CN201497769U - Power grid master line and branch line power failure screening system - Google Patents
Power grid master line and branch line power failure screening system Download PDFInfo
- Publication number
- CN201497769U CN201497769U CN2009202257113U CN200920225711U CN201497769U CN 201497769 U CN201497769 U CN 201497769U CN 2009202257113 U CN2009202257113 U CN 2009202257113U CN 200920225711 U CN200920225711 U CN 200920225711U CN 201497769 U CN201497769 U CN 201497769U
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- branch line
- voltage
- power failure
- power grid
- 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
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides a power grid master line and branch line power failure screening system, which comprises a host machine arranged in an electrical supply company, a receiver and monitors, wherein the monitors are arranged on low-voltage sides of different transformers at the lower end of a vacuum switch. The power grid master line and branch line power failure screening system is characterized in that the monitors have two sets, each set of monitor comprises a voltage monitoring module, a single chip microcomputer U and a radio transmission module, wherein an input end of the voltage monitoring module is connected with low-voltage output ends of the transformers while an output end of the voltage monitoring module is connected with the single chip microcomputer U, and an output end of the single chip microcomputer U is connected with the radio transmission module via a communication port. When a transformer substation supplies power normally, the host machine receives power grid operation signals transmitted by the monitors via the receiver, performs comparison judgment, accurately screens whether the vacuum switch on the power grid master line is in tripping fault during operation of the power grid or the transformers and lower circuits thereof on the power branch line are in fault, and then dispatches maintenance personnel of corresponding departments to fields.
Description
Technical field
The utility model provides a kind of electrical network main line and branch line power failure fault discrimination system, belongs to grid equipment operational monitoring technical field.
Background technology
In electric power system, normal, the user's power failure of power supply when transformer station, power supply department is worked as and needed to screen is that the tripping operation fault has taken place the vacuum switch on the electrical network main line on the transformer, or transformer and following line tripping on the electrical network branch line of lower end, so just, can distinguish responsibility, send the maintainer of counterpart to go out the scene.
The utility model content
It still is the transformer on the electrical network branch line and the electrical network main line and the branch line power failure fault discrimination system of following line tripping fault that the purpose of this utility model provides a kind of vacuum switch tripping operation fault that can address the above problem, can screen on the electrical network main line.Its technical scheme is:
Comprise main frame, receiver that is arranged on electric company and the monitoring device that is installed in the different step down sides in vacuum switch lower end, it is characterized in that: monitoring device is two covers, every cover includes voltage monitoring module, single-chip microcomputer U and has the radio transmission module of SIM card, the low-voltage output of the input termination transformer of voltage monitoring module wherein, output terminal meets single-chip microcomputer U, and the output terminal of single-chip microcomputer U connects the radio transmission module through communication port.
Described electrical network main line and branch line power failure fault discrimination system, the voltage monitoring module comprises inductance L 1-3, resistance R 1-3, voltage dependent resistor (VDR) MY1-4, optocoupler G1-3 and capacitor C 1-3, wherein the end correspondence of inductance L 1-3 connects low-voltage output A, B, the C three-phase supply of transformer, other end correspondence connects the input end of optocoupler G1-3 through resistance R 1-3, and the output terminal correspondence of optocoupler G1-3 connects the input end of single-chip microcomputer U.
Described electrical network main line and branch line power failure fault discrimination system, the radio transmission module is GSM or GPRS or wireless launcher.
Its principle of work is: the main frame that is arranged on electric company receives the operation of power networks signal of the monitoring device transmission that is installed in different step down sides respectively through receiver, and the signal that receives compared judgement: when transformer station's power supply just often, if have only a cover monitoring device to send the signal of power failure, explanation is that transformer or its following circuit on the electrical network branch line breaks down; If two cover monitoring devices all send the signal of power failure, explanation is that the tripping operation fault appears in the vacuum switch on the electrical network main line of transformer upper end.
The utility model compared with prior art, its advantage is: simple in structure, can accurately screen vacuum switch tripping operation fault on the electrical network main line and still be transformer and following line tripping fault on the electrical network branch line, so just can distinguish responsibility, send the maintainer of counterpart to go out the scene.
Description of drawings
Fig. 1 is a principle of work block diagram of the present utility model;
Fig. 2 is that the utility model voltage monitoring module reaches the circuit diagram that is connected with single-chip microcomputer, radio transmission module.
Among the figure: 1, main frame 2, receiver 3, vacuum switch 4, transformer 5, monitoring device 6, transformer station 7, radio transmission module
Embodiment
In the embodiment shown in Fig. 1-2: radio transmission module 7 adopts gsm module, main frame 1, receiver 2 is arranged on electric company, voltage monitoring module in the two cover monitoring devices 5 is installed in the low-pressure side of different transformers 4 respectively, the end correspondence of inductance L 1-3 wherein meets the low-voltage output A of transformer 4, B, the C three-phase supply, other end correspondence connects the input end of optocoupler G1-3 through resistance R 1-3, the output terminal correspondence of optocoupler G1-3 connects the input end of single-chip microcomputer U, the output terminal of single-chip microcomputer U is through communication port RXD, TXD connects gsm module, the operation of power networks signal of monitoring is sent to main frame 1, compare judgement by main frame 1, accurately screening is vacuum switch 3 tripping operation faults on the electrical network main line or transformer 4 and the following line tripping fault on the electrical network branch line.Voltage dependent resistor (VDR) MY1-4 correspondence is serially connected between the low-voltage output and ground of transformer 4 in the voltage monitoring module.
Claims (3)
1. electrical network main line and branch line power failure fault discrimination system, the monitoring device (5) that comprises main frame (1), receiver (2) that is arranged on electric company and different transformers (4) low-pressure side that is installed in vacuum switch (3) lower end, it is characterized in that: monitoring device (5) is two covers, every cover includes voltage monitoring module, single-chip microcomputer U and radio transmission module (7), the low-voltage output of the input termination transformer (4) of voltage monitoring module wherein, output terminal meets single-chip microcomputer U, and the output terminal of single-chip microcomputer U connects radio transmission module (7) through communication port.
2. electrical network main line as claimed in claim 1 and branch line power failure fault discrimination system, it is characterized in that: the voltage monitoring module comprises inductance L 1-3, resistance R 1-3, voltage dependent resistor (VDR) MY1-4, optocoupler G1-3 and capacitor C 1-3, wherein the end correspondence of inductance L 1-3 connects low-voltage output A, B, the C three-phase supply of transformer (4), other end correspondence connects the input end of optocoupler G1-3 through resistance R 1-3, and the output terminal correspondence of optocoupler G1-3 connects the input end of single-chip microcomputer U.
3. electrical network main line as claimed in claim 1 and branch line power failure fault discrimination system is characterized in that: radio transmission module (7) is GSM or GPRS or wireless launcher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202257113U CN201497769U (en) | 2009-09-04 | 2009-09-04 | Power grid master line and branch line power failure screening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202257113U CN201497769U (en) | 2009-09-04 | 2009-09-04 | Power grid master line and branch line power failure screening system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201497769U true CN201497769U (en) | 2010-06-02 |
Family
ID=42440973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202257113U Expired - Fee Related CN201497769U (en) | 2009-09-04 | 2009-09-04 | Power grid master line and branch line power failure screening system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201497769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137439A (en) * | 2021-11-24 | 2022-03-04 | 广东电网有限责任公司 | Power failure fault analysis device and method of oil chromatography online monitoring device |
-
2009
- 2009-09-04 CN CN2009202257113U patent/CN201497769U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137439A (en) * | 2021-11-24 | 2022-03-04 | 广东电网有限责任公司 | Power failure fault analysis device and method of oil chromatography online monitoring device |
| CN114137439B (en) * | 2021-11-24 | 2023-08-18 | 广东电网有限责任公司 | Power failure analysis device and method for oil chromatography on-line monitoring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109687590B (en) | Grading outage and restoration reporting method and system | |
| CN108020809A (en) | Communication module and the detection alarm method that has a power failure with have a power failure detection and alarm function | |
| CN104849591B (en) | A kind of power distribution automation integration test detection means | |
| CN104330704B (en) | Transmission and distribution power grid fault positioning system | |
| CN201497769U (en) | Power grid master line and branch line power failure screening system | |
| CN102012467A (en) | Discrimination system for breakdown failures on mainline or branch line of power grid | |
| CN110244176A (en) | A kind of high-tension connector fault detection system and high-voltage power system | |
| CN207061551U (en) | A kind of elevator intelligent monitoring system | |
| CN202119862U (en) | Electric power circuit fault information display and remote transmission device | |
| CN108646103A (en) | Automatic kernel phase system based on car switch and device | |
| CN204719152U (en) | A kind of power distribution automation integration test pick-up unit | |
| CN204597635U (en) | Based on the fault quick examination device of EMS system transformer station communication | |
| CN204597488U (en) | Based on the intelligent low-pressure distribution JP compensating cabinet of GPRS | |
| CN211426778U (en) | Communication troubleshooting device for electric energy meter | |
| CN209786872U (en) | transformer station power consumption parameter acquisition device based on multiple local area wireless communication technologies | |
| CN203205980U (en) | High-voltage fault monitoring system based on Internet-of-things technology | |
| CN204154852U (en) | Transmission and distribution network fault location system | |
| CN106026110A (en) | Grid-load interaction terminal capable of removing great user load quickly | |
| CN208707803U (en) | A kind of intelligent building wireless monitoring device | |
| CN206283516U (en) | The detection platform of intelligent MANET data terminal communication base station | |
| CN206790062U (en) | A kind of intelligent cable with video acquisition function | |
| CN206283517U (en) | The detection platform of intelligent MANET data terminal communication station | |
| CN206117156U (en) | Quick -witted power supply control system recovers oil | |
| CN203689115U (en) | Feed line information sensor applied to integrated power source | |
| CN213341751U (en) | Distribution automation station terminal |
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: 20100602 Termination date: 20110904 |