CN205506918U - Multisection zinc oxide arrester leakage current measuring device - Google Patents
Multisection zinc oxide arrester leakage current measuring device Download PDFInfo
- Publication number
- CN205506918U CN205506918U CN201520516877.6U CN201520516877U CN205506918U CN 205506918 U CN205506918 U CN 205506918U CN 201520516877 U CN201520516877 U CN 201520516877U CN 205506918 U CN205506918 U CN 205506918U
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- China
- Prior art keywords
- direct current
- circuit
- zinc
- microampere
- detection device
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 238000004891 communication Methods 0.000 claims abstract description 9
- 229960001296 zinc oxide Drugs 0.000 claims description 36
- 238000005259 measurement Methods 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 10
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 230000003750 conditioning effect Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 241001062009 Indigofera Species 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 9
- PYZSVQVRHDXQSL-UHFFFAOYSA-N dithianon Chemical compound S1C(C#N)=C(C#N)SC2=C1C(=O)C1=CC=CC=C1C2=O PYZSVQVRHDXQSL-UHFFFAOYSA-N 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 238000005457 optimization Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 208000032750 Device leakage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a multisection zinc oxide arrester leakage current measuring device, including the remote control platform, high voltage direct current genera tor, direct current microampere detection device and multisection zinc oxide arrester, the remote control platform passes through radio communication with high voltage direct current genera tor. The jointing clamp fixed connection of fa delan department between the multisection zinc oxide arrester, direct current microampere detection device physical location fixed connection is on the jointing clamp, and high voltage direct current genera tor's signal output part and direct current microampere detection device's signal input part pass through electrical connection wire, and direct current microampere detection device's the jointing clamp that passes through is connected with zinc oxide arrester. The utility model discloses an on multisection zinc oxide arrester leakage current measuring device, direct current microampere detection device physics were fixed in the jointing clamp between two sections arresters, high -pressure test lead can directly not pass through direct current microampere detection device to the stray current of surrounding air or equipment, has avoided stray current's influence, ensures the measuring accuracy.
Description
Technical field
This utility model relates to current measuring device, in particular a kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus.
Background technology
Zinc-Oxide Arrester is one of electrical equipment of transformer station, forms for non-linear zinc oxide valve plate, is used for preventing outside thunderbolt or internal overvoltage impact failure power equipment.In handing-over or routine test, need the DC reference voltage under the direct-current reference current of on-the-spot test Zinc-Oxide Arrester and the leakage current measurement (microampere order) under 0.75 times of DC reference voltage.Current existing measurement device leakage current is to install microampere meter to measure on high voltage direct current generator top, and operating board is connected with high voltage direct current generator by cable.There is following problems in existing measuring method: 1, microampere meter is arranged on high voltage direct current generator, and the leakage current of test can comprise Hi-pot test and go between to surrounding air or the stray electrical current of equipment, and measurement error is big；2, there is physical connection in operating board and high voltage direct current generator, once breaks down, and high pressure may reach on operating board by cable, jeopardizes the life security of operator.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus, direct current microampere detection device is fixed on the jointing clamp between two joint spark gaps, it is to avoid the impact of stray electrical current, it is ensured that the accuracy of measurement.
This utility model is achieved through the following technical solutions: a kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus, including remote control table, high voltage direct current generator, direct current microampere detection device and more piece Zinc-Oxide Arrester, described remote control table and described high voltage direct current generator pass through radio communication, two joints are stated flange between Zinc-Oxide Arrester and are fixed with jointing clamp and be connected, described direct current microampere detection device physical position is fixedly connected on described jointing clamp, the signal output part of described high voltage direct current generator is electrically connected by wire with described direct current microampere detection device, the signal output part of described direct current microampere detection device passes through to electrically connect with described Zinc-Oxide Arrester.
As the further optimization of such scheme, described jointing clamp is provided with universal contact, and the flange on described Zinc-Oxide Arrester is fixing with the universal contact on jointing clamp to be connected.
Further optimization as such scheme, described direct current microampere detection device includes housing, built-in signal modulate circuit, signal filter circuit, A/D change-over circuit, microprocessor control circuit, liquid crystal display circuit, wireless transmission circuit and the power circuit powered for foregoing circuit in described housing.
Further optimization as such scheme, described microprocessor control circuit includes microprocessor chip and peripheral circuit thereof, the signal output part of described microprocessor control circuit electrically connects with the signal input part of liquid crystal display circuit and wireless transmission circuit, and the outfan of described signal conditioning circuit is electrically connected with the signal input part of described microprocessor control circuit by signal filter circuit, described A/D change-over circuit.
As the further optimization of such scheme, described direct current microampere detection device is communicated to connect with described remote control table by built-in wireless transmission circuit.
As the further optimization of such scheme, described wireless transmission circuit is Bluetooth communication modules, and described direct current microampere detection device is communicated to connect with described remote control table by built-in Bluetooth communication modules.
As the further optimization of such scheme, the input of described high voltage direct current generator is connected with 220V alternating current circuit, and by built-in diode and silicon stack, alternating voltage is converted into high direct voltage.
Compared with prior art, having the beneficial effect that of a kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus that this utility model provides:
1, a kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus of the present utility model, any two joint spark gaps connect by jointing clamp is fixing, wherein, universal contact on jointing clamp is firmly connected with the flange on spark gap, direct current microampere detection device is connected on jointing clamp by screw, do not come off during guaranteeing leak test detection, it is ensured that safety, accuracy.
2, a kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus of the present utility model, direct current microampere detection device physical is fixed on the jointing clamp between two joint spark gaps, the stray electrical current of surrounding air or equipment directly will not be detected device by direct current microampere by Hi-pot test lead-in wire, avoid the impact of stray electrical current, it is ensured that the accuracy of measurement.
3, a kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus of the present utility model, by radio communication, there is not physical connection in remote control table and high voltage direct current generator, during leak test detection, operator is safer.
Accompanying drawing explanation
Fig. 1 is the topological structure schematic diagram of a kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus of the present utility model.
Fig. 2 is the circuit structure block diagram of the direct current microampere detection device in Fig. 1.
Detailed description of the invention
Elaborating embodiment of the present utility model below, the present embodiment is implemented under premised on technical solutions of the utility model, gives detailed embodiment and concrete operating process, but protection domain of the present utility model is not limited to following embodiment.
See Fig. 1, for the topological structure schematic diagram of a kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus of the present utility model.A kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus of this preferred embodiment, including remote control table 5, high voltage direct current generator 4, direct current microampere detection device 3 and the more piece Zinc-Oxide Arrester 1 being located on high voltage direct current generator.Wherein, remote control table and high voltage direct current generator are by radio communication, and the input of high voltage direct current generator is connected with the 220V alternating current circuit of power supply directly under the jurisdiction of a municipal government, and by built-in diode and silicon stack, alternating voltage is converted into high direct voltage.The signal output part of high voltage direct current generator is electrically connected by wire with the signal input part of direct current microampere detection device, and the signal output part of direct current microampere detection device is electrically connected by wire with described Zinc-Oxide Arrester.
Connecting by jointing clamp 2 is fixing between any two joint Zinc-Oxide Arresters, direct current microampere detection device physical position is fixedly connected on jointing clamp.Optimizing, jointing clamp is provided with universal contact, and the flange on Zinc-Oxide Arrester coordinates fixing connection with the universal contact on jointing clamp.
Wherein, jointing clamp includes jointing clamp body, fixing metal clamp, live metal clamp, binding post, rotary screw and lifting nut, the upper and lower of jointing clamp body is all correspondingly arranged fixing metal clamp and binding post, the inside of jointing clamp body is provided with on rotary screw, rotary screw and is cased with lifting nut, live metal clamp is relative with fixing metal clamp, and lifting nut is connected with live metal clamp and drives live metal clamp to run in jointing clamp basis.Being provided with compression spring in live metal clamp and fixing metal clamp, jointing clamp body peripheral hardware also has spiral cable buncher.Described live metal clamp is provided with universal contact and coordinates with the flange on Zinc-Oxide Arrester fixing.So that any two joint Zinc-Oxide Arresters connect by jointing clamp is fixing.Direct current microampere detection device is screwed on the jointing clamp being connected between two joint Zinc-Oxide Arresters.Do not come off during guaranteeing leak test detection, it is ensured that safety, accuracy.
A kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus of the present utility model, direct current microampere detection device physical is fixed on the jointing clamp between two joint spark gaps, the stray electrical current of surrounding air or equipment directly will not be detected device by direct current microampere by Hi-pot test lead-in wire, avoid the impact of stray electrical current, it is ensured that the accuracy of measurement.
Wherein, the direct current microampere detection device that this utility model uses includes housing, built-in signal modulate circuit 11, signal filter circuit 12, A/D change-over circuit 13, microprocessor control circuit 15, liquid crystal display circuit 14, wireless transmission circuit 16 and the power circuit powered for foregoing circuit in housing.Microprocessor control circuit includes microprocessor chip and peripheral circuit thereof, the signal output part of microprocessor control circuit electrically connects with the signal input part of liquid crystal display circuit and wireless transmission circuit, and the outfan of signal conditioning circuit is electrically connected with the signal input part of microprocessor control circuit by signal filter circuit, A/D change-over circuit.
Signal conditioning circuit is for being converted into voltage signal by the current signal inputting direct current microampere of the present utility model detection device, and the outfan of signal conditioning circuit electrically connects with the signal input part of signal filter circuit.Signal filter circuit is for removing the signal of noise, and the signal output part of signal filter circuit electrically connects with the signal input part of A/D change-over circuit.A/D change-over circuit is used for analog digital conversion, and the signal output part of A/D change-over circuit electrically connects with the signal input part of microprocessor control circuit.Microprocessor control circuit carries out Digital Signal Processing, and the signal after processing shows current value in real time by liquid crystal display circuit, and the signal after processing sends remote control table to by Bluetooth communication modules.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in this utility model.Should not be considered as limiting involved claim by any reference in claim.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (7)
1. a more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus, including remote control table, direct current is high
Pressure generator, direct current microampere detection device and the more piece Zinc-Oxide Arrester being located on high voltage direct current generator, institute
State remote control table and pass through radio communication with described high voltage direct current generator, it is characterised in that: two save described oxygen
Changing and connect by jointing clamp is fixing between zinc spark gap, described direct current microampere detection device physical position is fixedly connected on
On described jointing clamp, the signal output part of described high voltage direct current generator detects the letter of device with described direct current microampere
The electrical connection of number input, the signal output part of described direct current microampere detection device is electrically connected with described Zinc-Oxide Arrester
Connect.
A kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus the most according to claim 1, it is special
Levy and be: described jointing clamp is provided with on universal contact, the flange on described Zinc-Oxide Arrester and jointing clamp
Universal contact is fixing to be connected.
A kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus the most according to claim 1, it is special
Levy and be: described direct current microampere detection device includes housing, built-in signal modulate circuit, signal in described housing
Filter circuit, A/D change-over circuit, microprocessor control circuit, liquid crystal display circuit, wireless transmission circuit and
The power circuit powered for foregoing circuit.
A kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus the most according to claim 3, it is special
Levy and be: described microprocessor control circuit includes microprocessor chip and peripheral circuit thereof, described microprocessor
The signal output part of control circuit electrically connects with the signal input part of liquid crystal display circuit and wireless transmission circuit, institute
State the outfan of signal conditioning circuit by signal filter circuit, described A/D change-over circuit and described microprocessor
The signal input part electrical connection of control circuit.
A kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus the most according to claim 1, it is special
Levy and be: described direct current microampere detection device is led to described remote control table by built-in wireless transmission circuit
Letter connects.
A kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus the most according to claim 5, its feature
Being: described wireless transmission circuit is Bluetooth communication modules, described direct current microampere detection device is by built-in indigo plant
Tooth transport module communicates to connect with described remote control table.
A kind of more piece Leakage Current of Zinc-oxide Lightning Arresters measurement apparatus the most according to claim 1, it is special
Levy and be: the input of described high voltage direct current generator is connected with 220V alternating current circuit, and by built-in two
Alternating voltage is converted into high direct voltage by pole pipe and silicon stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520516877.6U CN205506918U (en) | 2015-07-16 | 2015-07-16 | Multisection zinc oxide arrester leakage current measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520516877.6U CN205506918U (en) | 2015-07-16 | 2015-07-16 | Multisection zinc oxide arrester leakage current measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205506918U true CN205506918U (en) | 2016-08-24 |
Family
ID=56719929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520516877.6U Active CN205506918U (en) | 2015-07-16 | 2015-07-16 | Multisection zinc oxide arrester leakage current measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205506918U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383291A (en) * | 2016-09-26 | 2017-02-08 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Test wiring device and method for field test of leakage current of lightning arrester |
| CN111856113A (en) * | 2020-06-24 | 2020-10-30 | 国网山东省电力公司淄博供电公司 | Non-intrusive measurement method for true leakage current of zinc oxide arrester |
-
2015
- 2015-07-16 CN CN201520516877.6U patent/CN205506918U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383291A (en) * | 2016-09-26 | 2017-02-08 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Test wiring device and method for field test of leakage current of lightning arrester |
| CN106383291B (en) * | 2016-09-26 | 2023-05-26 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Test wiring device and method for testing leakage current of lightning arrester on site |
| CN111856113A (en) * | 2020-06-24 | 2020-10-30 | 国网山东省电力公司淄博供电公司 | Non-intrusive measurement method for true leakage current of zinc oxide arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: STATE GRID ANHUI POWER SUPPLY COMPANY OVERHAUL BRANCH Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: State Grid Corporation of China Patentee before: Maintenance Company Of State Grid Anhui Electric Power Company |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: Super high voltage branch of State Grid Anhui Electric Power Co.,Ltd. Address before: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee before: STATE GRID CORPORATION OF CHINA Patentee before: STATE GRID ANHUI POWER SUPPLY COMPANY OVERHAUL BRANCH |
|
| CP01 | Change in the name or title of a patent holder |