CN210982698U - 500kV zinc oxide arrester leakage current exempts from to ascend a height testing arrangement - Google Patents
500kV zinc oxide arrester leakage current exempts from to ascend a height testing arrangement Download PDFInfo
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- CN210982698U CN210982698U CN201921768177.0U CN201921768177U CN210982698U CN 210982698 U CN210982698 U CN 210982698U CN 201921768177 U CN201921768177 U CN 201921768177U CN 210982698 U CN210982698 U CN 210982698U
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Abstract
The utility model discloses a 500kV zinc oxide arrester leakage current climbing-free testing device, which comprises an insulating hook, a strong magnet, an insulating support rod, a stainless steel frame, a guide groove, an insulating rod, a high-voltage test wire and a direct current generator, wherein the lower end of the insulating hook is fixedly connected with the strong magnet, the stainless steel frame is adsorbed at the lower end of the strong magnet, one end of the insulating support rod is fixed on the insulating hook and positioned above the strong magnet, the other end of the insulating support rod is provided with an insulating hole, the upper end of the guide groove is fixed below the stainless steel frame, an upper magnet is fixed in the guide groove, the top end of the insulating rod is provided with a lower magnet, the upper magnet and the lower magnet are mutually matched through magnetic adsorption, one end of the high-voltage test wire is connected on the stainless steel frame, the other end of the high-voltage test wire is connected with a generator controller; the device does not need to use an overhead working truck, so that the risk of high falling of the tester is avoided; effectively avoided the pressurization line angle not enough and repeated wiring waste time, improved test efficiency.
Description
Technical Field
The utility model relates to an electrical measurement technical field, especially a 500kV zinc oxide arrester leakage current exempts from to ascend a height testing arrangement.
Background
The 500kV lightning arrester is one of important electrical equipment of a power system, and plays an important role in safe operation of the power system when lightning overvoltage or operation overvoltage occurs to a power grid. In order to ensure that the lightning arrester safely and reliably operates in a power system, preventive tests on the lightning arrester are needed, wherein the most important test items are power failure test items for measuring direct current reference voltage and leakage current under 0.75 times of direct current reference voltage.
In the field test process, because the high-altitude operation vehicle is required to ascend every time the test line is replaced, in order to ensure the accuracy of data, the test line and the lightning arrester should keep an included angle of 90 degrees, and no special test wiring tool is provided, so that the included angle between the voltage adding line and the lightning arrester casing pipe is 90 degrees, the test wiring requirement is not met, in addition, the influence of factors such as positions of induced electricity, an equalizing ring and a ground wire installed on a lead is added, the leakage current under the direct current reference voltage and the 0.75-time direct current reference voltage of the lightning arrester are tested on the field, and the test data exceed the standard frequently.
Disclosure of Invention
Not enough to current wiring mode, the utility model provides a 500kV zinc oxide arrester leakage current exempts from to ascend a height testing arrangement, and the device need not to use the high altitude construction car to ascend a height.
The utility model discloses a 500kV zinc oxide arrester leakage current climbing-free testing device comprises an insulation hook, a strong magnet, an insulation support rod, a stainless steel frame, a guide groove, an insulation rod, an insulation rope, a high-voltage test wire, a direct current generator, a generator controller, wherein the lower end of the insulation hook is fixedly connected with the strong magnet, the stainless steel frame is adsorbed at the lower end of the strong magnet through magnetism, one end of the insulation support rod is fixed on the insulation hook and positioned above the strong magnet, the other end of the insulation support rod is provided with an insulation hole, the upper end of the guide groove is fixed below the stainless steel frame, an upper magnet is fixed in the guide groove, the top end of the insulation rod is provided with a lower magnet, the upper magnet and the lower magnet are mutually matched through magnetic adsorption, one end of the high-voltage test wire is connected on the stainless steel frame, the other end is connected with the direct current generator, one end of the insulation rope is, the DC generator is connected with the generator controller.
The stainless steel frame is rectangular.
The guide slot is a hollow cone.
The upper magnet and the lower magnet are round blocks.
The insulating rod is a telescopic rod.
The generator controller is a conventional commercial product, and the output voltage of the direct current generator is controlled by a conventional method.
When the device is used, one end of a high-voltage test wire is clamped on the rectangular stainless steel frame through the clamp, the length of the insulating rope is adjusted according to the heights of the insulating hook and the rectangular stainless steel frame, one end of the insulating rope is connected with the insulating hole, the other end of the insulating rope is connected with the high-voltage test wire, and the high-voltage test wire and the lightning arrester form a test included angle of 90 degrees; the insulating rod is extended to the height of the arrester grading ring, the insulating hook is hung on the arrester grading ring through the insulating rod, the insulating rod is pulled downwards to separate the stainless steel frame from the strong magnet, the stainless steel frame is sleeved on the upper and lower arrester connecting metal pieces, and the insulating rod is pulled downwards to separate the upper magnet in the guide groove from the lower magnet at the top of the insulating rod; the high voltage test line is connected to the DC generator, so that the pressurization can be started, and the voltage is controlled by the generator controller.
The utility model discloses compare beneficial effect with current termination and lie in: the test personnel do not need to use an overhead working truck, so that the risk of high falling of the test personnel is avoided; overcome simultaneously that the people stands subaerial unable make high-voltage test line and arrester sleeve pipe contained angle become 90 through pulling insulating rope, adopt the utility model discloses can effectively avoid the pressurization line angle not enough and relapse a lot of wiring waste time, improve test efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor;
FIG. 1 is a schematic view of the structure of the device of the present invention;
FIG. 2 is a schematic view of the structure of the utility model in use;
in the figure: 1-insulating hook; 2-a strong magnet; 3-insulating support rods; 4-an insulating hole; 5-stainless steel frame; 6-upper magnet; 7-a lower magnet; 8-a guide groove; 9-an insulating rod; 10-arrester grading ring; 11-a lightning arrester; 12-connecting the upper lightning arrester with the lower lightning arrester; 13-an insulating rope; 14-high voltage test line; 15-a direct current generator; 16-test signal connection line; 17-generator controller.
Detailed Description
The present invention will be described in further detail with reference to the following examples;
example 1: as shown in fig. 1, the 500kV zinc oxide arrester leakage current climbing-free testing device comprises an insulating hook 1, a strong magnet 2, an insulating support rod 3, a rectangular stainless steel frame 5, a guide groove 8, a telescopic insulating rod 9, an insulating rope 13, a high-voltage test wire 14, a direct current generator 15 and a generator controller 17, wherein the lower end of the insulating hook 1 is welded on the strong magnet 2, the stainless steel frame 5 is adsorbed at the lower end of the strong magnet 2 through magnetism, one end of the insulating support rod 3 is welded and fixed on the insulating hook 1 and positioned above the strong magnet 2, the other end of the insulating support rod 3 is provided with an insulating hole 4, the upper end of the guide groove 8 is welded and fixed below the stainless steel frame 5, and the guide groove 8 is a hollow cone; the guide slot 8 internal fixation has circular shape to go up magnet 6, insulator spindle 9 top welded fastening has circular shape magnet 7 down, it mutually supports through magnetic adsorption with magnet 7 down to go up magnet 6, high voltage test line 14 one end is connected on stainless steel frame 5, the other end is connected with direct current generator 15, direct current generator 15 passes through test signal connecting wire 16 and is connected with generator controller 17, insulating rope 13 one end is connected on insulating hole 4, the other end is connected on high voltage test line 14.
The upper magnet 6 and the lower magnet 7 can be effectively attracted and separated before and after the test;
as shown in fig. 2, the method used in the field of the present invention comprises the following steps:
the first step is as follows: during testing, one end of a high-voltage test wire 14 is clamped on the rectangular stainless steel frame 5 through a clamp, the length of an insulating rope 13 is adjusted according to the heights of the insulating hook 1 and the rectangular stainless steel frame 5, one end of the insulating rope 13 is connected with the insulating hole, the other end of the insulating rope is connected with the high-voltage test wire 14, and the high-voltage test wire and the lightning arrester 11 form a test included angle of 90 degrees;
the second step is that: the insulating rod is stretched 9 to reach the height of the arrester grading ring, the insulating hook 1 is hung on the arrester grading ring 10 through the insulating rod, the insulating rod is pulled downwards to separate the stainless steel frame 5 from the strong magnet 2, the stainless steel frame 5 is sleeved on the upper and lower arrester connecting metal pieces 12, and the insulating rod is pulled downwards to separate the upper magnet 6 in the guide groove from the lower magnet 7 at the top of the insulating rod;
the third step: connecting a high-voltage test line 14 to a direct current generator 15, switching on a power supply, starting pressurization, and controlling the voltage through a generator controller 17; dismantling the test equipment after the test is finished;
the utility model discloses 500kV zinc oxide arrester leakage current exempts from to ascend a height testing arrangement utilizes arrester self equalizer ring and metal connecting part, and the tester need not to use the high altitude construction car, has avoided the high risk of weighing down of personnel when experimental; overcome simultaneously that the people stands subaerial unable make high-voltage test line and arrester contained angle become 90 through pulling the insulating rope, adopted the utility model discloses can effectively avoid the pressurization line angle not enough and relapse a lot of wiring waste time, improve test efficiency.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a 500kV zinc oxide arrester leakage current exempts from to ascend a height testing arrangement which characterized in that: comprises an insulation hook (1), a strong magnet (2), an insulation support rod (3), a stainless steel frame (5), a guide groove (8), an insulation rod (9), an insulation rope (13), a high-voltage test wire (14), a direct current generator (15) and a generator controller (17), wherein the lower end of the insulation hook (1) is fixedly connected with the strong magnet (2), the stainless steel frame (5) is adsorbed at the lower end of the strong magnet (2) through magnetism, one end of the insulation support rod (3) is fixed on the insulation hook (1) and positioned above the strong magnet (2), the other end of the insulation support rod (3) is provided with an insulation hole (4), the upper end of the guide groove (8) is fixed below the stainless steel frame (5), an upper magnet (6) is fixed in the guide groove (8), the top end of the insulation rod (9) is provided with a lower magnet (7), the upper magnet (6) and the lower magnet (7) are mutually matched through magnetic adsorption, one end of the high-voltage test wire (, the other end of the insulating rope is connected with a direct current generator (15), one end of the insulating rope (13) is connected to the insulating hole (4), the other end of the insulating rope is connected to a high-voltage test wire (14), and an included angle of 90 degrees is formed between the high-voltage test wire and the lightning arrester; the direct current generator (15) is connected to a generator controller (17).
2. The 500kV zinc oxide arrester leakage current climbing-free testing device according to claim 1, characterized in that: the stainless steel frame (5) is rectangular.
3. The 500kV zinc oxide arrester leakage current climbing-free testing device according to claim 1, characterized in that: the guide groove (8) is a hollow cone.
4. The 500kV zinc oxide arrester leakage current climbing-free testing device according to claim 1, characterized in that: the upper magnet (6) and the lower magnet (7) are round blocks.
5. The 500kV zinc oxide arrester leakage current climbing-free testing device according to claim 1, characterized in that: the insulating rod (9) is a telescopic rod.
6. The 500kV zinc oxide arrester leakage current climbing-free testing device according to claim 1, characterized in that: the high-voltage test wire (14) is connected with the stainless steel frame (5) through a clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921768177.0U CN210982698U (en) | 2019-10-21 | 2019-10-21 | 500kV zinc oxide arrester leakage current exempts from to ascend a height testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921768177.0U CN210982698U (en) | 2019-10-21 | 2019-10-21 | 500kV zinc oxide arrester leakage current exempts from to ascend a height testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210982698U true CN210982698U (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921768177.0U Active CN210982698U (en) | 2019-10-21 | 2019-10-21 | 500kV zinc oxide arrester leakage current exempts from to ascend a height testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210982698U (en) |
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2019
- 2019-10-21 CN CN201921768177.0U patent/CN210982698U/en active Active
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