CN105762937A - Rural power grid intelligence distribution transform terminal of secondary electric leakage protection - Google Patents
Rural power grid intelligence distribution transform terminal of secondary electric leakage protection Download PDFInfo
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- CN105762937A CN105762937A CN201610262940.7A CN201610262940A CN105762937A CN 105762937 A CN105762937 A CN 105762937A CN 201610262940 A CN201610262940 A CN 201610262940A CN 105762937 A CN105762937 A CN 105762937A
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- distribution transformer
- intelligence distribution
- transformer terminals
- earth leakage
- protective device
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- 230000001681 protective effect Effects 0.000 claims description 66
- 238000004891 communication Methods 0.000 claims description 29
- 241001124569 Lycaenidae Species 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 abstract description 11
- 230000001012 protector Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000002547 anomalous effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
Classifications
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- H02J13/0006—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
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- H02J13/0017—
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- H02J13/0062—
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- H02J13/0075—
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04S40/121—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 the power network as support for the transmission
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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
- Y04S40/126—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 wireless data transmission
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a rural power grid intelligence distribution transform terminal of secondary electric leakage protection. On an existing rural power grid bench area intelligence distribution terminal, a power line carrier wave module or a micropower wireless module is adopted and a matched collector is added in a bench area branch so as to carry out monitoring control and data acquisition on a branch residual current protector connected to the collector. And on the rural power grid bench area intelligence distribution terminal, remote monitoring and modification can be performed on the branch residual current protector.
Description
Technical field
The present invention relates to electrical network low-voltage distribution transformer system, be specifically related to a kind of two grades of earth leakage protective rural power grids intelligence distribution transformer terminals.
Background technology
Raising along with the change of rural economy situation and agriculture, rural areas and farmers need for electricity level, the delayed contradiction of rural economy high speed development and Rural Power Grid Construction level of relative is day by day obvious, and the contradiction between electricity for rural use Continued and rural power grids power supply capacity deficiency is becoming increasingly acute；Rural power grids possess the self-characteristic being different from urban distribution network, and the equipment underloading whole year time is long, and Rate of average load is low, and peak amplitude is high, and peak value rises year by year；Three-phase imbalance change is fast, it is not easy to adjusting, manual measurement is wasted time and energy, and can not truly report situations again；Power load seasonal characteristic is obvious, influenced by ambient temperature greatly, particularly the Spring Festival and summer peak of power consumption power supply capacity not enough and voltage is low, customer complaint is many, as carried out investment transformation according to peak load value, scale of investment is excessive, the long-time light running of the equipment that will result in, loss is big, and current state's financial capacity cannot realize.
At present; rural power grids use rural power grids intelligence distribution transformer terminals; it is to equipment that operation information is acquired and user power utilization information is collected such as distribution transformer, line switch, RCD, intelligent electric energy meters, it is possible to complete the functions such as distribution transformer metering summary table monitoring, RCD monitoring, status monitoring, load management, dynamic passive compensation/three-phase imbalance improvement/harmonic wave control, security protection, interactive management, asset management, video monitor, environmental monitoring and distributed power source access-in management.
But nowadays the platform district rural power grids intelligence distribution transformer terminals function of rural power grids is confined to the RCD running status to platform district main line and the monitoring of residual current numerical value, record, storage and upload function；And often there is electric leakage accident in power distribution station, once there be a branched line fault, according to original one-level leakage protective scheme; the RCD action of platform district main line can be caused; causing the power failure of whole compass of competency, coverage is big, and line fault is difficult to be accurately positioned；And platform district is not fixed fault time, platform district location distribution own compares operator operating position, Guang Hetai district relatively far away from, and platform district, rural area traffic disposition is general, and after Dang Taiqu breaks down, Yao Daotai district point is controlled, and adds platform district operator's work difficulty.
Along with intelligence Allocation transformer technology and the development of network technology and rural subscribers improving constantly reliability of electric power and prescription; require that rural electricity consumption safety and electricity consumption reliability also should be greatly improved by rural power grids; to reduce rural area electric shock thing; reduce the line loss of low-voltage platform area; reduce because of agriculture net platform region or line outage time; reducing the power failure that produces because of instantaneous or temporary derangement of unit-area management person and travel to and fro between platform interval time and number of times, the equipment in protection platform district itself is properly functioning.
Summary of the invention
The invention aims to the two grades of earth leakage protective rural power grids intelligence distribution transformer terminals providing a kind of data acquisition meeting the RCD to separated time road and monitoring to control.
The present invention is achieved through the following technical solutions: a kind of two grades of earth leakage protective rural power grids intelligence distribution transformer terminals, including system main website, APN private network, intelligence distribution transformer terminals, main earth leakage protective device, communication module, some harvesters, some branches residual current operated protective device, current supply circuit；Interconnected by APN private network between described intelligence distribution transformer terminals and system main website; it is provided with communication module in described intelligence distribution transformer terminals; described intelligence distribution transformer terminals is connected with some harvesters respectively by communication module, for collecting the operating mode of the branch's residual current operated protective device being connected with harvester that harvester monitors；Described intelligence distribution transformer terminals is connected with main earth leakage protective device also by RS485 serial electrical interface, and described main earth leakage protective device is connected with some branches residual current operated protective devices respectively also by current supply circuit；Described communication module is power line carrier module, is connected communication by power line carrier respectively with some harvesters；Described communication module is micro power radio module, and some harvester wireless by micropower is connected communication respectively；Each harvester connects some branches residual current operated protective device；It is connected by RS485 serial electrical interface between described harvester and branch residual current operated protective device；Described power line carrier module is provided with automatic routing module；Described micro power radio module is provided with automatic routing module.
The present invention is on the Intelligent power distribution terminal of existing agriculture net platform region; adopt power line carrier module or micro power radio module, and distinguish harvester supporting for Zhi Zengjia for the branch's residual current operated protective device being connected with harvester is monitored Control & data acquisition at platform；Achieve on the Intelligent power distribution terminal of agriculture net platform region, just branch's residual current operated protective device can be carried out remotely monitoring and amendment.
The invention have benefit that: 1) adopt communication module that branch's residual current operated protective device is monitored Control & data acquisition, set up two grades of earth leakage protectives, decrease rural area power failure area, improve power supply quality；2) intelligence distribution transformer terminals collects, by communication module, the information that harvester gathers, and the energy precise positioning source of trouble, convenient for maintaining personnel carry out lookup and the maintenance of the source of trouble；3) harvester is connected by RS485 serial electrical interface communication with branch residual current operated protective device, and the data that timing automatic can gather branch's residual current operated protective device also store, in order to terminal collection.
Accompanying drawing explanation
Fig. 1 is two grades of earth leakage protective rural power grids Intelligent power distribution terminals of power line carrier.
Fig. 2 is two grades of earth leakage protective rural power grids Intelligent power distribution terminals that micropower is wireless.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the invention will be further described.
Seeing Fig. 1 to Fig. 2, a kind of two grades of earth leakage protective rural power grids intelligence distribution transformer terminals, including system main website, APN private network, intelligence distribution transformer terminals, main earth leakage protective device, communication module, some harvesters, some branches residual current operated protective device, current supply circuit；Interconnected by APN private network between described intelligence distribution transformer terminals and system main website; it is provided with communication module in described intelligence distribution transformer terminals; described intelligence distribution transformer terminals is connected with some harvesters respectively by communication module, for collecting the operating mode of the branch's residual current operated protective device being connected with harvester that harvester monitors；Described intelligence distribution transformer terminals is connected with main earth leakage protective device also by RS485 serial electrical interface, and described main earth leakage protective device is connected with some branches residual current operated protective devices respectively also by current supply circuit；Described communication module is power line carrier module, is connected communication by power line carrier respectively with some harvesters；Described communication module is micro power radio module, and some harvester wireless by micropower is connected communication respectively；Each harvester connects some branches residual current operated protective device；It is connected by RS485 serial electrical interface between described harvester and branch residual current operated protective device；Described power line carrier module is provided with automatic routing module；Described micro power radio module is provided with automatic routing module.
nullIn present embodiment，Harvester is connected with branch residual current operated protective device by RS485 serial electrical interface，For completing the Monitoring and Controlling to branch's residual current operated protective device and data acquisition function，And intelligence distribution transformer terminals is provided with power line carrier module or micro power radio module，Harvester just can be monitored by power line carrier module or micro power radio module and control by intelligence distribution transformer terminals，The data that harvester gathers branch's residual current operated protective device are monitored and control，System main website is connected with intelligence distribution transformer terminals communication further through APN private network，And main earth leakage protective device is connected with some branches residual current operated protective devices further through current supply circuit，Material is thus formed two grades of earth leakage protectives，Prevent the branched line fault from resulting in the main earth leakage protective device action in platform district，Thus causing the power failure of whole region；And intelligence distribution transformer terminals just can learn the operating mode of each branch's residual current operated protective device being connected with harvester by power line carrier module or micro power radio module; it is thus possible to reduce power failure area; improve power supply quality; simultaneously also can the precise positioning source of trouble more, convenient for maintaining personnel carry out lookup and the maintenance of the source of trouble；And can remotely deliver electricity, reduce the work difficulty of maintainer.
In present embodiment, harvester is by RS485 serial electrical interface and branch's residual current operated protective device communication, and timing automatic collection branch protects the data such as voltage, electric current and residual current and stores, for terminal collection.
In present embodiment, intelligence distribution transformer terminals is to branch's residual current operated protective device downlink communication agreement, and intelligence distribution transformer terminals adapts to branch's residual current operated protective device stipulations different on the spot, it is achieved control and the monitoring to branch's residual current operated protective device, meets stipulations and formulates；And the remotely modifying of branch's residual current operated protective device can be realized.
In present embodiment, physical layer interface is defaulted as RS485 serial electrical interface, and transmission range is limited, increases the electric interfaces such as micropower wirelessly or electrically line of force carrier wave of other modes, then considerably increases the transmission range of communication, facilitate the construction of data switching networks.
In present embodiment, it is possible to according to on-site actual situations, the precisely parameter of configuration branch's residual current operated protective device and main earth leakage protective device, improves Electrical Safety greatly, reduces electric shock accidents.
In present embodiment, what can realize the main earth leakage protective device of main line and branch's residual current operated protective device remotely delivers electricity, to reduce the work difficulty of platform district operation employee.
In present embodiment, it is possible to achieve move back ray examination to what leakage was protected, to prevent platform district from protecting out of service because of the situation of the frequent fault actions of management system and platform district, rural area by leakage, strengthen the risk that rural power grids get an electric shock.
In present embodiment, harvester can monitor out the operating mode of branch's residual current operated protective device in branched line timely, when there being branch's residual current operated protective device tripping operation, can produce alarm and upload；After system main website receives alarm, the information of trouble point can be confirmed at once, notify related personnel；When multiplexing electric abnormality occur, such as overload etc., system main website according to the data of each harvester, can be accurately positioned anomalous line.
In present embodiment, the characteristic according to each district and harvester, after the data analysis to remote collection, the parameter protected can be leaked by remotely located each, reach leakage and protect the optimization of parameter.
In present embodiment, residual current threshold values, overload threshhold and over-and under-voltage threshold values, the feature according to each circuit that administration by different levels leakage is protected, use different parameter values；Power line carrier module and micro power radio module have the function of automatically route, when power line carrier and the wireless signal of micropower can not go directly, can pass through automatic routing function, complete relay communication；By data collection and analysis, system main website energy hierarchical statistics calculates the use electrical characteristics of outlet at different levels, provides data supporting for the transformation of platform district.
In present embodiment, each harvester connects some branches residual current operated protective device, and each harvester can also be connected solely to branch's residual current operated protective device.
Protection scope of the present invention includes but not limited to embodiment of above, and protection scope of the present invention is as the criterion with claims, and any replacement that those skilled in the art will find apparent that this technology is made, deformation, improvement each fall within protection scope of the present invention.
Claims (7)
1. one kind two grades earth leakage protective rural power grids intelligence distribution transformer terminals, it is characterised in that: include system main website, APN private network, intelligence distribution transformer terminals, main earth leakage protective device, communication module, some harvesters, some branches residual current operated protective device, current supply circuit；Interconnected by APN private network between described intelligence distribution transformer terminals and system main website; it is provided with communication module in described intelligence distribution transformer terminals; described intelligence distribution transformer terminals is connected with some harvesters respectively by communication module, for collecting the operating mode of the branch's residual current operated protective device being connected with harvester that harvester monitors；Described intelligence distribution transformer terminals is connected with main earth leakage protective device also by RS485 serial electrical interface, and described main earth leakage protective device is connected with some branches residual current operated protective devices respectively also by current supply circuit.
2. a kind of two grades of earth leakage protective rural power grids intelligence distribution transformer terminals according to claim 1, it is characterised in that: described communication module is power line carrier module, is connected communication by power line carrier respectively with some harvesters.
3. a kind of two grades of earth leakage protective rural power grids intelligence distribution transformer terminals according to claim 1, it is characterised in that: described communication module is micro power radio module, and some harvester wireless by micropower is connected communication respectively.
4. a kind of two grades of earth leakage protective rural power grids intelligence distribution transformer terminals according to claim 1, it is characterised in that: each harvester connects some branches residual current operated protective device.
5. a kind of two grades of earth leakage protective rural power grids intelligence distribution transformer terminals according to claim 4, it is characterised in that: it is connected by RS485 serial electrical interface between described harvester and branch residual current operated protective device.
6. a kind of two grades of earth leakage protective rural power grids intelligence distribution transformer terminals according to claim 2, it is characterised in that: described power line carrier module is provided with automatic routing module.
7. a kind of two grades of earth leakage protective rural power grids intelligence distribution transformer terminals according to claim 3, it is characterised in that: described micro power radio module is provided with automatic routing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610262940.7A CN105762937A (en) | 2016-04-26 | 2016-04-26 | Rural power grid intelligence distribution transform terminal of secondary electric leakage protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610262940.7A CN105762937A (en) | 2016-04-26 | 2016-04-26 | Rural power grid intelligence distribution transform terminal of secondary electric leakage protection |
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| CN105762937A true CN105762937A (en) | 2016-07-13 |
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| CN201610262940.7A Pending CN105762937A (en) | 2016-04-26 | 2016-04-26 | Rural power grid intelligence distribution transform terminal of secondary electric leakage protection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108333400A (en) * | 2018-03-19 | 2018-07-27 | 秦峥 | A kind of intelligent metering case and its application |
| CN108879948A (en) * | 2018-06-14 | 2018-11-23 | 深圳市国电科技通信有限公司 | A kind of intelligent low-pressure cable branch box and its operation method and intelligent distribution area |
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Application publication date: 20160713 |
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