CN201327464Y - Density and humidity network monitoring device for SF6 circuit breaker of power system - Google Patents
Density and humidity network monitoring device for SF6 circuit breaker of power system Download PDFInfo
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- CN201327464Y CN201327464Y CNU2008202195659U CN200820219565U CN201327464Y CN 201327464 Y CN201327464 Y CN 201327464Y CN U2008202195659 U CNU2008202195659 U CN U2008202195659U CN 200820219565 U CN200820219565 U CN 200820219565U CN 201327464 Y CN201327464 Y CN 201327464Y
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Abstract
The utility model discloses a density and humidity network monitoring device for the SF6 circuit breaker of the power system; distributed monitoring terminal mater controllers are respectively connected with serial communication interfaces of a GPRS / GSM wireless module through serial communication interfaces, a host computer is used as a server, the host computer is connected with the network cable of the communications company, and the device is accessed to the Internet network and GPRS network; the ATMEGA128 single chip is taken as the mater controllers to the monitoring terminal; the mater controllers consists of a temperature sensor, a pressure sensor, a humidity sensor, a clock control circuit, a power supply system digital display device, an alarm instruction device, a debugging output circuit and communication interfaces. The device sends data to the monitoring center by the GPRS / GSM network, and receives the control signals sent by the monitoring center in an online way and implements the relevant operations, thereby realizing the on-line real-time monitoring to the SF6 gas density and humidity. The density and humidity network monitoring device has great significance to the safe operation and state inspection of the circuit breaker.
Description
Technical field
The utility model relates to a kind of electric system isolating switch network monitor device, is a kind of electric system SF6 circuit breaker gas network measuring device specifically, wherein relates to GPRS network establishment, gas temperature, pressure and Humidity Detection.
Background technology
SF
6The insulation and the arc extinction performance of gas excellence make SF
6Switchgear is widely used, at China SF
6The use amount of isolating switch is also increasing year by year.If SF
6Gas density reduces, and can cause the isolating switch compressive resistance to reduce, cut-off capacity and descend, and exceeding standard of humidity also can cause SF simultaneously
6The significantly reduction of gas-insulated performance.In order to ensure SF
6The safe operation of isolating switch, operation power department must be to SF
6The density of gas and water cut are carried out the strictness monitoring.At present, use mechanical type density monitor monitoring SF both at home and abroad mostly
6The density of gas is regularly used dew point hygrometer test SF
6The humidity of gas.The mechanical type density monitor can't be exported measured value except that output alarm and block signal, and the reading inconvenience can't realize remote measurement.And also there are many problems in regular off-line type Humidity Detection.Electronic technology and development of computer make and realize SF
6The digital on-line monitoring of gas density, humidity becomes possibility.
Tens even tens of all each electric pressure isolating switchs of each power transformation need that all monitor is installed and monitor, if there are 10 electric substations in each cities and towns, just need to be equipped with hundreds of cover monitor.By parity of reasoning, and an office net hundreds of cities and towns will need the such device of covers up to ten thousand, and control point quantity is many and disperse, for the establishment of monitor network has brought certain difficulty.
Along with development of Communication Technique, present available means of communication is a lot.According to the concrete condition of the distribution automation system of being implemented, each Utilities Electric Co. has selected different communication modes for use both at home and abroad, and its effect and benefit have nothing in common with each other.Abroad, Japan be distribution network automated develop than faster the country, its communication mode mainly is to utilize telecommunication cable and distribution line carrier to transmit distribution network automated signal, and in countries such as America and Europes, but the mode that extensively adopts cordless communication network to combine with wire communication.Domestic, power supply administrations such as Shanghai, Shijiazhuang, Dalian, Nanjing, Zhengzhou, Wuhan, Guangzhou have all carried out the distribution network automated project of construction of certain scale and have attempted, the communication mode that adopts has distribution carrier wave, one point for multiple address spread spectrum microwave, optical fiber communication, cable communication, wireless digital broadcasting station etc., but effect is unsatisfactory.At SF
6Isolating switch control point distribution situation adopts the remote monitoring of traditional cable network very difficult, even realize that cost cost, maintenance cost are also quite high.Therefore when isolating switch broke down or suffer artificial destruction, the situation of hindering can't in time be reflected to Surveillance center for some reason, has caused electric company's massive losses.Therefore the innovation of isolating switch supervisory system is imperative.
The GPRS public network is through years of development and perfect, network size, quality and capacity, all obtained huge improvement, network reliability, operation maintenance and management level also are greatly improved, and its networking has small investment, it is simple to safeguard, reliability is high, simple installation, speed are higher, realize the advantage that any location signal covers therefore being highly suitable for the native system networking.
Summary of the invention
The purpose of this utility model is to provide a kind of electric system SF
6Isolating switch density humidity network monitor device, the SF that it is made up of monitor, GPRS public network, Surveillance center's three parts
6Circuit breaker gas density, the online insulation monitor network of humidity can be implemented under the situation of not destroying breaker body and are used for SF
6The on-line monitoring of circuit breaker gas characterisitic parameter.
The technical solution of the utility model is as follows:
The primary controller of the monitor terminal of every dispersion connects the serial communication interface of GPRS/GSM wireless module respectively by serial communication interface, host computer is as server, and it connects the netting twine of commmunication company, inserts Internet net and GPRS net;
Above-mentioned monitor terminal is a monitor, it is to be primary controller with the ATMEGA128 single-chip microcomputer, temperature sensor, pressure transducer, humidity sensor, clock control circuit and power-supply system insert above-mentioned primary controller respectively, this primary controller output terminal connects digital display device, warning indicating device, debugging output circuit, and the communication interface circuit connects respectively states GPRS/GSM wireless module serial line interface and primary controller; Primary controller acquired signal, processing and various interface control, 12 A/D converters that the ATMEGA128 single-chip microcomputer carries realize conversion of signals such as temperature, pressure, humidity, send digital display device this locality to show after revising, compensating.
Above-mentioned monitor is to be primary controller with the ATMEGA128 single-chip microcomputer, and clock control circuit adopts integrated circuit PCF8563, and 5,6 pin link to each other with single- chip microcomputer 26,25 pins; The warning indicating device is to have warning, blocking function AD acquisition control circuit, and it adopts integrated circuit TLP521-4, and its 14,12,10 pin and single- chip microcomputer 7,8,9 pins link to each other; The serial communication interface circuit adopts integrated circuit TLP521-4 and MAX485ESA, and 27,28,29 pins of its 1,4,2 and 3 pin and single-chip microcomputer link to each other; Temperature sensor adopts integrated circuit DS1820, and its 2 pin link to each other with 34 pin of single-chip microcomputer; Pressure, humidity acquisition interface circuit DEMP end, PRES end are connected with single- chip microcomputer 60,61 pins; The feed circuit of input and circuit protection function power-supply system connect the VCC power pin of single- chip microcomputer 21,52; The jtag interface of debugging output circuit connects 54,55,56,57 pins of single-chip microcomputer, and ISP downloads 2,3,11,20 pins that line interface connects single-chip microcomputer, and above-mentioned display circuit connects single- chip microcomputer 31,32,11,12 pins.
Advantage of the present utility model is: 1, monitor replaces off-line type humidity measuring devices such as mechanical type density monitor and dew point hygrometer, is installed in the position of original mechanical type density monitor, realizes SF
6The on-line real time monitoring of gas density and humidity.By the GPRS/GSM network data are sent to Surveillance center, and the online control signal that receives Surveillance center's transmission is carried out associative operation.Thereby it is significant for the safe operation and the state-detection of isolating switch itself.
2, Surveillance center and GPRS wireless module communicate by GPRS and Internet network, realize every function of Centralized Monitoring.The mode that communicates to connect that communication network formation scheme adopts GPRS to combine with Internet, by using the current up-to-date GPRS/GSM communication technology, the convenience of arranging net, flexible, operation is reliable, cost is low.
3, monitor network is to a plurality of SF of different substation
6Isolating switch is monitored in real time; Reduced a lot of loaded down with trivial details maintenance test jobs, saved unnecessary expenses.
4, monitor can substitute the mechanical type density monitor fully, replaces off-line type moisture instrumentss such as dew point hygrometer, reduces the equipment investment expense;
In atmosphere, discharge SF when 5, having stopped in the past the off-line humidity measurement
6Gas had both been avoided the waste of gas, had reached environmental requirement again;
Prediction thus, monitoring network system are easy to large-scale promotion and use, and will create good society and economic benefit.
Description of drawings
Fig. 1 is the utility model syndeton synoptic diagram;
Fig. 2 is the utility model detector block scheme;
Fig. 3 is the utility model detector primary controller circuit theory diagrams;
Fig. 4 is the utility model detector clock control circuit schematic diagram;
Fig. 5 is that the utility model detector is reported to the police, the exclusive circuit schematic diagram;
Fig. 6 is the utility model detector communication interface circuit schematic diagram;
Fig. 7 is the utility model detector temperature sensor circuit schematic diagram;
Fig. 8 is the utility model detector pressure, humidity acquisition interface circuit theory diagrams;
Fig. 9 is the utility model detector feed circuit schematic diagrams;
Figure 10 is the utility model detector power indicating circuit schematic diagram;
Figure 11 is that the utility model detector power supply removes the lotus root circuit theory diagrams
Figure 12 is the utility model detector grounding circuit schematic diagram;
Figure 13 is the utility model detector debugging jtag interface circuit theory diagrams;
Figure 14 is that the utility model detector ISP downloads the line interface circuit theory diagrams;
Figure 15 is the utility model detector display circuit schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The primary controller of monitor terminal that can be seen every dispersion by Fig. 1 is respectively by serial communication transmission interface TXD with accept serial communication interface RXD, the TXD that interface RXD connects the GPRS/GSM wireless module, host computer is as server, it connects the netting twine of commmunication company, inserts the GPRS net by the Internet net.
Communication network constitutes the mode that communicates to connect that adopts GPRS to combine with Internet.Surveillance center be host computer by this mode that communicates to connect, the Centralized Monitoring terminal is the data message of monitor.The GPRS wireless module need be installed the SIM card of mobile operator, and opens gprs service.After the GPRS wireless module powers on, sign in to GPRS network through initialization operation, activation PDP Context, setting service quality rating, dial-up after connecting, access point apn by mobile Internet obtains outside ip address again, sets up the passage of visit Internet; Surveillance center with independent IP address links to each other with Internet.Surveillance center and GPRS wireless module communicate by GPRS and Internet network like this, realize every function of Centralized Monitoring.
Can see by Fig. 2, above-mentioned monitor terminal is a monitor, it is to be primary controller with the ATMEGA128 single-chip microcomputer, temperature sensor, pressure transducer, humidity sensor, clock control circuit and power-supply system insert above-mentioned primary controller respectively, this primary controller output terminal connects digital display device, warning indicating device, debugging output circuit, and the communication interface circuit connects respectively states GPRS/GSM wireless module serial line interface and primary controller; Primary controller acquired signal, processing and various interface control, 12 A/D converters that the ATMEGA128 single-chip microcomputer carries realize conversion of signals such as temperature, pressure, humidity, send digital display device this locality to show after revising, compensating.
Can see that by Fig. 3 above-mentioned monitor is is primary controller with the ATMEGA128 single-chip microcomputer, temperature sensor, pressure transducer, humidity sensor, clock control circuit and power-supply system, digital display device, warning indicating device, debugging output circuit, the annexation of communication interface circuit and primary controller can be seen by Fig. 3-12.
Can see that by Fig. 4 clock control circuit adopts integrated circuit PCF8563,5,6 pin link to each other with single- chip microcomputer 26,25 pins.
Can be seen that by Fig. 5 warning, indicating device are the AD acquisition control circuits with warning, locking merit, it adopts integrated circuit TLP521-4, and its 14,12,10 pin and single- chip microcomputer 7,8,9 pins link to each other.If SF
6Gas take place to leak or liquefaction, and this circuit can send alerting signal, if density further descends, latch switch will move, with protection equipment, prevent the generation of accident, LED
3-6Be corresponding humidity, pressure alarm and locking indication.
Can see that by Fig. 6 the serial communication interface circuit adopts integrated circuit TLP521-4 and MAX485ESA, 27,28,29 pins of its 1,4,2 and 3 pin and single-chip microcomputer link to each other.
Can see that by Fig. 7 temperature sensor adopts integrated circuit DS1820, its 2 pin link to each other with 34 pin of single-chip microcomputer.
Can see that by Fig. 8 pressure, humidity acquisition interface circuit PRES end, DEMP end are connected with single- chip microcomputer 61,60 pins.
By Fig. 9--12 can see the power-supply system of this monitor, and its feed circuit connect the VCC power pin of single- chip microcomputer 21,52; It also has power indicating circuit, power supply to remove the lotus root circuit, the ground protection circuit.
Can see debug i/f circuit by Figure 13,14,3,4,2,5 pin of jtag interface connect 54,55,56,57 pins of single-chip microcomputer, and ISP downloads 2,3,11,20 pins that line interface connects single-chip microcomputer.
It is made of two integrated circuit MAX7219ERG and LED1-4 can to see above-mentioned display circuit by Figure 15, connects single- chip microcomputer 31,32,11,12 pins.
Claims (2)
1, electric system SF
6Isolating switch density humidity network monitor device, it is characterized in that: the primary controller of the monitor terminal of every dispersion connects the serial communication interface of GPRS/GSM wireless module respectively by serial communication interface, host computer is as server, and it connects the netting twine of commmunication company, inserts Internet net and GPRS net;
Above-mentioned monitor terminal is a monitor, it is to be primary controller with the ATMEGA128 single-chip microcomputer, temperature sensor, pressure transducer, humidity sensor, clock control circuit and power-supply system insert above-mentioned primary controller respectively, this primary controller output terminal connects digital display device, warning indicating device, debugging output circuit, and the communication interface circuit connects respectively states GPRS/GSM wireless module serial line interface and primary controller; Primary controller acquired signal, processing and various interface control, 12 A/D converters that the ATMEGA128 single-chip microcomputer carries realize conversion of signals such as temperature, pressure, humidity, send digital display device this locality to show after revising, compensating.
2, electric system SF according to claim 1
6Isolating switch density humidity network monitor device is characterized in that: its monitor is to be primary controller with the ATMEGA128 single-chip microcomputer, and clock control circuit adopts integrated circuit PCF8563, and 5,6 pin link to each other with single-chip microcomputer 26,25 pins; The warning indicating device is to have warning, blocking function AD acquisition control circuit, and it adopts integrated circuit TLP521-4, and its 14,12,10 pin and single-chip microcomputer 7,8,9 pins link to each other; The serial communication interface circuit adopts integrated circuit TLP521-4 and MAX485ESA, and 27,28,29 pins of its 1,4,2 and 3 pin and single-chip microcomputer link to each other; Temperature sensor adopts integrated circuit DS1820, and its 2 pin link to each other with 34 pin of single-chip microcomputer; Pressure, humidity acquisition interface circuit DEMP end, PRES end are connected with single-chip microcomputer 60,61 pins; The feed circuit of input and circuit protection function power-supply system connect the VCC power pin of single-chip microcomputer 21,52; The jtag interface of debug i/f circuit connects 54,55,56,57 pins of single-chip microcomputer, and ISP downloads 2,3,11,20 pins that line interface connects single-chip microcomputer, and above-mentioned display circuit connects single-chip microcomputer 31,32,11,12 pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202195659U CN201327464Y (en) | 2008-11-15 | 2008-11-15 | Density and humidity network monitoring device for SF6 circuit breaker of power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202195659U CN201327464Y (en) | 2008-11-15 | 2008-11-15 | Density and humidity network monitoring device for SF6 circuit breaker of power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201327464Y true CN201327464Y (en) | 2009-10-14 |
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ID=41179436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202195659U Expired - Fee Related CN201327464Y (en) | 2008-11-15 | 2008-11-15 | Density and humidity network monitoring device for SF6 circuit breaker of power system |
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|---|---|
| CN (1) | CN201327464Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893616A (en) * | 2010-04-21 | 2010-11-24 | 上海哈德电气技术有限公司 | Intelligent monitoring system for power system SF6 switching station |
| CN102023631A (en) * | 2010-12-17 | 2011-04-20 | 北京布莱迪仪器仪表有限公司 | Method for checking temperature compensation accuracy of SF6 density controller |
| CN103095944A (en) * | 2011-10-31 | 2013-05-08 | 郑州康联安防科技有限公司 | Alarming information transmission method and alarming system based on general packet radio service (GPRS) |
| CN103913671A (en) * | 2014-04-30 | 2014-07-09 | 江苏精一电气科技有限公司 | Electric conduction aluminum busbar with insulating monitoring function |
| CN104183108A (en) * | 2014-09-11 | 2014-12-03 | 国家电网公司 | SF6 switch alarm and blocking signal wireless transmission device |
-
2008
- 2008-11-15 CN CNU2008202195659U patent/CN201327464Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893616A (en) * | 2010-04-21 | 2010-11-24 | 上海哈德电气技术有限公司 | Intelligent monitoring system for power system SF6 switching station |
| CN102023631A (en) * | 2010-12-17 | 2011-04-20 | 北京布莱迪仪器仪表有限公司 | Method for checking temperature compensation accuracy of SF6 density controller |
| CN102023631B (en) * | 2010-12-17 | 2013-03-20 | 北京布莱迪仪器仪表有限公司 | Method for checking temperature compensation accuracy of SF6 density controller |
| CN103095944A (en) * | 2011-10-31 | 2013-05-08 | 郑州康联安防科技有限公司 | Alarming information transmission method and alarming system based on general packet radio service (GPRS) |
| CN103913671A (en) * | 2014-04-30 | 2014-07-09 | 江苏精一电气科技有限公司 | Electric conduction aluminum busbar with insulating monitoring function |
| CN104183108A (en) * | 2014-09-11 | 2014-12-03 | 国家电网公司 | SF6 switch alarm and blocking signal wireless transmission device |
| CN104183108B (en) * | 2014-09-11 | 2017-04-05 | 国家电网公司 | SF6Switch alarm and block signal radio transmitting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20101115 |