CN105067045A - Power distribution network high-tension switch cabinet monitoring device - Google Patents
Power distribution network high-tension switch cabinet monitoring device Download PDFInfo
- Publication number
- CN105067045A CN105067045A CN201510554533.9A CN201510554533A CN105067045A CN 105067045 A CN105067045 A CN 105067045A CN 201510554533 A CN201510554533 A CN 201510554533A CN 105067045 A CN105067045 A CN 105067045A
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- China
- Prior art keywords
- switch cabinet
- tension switch
- gas
- gas sensor
- control module
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Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 6
- 230000006837 decompression Effects 0.000 claims abstract description 3
- 238000012360 testing method Methods 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 abstract description 16
- 238000001514 detection method Methods 0.000 abstract description 13
- 239000007789 gas Substances 0.000 description 73
- 238000000034 method Methods 0.000 description 10
- 229910018503 SF6 Inorganic materials 0.000 description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
- Separation Of Gases By Adsorption (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides a power distribution network high-tension switch cabinet monitoring device comprising a gas sensor, a control unit and a gas pressure monitoring unit. The gas sensor is arranged on the outer side of a high-tension switch cabinet and is capable of detecting the content of at least one gas component of gas pumped out by a suction pump. The control unit judges the state of the high-tension switch cabinet according to the detection results of the gas sensor. The gas pressure monitoring unit is located in the high-tension switch cabinet and is used for detecting the gas pressure in the high-tension switch cabinet in real time and transmitting the detection results to the control unit in real time. The control unit judges whether an exception occurs in the high-tension switch cabinet according to the detection results of the gas pressure monitoring unit and the gas sensor. If an exception occurs in the high-tension switch cabinet, decompression operation is done through the control unit and the suction pump.
Description
Technical field
The present invention relates to a kind of monitoring method and device, especially relate to a kind of power distribution network high-tension switch cabinet monitoring method and device.
Background technology
It is large that power distribution network has equipment consumption, and widely distributed feature, is directly associated with the power supply reliability of user.Along with the development of national economy, among Distribution Network Equipment total amount is in always and constantly increases.Distribution Network Equipment high-voltage switch refers to for electric system generating, transmission of electricity, distribution, electric energy conversion and plays the effects such as break-make, control or protection in consuming; electric pressure, in the electric equipment products of 3.6kV ~ 550kV, mainly comprises primary cut-out, high voltage isolator and grounding switch, high voltage load switch etc.
High-tension switch cabinet is the electrical equipment based on high-voltage switch gear, and the primary equipments such as bus, insulator, mutual inductor, lightning arrester, grounding switch and the secondary device supervising primary equipment, control, measure, adjust and protect is assemblied in its metal cabinet closed.High-tension switch cabinet is widely used in each link of electrical network, and its safe operation is directly connected to the safety of whole electrical network and electric system to the power supply quality of user, is one of most important electrical equipment in electric system.
In the operation maintenance of power distribution network, implementing state-detection to equipment is guarantee device security stable operation, improves the optimal path of power supply reliability.Meanwhile, implementing state evaluation to equipment is also reduce power grid operation management cost, the most effective means of real-time judge life period of equipment.But current power supply enterprise faces the undermanned problem not high with maintenance efficiency of operation maintenance usually.Therefore, state-detection is carried out to the major equipment in power distribution network and state evaluation is the effective way solved the problem.
In prior art, the method for supervising for distribution network includes the method for supervising such as manual inspection, infrared monitoring, UV radiation monitoring, gas composition monitoring.These method for supervising also exist self advantage and the scope of application separately.201310039253.5 patent of invention propose a kind of monitoring method and device of high-tension switch cabinet, when utilizing high-tension switch cabinet to break down, its composition of gases within there will be the principle of corresponding change, vacuum pump is used to bleed gas in high-voltage board, by judging the fault of high-tension switch cabinet to the gas composition analysis in high-tension switch cabinet.
The invention of 201310039253.5 only needs high-voltage switch gear to be connected with pump-line cashier's office in a shop can to detect, not by the impact of high-tension switch cabinet running status.But, because high-tension switch cabinet is sealing, if to bleed in real time monitoring for high-tension switch cabinet, cause its internal gas to reduce, the running status of equipment in possible impact to voltage switch cubicle; If carry out certain interval of time timing for high-tension switch cabinet and to bleed monitoring, may cause cannot the fault of Timeliness coverage high-tension switch cabinet.
Summary of the invention
The invention provides a kind of power distribution network high-tension switch cabinet monitoring method and device, can monitor in real time for high-tension switch cabinet, and can not the operation of equipment in impact to voltage switch cubicle.
As one aspect of the present invention, provide a kind of monitoring method of power distribution network high-tension switch cabinet, comprising: use air pressure monitor unit to detect high-tension switch cabinet air pressure inside in real time; Aspiration pump is used to extract gas in high-tension switch cabinet; Gas sensor is used to detect the content of the middle at least one gas componant of gas in high-tension switch cabinet; Whether exception is there is according in the content high-tension switch cabinet of described at least one gas componant; Operational failure alarm unit is reported to the police for the exception in high-tension switch cabinet.
Preferably, in said method, high-tension switch cabinet air pressure inside is monitored in real time; When air pressure inside is abnormal, extract gas in high-tension switch cabinet, use gas sensor to detect the content of the middle at least one gas componant of gas; When air pressure inside is normal, do not extract the content of gas detect at least one gas componant in high-tension switch cabinet.
Preferably, in said method, described at least one gas componant to comprise in sulfur hexafluoride, sulfuretted hydrogen, ozone one or more.
As another aspect of the present invention, provide a kind of power distribution network high-tension switch cabinet monitoring device, comprising: aspiration pump, the entrance of described aspiration pump is positioned at high-tension switch cabinet inside, for by the gas extraction in high-tension switch cabinet out; Gas sensor, described gas sensor is arranged at high-tension switch cabinet outside, can detect the content of at least one gas componant in the gas that aspiration pump is extracted out; Control module, described control module judges the state of high-tension switch cabinet according to the testing result of gas sensor; Fault alarm unit, described fault alarm unit is used for reporting to the police for the fault of high-tension switch cabinet; Also comprise air pressure monitor unit and entrance closed cell; Described air pressure monitor unit is positioned at the inside of high-tension switch cabinet, for detecting the air pressure of high-tension switch cabinet inside in real time, and testing result is real-time transmitted to described control module; Described entrance closed cell is used for the entrance closing described aspiration pump, when the air pressure testing result of described air pressure monitor unit is abnormal, described control module triggers described entrance closed cell, aspiration pump and gas sensor and opens, detect the content of the gas componant that aspiration pump is extracted out, judge whether high-tension switch cabinet occurs exception.
Preferably, described control module is monitored in real time for the atmospheric pressure value of the detection of described air pressure monitor unit, when the atmospheric pressure value monitoring high-tension switch cabinet inside is greater than first threshold, judges that the air pressure testing result in high-tension switch cabinet is abnormal.
Preferably, described control module also records the atmospheric pressure value in specific continuous time, and calculates the atmospheric pressure value increment in this special time inner high voltage cabinet, if this atmospheric pressure value increment is higher than Second Threshold, judges that the air pressure testing result in high-tension switch cabinet is abnormal.
Preferably, described aspiration pump has two outlets, and wherein the first outlet connects described gas sensor, detects to described gas sensor for providing gas in high-tension switch cabinet; Second outlet is exhaust outlet, is directly connected with the external world.
Preferably, when described gas sensor detector switch cabinet internal gas content, described control module opens described first outlet, closes described second outlet.
Preferably, when described control module is according to the content of gas componant, when judging that high-tension switch cabinet occurs abnormal, described control module closes gas sensor and the first outlet, opens aspiration pump and the second outlet, is exhausted the gas in high-tension switch cabinet.
Preferably, if the air pressure of high-tension switch cabinet is higher than first threshold, but gas sensor detects that the content of gas componant is normal, described control module closes gas sensor and the first outlet, open aspiration pump and the second outlet, gas in high-tension switch cabinet is exhausted until when the atmospheric pressure value of described high-tension switch cabinet inside is lower than the 3rd threshold value, closes the second outlet and aspiration pump, and close the entrance of aspiration pump.
Preferably, if when the atmospheric pressure value increment of specific continuous time is greater than threshold value, but gas sensor detects that the content of gas componant is normal, and described control module judges that whether air pressure in high-tension switch cabinet is higher than the 3rd threshold value; If higher than the 3rd threshold value, described control module closes gas sensor and the first outlet, open aspiration pump and the second outlet, gas in high-tension switch cabinet is exhausted until when the atmospheric pressure value of described high-tension switch cabinet inside is lower than the 3rd threshold value, close the second outlet and aspiration pump, and close the entrance of aspiration pump; If lower than the 3rd threshold value, described control module does not carry out reduced pressure operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of power distribution network high-tension switch gear of the present invention.
Embodiment
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
As shown in Figure 1, the power distribution network high-tension switch cabinet monitoring device of the embodiment of the present invention, comprising: aspiration pump, for by the gas extraction in high-tension switch cabinet out, is supplied to gas sensor and detects.The entrance of aspiration pump is positioned at high-tension switch cabinet inside, inlet porting closed cell between high-tension switch cabinet and the entrance of aspiration pump, and it can close or open the entrance of aspiration pump.Aspiration pump has two outlets, and one of them outlet is connected with gas sensor, and the gas from gas sensor extracted out from this outlet detects wherein at least one gas componant, and another outlet is connected with the external world, for discharging the gas of high-tension switch cabinet inside.The switch of two outlets of entrance closed cell, aspiration pump is controlled by control module.
Gas sensor is arranged at high-tension switch cabinet outside, and its with aspiration pump exports and is connected, and can detect the content of at least one gas componant in aspiration pump gas bleeding.By the detection of this gas componant content, control module can judge in high-tension switch cabinet, whether equipment breaks down.Such as, can judge whether to occur shelf depreciation by the detection of ozone sensor for ozone content; Can judge whether to occur that sulfur hexafluoride is revealed for sulfur hexafluoride content detection by sulfur hexafluoride sensor, it is overheated etc. that the detection for hydrogen sulfide content judges whether to occur.
Air pressure monitor unit is arranged at high-tension switch cabinet inside, and it comprises baroceptor and data transfer unit, for detecting the air pressure of high-tension switch cabinet inside in real time, and testing result is real-time transmitted to control module.Control module is monitored in real time for the atmospheric pressure value of the detection of air pressure monitor unit, when the atmospheric pressure value increment that the atmospheric pressure value monitoring high-tension switch cabinet inside is greater than threshold value or specific continuous time is greater than threshold value, judge that the air pressure testing result in high-tension switch cabinet is abnormal.
When normal condition, entrance closed cell closes the entrance of aspiration pump.Aspiration pump and gas sensor are in dormant state.When air pressure testing result is abnormal, control module triggers described entrance closed cell, aspiration pump and gas sensor and opens, and opens the outlet between aspiration pump and gas sensor, closes aspiration pump and extraneous outlet.Gas sensor detects the content of the gas componant that aspiration pump is extracted out, according to testing result, control module judges whether high-tension switch cabinet occurs exception.
In the above-described embodiments, if there is abnormal gas due to high-tension switch cabinet inside, its air pressure certainly leads to change, before gas content detects, by the real-time monitoring of high-tension switch cabinet air pressure inside, judges whether to carry out gas content detection; Only when air pressure is abnormal, just high-tension switch cabinet is bled and carry out gas content detection, therefore, it is possible to avoid bleeding in real time the power equipment operation irregularity detecting and cause for high-tension switch cabinet.
Preferably, due to high-tension switch cabinet break down time, internal temperature pressure raise, in order to avoid air pressure raises the equipment and personal security problem caused, decompression operation can be carried out by control module and aspiration pump.When control module is according to the content of gas componant, when judging that high-tension switch cabinet occurs abnormal, control module closes gas sensor and the outlet between aspiration pump and gas sensor, opens the outlet between aspiration pump and the external world, is exhausted the gas in high-tension switch cabinet.If the air pressure of high-tension switch cabinet is higher than threshold value, but gas sensor detects that the content of gas componant is normal, control module closes gas sensor and the first outlet, open aspiration pump and the second outlet, gas in high-tension switch cabinet is exhausted until when the atmospheric pressure value of described high-tension switch cabinet inside is lower than specific threshold, close the second outlet and aspiration pump, and close the entrance of aspiration pump.If when the atmospheric pressure value increment of the specific continuous time of high-tension switch cabinet is greater than threshold value, but gas sensor detects that the content of gas componant is normal, control module closes gas sensor and the first outlet, open aspiration pump and the second outlet, gas in high-tension switch cabinet is exhausted until when the atmospheric pressure value of described high-tension switch cabinet inside is lower than specific threshold, close the second outlet and aspiration pump, and close the entrance of aspiration pump.
According to specific exemplary embodiment, invention has been described herein.It will be apparent under not departing from the scope of the present invention, carrying out suitable replacement to one skilled in the art or revise.Exemplary embodiment is only illustrative, instead of the restriction to scope of the present invention, and scope of the present invention is defined by appended claim.
Claims (1)
1. a power distribution network high-tension switch cabinet monitoring device, comprising: gas sensor, and described gas sensor is arranged at high-tension switch cabinet outside, can detect the content of at least one gas componant in the gas that aspiration pump is extracted out; Control module, described control module judges the state of high-tension switch cabinet according to the testing result of gas sensor; It is characterized in that: also comprise air pressure monitor unit, described air pressure monitor unit is positioned at the inside of high-tension switch cabinet, for detecting the air pressure of high-tension switch cabinet inside in real time, and testing result is real-time transmitted to described control module; According to the testing result of air pressure monitor unit and gas sensor, described control module judges whether high-tension switch cabinet occurs exception, when high-tension switch cabinet occurs abnormal, carry out decompression operation by control module and aspiration pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510554533.9A CN105067045B (en) | 2015-06-03 | 2015-06-03 | Power distribution network high-tension switch cabinet monitoring device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510554533.9A CN105067045B (en) | 2015-06-03 | 2015-06-03 | Power distribution network high-tension switch cabinet monitoring device |
| CN201510299050.9A CN104849414B (en) | 2015-06-03 | 2015-06-03 | System for distribution network of power high-tension switch cabinet monitoring method and device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510299050.9A Division CN104849414B (en) | 2015-06-03 | 2015-06-03 | System for distribution network of power high-tension switch cabinet monitoring method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105067045A true CN105067045A (en) | 2015-11-18 |
| CN105067045B CN105067045B (en) | 2018-02-16 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510554533.9A Expired - Fee Related CN105067045B (en) | 2015-06-03 | 2015-06-03 | Power distribution network high-tension switch cabinet monitoring device |
| CN201510299050.9A Expired - Fee Related CN104849414B (en) | 2015-06-03 | 2015-06-03 | System for distribution network of power high-tension switch cabinet monitoring method and device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510299050.9A Expired - Fee Related CN104849414B (en) | 2015-06-03 | 2015-06-03 | System for distribution network of power high-tension switch cabinet monitoring method and device |
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| Country | Link |
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| CN (2) | CN105067045B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548837A (en) * | 2015-12-15 | 2016-05-04 | 国家电网公司 | Defect warning device of insulating member in switch cabinet |
| CN105607674A (en) * | 2016-03-01 | 2016-05-25 | 国网山东省电力公司章丘市供电公司 | Control device for high voltage switch cabinet |
| CN105609340A (en) * | 2016-02-15 | 2016-05-25 | 成都格瑞思文化传播有限公司 | Novel fault indicating circuit |
| CN106291272A (en) * | 2016-07-22 | 2017-01-04 | 中国科学院电工研究所 | A kind of high voltage switch cabinet fault monitoring device |
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2015
- 2015-06-03 CN CN201510554533.9A patent/CN105067045B/en not_active Expired - Fee Related
- 2015-06-03 CN CN201510299050.9A patent/CN104849414B/en not_active Expired - Fee Related
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| CN105609340A (en) * | 2016-02-15 | 2016-05-25 | 成都格瑞思文化传播有限公司 | Novel fault indicating circuit |
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| CN106291272A (en) * | 2016-07-22 | 2017-01-04 | 中国科学院电工研究所 | A kind of high voltage switch cabinet fault monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105067045B (en) | 2018-02-16 |
| CN104849414A (en) | 2015-08-19 |
| CN104849414B (en) | 2016-06-22 |
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Effective date of registration: 20180122 Address after: 250012 Shandong Province, Ji'nan City Central Luoyuan Street No. 238 Applicant after: Jinan Power Supply Company, State Grid Shandong Electric Power Company Address before: Five street 055550 Xingtai city of Hebei province Ningjin County, Jia Kou Zhen Dong Ma Jia Zhuang Cun north No. 21 Applicant before: Han Shaoru |
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Granted publication date: 20180216 Termination date: 20200603 |