CN207528861U - A kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas - Google Patents
A kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas Download PDFInfo
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- CN207528861U CN207528861U CN201721557090.XU CN201721557090U CN207528861U CN 207528861 U CN207528861 U CN 207528861U CN 201721557090 U CN201721557090 U CN 201721557090U CN 207528861 U CN207528861 U CN 207528861U
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- switch cabinet
- detection
- tension switch
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model is related to a kind of status early warning devices suitable for the detection of high-tension switch cabinet internal gas, and including power module, the power module is gas detection module, digital sampling and processing, result output module, alarm module provide electric energy；Gas detection module is used to detect generated gas during high-tension switch cabinet internal fault；Digital sampling and processing after carrying out integrated treatment to the gas component content data detected via gas detection module, makes accurate evaluation to switchgear state of insulation, sends alarm module and result output module to；As a result output module is used for dispaly state assessment result；Alarm module sends out corresponding alarm signal according to condition evaluation results.The present apparatus can complete detection inside switch cabinet gas component content, according to assessment result real-time display switchgear current state, realize that gas detection status assessment is intelligent, solve the problems, such as current switch cabinet state detection early warning, improve switchgear O＆M efficiency.
Description
Technical field
The utility model belongs to high-voltage test technical field, and in particular to one kind is suitable for gas inside high-tension switch cabinet
The status early warning device that physical examination is surveyed.
Background technology
As the important equipment in electric system (power plant, substation), high-tension switch cabinet, which carries, cut-offs and closes electricity
The vital task on line of force road realizes conveying and switches electric load and faulty equipment or faulty line are exited electric system
Function, it is ensured that securely and reliably fortune is skilful for system for electricity.
In long term power operational process, insulating part in high-tension switch cabinet may due to aging, contact resistance is excessive, mistake
Heat, the leakage of SF6 gases, shelf depreciation etc. cause faulty operation or even cause serious power system accident.Prior art research
Mainly realized by infra-red thermal imaging, high-frequency ultrasonic detection device to heating accident, fault detection of local discharge；It is however high
The fault type in cabinet that compresses switch is far above heating accident, partial discharges fault and SF6 gas leakage failures, such as high-tension switch cabinet
Interior organic insulation component for example casing, supporting insulator, contact box, insulating cylinder, compound inslation sub-component, wire insulation, absolutely
Edge paper etc. can form leakage current, and then cause organic material different degrees of under moist filthy state on organic material surface
Carbonization, cause organic material short-circuit, the final generation for causing electric power accident.
The fault type occurred in enclosed switch electric appliance is closed with the deterministic association of the gas and derivative that generate
System, by the gaseous species and content generated in detection switch cabinet, can back analysis go out the insulation fault occurred in switchgear
Type and position.Judgement early warning is carried out when it will break down, can timely find and releases potential faults, is ensured
The safe and reliable operation of electric system.
Based on the above situation and present situation, a kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas is proposed
Thinking, and pass through technological means and be achieved, to solve the problems, such as that switchgear gas detects early warning.
Utility model content
The utility model provides a kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas, can be effective
Gas in detection switch cabinet, while fault type is prompted, and timely early warning.
The technical solution of the utility model is：A kind of status early warning dress suitable for the detection of high-tension switch cabinet internal gas
It puts, including,
Inside high-tension switch cabinet, for detecting the gas detection module of high-tension switch cabinet internal gas, the gas of detection
Body includes ammonia, carbon dioxide, hydrogen cyanide, ozone, nitric oxide, nitrogen dioxide, carbon monoxide, hydrogen, methane and sulfide
And fluoride；
It is connected with gas detection module, for being combined analysis to the gas that gas detection module detects, and judges
Occurs the digital sampling and processing with combination of gases dependent failure type inside high-tension switch cabinet；
It is connected with digital sampling and processing, for showing the result output module of fault type；
It is connected with digital sampling and processing, for sending corresponding warning the alarm module of signal according to fault type；
For providing the power module of electric energy for gas detection module, the power module is the electricity in traditional LNK circuits
Source output terminal mouth setting capacitance forms division power supply.
Preferably, the power output end of the power module is equipped with voltage-stabiliser tube.
Preferably, the gas detection module includes ammonia gas sensor, carbide sensor, hydrogen cyanide sensor, ozone
Sensor, nitride sensor, hydrogen gas sensor, methane transducer and sulphur, fluoride sensor.
Preferably, the result output module is liquid crystal display, touch display screen or projection device.
Preferably, the alarm module is phonetic alarm.
Compared with prior art, the utility model has the advantage of：
(1) the utility model is in traditional LNK circuit theories using the power module of optimization LNK power control circuits
On the basis of, division power supply is formed using capacitance is installed additional in output port of power source, reduces electricity of the power supply to digital sampling and processing
Magnetic disturbance improves the accuracy rate of gas check and evaluation, and power supply is exported by way of installing voltage-stabiliser tube additional and carries out voltage stabilizing limit
Width so that circuit has controllability.
(2) gas detection module in the utility model is made of multiple sensor, and the gas of detection is more comprehensive, data
Acquisition processing module uses multi-sensor information fusion treatment technology, can more accurately judge high-voltage board by combination of gases analysis
Fault type reflects that state is more accurate in switchgear, when state is failure, sends out corresponding pre-warning signal.
(3) the result output module in the utility model, can be with real-time display switchgear current state, when state is failure
When, it shows fault type, helps operation maintenance personnel timely processing, realize that gas detection status assessment is intelligent, solve switch at present
Cabinet state-detection early warning problem improves switchgear O＆M efficiency.
Description of the drawings
Fig. 1 is the modular structure schematic diagram of the utility model embodiment；
Fig. 2 is to optimize LNK power control circuit schematic diagrams in the utility model embodiment；
Fig. 3 differentiates for the utility model embodiment fault type and status early warning flow chart；
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
If Fig. 1 is a kind of module knot of the status early warning device detected suitable for high-tension switch cabinet internal gas of the present embodiment
Structure schematic diagram.The utility model device includes：Inside high-tension switch cabinet, for detecting the gas of high-tension switch cabinet internal gas
Body detection module, the gas detection module include ammonia gas sensor, carbide sensor, hydrogen cyanide sensor, ozone sensing
Device, nitride sensor, hydrogen gas sensor, methane transducer and sulphur, fluoride sensor, the gas of detection include ammonia, one
Carbonoxide, carbon dioxide, hydrogen cyanide, ozone, nitric oxide, nitrogen dioxide, hydrogen, methane and sulfide and fluoride；
It is connected with gas detection module, for being combined analysis to the gas that gas detection module detects, and judges
Occurs the digital sampling and processing with combination of gases dependent failure type inside high-tension switch cabinet；
It is connected with digital sampling and processing, for showing the result output module of fault type；The result exports mould
Block is liquid crystal display, touch display screen or projection device；
It is connected with digital sampling and processing, for sending corresponding warning the alarm module of signal according to fault type；Institute
Alarm module is stated as phonetic alarm；
For providing the electricity of electric energy for gas detection module, digital sampling and processing, result output module, alarm module
Source module, the power module be the output port of power source setting capacitance in traditional LNK circuits to form division power supply, and electricity
The power output end of source module is equipped with voltage-stabiliser tube.As shown in Fig. 2, this power supply uses AC input modes, pass through traditional LNK circuits
The power supply that principle formation uses for gas detection cell, while install capacitance C6 and C7 additional in output port and form two-stage output
Power supply is divided, improves the electromagnetic interference of power supply reliability and reduction to sensor.Install stable-pressure device VD5 and VD6 increasing additional simultaneously
The stability of output is powered up, has the function that voltage stabilizing amplitude limit.
Wherein, different types of event inside high-tension switch cabinet is judged according to following combination of gases in digital sampling and processing
Barrier：
Overheat, which occurs, for the organic insulation part in high-tension switch cabinet organic material to be caused to be pyrolyzed, and thermal decomposition product has with temperature
It closes：The conductor for being surrounded by insulation overheats general temperature at 100~200 DEG C, and referred to as less than 200 DEG C of low temperature superheating can produce
Raw characteristic gas carbon dioxide and carbon monoxide；Cable or busbar office caused by Lightning Over-voltage or the bad grade of contact
Portion's overheat, calcination, it will usually form apparent carbonization channel, temperature is usually more than 200 DEG C, referred to as 200~400 DEG C of high temperature
Superheating can generate characteristic gas carbon dioxide, carbon monoxide, ammonia, hydrogen cyanide, methane.
Shelf depreciation, which occurs, for the equipment of high-tension switch cabinet can lead to air ionization：Usually in manufacture, installation, operational process
Low energy densities shelf depreciation caused by insulating part face crack, void defects can generate characteristic gas carbon dioxide, an oxidation
Carbon, ozone, nitrogen dioxide etc.；When shelf depreciation causes solid insulating material spark tracking or perforation occur, at contact box
Electric discharge between electric discharge, the hidden danger electric discharge at cable, busbar and wall bushing etc., then referred to as high-energy density shelf depreciation, meeting
Generate characteristic gas carbon dioxide, carbon monoxide, ozone, nitrogen dioxide, methane.
SF6 breakers leak in high-tension switch cabinet, and SF6 sensors can then detect SF6 gases and its decomposition product.
It is analyzed and determined according to above, as a result output module shows corresponding fault type, and phonetic alarm sends out corresponding
Alarm signal, if less than 200 DEG C of low temperature superheating, low energy densities partial discharges fault occurs, alarm signal sends out language
Sound prompts fault type, to the location of fault emphasis inspection may occur during maintenance, excludes hidden danger；If generation 200~
400 DEG C of high temperature superheating, high-energy density partial discharges fault, SF6 leakage failures, then alarm signal provide voice prompt
Fault type, and voice warning is sent out, the high-tension switch cabinet is overhauled immediately, prevents more major accident.
Fig. 3 differentiates for fault type and status early warning flow chart, in the present embodiment, the power supply of electric power source pair of module single unit system,
The gas component in switchgear is detected using the multipath gas sensor in gas detection module；Signal is detected again by counting
After carrying out comprehensive analysis to acquisition signal by multi-sensor information fusion treatment technology according to acquisition processing module, to switching cabinet
State makes accurate evaluation, sends alarm module and result output module to；The result output module is assessed for dispaly state
As a result, as being failure, show possible breakdown type, reference is provided for operation maintenance personnel；The alarm module is according to status assessment knot
Fruit is such as malfunction, sends out corresponding alarm signal.
The protection domain of utility model is not limited to the above embodiments, it is clear that those skilled in the art can be to this
Utility model carries out various changes and deformation without departing from the scope of the utility model and spirit.If these changes and deformation belong to
In the range of the claims of the present invention and its equivalent technology, then the intention of the utility model also comprising these changes and becomes
Including shape.
Claims (5)
1. a kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas, which is characterized in that including：
Inside high-tension switch cabinet, for detecting the gas detection module of high-tension switch cabinet internal gas, the gas packet of detection
Include ammonia, carbon dioxide, hydrogen cyanide, ozone, nitric oxide, nitrogen dioxide, carbon monoxide, hydrogen, methane and sulfide and fluorine
Compound；
It is connected with gas detection module, for being combined analysis to the gas that gas detection module detects, and judges high pressure
There is the digital sampling and processing with combination of gases dependent failure type in inside switch cabinet；
It is connected with digital sampling and processing, for showing the result output module of fault type；
It is connected with digital sampling and processing, for sending corresponding warning the alarm module of signal according to fault type；
For providing the power supply mould of electric energy for gas detection module, digital sampling and processing, result output module, alarm module
Block, the power module are the output port of power source setting capacitance composition division power supplys in traditional LNK circuits.
2. a kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas according to claim 1, special
Sign is：The power output end of the power module is equipped with voltage-stabiliser tube.
3. a kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas according to claim 2, special
Sign is：The gas detection module includes ammonia gas sensor, carbide sensor, hydrogen cyanide sensor, ozone sensor, nitrogen
Compound sensor, hydrogen gas sensor, methane transducer and sulphur, fluoride sensor.
4. a kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas according to claim 3, special
Sign is：The result output module is liquid crystal display, touch display screen or projection device.
5. a kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas according to claim 4, special
Sign is：The alarm module is phonetic alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721557090.XU CN207528861U (en) | 2017-11-15 | 2017-11-15 | A kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721557090.XU CN207528861U (en) | 2017-11-15 | 2017-11-15 | A kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas |
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| Publication Number | Publication Date |
|---|---|
| CN207528861U true CN207528861U (en) | 2018-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721557090.XU Expired - Fee Related CN207528861U (en) | 2017-11-15 | 2017-11-15 | A kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727585A (en) * | 2017-09-25 | 2018-02-23 | 国网重庆市电力公司电力科学研究院 | A kind of gas controlling device applied to high-voltage switch gear |
| CN109186786A (en) * | 2018-10-10 | 2019-01-11 | 西安交通大学 | Whether a kind of monitoring electrical equipment is in electrical contact the devices and methods therefor of overheat |
| CN109454643A (en) * | 2018-08-14 | 2019-03-12 | 国网浙江省电力有限公司 | A kind of substation's indoor environment hidden danger recognition methods and inspecting robot |
| CN109612652A (en) * | 2018-12-12 | 2019-04-12 | 云南电网有限责任公司电力科学研究院 | A kind of N2Insulated switch cabinet gas leak detection method |
| CN109856513A (en) * | 2019-02-25 | 2019-06-07 | 武汉大学 | A kind of gas monitoring method of XPLE cable local discharge or overheat |
| CN110137813A (en) * | 2019-04-30 | 2019-08-16 | 上海智大电子有限公司 | A kind of ACU control cabinet suitable for pipe gallery environment |
| CN110187244A (en) * | 2019-04-30 | 2019-08-30 | 国网山西省电力公司电力科学研究院 | A kind of fault detection means and method for switchgear |
| CN110940642A (en) * | 2019-12-13 | 2020-03-31 | 西安锐驰电器有限公司 | Gas detection system and detection method for high-low voltage switch cabinet |
| CN111175204A (en) * | 2020-01-16 | 2020-05-19 | 国网天津市电力公司电力科学研究院 | Method for monitoring particulate matters and abnormal components in air inside switch cabinet |
| CN111198540A (en) * | 2018-11-19 | 2020-05-26 | 故城北新建材有限公司 | Equipment monitoring method and device |
| CN111220881A (en) * | 2019-11-18 | 2020-06-02 | 南京航空航天大学 | Optical fiber detection device for detecting discharge fault of high-voltage bushing |
| TWI753707B (en) * | 2020-07-22 | 2022-01-21 | 威盛電子股份有限公司 | Gas leak detection device and gas leak detection method |
| CN115015699A (en) * | 2022-04-21 | 2022-09-06 | 国网安徽省电力有限公司电力科学研究院 | Insulation fault early warning on-line monitoring system applied to medium-voltage switch cabinet |
| CN115575522A (en) * | 2022-09-13 | 2023-01-06 | 广西电网有限责任公司电力科学研究院 | Method for judging overheating fault of solid insulating material in air-insulated high-voltage switch cabinet |
-
2017
- 2017-11-15 CN CN201721557090.XU patent/CN207528861U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107727585A (en) * | 2017-09-25 | 2018-02-23 | 国网重庆市电力公司电力科学研究院 | A kind of gas controlling device applied to high-voltage switch gear |
| CN109454643A (en) * | 2018-08-14 | 2019-03-12 | 国网浙江省电力有限公司 | A kind of substation's indoor environment hidden danger recognition methods and inspecting robot |
| CN109186786A (en) * | 2018-10-10 | 2019-01-11 | 西安交通大学 | Whether a kind of monitoring electrical equipment is in electrical contact the devices and methods therefor of overheat |
| CN111198540A (en) * | 2018-11-19 | 2020-05-26 | 故城北新建材有限公司 | Equipment monitoring method and device |
| CN109612652A (en) * | 2018-12-12 | 2019-04-12 | 云南电网有限责任公司电力科学研究院 | A kind of N2Insulated switch cabinet gas leak detection method |
| CN109856513A (en) * | 2019-02-25 | 2019-06-07 | 武汉大学 | A kind of gas monitoring method of XPLE cable local discharge or overheat |
| CN110137813A (en) * | 2019-04-30 | 2019-08-16 | 上海智大电子有限公司 | A kind of ACU control cabinet suitable for pipe gallery environment |
| CN110187244A (en) * | 2019-04-30 | 2019-08-30 | 国网山西省电力公司电力科学研究院 | A kind of fault detection means and method for switchgear |
| CN111220881A (en) * | 2019-11-18 | 2020-06-02 | 南京航空航天大学 | Optical fiber detection device for detecting discharge fault of high-voltage bushing |
| CN110940642A (en) * | 2019-12-13 | 2020-03-31 | 西安锐驰电器有限公司 | Gas detection system and detection method for high-low voltage switch cabinet |
| CN111175204A (en) * | 2020-01-16 | 2020-05-19 | 国网天津市电力公司电力科学研究院 | Method for monitoring particulate matters and abnormal components in air inside switch cabinet |
| TWI753707B (en) * | 2020-07-22 | 2022-01-21 | 威盛電子股份有限公司 | Gas leak detection device and gas leak detection method |
| CN115015699A (en) * | 2022-04-21 | 2022-09-06 | 国网安徽省电力有限公司电力科学研究院 | Insulation fault early warning on-line monitoring system applied to medium-voltage switch cabinet |
| CN115575522A (en) * | 2022-09-13 | 2023-01-06 | 广西电网有限责任公司电力科学研究院 | Method for judging overheating fault of solid insulating material in air-insulated high-voltage switch cabinet |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20181115 |