than or equal to 1000mm.
4. The novel test bar for generator shaft voltage test according to claim 1, wherein one end of the test cable (4) is welded and fixed with the bare copper wire (3).
5. The novel test bar for generator shaft voltage test according to claim 4, wherein the generator carbon brush (2) is in contact with the generator shaft to collect an electrical signal of the generator shaft.
6. The novel test stick for generator shaft voltage test according to claim 1, characterized in that the aperture of the first connection hole (11) and the second connection hole (21) is 2.5mm.
7. The novel test bar for generator shaft voltage testing of claim 1, wherein the test device is a digital multimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322730729.1U CN220983378U (en) | 2023-10-12 | 2023-10-12 | Novel test rod for generator shaft voltage test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322730729.1U CN220983378U (en) | 2023-10-12 | 2023-10-12 | Novel test rod for generator shaft voltage test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220983378U true CN220983378U (en) | 2024-05-17 |
Family
ID=91057192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322730729.1U Active CN220983378U (en) | 2023-10-12 | 2023-10-12 | Novel test rod for generator shaft voltage test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220983378U (en) |
-
2023
- 2023-10-12 CN CN202322730729.1U patent/CN220983378U/en active Active
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