CN102636767A - Checking apparatus for online monitor of lightning arrester - Google Patents
Checking apparatus for online monitor of lightning arrester Download PDFInfo
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- CN102636767A CN102636767A CN2012101398125A CN201210139812A CN102636767A CN 102636767 A CN102636767 A CN 102636767A CN 2012101398125 A CN2012101398125 A CN 2012101398125A CN 201210139812 A CN201210139812 A CN 201210139812A CN 102636767 A CN102636767 A CN 102636767A
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- lightning arrester
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- monitoring appearance
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Abstract
The invention discloses a checking apparatus for an online monitor of a lightning arrester. The checking apparatus for the online monitor of the lightning arrester comprises a current measurement unit, a lightning simulation unit and a power supply unit; wherein the current measurement unit is used for connecting with the online monitor of the lightning arrester in parallel; the lightning simulation unit is used for inputting high-voltage current to the online monitor of the lightning arrester connected with the lightning simulation unit in parallel; and the power supply unit is used for supplying power for the lightning simulation unit. As the checking apparatus for the online monitor of the lightning arrester can detect a plurality of online monitors of the lightning arrester on the site of a transformer substation and periodically detect all the online monitors of the lightning arrester, the safety of the transformer substation can be effectively improved, and as all the online monitors of the lightning arrester can be online detected within one operation at the transformer substation, the online monitors of the lightning arrester do not need to be removed or conveyed anymore, so that the work efficiency is effectively improved, and the manpower and material costs are greatly saved.
Description
Technical field
The present invention relates to field of electrical equipment, particularly a kind of lightning arrester on-line monitoring appearance calibration equipment.
Background technology
The function of lightning arrester on-line monitoring appearance is the size and the lightning arrester superpotential number of times of monitoring leakage current of an arrester in real time; With the performance quality of reflection lightning arrester, do not make regular check on what lightning arrester on-line monitoring appearance itself required to do according to " status of electric power maintenance procedure ".
Lightning arrester on-line monitoring appearance be in the high-voltage alternating electric power system with the matching used instrument of Zinc-Oxide Arrester, it is serially connected in the arrester ground loop.Milliammeter in the lightning arrester on-line monitoring appearance is used to monitor under the working voltage through the leakage current of lightning arrester, is used to judge whether lightning arrester inside makes moist, and whether inner member aging, deterioration; Operation counter in the lightning arrester on-line monitoring appearance is used to write down the superpotential number of times of lightning arrester.Because lightning arrester on-line monitoring appearance is directly connected to the safe operation of relevant lightning arrester, therefore judge that for the test of lightning arrester on-line monitoring appearance the performance quality is very important.
In the maintenance repair work of power equipment, normally under the situation of off-line, carry out for the performance verification test of lightning arrester on-line monitoring appearance.Specifically, need at first the on-line monitoring appearance to be separated from ground loop and come, whether good to the make an experiment performance of judging it of on-line monitoring appearance independently then.
The shortcoming of prior art is; Because in transformer station, include many lightning arrester on-line monitoring appearance, fault can't be found through the artificial visually examine timely; And then also just can't realize regular detection, so there is very big potential safety hazard to all lightning arrester on-line monitoring appearance.And if all lightning arrester on-line monitoring appearance are disassembled from ground loop, lightning arrester on-line monitoring appearance is transported back into row detect then, then can waste lot of manpower and material resources, make work efficiency low.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of lightning arrester on-line monitoring appearance calibration equipment, improves the security of transformer station and has improved work efficiency with realization, has practiced thrift the purpose of manpower and materials costs.
The summary of the invention of the embodiment of the invention is following:
A kind of lightning arrester on-line monitoring appearance calibration equipment comprises: current measuring unit, simulation thunderbolt unit and power supply unit;
Said current measuring unit is used for being connected in parallel with said lightning arrester on-line monitoring appearance;
Said simulation thunderbolt unit is used for to the lightning arrester on-line monitoring appearance input high-tension current that is connected in parallel with said simulation thunderbolt unit;
Said power supply unit is used for to said simulation thunderbolt unit power supply being provided.
Preferably, in embodiments of the present invention, said simulation thunderbolt unit comprises: high pressure generator.
Preferably, in embodiments of the present invention, said high-tension current is the instantaneous pressure electric current.
Preferably, in embodiments of the present invention, also comprise the Leakage Current analogue unit;
Said Leakage Current analogue unit is used for being connected in parallel the back to said lightning arrester on-line monitoring appearance input persistent current with said lightning arrester on-line monitoring appearance.
Preferably, in embodiments of the present invention, also comprise switch unit;
Said switch unit is used to switch said power supply unit and is struck by lightning being communicated with of unit or said current measuring unit with said simulation.
Preferably, in embodiments of the present invention, said Leakage Current analogue unit is connected with said power supply unit.
Preferably, in embodiments of the present invention, the internal resistance of said current measuring unit is less than the internal resistance of said lightning arrester on-line monitoring appearance.
Preferably, in embodiments of the present invention, the internal resistance of said current measuring unit is less than one of percentage of the internal resistance of said lightning arrester on-line monitoring appearance.
Preferably, in embodiments of the present invention, said power supply unit comprises direct supply and inverter.
Preferably, in embodiments of the present invention, said power supply unit also comprises AC power interface.
Can find out through technique scheme; In embodiments of the present invention, be provided with current measuring unit, simulation thunderbolt unit and power supply unit, wherein; After current measuring unit and lightning arrester on-line monitoring appearance are connected in parallel; Can record the Leakage Current of lightning arrester, compare, can learn whether the milliammeter in the online lightning arrester on-line monitoring appearance breaks down through the Leakage Current current value of lightning arrester that current measuring unit is recorded and the Leakage Current current value in the lightning arrester on-line monitoring appearance; In addition; Lightning arrester on-line monitoring appearance calibration equipment in the embodiment of the invention also includes simulation thunderbolt unit; Through simulating the thunderbolt unit with after lightning arrester on-line monitoring appearance is parallelly connected, to lightning arrester on-line monitoring appearance input high-tension current, through observation lightning arrester on-line monitoring appearance after passing through high-tension current; Be used to reflect whether lightning arrester can write down this high-tension current through the operation counter of superpotential number of times, and whether the operation counter that can record lightning arrester on-line monitoring appearance is normal.
Because the lightning arrester on-line monitoring appearance calibration equipment in the embodiment of the invention can be carried by the testing staff; Can accomplish the online detection of a plurality of lightning arrester on-line monitoring appearance at the scene of transformer station; Can realize timing all lightning arrester on-line monitoring appearance are detected; So can improve the security of transformer station effectively, and owing to can get final product all lightning arrester on-line monitoring appearance of online detection at transforming plant primary, and needn't dismantle and transport lightning arrester on-line monitoring appearance; So also improved work efficiency effectively, practiced thrift the lot of manpower and material resources cost.
Description of drawings
Fig. 1 is the electrical block diagram of the appearance of lightning arrester on-line monitoring described in embodiment of the invention calibration equipment;
Fig. 2 is the another electrical block diagram of the appearance of lightning arrester on-line monitoring described in embodiment of the invention calibration equipment.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
For the security that improves transformer station effectively with improved work efficiency; Practiced thrift the manpower and materials cost; The embodiment of the invention provides a kind of lightning arrester on-line monitoring appearance calibration equipment, and is as shown in Figure 1, comprising: current measuring unit 11, simulation thunderbolt unit 12 and power supply unit 13;
The main performance of lightning arrester on-line monitoring appearance 14 comprises: the leakage current that reflects lightning arrester through milliammeter wherein; In addition; Also write down through lightning arrester through superpotential number of times through operation counter; When these two performances are in proper working order, can think that then lightning arrester on-line monitoring appearance is functional, there is not fault.
For make the patrolman can be accurately and the lightning arrester on-line monitoring appearance 14 that detects easily in the transformer station whether have fault, lightning arrester on-line monitoring appearance 14 calibration equipments in the embodiment of the invention have comprised current measuring unit 11, simulation thunderbolt unit 12; What wherein current measuring unit 11 was concrete can be reometer; Through reometer and lightning arrester on-line monitoring appearance 14 are connected in parallel; Can record the detection current value of the Leakage Current of lightning arrester through reometer; And then will detect the Leakage Current current value that current value and lightning arrester on-line monitoring appearance 14 shown and compare; If the deviation of the Leakage Current current value that the Leakage Current that current measuring unit 11 records detection current value and lightning arrester on-line monitoring appearance 14 are shown can judge that then the milliammeter of lightning arrester on-line monitoring appearance 14 is in proper working order in certain scope.
Next; During operation counter in detecting lightning arrester on-line monitoring appearance 14; Can simulation thunderbolt unit 12 and lightning arrester on-line monitoring appearance 14 be connected in parallel, thunderstorm hour generation superpotential takes place in 12 simulations of simulation thunderbolt unit then, to lightning arrester on-line monitoring appearance 14 input high-tension currents; Because the normal lightning arrester on-line monitoring of performance appearance 14 is after the process superpotential, its operation counter can be carried out corresponding operation of recording.So whether can detect the operation counter of lightning arrester on-line monitoring appearance 14 through simulation thunderbolt unit 12 in proper working order.
Because the lightning arrester on-line monitoring appearance calibration equipment in the embodiment of the invention can be carried by the testing staff; Can accomplish the online detection of a plurality of lightning arrester on-line monitoring appearance at the scene of transformer station; Can realize timing all lightning arrester on-line monitoring appearance are detected; So can improve the security of transformer station effectively, and owing to can get final product all lightning arrester on-line monitoring appearance of online detection at transforming plant primary, and needn't dismantle and transport lightning arrester on-line monitoring appearance; So also improved work efficiency effectively, practiced thrift the lot of manpower and material resources cost.
Preferably; In embodiments of the present invention, in order to realize test action counter repeatedly, so that test result is more accurate; The high-tension current that simulation thunderbolt unit 12 is produced can be the instantaneous pressure electric current; Like this, the test that can carry out repeatedly lightning arrester on-line monitoring appearance 14 is to improve precision of test result.
Concrete, in embodiments of the present invention, what simulation thunderbolt unit 12 was concrete can be high pressure generator, through with after the conventional current transformation, produces the superpotential that is used for the test action counter.
In another embodiment of the present invention, comprise with Fig. 1 in all unit among the corresponding embodiment, as shown in Figure 2, can also comprise Leakage Current analogue unit 15;
Leakage Current analogue unit 15 is used for being connected in parallel the back to lightning arrester on-line monitoring appearance 14 input persistent currents with lightning arrester on-line monitoring appearance 14.
After lightning arrester on-line monitoring appearance 14 is removed; There is not Leakage Current to pass through lightning arrester on-line monitoring appearance; Perhaps, in some cases, lightning arrester can't transmit the Leakage Current that continues to lightning arrester on-line monitoring appearance 14; In order under above situation, to detect the performance of lightning arrester on-line monitoring appearance 14 easily; The embodiment of the invention has also comprised Leakage Current analogue unit 15, and Leakage Current analogue unit 15 is connected the two ends of lightning arrester on-line monitoring appearance 14, and the Leakage Current of simulation is provided to lightning arrester on-line monitoring appearance 14.Like this, when having Leakage Current, can not detect lightning arrester on-line monitoring appearance 14 through lightning arrester on-line monitoring appearance 14 yet.Concrete, Leakage Current analogue unit 15 can power supply be provided through power supply 13.
In order must to detect the milliammeter and the operation counter of lightning arrester on-line monitoring appearance respectively through a power supply, preferred, in embodiments of the present invention, can also include switch unit 16;
Switch unit 16 be used to switch power supply unit 13 and simulation thunderbolt unit 12 or, the connection of Leakage Current analogue unit 15.Thereby can pass through commutation circuit; When detecting the milliammeter of lightning arrester on-line monitoring appearance 14; Switch unit 16 is communicated with Leakage Current analogue unit 15; For Leakage Current analogue unit 15 provides power supply, thereby the lasting Leakage Current of simulation can be provided to lightning arrester on-line monitoring appearance 14, with the detection of the milliammeter of accomplishing lightning arrester on-line monitoring appearance 14.When detecting the operation counter of lightning arrester on-line monitoring appearance 14, switch unit 16 is communicated with simulation thunderbolt unit 15, thereby can make simulation thunderbolt unit 15 produce high pressure, with the detection of the operation counter of accomplishing lightning arrester on-line monitoring appearance 14.
Preferably, in order to make that data are more accurate when detecting the milliammeter of lightning arrester on-line monitoring appearance, in embodiments of the present invention, also with the internal resistance of current measuring unit internal resistance less than lightning arrester on-line monitoring appearance.
Because the internal resistance of current measuring unit is more little; Its measured current value approach more lightning arrester on-line monitoring appearance milliammeter should test value; So select internal resistance value less current measurement mechanism in embodiments of the present invention for use; Concrete, when the internal resistance of current measuring unit less than the internal resistance of lightning arrester on-line monitoring appearance percent for the moment, measured value will be more accurate.
For lightning arrester on-line monitoring appearance on-line testing device also can be used under the situation of external power supply not having; In embodiments of the present invention; Power supply unit can also include direct supply and inverter; Direct supply is dc-battery, for lightning arrester on-line monitoring appearance on-line testing device power supply is provided after converting DC current into alternating current through inverter.
In addition, the power supply unit in the embodiment of the invention can also comprise AC power interface, thus the AC power of external vicinity easily.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a lightning arrester on-line monitoring appearance calibration equipment is characterized in that, comprising: current measuring unit, simulation thunderbolt unit and power supply unit;
Said current measuring unit is used for being connected in parallel with said lightning arrester on-line monitoring appearance;
Said simulation thunderbolt unit is used for to the lightning arrester on-line monitoring appearance input high-tension current that is connected in parallel with said simulation thunderbolt unit;
Said power supply unit is used for to said simulation thunderbolt unit power supply being provided.
2. according to the said lightning arrester on-line monitoring of claim 1 appearance calibration equipment, it is characterized in that said simulation thunderbolt unit comprises: high pressure generator.
3. according to the said lightning arrester on-line monitoring of claim 2 appearance calibration equipment, it is characterized in that said high-tension current is the instantaneous pressure electric current.
4. according to the said lightning arrester on-line monitoring of claim 3 appearance calibration equipment, it is characterized in that, also comprise the Leakage Current analogue unit;
Said Leakage Current analogue unit is used for being connected in parallel the back to said lightning arrester on-line monitoring appearance input persistent current with said lightning arrester on-line monitoring appearance.
5. according to the said lightning arrester on-line monitoring of claim 4 calibration equipment, it is characterized in that, also comprise switch unit;
Said switch unit is used to switch said power supply unit and is struck by lightning being communicated with of unit or said current measuring unit with said simulation.
6. according to the said lightning arrester on-line monitoring of claim 5 appearance calibration equipment, it is characterized in that said Leakage Current analogue unit is connected with said power supply unit.
7. according to the said lightning arrester on-line monitoring of claim 6 appearance calibration equipment, it is characterized in that the internal resistance of said current measuring unit is less than the internal resistance of said lightning arrester on-line monitoring appearance.
8. according to the said lightning arrester on-line monitoring of claim 7 appearance calibration equipment, it is characterized in that,
The internal resistance of said current measuring unit is less than one of percentage of the internal resistance of said lightning arrester on-line monitoring appearance.
9. said according to Claim 8 lightning arrester on-line monitoring appearance calibration equipment is characterized in that said power supply unit comprises direct supply and inverter.
10. according to the said lightning arrester on-line monitoring of claim 9 appearance calibration equipment, it is characterized in that said power supply unit also comprises AC power interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101398125A CN102636767A (en) | 2012-05-07 | 2012-05-07 | Checking apparatus for online monitor of lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101398125A CN102636767A (en) | 2012-05-07 | 2012-05-07 | Checking apparatus for online monitor of lightning arrester |
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| CN102636767A true CN102636767A (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101398125A Pending CN102636767A (en) | 2012-05-07 | 2012-05-07 | Checking apparatus for online monitor of lightning arrester |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749545A (en) * | 2015-04-19 | 2015-07-01 | 国网青海省电力公司海东供电公司 | Lightning arrester monitor verifying device |
| CN105116253A (en) * | 2015-08-25 | 2015-12-02 | 国网新疆电力公司昌吉供电公司 | Live dismounting structure of lightning arrester on-line monitoring device |
| CN105676044A (en) * | 2016-04-22 | 2016-06-15 | 南彦勃 | Online test method and system for lightning arrester and monitor thereof |
| CN107037337A (en) * | 2017-04-25 | 2017-08-11 | 四川诺特科技有限公司 | Arrester simulates the test system of true environment |
Citations (5)
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|---|---|---|---|---|
| JP2000091058A (en) * | 1998-09-11 | 2000-03-31 | Chugoku Electric Power Co Inc:The | Leakage current monitoring device for lightning arrester |
| JP2001155841A (en) * | 1999-11-30 | 2001-06-08 | Mitsubishi Electric Corp | Apparatus of monitoring lightning arrester |
| CN101587176A (en) * | 2009-06-17 | 2009-11-25 | 河南省电力公司商丘供电公司 | Instrument for lightning arrester monitor test |
| CN102062845A (en) * | 2009-11-17 | 2011-05-18 | 江苏省电力公司扬州供电公司 | Lightning stroke counter calibration device |
| CN202600126U (en) * | 2012-05-07 | 2012-12-12 | 宁波电业局 | Arrester online monitor verifying unit |
-
2012
- 2012-05-07 CN CN2012101398125A patent/CN102636767A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000091058A (en) * | 1998-09-11 | 2000-03-31 | Chugoku Electric Power Co Inc:The | Leakage current monitoring device for lightning arrester |
| JP2001155841A (en) * | 1999-11-30 | 2001-06-08 | Mitsubishi Electric Corp | Apparatus of monitoring lightning arrester |
| CN101587176A (en) * | 2009-06-17 | 2009-11-25 | 河南省电力公司商丘供电公司 | Instrument for lightning arrester monitor test |
| CN102062845A (en) * | 2009-11-17 | 2011-05-18 | 江苏省电力公司扬州供电公司 | Lightning stroke counter calibration device |
| CN202600126U (en) * | 2012-05-07 | 2012-12-12 | 宁波电业局 | Arrester online monitor verifying unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749545A (en) * | 2015-04-19 | 2015-07-01 | 国网青海省电力公司海东供电公司 | Lightning arrester monitor verifying device |
| CN105116253A (en) * | 2015-08-25 | 2015-12-02 | 国网新疆电力公司昌吉供电公司 | Live dismounting structure of lightning arrester on-line monitoring device |
| CN105676044A (en) * | 2016-04-22 | 2016-06-15 | 南彦勃 | Online test method and system for lightning arrester and monitor thereof |
| CN107037337A (en) * | 2017-04-25 | 2017-08-11 | 四川诺特科技有限公司 | Arrester simulates the test system of true environment |
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Application publication date: 20120815 |