CN202094699U - Intelligent management case for online monitoring system of distributed substation - Google Patents
Intelligent management case for online monitoring system of distributed substation Download PDFInfo
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- CN202094699U CN202094699U CN2011200392438U CN201120039243U CN202094699U CN 202094699 U CN202094699 U CN 202094699U CN 2011200392438 U CN2011200392438 U CN 2011200392438U CN 201120039243 U CN201120039243 U CN 201120039243U CN 202094699 U CN202094699 U CN 202094699U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
The utility model relates to an intelligent management case for the online monitoring system of a distributed substation, which comprises a power supply distribution module. The power supply distribution module is connected with a power supply module. The power supply module is connected with a communication distribution module. The power supply module is connected with a bus bar pt voltage signal processing module. After voltage and current conversion is conducted, bus bar pt voltage signals in a main control building are supplied as bus bar pt voltage signals for dielectric loss monitoring and lightning arrester resistive current monitoring. An Ethernet switch in a case conducts uniform management to communication signals to establish a local area network. The Ethernet switch in the case accesses the communication signals to the communication room of the main control building through an optical cable, and therefore the main control building can access to each online monitoring case through one optical cable only. One loop of power supply is only required to be led out for the power supply distribution management in the case and the power supply to the online monitoring case can be realized. The intelligent management case for the online monitoring system of the distributed substation has the advantages that the number of buried cables for the distributed online monitoring system is decreased and the material cost and the construction cost are reduced.
Description
Technical field
The utility model relates to the electrical Equipment On-Line Monitoring System field, relates in particular to a kind of intelligent management cabinet that is used for distributed Transformer Substation Online Monitoring System.
Background technology
Along with the raising of power equipment electric pressure, the increase of single-machine capacity, power equipment reliability of operation problem is more and more outstanding.Obtaining the power equipment online measuring technique of develop rapidly in recent years, is that a kind of power equipment working voltage that utilizes comes the method that status of electric power is tested, and it can improve the authenticity and the sensitivity of test greatly.Can accumulate lot of data by online detection,, can carry out multifactorial evaluation the state of power equipment in conjunction with power equipment preventive trial data and service data in the past---diagnosis.
Developed on-Line Monitor Device at present both at home and abroad in succession, but lacked systematicness and compatible, can't realize unified management at the single characteristic quantity of single electric equipment or electric equipment.The distributed on line monitoring system can satisfy power equipment kind complexity, a fairly large number of instructions for use in the transformer station, progressively obtains promotion and application.
But conventional distributed system, the general star structure that adopts, in transformer station master control building dry contact is set, each power equipment monitoring cabinet is set to stellate node, and this just causes the feed cable of drawing in the master control building and signal cable quantity is more and function repeats; The service cable of each power equipment monitoring cabinet also needs independently to bury underground; When whole on-line monitoring system increases monitoring equipment, all need cable laying again.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of intelligent management cabinet that is used for distributed Transformer Substation Online Monitoring System, reduces the quantity of burying underground of distributed on line monitoring system cable, reduces material cost and construction cost.
In order to achieve the above object, the technical scheme taked of the utility model is:
A kind of intelligent management cabinet that is used for distributed Transformer Substation Online Monitoring System, comprise power distribution module 1, communication distribution module 2, bus pt voltage signal processing module 3 and power module 4, the input of power distribution module 1 is connected with external power source, the output of power distribution module 1 is connected with the input of power module 4, first output of power module 4 is connected with the input of communication distribution module 2, provide+the 24V power supply, second output of power module 4 is connected with the input of bus pt voltage signal processing module 3, provides ± the 12V power supply.
Described power distribution module 1 comprises that the input of first air switch, 5, the first air switches 5 is connected with external power source, the output of first air switch 5 and be installed in the input parallel connection of second air switch 6 more than two on the guide rail 7.
Described communication distribution module 2 comprises an Industrial Ethernet switch 8 and an optical fiber terminal box 9, the optical fiber connectivity port of Industrial Ethernet switch 8 is connected by the tail optical fiber wire jumper with the output of optical fiber terminal box 9, the ethernet port of Industrial Ethernet switch 8 connects netting twine, and the input of optical fiber terminal box 9 connects optical cable.
Described bus pt voltage signal processing module 3 comprises an accurate high-power resistance 10, accurate high-power resistance 10 is connected on the pt signal circuit, be provided with a core-theaded type precision current instrument transformer 11 on the pt signal circuit, the signal output part of current transformer 11 is connected with pt signal voltage current converter circuit.
Operation principle of the present utility model is:
Bus pt voltage signal cable in the master control building is connected to the intelligent management cabinet, after the intelligent management cabinet carries out the voltage current transformation processing, according to the needs of on-line monitoring cabinet, provide corresponding electric current output, dielectric loss is monitored and the arrester resistance current monitoring provides bus pt voltage signal for the on-line monitoring cabinet carries out; An Ethernet switch is set in the intelligent management cabinet, the communication signal unification of each on-line monitoring cabinet is managed, utilize Ethernet switch to build local area network (LAN); Ethernet switch in the intelligent management cabinet is by optical cable, and communication signal is linked into the communication room in master control building, makes the master control building only need an optical cable just can realize visit to each on-line monitoring cabinet; The power distribution managing terminal is set in the intelligent management cabinet, and the power supply terminal case only needs to draw one road power supply, by the allocation manager of intelligent management cabinet, just can realize the power supply to the on-line monitoring cabinet.
The utility model has the advantages that: reduced on-line monitoring cabinet installation material, reduced use cost; The flexibility and the extensibility of on-line monitoring system have been improved; Reduce the quantity of burying cable underground, reduced maintenance and operational management cost, improved operability.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model power distribution module.
Fig. 3 is the structural representation of the utility model communication distribution module.
Fig. 4 is the structural representation of the utility model bus pt voltage signal processing module.
Fig. 5 is the circuit diagram of the utility model bus pt voltage signal processing module.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
With reference to Fig. 1, a kind of intelligent management cabinet that is used for distributed Transformer Substation Online Monitoring System, comprise power distribution module 1, communication distribution module 2, bus pt voltage signal processing module 3 and power module 4, the input of power distribution module 1 is connected with external power source, the output of power distribution module 1 is connected with the input of power module 4, first output of power module 4 is connected with the input of communication distribution module 2, provide+the 24V power supply, second output of power module 4 is connected with the input of bus pt voltage signal processing module 3, provides ± the 12V power supply.
With reference to Fig. 2, described power distribution module 1 comprises first air switch 5, the input of first air switch 5 is connected with external power source, the output of first air switch 5 and be installed in the input parallel connection of second air switch 6 more than two on the guide rail 7, the output of first air switch 5 is connected with the input of power module 4.The power supply that the power distribution module is used for introducing from the power supply terminal case distributes, and makes one road power supply be a plurality of on-line monitoring cabinet power supplies simultaneously, and when the on-line monitoring cabinet inserted, the corresponding air switch 5 that closes can provide power supply.According to the size of intelligent management cabinet, can provide 8 road to 32 tunnel on-line monitoring chassis power supplys that do not wait simultaneously.
With reference to Fig. 3, described communication distribution module 2 comprises an Industrial Ethernet switch 8 and an optical fiber terminal box 9, the optical fiber connectivity port of Industrial Ethernet switch 8 is connected by the tail optical fiber wire jumper with the optical patchcord interface of optical fiber terminal box 9, the ethernet port of Industrial Ethernet switch 8 connects netting twine, and the optical cable input of optical fiber terminal box 9 connects optical cable.The Industrial Ethernet switch adopts non-webmaster type switchboard, and serviceability temperature reaches-40 ℃～+ 85 ℃, integrated fiber optical transceiver.The Industrial Ethernet switch has 8 Ethernet interfaces, also can be replaced with as required to have 16 Ethernet interfaces.The fiber optical transceiver of Industrial Ethernet switch is as the interface of the external communication of intelligent management cabinet, and the local area network (LAN) that the on-line monitoring cabinet is constituted can be visited by the master control building.When using fiber optical transceiver, in optical fiber terminal box, carry out the welding of optical cable and optical fiber pigtail.
With reference to Fig. 4, described bus pt voltage signal processing module 3 comprises an accurate high-power resistance 10, accurate high-power resistance 10 is connected on the pt signal circuit, on the pt signal circuit, be provided with a core-theaded type precision current instrument transformer 11, the signal output part of current transformer 11 is connected with pt signal voltage current converter circuit, and the pt busbar voltage is used for the dielectric loss monitoring and the arrester resistance current monitoring of capacitive apparatus.The pt signal is external to have certain danger, so the pt signal of drawing is few more good more.The pt signal processing module is set in the intelligent management cabinet, is used for pt being provided signal can for a plurality of on-line monitoring cabinets after the conversion of one road pt signal process.
Referring to Fig. 5, operational amplifier U1A, operational amplifier U1B constitute accurate voltage with resistance R 1, resistance R 2, resistance R 3, resistance R 4 and resistance R 5---current converter circuit.Resistance R 2 is as the end of oppisite phase 2 pin resistance to earth of operational amplifier U1A, an end ground connection, end of oppisite phase 2 pin of an end concatenation operation amplifier U1A; Resistance R 1 is connected end of oppisite phase 2 pin and output 1 pin of operational amplifier U1A.Resistance R 3 is connected with external input signal, constitutes amplifying circuit in the same way with resistance R 1, resistance R 2 and operational amplifier U1A.Output 1 pin of operational amplifier U1A converts electric current output to by resistance R 5, and the current value of output is:
Operational amplifier U1B gathers the feedback voltage of resistance R 5 by holding 5 pin in the same way, with 6 pin and the 7 pin short circuits of operational amplifier U1B, constitutes voltage follower.The output signal of voltage follower is inputing to 3 pin of operational amplifier U1A by resistance R 4, forms closed loop feedback.
Connector J2 is a sensor interface, and effect is to provide ± the 12V power supply to transducer.Sensor output signal is input in the circuit through 1 pin of connector J2.
Output end current is by connector J3 output, and 1 pin of connector J3 is connected with resistance R 5, and 2 pin are connected with signal ground.At the two ends of connector J3 TVS diode in parallel, realize protection; Wherein, U
INIt is the voltage input signal that needs conversion; R
5It is the transfer resistance that is used to realize voltage one current conversion.
Operation principle of the present utility model is:
Bus pt voltage signal cable in the master control building is connected to the intelligent management cabinet, after the intelligent management cabinet carries out the voltage current transformation processing, according to the needs of on-line monitoring cabinet, provide corresponding electric current output, dielectric loss is monitored and the arrester resistance current monitoring provides bus pt voltage signal for the on-line monitoring cabinet carries out; An Ethernet switch is set in the intelligent management cabinet, the communication signal unification of each on-line monitoring cabinet is managed, utilize Ethernet switch to build local area network (LAN); Ethernet switch in the intelligent management cabinet is by optical cable, and communication signal is linked into the communication room in master control building, makes the master control building only need an optical cable just can realize visit to each on-line monitoring cabinet; The power distribution managing terminal is set in the intelligent management cabinet, and the power supply terminal case only needs to draw one road power supply, by the allocation manager of intelligent management cabinet, just can realize the power supply to the on-line monitoring cabinet.
Claims (5)
1. intelligent management cabinet that is used for distributed Transformer Substation Online Monitoring System, it is characterized in that: comprise power distribution module (1), communication distribution module (2), bus pt voltage signal processing module (3) and power module (4), the input of power distribution module (1) is connected with external power source, the output of power distribution module (1) is connected with the input of power module (4), first output of power module (4) is connected with the input of communication distribution module (2), provide+the 24V power supply, second output of power module (4) is connected with the input of bus pt voltage signal processing module (3), provides ± the 12V power supply.
2. a kind of intelligent management cabinet that is used for distributed Transformer Substation Online Monitoring System according to claim 1, it is characterized in that: described power distribution module (1) comprises first air switch (5), the input of first air switch (5) is connected with external power source, the output of first air switch (5) and the input parallel connection that is installed in second air switch more than two (6) on the guide rail (7).
3. a kind of intelligent management cabinet that is used for distributed Transformer Substation Online Monitoring System according to claim 1, it is characterized in that: described communication distribution module (2) comprises an Industrial Ethernet switch (8) and an optical fiber terminal box (9), the optical fiber connectivity port of Industrial Ethernet switch (8) is connected by the tail optical fiber wire jumper with the output of optical fiber terminal box (9), the ethernet port of Industrial Ethernet switch (8) connects netting twine, and the input of optical fiber terminal box (9) connects optical cable.
4. a kind of intelligent management cabinet that is used for distributed Transformer Substation Online Monitoring System according to claim 1, it is characterized in that: described bus pt voltage signal processing module (3) comprises an accurate high-power resistance (10), accurate high-power resistance (10) is connected on the pt signal circuit, be provided with a core-theaded type precision current instrument transformer (11) on the pt signal circuit, the signal output part of current transformer (11) is connected with pt signal voltage current converter circuit.
5. according to claim 1 or 4 described a kind of intelligent management cabinets that are used for distributed Transformer Substation Online Monitoring System, it is characterized in that: described bus pt voltage signal processing module (3) comprises operational amplifier U1A, operational amplifier U1B, and operational amplifier U1A, operational amplifier U1B constitute accurate voltage with resistance R 1, resistance R 2, resistance R 3, resistance R 4 and resistance R 5---current converter circuit; Resistance R 2 is as the end of oppisite phase 2 pin resistance to earth of operational amplifier U1A, an end ground connection, end of oppisite phase 2 pin of an end concatenation operation amplifier U1A; Resistance R 1 is connected end of oppisite phase 2 pin and output 1 pin of operational amplifier U1A; Resistance R 3 is connected with external input signal, constitutes amplifying circuit in the same way with resistance R 1, resistance R 2 and operational amplifier U1A; Output 1 pin of operational amplifier U1A converts electric current output to by resistance R 5, and the current value of output is:
Operational amplifier U1B gathers the feedback voltage of resistance R 5 by holding 5 pin in the same way, with 6 pin and the 7 pin short circuits of operational amplifier U1B, constitutes voltage follower; The output signal of voltage follower is inputing to 3 pin of operational amplifier U1A by resistance R 4, forms closed loop feedback;
Connector J2 is a sensor interface, and effect is to provide ± the 12V power supply to transducer; Sensor output signal is input in the circuit through 1 pin of connector J2;
Output end current is by connector J3 output, and 1 pin of connector J3 is connected with resistance R 5, and 2 pin are connected with signal ground, at the two ends of connector J3 TVS diode in parallel, realizes protection; Wherein, U
INIt is the voltage input signal that needs conversion; R
5It is the transfer resistance that is used to realize the voltage-to-current conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200392438U CN202094699U (en) | 2011-02-16 | 2011-02-16 | Intelligent management case for online monitoring system of distributed substation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200392438U CN202094699U (en) | 2011-02-16 | 2011-02-16 | Intelligent management case for online monitoring system of distributed substation |
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| CN202094699U true CN202094699U (en) | 2011-12-28 |
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| CN2011200392438U Expired - Fee Related CN202094699U (en) | 2011-02-16 | 2011-02-16 | Intelligent management case for online monitoring system of distributed substation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917292A (en) * | 2015-05-15 | 2015-09-16 | 国家电网公司 | Remotely-maintainable substation online monitoring system |
| CN108808853A (en) * | 2018-05-18 | 2018-11-13 | 广东电网有限责任公司 | A kind of power grid alarm signal flow system Internet-based |
-
2011
- 2011-02-16 CN CN2011200392438U patent/CN202094699U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917292A (en) * | 2015-05-15 | 2015-09-16 | 国家电网公司 | Remotely-maintainable substation online monitoring system |
| CN108808853A (en) * | 2018-05-18 | 2018-11-13 | 广东电网有限责任公司 | A kind of power grid alarm signal flow system Internet-based |
| CN108808853B (en) * | 2018-05-18 | 2022-02-22 | 广东电网有限责任公司 | Power grid alarm signal circulation system based on internet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID QINGHAI ELECTRIC POWER COMPANY XI'AN ZH Free format text: FORMER OWNER: ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID QINGHAI ELECTRIC POWER COMPANY Effective date: 20140331 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: XI'AN ZHIYUAN ELECTRIC CO., LTD. Effective date: 20140331 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710054 XI'AN, SHAANXI PROVINCE TO: 100031 DONGCHENG, BEIJING |
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| CP01 | Change in the name or title of a patent holder |
Address after: 710054, Xi'an, Shaanxi Province, 99 Xiang Yan Road, Qujiang campus, Building 102 Patentee after: Xi'an Intelligent Source Electric Co.,Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER Co. Address before: 710054, Xi'an, Shaanxi Province, 99 Xiang Yan Road, Qujiang campus, Building 102 Patentee before: Xi'an Intelligent Source Electric Co.,Ltd. Patentee before: Electric Power Research Institude of State Grid Qinghai Electric Power Co. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140331 Address after: 100031 West Chang'an Avenue, Beijing, No. 86 Patentee after: State Grid Corporation of China Patentee after: STATE GRID QINGHAI ELECTRIC POWER Co. Patentee after: Xi'an Intelligent Source Electric Co.,Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER Co. Address before: 710054, Xi'an, Shaanxi Province, 99 Xiang Yan Road, Qujiang campus, Building 102 Patentee before: Xi'an Intelligent Source Electric Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID QINGHAI ELECTRIC POWER Co. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20170216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |