CN2935174Y - CAN bus network based high-voltage switch room sulfur hexafluoride warning device - Google Patents
CAN bus network based high-voltage switch room sulfur hexafluoride warning device Download PDFInfo
- Publication number
- CN2935174Y CN2935174Y CN 200620116715 CN200620116715U CN2935174Y CN 2935174 Y CN2935174 Y CN 2935174Y CN 200620116715 CN200620116715 CN 200620116715 CN 200620116715 U CN200620116715 U CN 200620116715U CN 2935174 Y CN2935174 Y CN 2935174Y
- Authority
- CN
- China
- Prior art keywords
- data
- warning device
- bus network
- bus
- humidity
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model consisting of a control host and a multi-parameter site acquisition terminal relates to a warning set detecting the hexafluorated sulphur in the high-tension switch house. The control host and the multi-parameter site acquisition terminal individually have a CAN interface port connecting to the CAN-bus. The multi-parameter site acquisition terminal includes a high voltage control circuit, an A/D converter and a CAN interface circuit, can acquire the temperature, the humidity level and the high-pressure discharge current. When the discharge current decreases, the monolithic processor integrates the data of the current humidity and temperature, processes the data in a comprehensive way to get the approximate SF<6> gas concentration, then compares the data with the given concentration threshold, once the concentration gotten exceeds the threshold, a status of gas leak can be affirmed; then, the communication priority level of the terminal is set to be high, the data is transmitted to the control host through the CAN-bus. The utility can detect the temperature, the humidity and the high pressure discharge current of the site, thus guarantees the comprehensive information for determining whether the status of SF<6>occurs.
Description
Technical field
The utility model relates to high-voltage switch gear chamber sulfur hexafluoride and detects and the early-warning and predicting field, particularly relates to a kind of sulfur hexafluoride prior-warning device of distributed network.
Background technology
Be applied to high-voltage switch gear chamber (GIS) from sulfur hexafluoride (SF6) because of its excellent insulating property, through years of development, this technology has reached very high level, and it almost becomes unique insulation and the arc-extinguishing medium of high pressure, UHV (ultra-high voltage) and extra-high voltage field GIS.But because under the factor affecting such as high-voltage arc, spark discharge and high temperature, SF
6Can decompose, reduce its insulation and arc extinction performance, and its analyte runs into can decompose behind the moisture and generates harmful poisonous gas; And the SF of GIS inside
6Gaseous tension descends.Therefore, industry standard DL/T596-1996 " power equipment preventive trial rules " is to SF in service
6The test event of gas and cycle have proposed strict requirement.GIS is carried out on-line detection method both at home and abroad at present and mainly contain two kinds: a kind of is to detect SF
6The pressure apparatus of gas, the sensitivity of this device is lower, and belongs to warning afterwards.Another kind is the online Partial Discharge Detection of GIS, but it can not react the concrete position of leaking of whole GIS.Therefore, utility model patent (patent No. ZL 200420080893.7) has been invented a kind of pick-up unit that connects by bus, the GIS insulating property is detected to reach long-term real-time online detect SF
6Purpose; But, be interfered easily in actual use and produce wrong leakage information because insulating property are subjected to humidity effect very big.
Summary of the invention
The purpose of this utility model is to adopt Field Bus CAN to constitute the inner distributed on-line measurement network of GIS, and temperature, humidity and the effluve electric current of monitoring point are measured, provide a kind of can be practical, SF
6On-line monitoring and prior-warning device.
For realizing that the technical scheme that the utility model purpose of design adopts is: a kind of sulfur hexafluoride prior-warning device based on the CAN bus network comprises that a plurality of on-the-spot multi-parameters sampling terminals and main control system two parts constitute.On-the-spot multi-parameters sampling terminal part comprises by moisture measurement unit, temperature measurement unit, effluve and detecting unit to be formed.Main control system, on-the-spot multi-parameters sampling terminal have a CAN interface respectively, are connected to the CAN bus network.Humidity sensor, temperature sensor link to each other with the corresponding I/O mouth analog to digital conversion end of single-chip microcomputer respectively.
The beneficial effects of the utility model are can measure temperature, humidity and the effluve electric current of monitoring point simultaneously, for judging whether that SF6 takes place provides comprehensive data foundation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a device composition frame chart of the present utility model.
Fig. 2 is the structural drawing of on-the-spot multi-parameters sampling terminal part among Fig. 1
In Fig. 1, (1) is the main control system part of device, and (2) are on-the-spot multi-parameters sampling terminal parts, and (3) are the Field Bus CAN networks that connects communication between main control system (1) and (2) two parts of on-the-spot multi-parameters sampling terminal.
In Fig. 2, (4) be the control core single-chip microcomputer of on-the-spot multi-parameters sampling terminal part, (5) be the DIP toggle switch, be used to identify the numbering ID of this device, (6) be the CAN bus interface circuit, (7) are high-voltage control circuits, and (8) are Humidity Detection, (9) be temperature detection, (10) are the effluve current detection circuits.
Embodiment
As shown in Figure 1, a kind of sulfur hexafluoride prior-warning device based on the CAN bus network is made up of a main control system (1), a plurality of on-the-spot multi-parameters sampling terminals (2) (number of collection in worksite terminal depends on application need) and CAN bus network (3), main control system (1) links to each other with CAN bus network (3), and multi-parameters sampling terminal (2) also is connected with CAN bus network (3).
As shown in Figure 2, on-the-spot multi-parameters sampling terminal (2) is formed and is connected successively by single-chip microcomputer (4), DIP toggle switch (5), CAN bus interface circuit (6), high-voltage control circuit (7), Humidity Detection (8), temperature detection (9) and effluve current detection circuit (10).Humidity Detection (8), temperature detection (9) and effluve current detection circuit (10) are connected to the A/D input end of single-chip microcomputer (4).DIP toggle switch (5) links to each other with single-chip microcomputer (4).CAN bus interface circuit (6) links to each other with single-chip microcomputer (4).Single-chip microcomputer (4) links to each other with high-voltage control circuit (7).High-voltage control circuit (7) links to each other with effluve current detection circuit (10).
Its course of work is: on-the-spot multi-parameters sampling terminal (2) is regularly measured temperature, humidity and the effluve electric current of monitoring point, and when discharge current diminished, single-chip microcomputer (4) carried out integrated data processing in conjunction with current humidity and temperature data, the SF of acquisition
6Gas concentration, and and the concentration thresholding that is kept among the EEPROM compare, if surpass threshold value, illustrate the gas leakage has taken place, be not set to the highest then the CAN communication priority rank of this terminal, current data is sent in the CAN bus network (3), data are sent in the main control system (1) of appointment by the CAN bus.
Claims (4)
1, the indoor sulfur hexafluoride prior-warning device of a kind of high-voltage switch gear based on the CAN bus network is characterized in that this device comprises that a main control system, two parts of a plurality of on-the-spot multi-parameters sampling terminal constitute, and link to each other by the CAN bus network; On-the-spot multi-parameters sampling terminal comprises single-chip microcomputer, DIP toggle switch, CAN bus interface circuit, high-voltage control circuit and effluve current detection circuit composition and is connected successively.
2,, it is characterized in that main control system, collection in worksite terminal have a CAN interface respectively, are connected to the CAN bus network according to the described prior-warning device of claim 1.
3,, it is characterized in that humidity sensor directly links to each other with an I/O mouth analog to digital conversion end of single-chip microcomputer according to the described prior-warning device of claim 1.
4,, it is characterized in that temperature sensor directly links to each other with an I/O mouth analog-converted end of single-chip microcomputer according to the described device of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620116715 CN2935174Y (en) | 2006-05-19 | 2006-05-19 | CAN bus network based high-voltage switch room sulfur hexafluoride warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620116715 CN2935174Y (en) | 2006-05-19 | 2006-05-19 | CAN bus network based high-voltage switch room sulfur hexafluoride warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2935174Y true CN2935174Y (en) | 2007-08-15 |
Family
ID=38351863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620116715 Expired - Fee Related CN2935174Y (en) | 2006-05-19 | 2006-05-19 | CAN bus network based high-voltage switch room sulfur hexafluoride warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2935174Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806791A (en) * | 2010-03-19 | 2010-08-18 | 重庆电力科学试验研究院 | Method for failure detection of sulfur hexafluoride electric device |
| CN101464671B (en) * | 2007-12-20 | 2012-07-11 | 郑召兴 | Apparatus and method for monitoring sulfur hexafluoride gas and its derived gas |
| CN101561427B (en) * | 2009-05-15 | 2013-07-17 | 江苏大学 | Pig house environment harmful gas multi-point measurement system based on CAN field bus |
| CN103698477A (en) * | 2013-12-18 | 2014-04-02 | 广东电网公司潮州供电局 | Visual monitoring method and system for concentration of SF6 gas in GIS (gas insulated substation) chamber |
-
2006
- 2006-05-19 CN CN 200620116715 patent/CN2935174Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101464671B (en) * | 2007-12-20 | 2012-07-11 | 郑召兴 | Apparatus and method for monitoring sulfur hexafluoride gas and its derived gas |
| CN101561427B (en) * | 2009-05-15 | 2013-07-17 | 江苏大学 | Pig house environment harmful gas multi-point measurement system based on CAN field bus |
| CN101806791A (en) * | 2010-03-19 | 2010-08-18 | 重庆电力科学试验研究院 | Method for failure detection of sulfur hexafluoride electric device |
| CN103698477A (en) * | 2013-12-18 | 2014-04-02 | 广东电网公司潮州供电局 | Visual monitoring method and system for concentration of SF6 gas in GIS (gas insulated substation) chamber |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201188050Y (en) | On-line monitoring device for SF6 gas leakage base on multi-sensor | |
| CN109633423B (en) | Circuit breaker spout ablation state evaluation system | |
| CN101782614A (en) | Device for detecting breakdown of sulfur hexafluoride gas-insulated electrical equipment | |
| CN2935174Y (en) | CAN bus network based high-voltage switch room sulfur hexafluoride warning device | |
| CN110954788B (en) | Gas component monitoring device, equipment running state monitoring method and terminal equipment | |
| CN103149324A (en) | Method and device for high-tension switch cabinet gas detection | |
| CN110927267A (en) | Gas insulated switchgear fault diagnosis method based on decomposition component analysis method | |
| CN201673147U (en) | Portable GIS combined electrical apparatus fault gas detector | |
| CN104111410B (en) | Sulfur hexafluoride electrical equipment insulation fault monitoring method, device and equipment | |
| CN205246133U (en) | A intelligent monitoring device for joining in marriage power -grid switch cabinet | |
| CN204346980U (en) | A kind of detector for SF6 gas concentration on-line monitoring | |
| CN203148469U (en) | Monitoring device for switch cabinet environment parameters based on ZigBee network | |
| CN106443306A (en) | Wireless patrolling device for dielectric oil of oil-immersed transformer and patrolling method | |
| CN205246134U (en) | Power -grid switch is intelligent monitoring device for cabinet | |
| CN205157141U (en) | GIS equipment sulfur hexafluoride leak detection device based on image identification technology | |
| CN111239573A (en) | Online diagnosis method and device for internal fault of sulfur hexafluoride electrical equipment | |
| CN206362860U (en) | A kind of test device of GIS or GIL equipment loop resistance | |
| CN201828288U (en) | Device for on-line monitoring on moisture, density and temperature of SF6 gas | |
| CN201837411U (en) | Novel full digital SF6 gas comprehensive on-line monitor | |
| CN101949740A (en) | Novel all-digital SF6 gas and micro water online monitor | |
| CN102788918A (en) | Method for applying gas to detect and diagnose internal fault of sulfur hexafluoride electrical equipment | |
| CN209878537U (en) | Micro-water density transmitter and SF using same6Micro-water density on-line monitoring system | |
| CN113758653A (en) | Method for monitoring SF6 density relay in real time and pre-judging air leakage | |
| CN207248418U (en) | A kind of GIS internal pressure monitoring devices based on wireless communication | |
| CN105093103A (en) | SF6 breaker state monitoring method and thionyl fluoride gas concentration monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |