CN211374940U - 500kV zinc oxide arrester high altitude testing arrangement - Google Patents
500kV zinc oxide arrester high altitude testing arrangement Download PDFInfo
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- CN211374940U CN211374940U CN201921768883.5U CN201921768883U CN211374940U CN 211374940 U CN211374940 U CN 211374940U CN 201921768883 U CN201921768883 U CN 201921768883U CN 211374940 U CN211374940 U CN 211374940U
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- test wire
- insulator spindle
- measuring electrode
- zinc oxide
- insulating rod
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Abstract
The utility model discloses a 500kV zinc oxide arrester high altitude testing arrangement, it includes insulator spindle, measuring electrode, test wire support insulator spindle, high voltage test wire, direct current generator, generator controller, horizontal high voltage test wire supports insulator spindle one end, measuring electrode passes through fastening screw and sets up on the insulator spindle top, be fixed with U type groove on the test wire support insulator spindle other end, high voltage test wire one end is connected with measuring electrode, the other end passes U type groove and is connected to direct current generator, generator controller is connected with direct current generator, be used for the control voltage size; the utility model discloses can effectively avoid the pressurization line angle not enough and relapse a lot of wiring waste time, improve test efficiency.
Description
Technical Field
The utility model relates to an electrical measurement technical field, especially a 500kV zinc oxide arrester high altitude 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
For overcoming the not enough of current mode of connection, need not to use high altitude construction car to ascend a height, the utility model discloses utilize the insulator spindle to design a 500kV zinc oxide arrester high altitude test device.
The utility model discloses 500kV zinc oxide arrester high altitude testing arrangement includes the insulator spindle, measure electrode, the test wire supports the insulator spindle, the high-pressure test wire, direct current generator, the generator control ware, the test wire supports insulator spindle one end, measure electrode passes through fastening screw and sets up on the insulator spindle top relatively, the test wire supports and is fixed with U type groove on the insulator spindle other end, high-pressure test wire one end is connected with measure electrode, the other end passes U type groove connection to direct current generator, the generator control ware is connected with direct current generator, a control voltage size.
The insulating rod is a telescopic rod.
The measuring electrode is an arc electrode.
One end of the high-voltage test wire is connected with the measuring electrode through a clamp.
The testing wire supporting insulating rod is provided with a hole at one end, the measuring electrode is provided with a hole at one end, the top end of the insulating rod is provided with a threaded hole, a fastening screw penetrates through the hole at one end of the testing wire supporting insulating rod and the hole at one end of the measuring electrode to be arranged in the threaded hole at the top end of the insulating rod, and the testing wire supporting insulating rod and the measuring electrode are fixed at the top end of the insulating rod.
The generator controller is a conventional commercial product, and the voltage is controlled according to a conventional method.
When the lightning arrester is used, the telescopic insulating rod is extended to the height of the lightning arrester; then, the angle between the measuring electrode, the test wire supporting insulating rod and the insulating rod is adjusted through the fastening screw, so that the measuring electrode on the insulating rod can be well contacted with the upper and lower lightning arrester connecting metal pieces, and the included angles between the measuring electrode, the high-voltage test wire and the lightning arrester form 90 degrees; one end of the high-voltage test wire is fixed on the measuring electrode through a clamp, and the other end of the high-voltage test wire is connected with the direct current generator through a U-shaped groove; the generator controller is connected with the direct current generator through the test signal connecting line, so that pressurization can be started, and the voltage is controlled through the generator controller.
Compared with the existing wiring device, the beneficial effects of the utility model reside in that: 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 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.
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 structural view of the present invention;
FIG. 2 is a schematic view of the present apparatus in use;
FIG. 1-insulating rod; 2-a measuring electrode; 3-the lightning arrester is connected with the metal piece; 4-a generator controller; 5-fastening screws; 6-test wire supporting insulation rod; 7-U-shaped groove; 8-high voltage test line; 9-a direct current generator; 10-test signal connection line; 11-lightning arrester.
Detailed Description
The present invention will be described in further detail with reference to the following examples;
example 1: as shown in fig. 1-2, the 500kV zinc oxide arrester high altitude test device comprises a telescopic insulating rod 1, a measuring electrode 2, a generator controller 4, a test wire supporting insulating rod 6, a high voltage test wire 8, and a dc generator 9, wherein one end of the test wire supporting insulating rod 6 is provided with a hole, one end of the measuring electrode is provided with a hole, the top end of the insulating rod 1 is provided with a threaded hole, a fastening screw 5 penetrates through the hole at one end of the test wire supporting insulating rod 6 and the hole at one end of the measuring electrode is arranged in the threaded hole at the top end of the insulating rod 1, i.e. one end of the test wire supporting insulating rod 6 and the measuring electrode 2 are oppositely arranged at the top end of the insulating rod 1 through the fastening screw 5, a U-shaped groove 7 is fixed at the other end of the test wire supporting insulating rod 6, one end of the high voltage test wire 8 is connected with the measuring electrode 2, the other end penetrates through the U-shaped groove 7 to, the voltage control circuit is used for controlling the voltage; the measuring electrode is an arc electrode.
The method used on site of the utility model comprises the following steps:
the first step is as follows: during testing, the telescopic insulating rod 1 is firstly extended to the height of the measuring lightning arrester 11; then, the angle between the measuring electrode 2, the test wire supporting insulating rod 6 and the insulating rod 1 is adjusted through a fastening screw 5, so that the arc-shaped measuring electrode 2 on the insulating rod 1 can be well contacted with the upper and lower lightning arrester connecting metal pieces 3, and the included angles between the measuring electrode, the high-voltage test wire and the lightning arrester form 90 degrees;
the second step is that: one end of a high-voltage test wire 8 is fixed on the arc-shaped measuring electrode 2 through a clamp, and the high-voltage test wire 8 is connected with a direct-current generator 9 through a U-shaped groove 7;
the third step: the test signal connecting wire 10 is respectively connected with the generator controller 4 and the direct current generator 9;
the fourth step: and when the power supply is switched on, pressurization can be started, the voltage is controlled by the generator controller 4, and the test device is detached after the test is finished.
The utility model discloses 500kV zinc oxide arrester high altitude testing arrangement, 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 (5)
1. The utility model provides a 500kV zinc oxide arrester high altitude testing arrangement which characterized in that: including insulator spindle (1), measure electrode (2), test wire supports insulator spindle (6), high voltage test wire (8), direct current generator (9), generator controller (4), test wire supports insulator spindle (6) one end, measure electrode (2) and set up on insulator spindle (1) top relatively through fastening screw (5), the test wire supports and is fixed with U type groove (7) on insulator spindle (6) the other end, high voltage test wire (8) one end is connected with measure electrode (2), the other end passes U type groove (7) and is connected to direct current generator (9), generator controller (4) are connected with direct current generator (9), be used for the control voltage size.
2. The 500kV zinc oxide arrester high altitude testing arrangement of claim 1, characterized in that: the insulating rod (1) is a telescopic rod.
3. The 500kV zinc oxide arrester high altitude testing arrangement of claim 1, characterized in that: the measuring electrode is a circular arc electrode.
4. The 500kV zinc oxide arrester high altitude testing arrangement of claim 1, characterized in that: one end of the high-voltage test wire (8) is connected with the measuring electrode (2) through a clamp.
5. The 500kV zinc oxide arrester high altitude testing arrangement of claim 1, characterized in that: one end of the test wire supporting insulating rod (6) is provided with a hole, one end of the measuring electrode is provided with a hole, the top end of the insulating rod (1) is provided with a threaded hole, and the fastening screw (5) penetrates through the hole at one end of the test wire supporting insulating rod (6) and the threaded hole at one end of the measuring electrode, which is arranged in the threaded hole at the top end of the insulating rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921768883.5U CN211374940U (en) | 2019-10-21 | 2019-10-21 | 500kV zinc oxide arrester high altitude testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921768883.5U CN211374940U (en) | 2019-10-21 | 2019-10-21 | 500kV zinc oxide arrester high altitude testing arrangement |
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| Publication Number | Publication Date |
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| CN211374940U true CN211374940U (en) | 2020-08-28 |
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| CN201921768883.5U Active CN211374940U (en) | 2019-10-21 | 2019-10-21 | 500kV zinc oxide arrester high altitude testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749807A (en) * | 2019-10-21 | 2020-02-04 | 云南电网有限责任公司楚雄供电局 | A 500kV Zinc Oxide Arrester High Altitude Test Device |
-
2019
- 2019-10-21 CN CN201921768883.5U patent/CN211374940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110749807A (en) * | 2019-10-21 | 2020-02-04 | 云南电网有限责任公司楚雄供电局 | A 500kV Zinc Oxide Arrester High Altitude Test Device |
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