CN102062845A - Lightning stroke counter calibration device - Google Patents
Lightning stroke counter calibration device Download PDFInfo
- Publication number
- CN102062845A CN102062845A CN 200910224314 CN200910224314A CN102062845A CN 102062845 A CN102062845 A CN 102062845A CN 200910224314 CN200910224314 CN 200910224314 CN 200910224314 A CN200910224314 A CN 200910224314A CN 102062845 A CN102062845 A CN 102062845A
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- China
- Prior art keywords
- lightning stroke
- display
- leakage current
- power supply
- stroke counter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 208000025274 Lightning injury Diseases 0.000 title claims abstract description 21
- 238000005259 measurement Methods 0.000 claims description 10
- 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 claims description 8
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 3
- 238000007599 discharging Methods 0.000 abstract 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 239000011787 zinc oxide Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000012795 verification Methods 0.000 description 4
- 229960001296 zinc oxide Drugs 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention discloses a lightning stroke counter calibration device relating to a lightning stroke counter calibration instrument. The lightning stroke counter calibration device can emit standard detection current and can verify a leakage ampere meter. The lightning stroke counter calibration device comprises a direct-current power supply input port, a high-pressure generator and a lightning stroke generator. The lightning stroke counter comprises the leakage ampere meter and an action recorder, wherein the leakage ampere meter is used for detecting the leakage current of an arrester, and the action recorder is used for detecting the discharging times of the arrester; the lightning stroke generator is connected with the action recorder; a leakage ampere meter verifying unit is connected between the leakage ampere meter and the direct-current power supply input port and comprises an inverted power supply, a display, a voltage regulating circuit and a current measuring circuit, wherein the voltage regulating circuit and the current measuring circuit are connected in series, and then all circuits are connected with the display in parallel; the parallel interface of the current measuring circuit and the display is connected with the leakage ampere meter; the parallel interface of the voltage regulating circuit and the display is connected with the inverted power supply; and the inverted power supply is connected with the direct-current power supply input port. The invention has the characteristics of small volume, light weight, convenient carrying, strong reliability, simple operation and the like.
Description
Technical field
The present invention relates to a kind of tester of power domain lightning stroke counter, relate in particular to a kind of tester with leakage current table in detection, the verification lightning stroke counter.
Background technology
Monitoring device for lightning arrester (lightning stroke counter) has been widely used in electric system.For the reliability service of lightning arrester on the power transmission circuit provides significant data, can monitor and leakage current is carried out the operation conditions monitoring the thunderbolt situation.So this monitor performance normally whether, whether lightning arrester normally played important detection effect.Whether whether lightning arrester normally then has influence on whole regional electric power networks exists hidden danger.Therefore, to lightning stroke counter carry out verification, detect significant.
Defectives such as the present lightning stroke counter of usefulness on the market can on-line monitoring lightning arrester leakance and thunderbolt number of times, can detect the lightning arrester inherent vice effectively, finds the lightning arrester fault early, and especially integral body is made moist, the inner member valve block is aging.Lightning arrester leakance and discharge counter generally are serially connected between lightning arrester and the earthing pole, directly detect lightning arrester leakance, write down the lightning arrester discharge time simultaneously.In actual motion, when the situation of poor sealing occurring, lightning arrester leakance and discharge counter may enter moisture or moisture, thereby make its inner member corrosion, or other reasons problems such as cause can not regular event such as: counter, and the leakage current indication is inaccurate.So need regularly lightning arrester leakance and discharge counter to be carried out verification.
But in the concrete work, we find the numerical value of this reometer, and are obviously bigger than normal or reduce than normal sometimes, when three-phase numerical value inconsistent data is unusual, very likely be the fault of this reometer itself, because the probability that reometer itself breaks down and not second to the probability of failure of other device.According to the way of routine, when this reometer is detected, need more discrete instrument and meters such as external power supply, pressure regulator, divider resistance, normal voltage, reometer, to constitute check system; Obviously can not satisfy work on the spot fast, accurately, requirement easily.
Summary of the invention
The present invention is directed to above problem, provide a kind of when sending the standard detection electric current, can also carry out the lightning stroke counter tester of verification the leakage current table.
Technical scheme of the present invention is: it comprises the direct supply input port, high pressure generator, the thunderbolt generator, described lightning stroke counter comprises the leakage current table that is used to detect leakage current of an arrester, be used to detect the discharge counter of lightning arrester discharge time, described thunderbolt generator links to each other with discharge counter, between leakage current table and direct supply input port, be connected with leakage current table calibration equipment, described leakage current table calibration equipment comprises inverter, display, voltage regulator circuit and current measurement circuit, described voltage regulator circuit and current measurement circuit serial connection is again with display and connect; The also interface of current measurement circuit and display is connected described leakage current table; The also interface of voltage regulator circuit and display is connected described inverter, and described inverter links to each other with described direct supply input port again.
The present invention one is to have increased leakage current table check part on original lightning stroke counter tester, the 2nd, increase inverter and solved field power supply, thereby increased the means of testing, improved the sensitivity of test, increased the foundation of judging, the labour intensity that reduces a staff simultaneously.The present invention has that volume is little, in light weight, easy to carry, good reliability, characteristics such as simple to operate.Can save manpower greatly, improve the lightning stroke counter testing precision, thereby find accident potential in advance, avoid lightning arrester to have an accident, for testing crew provides basis for estimation targetedly.
Description of drawings
Fig. 1 is a structural principle block diagram of the present invention
Embodiment
The present invention as shown in Figure 1, it comprises the direct supply input port, high pressure generator, the thunderbolt generator, described lightning stroke counter comprises the leakage current table that is used to detect leakage current of an arrester, be used to detect the discharge counter of lightning arrester discharge time, described thunderbolt generator links to each other with discharge counter, between leakage current table and direct supply input port, be connected with leakage current table calibration equipment, described leakage current table calibration equipment comprises inverter, display, voltage regulator circuit and current measurement circuit, described voltage regulator circuit and current measurement circuit serial connection is again with display and connect; The also interface of current measurement circuit and display is connected described leakage current table; The also interface of voltage regulator circuit and display is connected described inverter, and described inverter links to each other with described direct supply input port again.
The insulation great majority of power equipment all are the combined electrical media, and under the DC voltage effect, the voltage in the stratified medium distributes and is directly proportional with resistance, and under the effect of DC voltage, its voltage is by distribution of resistance.Therefore, the leakage current under the DC voltage effect is resistive, and is single, easy on measuring, and just measures easily.
What the voltage in alternating voltage effect lower leaf medium distributed and electric capacity is inversely proportional to.The amount of electric current is not single amount.Capacitive component, inductive component, resistive component etc. have been comprised.If electrical equipment is comparatively single resistance medium,, can roughly regard resistive element as Zinc-Oxide Arrester (its main element is the ZnO resistors valve block).When measuring its leakage current, need to measure capacitive component, resistive component and the total current component of Zinc-Oxide Arrester.And in the measurement of each amount, judge with different electric current content at different media.As record first-harmonic content, harmonic content of electric current or the like.
In view of the foregoing, and be alternating voltage in conjunction with what carry on the normally used Zinc-Oxide Arrester of electric system, the leakage current that directly is reflected on the leakage current table also has AC characteristic, and therefore, the inverter that the present invention increases can provide the alternating current consistent with leak current characteristic.Simultaneously, the technological means for capacitive component, resistive component and the total current component of grasping Zinc-Oxide Arrester from now on comprehensively provides a good thinking.
Claims (1)
1. lightning stroke counter tester, it comprises the direct supply input port, high pressure generator, the thunderbolt generator, described lightning stroke counter comprises the leakage current table that is used to detect leakage current of an arrester, be used to detect the discharge counter of lightning arrester discharge time, described thunderbolt generator links to each other with discharge counter, it is characterized in that, between leakage current table and direct supply input port, be connected with leakage current table calibration equipment, described leakage current table calibration equipment comprises inverter, display, voltage regulator circuit and current measurement circuit, described voltage regulator circuit and current measurement circuit serial connection is again with display and connect; The also interface of current measurement circuit and display is connected described leakage current table; The also interface of voltage regulator circuit and display is connected described inverter, and described inverter links to each other with described direct supply input port again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910224314 CN102062845A (en) | 2009-11-17 | 2009-11-17 | Lightning stroke counter calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910224314 CN102062845A (en) | 2009-11-17 | 2009-11-17 | Lightning stroke counter calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102062845A true CN102062845A (en) | 2011-05-18 |
Family
ID=43998208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910224314 Pending CN102062845A (en) | 2009-11-17 | 2009-11-17 | Lightning stroke counter calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102062845A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636767A (en) * | 2012-05-07 | 2012-08-15 | 宁波电业局 | Checking apparatus for online monitor of lightning arrester |
| CN102636768A (en) * | 2012-05-07 | 2012-08-15 | 宁波电业局 | Online check method for online monitor of lightning arrester |
| CN102736050A (en) * | 2012-06-14 | 2012-10-17 | 中国计量科学研究院 | Series-parallel connection self-calibration method for current proportion of direct current large-current comparator |
-
2009
- 2009-11-17 CN CN 200910224314 patent/CN102062845A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636767A (en) * | 2012-05-07 | 2012-08-15 | 宁波电业局 | Checking apparatus for online monitor of lightning arrester |
| CN102636768A (en) * | 2012-05-07 | 2012-08-15 | 宁波电业局 | Online check method for online monitor of lightning arrester |
| CN102636768B (en) * | 2012-05-07 | 2016-04-27 | 宁波电业局 | A kind of lightning arrester on-line computing model on-line testing method |
| CN102736050A (en) * | 2012-06-14 | 2012-10-17 | 中国计量科学研究院 | Series-parallel connection self-calibration method for current proportion of direct current large-current comparator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP Effective date: 20121022 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121022 Address after: 225009 Weiyang Road, Jiangsu, China, No. 179, No. Applicant after: Yangzhou Power Supply Company of Jiangsu Electric Power Company Applicant after: Jiangsu Electric Power Company Applicant after: State Grid Corporation of China Address before: 225009 Weiyang Road, Jiangsu, China, No. 179, No. Applicant before: Yangzhou Power Supply Company of Jiangsu Electric Power Company |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110518 |