CN104821661A - Power consumption information acquisition system with residual current monitoring function - Google Patents
Power consumption information acquisition system with residual current monitoring function Download PDFInfo
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- CN104821661A CN104821661A CN201510255580.3A CN201510255580A CN104821661A CN 104821661 A CN104821661 A CN 104821661A CN 201510255580 A CN201510255580 A CN 201510255580A CN 104821661 A CN104821661 A CN 104821661A
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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
- Y04S40/126—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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Abstract
The invention discloses a power consumption information acquisition system with a residual current monitoring function, which comprises a main station level, a general protection level located at a low-voltage side of a distribution substation area, and a middle protection level located between the general protection level and a user, wherein the main station level is provided with a front-end machine and a server in mutual connection; the general protection level is provided with a first-stage residual current action protector and a common transformer terminal; the middle protection level is provided with a second-stage residual current action protector; the second-stage residual current action protector transmits residual current information and operation state information to the common transformer acquisition terminal in a power line carrier mode; the first-stage residual current action protector transmits residual current information and operation state information to the common transformer acquisition terminal via a 485 bus; the common transformer acquisition terminal is in communication connection with the front-end machine for uploading acquired residual current information and operation state information to the server, and receiving and forwarding a control instruction of the server to control actions of the first-stage residual current action protector and the second-stage residual current action protector.
Description
Technical field
The present invention relates to a kind of electric power power information acquisition system.
Background technology
Power user power consumption information acquisition system is the system gathering the power information of power consumer, process and monitor in real time, realizes the functions such as the automatic collection of power information, metering exception monitoring, electric energy quality monitoring, electrical energy consumption analysis and management, relevant information are issued, distributed energy is monitored, the information interaction of intelligent power equipment.At present, power supply enterprise has set up complete power information and has gathered system, installing and using of the various intelligent terminals such as power information acquisition terminal, intelligent electric meter, utilize modernization wireless data communication technology and computer management information system realize voltage to power consumer, electric current, electricity long-range " all standing ", " entirely gathering ".But; this Electrical Safety significant data of power distribution station residual current the collection of unrealized centralized, automation; under the installation of RCD at different levels, ruuning situation are also in dispersion, original way to manage, the installation rate of RCD, operational percentage and ruuning situation also cannot realize comprehensive remote automation monitoring management.
Summary of the invention
The object of the invention is for the deficiencies in the prior art; a kind of power information acquisition system is provided; the basis of original power information acquisition system increases residual current monitoring function, realizes the remote monitoring to residual current and RCD running status.
Object of the present invention realizes by following technical solution:
A kind of power information acquisition system with residual current monitoring function, comprise main website aspect, be in total guarantor's aspect of power distribution station low-pressure side, be in middle guarantor's aspect between total guarantor's aspect and user, it is characterized in that: main website aspect has interconnective front end processor and server, total guarantor's aspect has and is arranged on first order RCD on the low-pressure side circuit of power distribution station and public transformer terminals, middle guarantor's aspect has the second level RCD be arranged between total guarantor's aspect and user on circuit, residual current information and running state information are transferred to public change acquisition terminal by power line carrier mode by second level RCD, residual current information and running state information are transferred to public change acquisition terminal by 485 buses by first order RCD, public change acquisition terminal and front end processor communicate to connect, for the residual current information of collection and running state information are uploaded onto the server, and can receive with the control command of forwarding server to control first, second level RCD action.
Embodiment one: described second level RCD is arranged on the main line of middle guarantor's aspect, 485/ carrier converter that this second level RCD has 485 communication interfaces and is connected with 485 communication interfaces.
Embodiment two: described second level RCD is arranged on the main line of middle guarantor's aspect, and this second level RCD has carrier communication interface.
Embodiment three: the residual current of described second level RCD is monitored and action protection function is built-in is integrated in the electric energy meter of middle guarantor's aspect.
Further; described middle guarantor's aspect is provided with the low-voltage carrier intelligent electric energy meter with described public transformer terminals carrier communication; described second level RCD has the low-voltage power line carrier communication module identical or compatible with low-voltage carrier intelligent electric energy meter; adopt or compatible communication protocol identical with low-voltage carrier intelligent electric energy meter, directly can carry out data communication with described public transformer terminals and low-voltage carrier intelligent electric energy meter.
Further; described second level RCD joins in the carrier communication network of power distribution station as the Carrier Node of low-voltage automatic reading meter system; full dynamic trunking networking is jointly participated in low-voltage carrier intelligent electric energy meter; the data of low-voltage carrier intelligent electric energy meter both force transfer electric energy meter; also the data of force transfer second RCD; further, the data of the second RCD both force transfer same device, the also data of force transfer electric energy meter.
Further, each branch line of described total guarantor's aspect is all provided with described first order RCD.
Further, each branch line of described total guarantor's aspect and main line are all provided with described first order RCD.
The present invention has following beneficial effect:
The main content of this rural electricity consumption safety of residual current monitoring and protection is brought in the management system of power user power consumption information acquisition system, residual current monitoring is increased in main website aspect, aftercurrent action protecting controlling functions module, the residual current data of RCD at different levels, optimum configurations, the measurements such as switch control rule, control information passes through RS-485 by certain transfer of data stipulations, low voltage power line carrier local communication mode is transferred to public transformer terminals, by public transformer terminals remote transmission to main website aspect, realize rural power grids power distribution station always to protect, middle guarantor and family are protected three grades and are leaked the remote monitoring protected, whether by setting two groups of Protection parameters in middle guarantor's aspect, can assist to analyze identification family guarantor has installation or normally runs, optionally, cancel intermediate RCD, adopt leakage guarantor ammeter to substitute middle rank and leak the watch-dog protected as family guarantor.
Achieve with the height of residual current, the RCD at different levels security of rural power grid management of power use function that is core business integrated; under the prerequisite of not malfunctioning activity and convenience; under not needing to drop into the prerequisite of huge construction and O&M cost in master device software, communication port, intelligent terminal, RCD etc., " complete gather, all standing " and " overall monitor " of round Realization rural power grids power distribution station residual current, three grades of RCD operating conditions.
Second level RCD joins in the carrier communication network of power distribution station as the Carrier Node of low-voltage automatic reading meter system; full dynamic trunking networking is jointly participated in low-voltage carrier intelligent electric energy meter; thus increase Carrier Node quantity, improve the reliability of carrier wave data transmission.
Embodiment
Shown in seeing figures.1.and.2, a kind of power information acquisition system with residual current monitoring function, comprises main website aspect, always guarantor's aspect, middle guarantor's aspect and family guarantor's aspect.
Main website aspect has interconnective front end processor and server.
Total guarantor's aspect is in power distribution station low-pressure side; comprise first order RCD and public transformer terminals; on the main line that first order RCD is arranged on power distribution station low-pressure side (always protecting aspect) and branch line; public transformer terminals communicate to connect by carrier interface and the low-voltage circuit of public distribution transforming, communicated to connect by 485 buses and first order non-electricity protector, communicated to connect by wireless and/or wireline communication network and front end processor, first order RCD abbreviation always guarantor.
Family guarantor's aspect is in the point of incoming cables of user, comprises the third level RCD being arranged on subscriber's drop place, and third level RCD is called for short family to be protected.
Middle guarantor's aspect is between total guarantor's aspect and family guarantor's aspect, comprises second level RCD and low-voltage carrier intelligent electric energy meter, protects, have following three kinds of execution modes during second level RCD is called for short:
Embodiment one: adopt second level RCD to be arranged on the main line of middle guarantor's aspect, 485/ carrier converter that this second level RCD has 485 communication interfaces and is connected with 485 communication interfaces; I.e. 485/ carrier converter+RCD, is labeled as " 485/ carrier converter+middle guarantor " in fig. 1 and 2
Embodiment two: second level RCD is arranged on the main line of middle guarantor's aspect, and this second level RCD has carrier communication interface, namely carrier leak is protected.
Embodiment three: the residual current of second level RCD is monitored and action protection function is built-in is integrated in the low-voltage carrier intelligent electric energy meter of middle guarantor's aspect, namely leaks and protects ammeter.
Residual current information and running state information are transferred to public change acquisition terminal by power line carrier mode by second level RCD; residual current information and running state information are transferred to public change acquisition terminal by 485 buses by first order RCD; public change acquisition terminal and front end processor communicate to connect; for the residual current information of collection and running state information are uploaded onto the server, and can receive with the control command of forwarding server to control first, second grade of RCD action.
Low-voltage carrier intelligent electric energy meter and public transformer terminals carrier communication, second level RCD has the low-voltage power line carrier communication module identical or compatible with low-voltage carrier intelligent electric energy meter, adopt or compatible communication protocol identical with low-voltage carrier intelligent electric energy meter, directly can carry out data communication with public transformer terminals and low-voltage carrier intelligent electric energy meter; Second level RCD joins in the carrier communication network of power distribution station as the Carrier Node of low-voltage automatic reading meter system; full dynamic trunking networking is jointly participated in low-voltage carrier intelligent electric energy meter; the data of low-voltage carrier intelligent electric energy meter both force transfer electric energy meter; also the data of force transfer second RCD; and; the data of the second RCD both force transfer same device; also the data of force transfer electric energy meter, this low-voltage automatic reading meter system is the subsystem in power information acquisition system.
With reference to shown in Fig. 3; public transformer terminals (N0) is low voltage power line carrier centralized node; multiple carrier terminal equipment is connected successively from the near to the remote along power line; wherein: RCD (N1), RCD (N4) are for having the Aftercurrent protecting equipment of low-voltage carrier communication function, and ammeter (N2), ammeter (N3) are low-voltage carrier intelligent ammeter.Assuming that be disturbed and carrier communication distance limit, Carrier Node between N0 to N4 can only communicate mutually with adjacent nearest node, then from public transformer terminals (N0) Carrier Node ammeter (N3) farthest, RCD (N4) cannot directly with low voltage power line carrier centralized node--public transformer terminals (N0) communicates.Because carrier communication system adopts dynamic trunking networking technology, according to the feature of topology network, each Carrier Node is by intercepting and negotiation mechanism, automatically generated data transmission route table, the data of the Carrier Node far away apart from public transformer terminals (N0) by mean carrier node by force transfer mode, from as far as nearly forwarding data successively.Such as: the ammeter data (comprising: the data such as the electricity charge, electricity, power, voltage, electric current) of Carrier Node ammeter (N3) passes through ammeter (N3), RCD (N1) node force transfer successively to public transformer terminals (N0), the residual current data (comprising: residual current numerical value, Protection parameters, action situation) of Aftercurrent protecting equipment RCD (N4) also pass through ammeter (N3), RCD (N1) node force transfer successively to public transformer terminals (N0).
With reference to shown in Fig. 1, main website aspect adopts the hardware of power user power consumption information acquisition system, software, database resource as the main station system of residual current remote monitoring and managing system.The server of main website aspect adds residual current remote monitoring functional module, realizes always guarantor, the informationization of middle guarantor's aspect, automatic management.The front end processor of main website aspect adopts " power user power consumption information acquisition system communication protocol " as Data Transport Protocol; and on former protocol basis, adding residual current monitoring and RCD control and management contiguous items and communication protocol, described data item comprises: the data item of the aspects such as archives, service data, parameter and control.
Wherein, public transformer terminals telecommunication part agreement also increases the data item and communication protocol that residual current is monitored and RCD control and management is relevant, or adopt transparent transmission mode, RCD at different levels is run measuring and control data and carries out relay forwarding to long-range main website aspect; The RS-485 local communication interface part of public transformer terminals also increases " RCD communication protocol " as the data transfer communication protocol between first order RCD; " multi-function watt-hour meter communication protocol " after the carrier wave local communication interface part of public transformer terminals also increases improvement is as the Data Transport Protocol communicated with middle guarantor's aspect device.Public transformer terminals also expands respective data storage space, for the configuration parameter, the service data that store with forward with total guarantor, the relevant residual current monitoring and protecting of middle guarantor.
Wherein, in the combination unit of the 485/ carrier converter+RCD of middle guarantor's aspect, 485/ carrier converter is a kind of communication interface and Data Transport Protocol transducer, be responsible for the bi-directional conversion of RS-485 and low voltage power line carrier physical interface, the Data Transport Protocol of " multi-function watt-hour meter communication protocol " after being responsible for " RCD communication protocol " and improving is changed; It is a kind of RCD with carrier communication function that carrier leak is protected, and adopts " multi-function watt-hour meter communication protocol " after improving as Data Transport Protocol, the RCD adopting low-voltage powerline carrier communication mode; Leak protect ammeter, be a kind of have residual current monitoring with action protection, adopt " multi-function watt-hour meter communication protocol " after improving as Data Transport Protocol, the carrier wave intelligent electric meter adopting low-voltage powerline carrier communication mode.
Always protecting aspect; when having many and always protecting; electrical main connecting wire relation between each total guarantor has " total-point " or " equity " two kinds of relations; public transformer terminals carries out identifying according to its wiring relation, parameter management and data store; and verification management leakage current detect relaying configuration definite value parameter, make each the superior and the subordinate's matching relationship that always can carry out the action of aftercurrent action protecting selectivity between guarantor.
In middle guarantor's aspect, for 485/ carrier converter+RCD combination unit or have carrier communication function carrier leak protect or leak protect ammeter, all include two groups of aftercurrent action protecting setting parameters, wherein, first group of setting parameter [I1, t1] is for triggering the residual current protection action of RCD itself; Second group of setting parameter [I2, t2] is triggered RCD and is reported to the police and form logout, the installation protected for drain conditions on the downside of record analysis and family and leak electricity and just guaranteeing action situation.
With reference to shown in Fig. 2, the low voltage electric network wiring system of low-voltage power distribution station area is TT system, and low-voltage circuit has three road low-pressure line-outgoings.Total guarantor's aspect comprises a public transformer terminals and four total guarantors are installed in a comprehensive distribution box jointly; three-phase voltage loop/input power the terminal of public transformer terminals is connected on public distribution low-voltage side with on the corresponding conductor terminals always protected between 0 respectively by ABCN binding post; the electrical wiring of four first order residual current operated protective devices closes and is " total-point " relation; total guarantor 0 always protects for higher level; total guarantor 1-3 is secondary total guarantor, and namely always guarantor 0 and total guarantor between 1-3 form aftercurrent action protecting the superior and the subordinate matching relationship.Always protecting for each all adopts RS-485 bus mode to communicate with public transformer terminals; public transformer terminals is as total aftercurrent action protecting management coordination device protected; realize the unified management to each total guarantor; and as total communication host computer protected, realize total guarantor and the storage of main website related data, relay forwarding.In platform district, the concentrator that public transformer terminals is checked meter as low pressure carrier wave, low-voltage circuit along dispersion on trunk or branch line, some quantity low-voltage carrier intelligent ammeters are installed, see figure ammeter 11-1n, ammeter 21-2n or leak and protect ammeter, see that figure leaks and protect ammeter 31-3n.
Public transformer terminals is not only the conventional power information data concentrator of carrier intelligent ammeter, is also the repeating device of residual current monitoring and protecting data of each total guarantor, middle guarantor, is responsible for related data to be forwarded to main website.
In middle guarantor's aspect, all kinds of middle protection device carries out data communication directly or indirectly through the carrier interface of low voltage power line carrier mode and public transformer terminals, adopt " multi-function watt-hour meter communication protocol " as Data Transport Protocol, realize the complete compatibility with common carrier intelligent ammeter data communication transmission media, communication protocol.The combination unit of 485/ carrier converter+RCD, carrier leak are protected, leak three types aftercurrent action protecting equipment such as protecting ammeter joins in the carrier communication network of power distribution station as one of the Carrier Node of low-voltage automatic reading meter system; jointly realize adaptive full dynamic trunking (networking) with other carrier intelligent ammeter, jointly realize the relaying force transfer of conventional power information data, residual current monitoring and protecting data.
Middle guarantor comprises three types: the 1st class is that the combination unit of 485/ carrier converter+RCD is as middle guarantor, the inlet wire side in user's electrical energy metering tank can be installed on, realized monitoring and aftercurrent action protecting power consumer residual current on the downside of it by this combination unit, it is the relation of " one-to-many " that middle guarantor and family are protected, realize each power consumer residual current in table case by middle guarantor to monitor, and protect with family and realize the superior and the subordinate and protect aftercurrent action protecting to coordinate, be applicable to the existing transformation with RS-485 communication interface type RCD and access monitoring system, 2nd class is that carrier leak protects guarantor in conduct, and carrier leak is protected and referred to a kind of RCD with carrier communication function, and its effect is identical with the first kind, 3rd class leaks to protect ammeter as middle guarantor, leak the total input-wire place protecting ammeter and change installation one into only without the air switch of aftercurrent action protecting function, residual current monitoring or aftercurrent action protecting is carried out by ammeter, leaking that to protect that ammeter and family protect be the relation of " one to one ", is electric leakage backup protection equipment and the monitoring equipment of family guarantor corresponding to it.Protect in 3 described types, because of the difference of infield, the mode of connection, load capacity, can be divided into " protecting in three-phase " and " single-phase middle guarantor ".
Total guarantor selects three pole four line time lagged type protectors; there is electic protection function and the automatic reclosing functions such as electric leakage, overcurrent, short circuit; there is operating condition information measurement, display, storage and RS-485 communication interface, realize interconnected by RS-485 communication interface and public transformer terminals.Middle guarantor selects the time lagged type protector of electic protection functions such as having electric leakage, overcurrent, short circuit and automatic reclosing function or leaks and protects ammeter; there is operating condition information measurement, display, storage and line carrier communication interface, realize interconnected by carrier communication interface and public transformer terminals.
Three grades of aftercurrent action protecting setting parameters following (following parameter is only citing, not can only adopt described parameter):
Total guarantor 0: rated residual operating current 500mA, specified residue non-operating current 250mA, action 0.5s time of delay, automatic reclosing time 20s
Total guarantor 1-3: rated residual operating current 200mA, specified residue non-operating current 100mA, action 0.3s time of delay, automatic reclosing time 30s
Middle guarantor's Class1-3: rated residual operating current 50mA, specified residue non-operating current 25mA, time of delay 0.15s, automatic reclosing time 60s
Family is protected: 30mA or 15mA, without time of delay, without automatic reclosing function
System cloud gray model action matching relationship is analyzed:
1, there is not leak current fault in platform district.Public transformer terminals for interval timing gathers residual current data by RS-485 or power line carrier communication mode from each total guarantor, middle guarantor with 15 minutes, 30 minutes or 60 minutes, and uploads to main website and carries out data preservation and analysis.
2, platform Qu always protects circuit generation single phase ground fault between middle guarantor.Power circuit generation single phase ground fault between protecting in total 1-3 to its correspondence of guarantor, if earth current is less than rated residual operating current 200mA, then each total guarantor is all failure to actuate, main website still timing receipt to relevant residual current data, when earth current is greater than rated residual operating current 500mA and the duration be greater than 0.3s, corresponding total guarantor 1-3 is by automatic trip open-circuit line, and generate message residual current data and trip operation event information are sent to public transformer terminals in real time by RS-485 interface, information is forwarded to main website by public transformer terminals immediately, when earth current is greater than rated residual operating current 200mA and the duration be greater than 0.3s, when earth current is greater than rated residual operating current 500mA and the duration be greater than 0.3s, due to the difference of residual current acting delay time parameter, corresponding total guarantor 1-3 incites somebody to action first automatic trip open-circuit line, and generate message residual current data and trip operation event information are sent to public transformer terminals in real time by RS-485 interface, information is forwarded to main website by public transformer terminals immediately, total guarantor 0 does not reach 0.5s due to action time of delay, still remain on "on" position, only when total protect 1-3 to break down because of itself or tripping mechanism tripping time, total guarantor 0 just may automatic trip.Total guarantor 0 or total 1-3 that protects are monitoring after residual current out-of-limit and duration meets the delay requirement of setting first, execution automatic trip operates, public transformer terminals detects total on-off switch position relationship protected by according to each total guarantor's feedack, determine whether the event that there is overstep tripping fault, send the control information of " Enable/Disable " automatic reclosing to corresponding total guarantor, and relevant information is reported and submitted to main website by remote data communication mode.
3, middle circuit or the user's electric equipment generation leak current fault protecting downside.Middle guarantor is responsible for monitoring the residual current situation of circuit on the downside of it or user's electric equipment, and as the standby RCD that family on the downside of it is protected.Measured residual current data are uploaded to public transformer terminals by power circuit in power line carrier communication mode by its power line carrier interface timing by middle guarantor, then upload to main website by public transformer terminals timing forwarding.When the residual electricity flow valuve flowing through middle guarantor exceedes its specified operating value and meets delay requirement, middle guarantor's residual current protecting trip operation will be caused, disconnect its underside circuits, and according to the parameter preset, delayed automatic reclosing.Middle guarantor point, feed motion and residual current data upload to public transformer terminals by power circuit in real time in power line carrier communication mode, then forwarded in real time by public transformer terminals and upload to main website.For Class1, middle guarantor described in type 2, on the downside of it is corresponding is one or many families guarantors, residual current data are uploaded by Timing measurement, can the distribution situation of long-range understanding residual current in power consumer side and variation tendency, due to middle guarantor, the aftercurrent action protecting definite value that family is protected and delay time have definite value differential, when the residual current numerical value that central guarantor measures continuation is greater than the aftercurrent action protecting setting value (30mA or 15mA) of family guarantor but is less than itself action protection setting value (50mA), by the analysis of main station system, can infer that the power consumer on the downside of it has at least a non-normal mounting family, family to protect, or the family of installing is kept at fault, protect in realization, the remote monitoring of ruuning situation is protected at family.Protect in described in type 3; its corresponding downside only has a power consumer; therefore; protect in such that to protect with family be the relation of " one to one "; namely often merely hitting, the family security personnel protecting an only responsible monitoring power consumer fill, ruuning situation, reduce residual current measuring range, improve the accuracy that installation rate, operational percentage monitoring are protected in family further; the accuracy of further raising leak current fault location, and effectively reduce the Electrical Safety risk of three-phase RCD protection caused by " dead band ".
Always protect the public transformer terminals of interconnected access simultaneously, selectivity aftercurrent action protecting for many, adopt RS-485 bus communication mode, real-time, public transformer terminals always can be protected each and coordinate and manage, and relay forwarding always protects operating condition information and action message.
Middle guarantor adopts the public transformer terminals of the interconnected access of power line carrier communication mode, and middle guarantor can protect to the family on the downside of it validity monitoring that puts into operation, and especially adopts the 3rd class device--and leak and protect ammeter as middle guarantor, can protect to family the monitoring realizing " one to one ".
The above, be only preferred embodiment of the present invention, therefore can not limit scope of the invention process with this, and the equivalence namely done according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is rural power grids power distribution station residual current remote monitoring and managing system block diagram.
Fig. 2 is earth leakage protective device classification installation site, rural power grids power distribution station schematic diagram.
Fig. 3 is ammeter data and residual current data force transfer schematic diagram.
Claims (8)
1. one kind has the power information acquisition system of residual current monitoring function, comprise main website aspect, be in total guarantor's aspect of power distribution station low-pressure side, be in middle guarantor's aspect between total guarantor's aspect and user, it is characterized in that: main website aspect has interconnective front end processor and server, total guarantor's aspect has and is arranged on first order RCD on the low-pressure side circuit of power distribution station and public transformer terminals, middle guarantor's aspect has the second level RCD be arranged between total guarantor's aspect and user on circuit, residual current information and running state information are transferred to public change acquisition terminal by power line carrier mode by second level RCD, residual current information and running state information are transferred to public change acquisition terminal by 485 buses by first order RCD, public change acquisition terminal and front end processor communicate to connect, for the residual current information of collection and running state information are uploaded onto the server, and can receive with the control command of forwarding server to control first, second level RCD action.
2. a kind of power information acquisition system with residual current monitoring function according to claim 1; it is characterized in that: described second level RCD is arranged on the main line of middle guarantor's aspect, 485/ carrier converter that this second level RCD has 485 communication interfaces and is connected with 485 communication interfaces.
3. a kind of power information acquisition system with residual current monitoring function according to claim 1; it is characterized in that: described second level RCD is arranged on the main line of middle guarantor's aspect, and this second level RCD has carrier communication interface.
4. a kind of power information acquisition system with residual current monitoring function according to claim 1, is characterized in that: the residual current of described second level RCD is monitored and action protection function is built-in is integrated in the electric energy meter of middle guarantor's aspect.
5. a kind of power information acquisition system with residual current monitoring function according to claim 1 or 2 or 3 or 4; it is characterized in that: described middle guarantor's aspect is provided with the low-voltage carrier intelligent electric energy meter with described public transformer terminals carrier communication; described second level RCD has the low-voltage power line carrier communication module identical or compatible with low-voltage carrier intelligent electric energy meter; adopt or compatible communication protocol identical with low-voltage carrier intelligent electric energy meter, directly can carry out data communication with described public transformer terminals and low-voltage carrier intelligent electric energy meter.
6. a kind of power information acquisition system with residual current monitoring function according to claim 5, it is characterized in that: described second level RCD joins in the carrier communication network of power distribution station as the Carrier Node of low-voltage automatic reading meter system, full dynamic trunking networking is jointly participated in low-voltage carrier intelligent electric energy meter, the data of low-voltage carrier intelligent electric energy meter both force transfer electric energy meter, also the data of force transfer second level RCD, and, the data of second level RCD both force transfer same device, also the data of force transfer electric energy meter.
7. a kind of power information acquisition system with residual current monitoring function according to claim 1 or 2 or 3 or 4, is characterized in that: each branch line of described total guarantor's aspect is all provided with described first order RCD.
8. a kind of power information acquisition system with residual current monitoring function according to claim 1 or 2 or 3 or 4, is characterized in that: each branch line of described total guarantor's aspect and main line are all provided with described first order RCD.
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Cited By (7)
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| CN105226618A (en) * | 2015-09-23 | 2016-01-06 | 国网山东桓台县供电公司 | Earth leakage protective device and leakage switch centralized control method |
| CN105281346A (en) * | 2015-11-27 | 2016-01-27 | 国网重庆市电力公司电力科学研究院 | Remote rural network power distribution line reactive monitoring system |
| CN105762937A (en) * | 2016-04-26 | 2016-07-13 | 宁波三星智能电气有限公司 | Rural power grid intelligence distribution transform terminal of secondary electric leakage protection |
| CN108037334A (en) * | 2015-11-27 | 2018-05-15 | 浙江八达电子仪表有限公司 | Gather the single-phase intelligent electric energy meter structure of residual current |
| CN109818423A (en) * | 2019-04-08 | 2019-05-28 | 国网福建省电力有限公司 | A kind of intelligent O&M distribution system based on management mode of taking the initiative in offering a hand |
| CN111044844A (en) * | 2019-12-05 | 2020-04-21 | 国网辽宁省电力有限公司大连供电公司 | Power supply station area fault positioning system and method based on leakage protection device |
| CN114336968A (en) * | 2021-12-29 | 2022-04-12 | 广东电网有限责任公司 | Low-voltage power distribution system and data communication method of low-voltage power distribution system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022571A (en) * | 2014-05-19 | 2014-09-03 | 国电南瑞科技股份有限公司 | Electrical load monitoring system and method based on autonomous wireless networking |
| CN104092229A (en) * | 2014-07-14 | 2014-10-08 | 山东卓尔电气有限公司 | Distributed type power supply zone branch circuit three-phase load current balance monitoring method and device |
| CN203871924U (en) * | 2014-05-19 | 2014-10-08 | 国电南瑞科技股份有限公司 | Electrical load monitoring system based on autonomous wireless networking |
| CN104410169A (en) * | 2014-12-18 | 2015-03-11 | 国网四川大英县供电有限责任公司 | Intelligent and online area monitoring system and implementation method thereof |
-
2015
- 2015-05-19 CN CN201510255580.3A patent/CN104821661B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022571A (en) * | 2014-05-19 | 2014-09-03 | 国电南瑞科技股份有限公司 | Electrical load monitoring system and method based on autonomous wireless networking |
| CN203871924U (en) * | 2014-05-19 | 2014-10-08 | 国电南瑞科技股份有限公司 | Electrical load monitoring system based on autonomous wireless networking |
| CN104092229A (en) * | 2014-07-14 | 2014-10-08 | 山东卓尔电气有限公司 | Distributed type power supply zone branch circuit three-phase load current balance monitoring method and device |
| CN104410169A (en) * | 2014-12-18 | 2015-03-11 | 国网四川大英县供电有限责任公司 | Intelligent and online area monitoring system and implementation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 韩雷等: "新型农村剩余电流分级保护系统", 《农村电气化》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226618A (en) * | 2015-09-23 | 2016-01-06 | 国网山东桓台县供电公司 | Earth leakage protective device and leakage switch centralized control method |
| CN105281346A (en) * | 2015-11-27 | 2016-01-27 | 国网重庆市电力公司电力科学研究院 | Remote rural network power distribution line reactive monitoring system |
| CN108037334A (en) * | 2015-11-27 | 2018-05-15 | 浙江八达电子仪表有限公司 | Gather the single-phase intelligent electric energy meter structure of residual current |
| CN105762937A (en) * | 2016-04-26 | 2016-07-13 | 宁波三星智能电气有限公司 | Rural power grid intelligence distribution transform terminal of secondary electric leakage protection |
| CN109818423A (en) * | 2019-04-08 | 2019-05-28 | 国网福建省电力有限公司 | A kind of intelligent O&M distribution system based on management mode of taking the initiative in offering a hand |
| CN111044844A (en) * | 2019-12-05 | 2020-04-21 | 国网辽宁省电力有限公司大连供电公司 | Power supply station area fault positioning system and method based on leakage protection device |
| CN114336968A (en) * | 2021-12-29 | 2022-04-12 | 广东电网有限责任公司 | Low-voltage power distribution system and data communication method of low-voltage power distribution system |
| CN114336968B (en) * | 2021-12-29 | 2024-04-30 | 广东电网有限责任公司 | Low-voltage power distribution system and data communication method thereof |
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