CN106786418A - A kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations - Google Patents

A kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations Download PDF

Info

Publication number
CN106786418A
CN106786418A CN201611176480.2A CN201611176480A CN106786418A CN 106786418 A CN106786418 A CN 106786418A CN 201611176480 A CN201611176480 A CN 201611176480A CN 106786418 A CN106786418 A CN 106786418A
Authority
CN
China
Prior art keywords
switchyard
station
switch
inlet wire
interconnection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611176480.2A
Other languages
Chinese (zh)
Inventor
李春杰
顾黎强
张麟
帅志飞
潘晨亮
周阮瑜
周元祺
吴泳英
杨永华
吴俊�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Shanghai Electric Power Co Ltd
Original Assignee
State Grid Shanghai Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Shanghai Electric Power Co Ltd filed Critical State Grid Shanghai Electric Power Co Ltd
Priority to CN201611176480.2A priority Critical patent/CN106786418A/en
Publication of CN106786418A publication Critical patent/CN106786418A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured

Abstract

The invention discloses a kind of relay protection scheme system for being used for and getting in touch between 10 kilovolts of switchyard stations, comprising:The two-way power supply of each switchyard comes from and interconnection between station is set between different substation, and switchyard in three switchyards;Reserved 1 interval of every section of bus of switchyard sets interconnection between station, is formed with proximity switches station and handed in hand, open loop operation;Three switchyards are single mother partition mode of connection, each switchyard has two to return back out line back into line six respectively, and the two of each switchyard comes from two different substations back into line, when normally running, three end switch of contact special line one are running status, and another end switch is hot stand-by duty.The present invention by setting up switchyard station between get in touch with, switchyard will obtain stand-by power supply in addition to two-way inlet wire, for the horizontal transfer of load provides rack basis, improve power supply redundancy degree, raising power supply reliability.

Description

A kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations
Technical field
The present invention relates to intelligent power grid technology field, and in particular to a kind of relay for being used to get in touch between 10 kilovolts of switchyard stations Relaying configuration system.
Background technology
Intelligent grid is the direction of China Power Grids future development.From the point of view of the feature that distribution directly serves in user, intelligence Change distribution construction and ensure that uninterrupted reliable power supply, and can provide a user with high-quality electric energy and good service and distribution accident from The functions such as dynamic isolation.Planning, the relay of power distribution network are be unable to do without as the realization of the self-healing function of intelligent grid principal character simultaneously Relaying configuration and adjust and distribution automation energy aspects cooperation work.
Power distribution network is the part that power consumer is region be directly facing in power system, be ensure power supply quality, customer service experience, Improve the key link of power system business efficiency.As the rise and user of intelligent power grid technology are to power supply quality, power supply The continuous improvement of reliability requirement, the intelligent high-pressure power distribution network with self-healing feature is of great interest and payes attention to, self-healing Control technology covers control protection field and distribution network automated many new developments, is to conventional electrical distribution automatic technology Extend and realize the intelligentized Main Means of power distribution network, be the inexorable trend of following intelligent distribution network development.From the angle of user From the point of view of " self-healing " enable power network automatic fast recovery of power supply when breaking down, allow resident and user are almost imperceptible to stop Electricity;Whole process does not need manual intervention, is all automatically performed by intelligence system, and power off time is by from conventional 2 to 3 hours Foreshorten to 2 minutes or even several seconds.
Workload demand is only met in Electric Power Network Planning of the prior art and coulomb balance is supplied, what economy, applicability considered Many, what security, reliability considered lacks, and Its Relevant Technology Standards are less than domestic and international similar city standard level, are caused from source There is such as " false double back ", " statements based on collusion " isostructuralism security risk in power network, leave accident potential.Therefore, further investigation electricity is needed badly Net Connection Mode, the optimization of electric network composition is carried out, and studies it that relay protection and automatics are based under the various methods of operation Self-healing function.
The content of the invention
It is an object of the invention to provide a kind of relay protection scheme system for being used for and getting in touch between 10 kilovolts of switchyard stations, lead to Cross and got in touch between setting up switchyard station, switchyard will obtain stand-by power supply in addition to two-way inlet wire, for the horizontal transfer of load is provided Rack basis, improves power supply redundancy degree, improves power supply reliability.
In order to achieve the above object, the present invention is achieved through the following technical solutions:One kind is between 10 kilovolts of switchyard stations The relay protection scheme system of contact, is characterized in, comprising:
First transformer station, a 10kV buses are provided with the first described transformer station;
Second transformer station, the 2nd 10kV buses are provided with the second described transformer station;
First switch station, described first switch station is provided with the first sectionalized busbar and the second segmentation mother of interconnection Line, is connected between the first described sectionalized busbar and a 10kV buses by first switch station inlet wire, the second described segmentation Connected by second switch station inlet wire between bus and the 2nd 10kV buses;
Second switch station, described second switch station is provided with the 3rd sectionalized busbar and the 4th segmentation mother of interconnection Line, is connected between the 3rd described sectionalized busbar and a 10kV buses by the 3rd switchyard inlet wire, the 4th described segmentation Connected by the 4th switchyard inlet wire between bus and the 2nd 10kV buses;
3rd switchyard, the 3rd described switchyard is provided with the 5th sectionalized busbar and the 6th segmentation mother of interconnection Line, is connected between the 5th described sectionalized busbar and first switch station by interconnection between first stop, and the 6th described segmentation is female Connected by interconnection between second station between line and second switch station;
3rd transformer station, is connected by the 5th switchyard inlet wire with the 5th described sectionalized busbar;
4th transformer station, is connected by the 6th switchyard inlet wire with the 6th described sectionalized busbar;Wherein
Connected by interconnection between the 3rd station between described first switch station and second switch station.
Described first switch station, second switch station and the 3rd switchyard include six articles of switchyard outlets.
Switchyard wire-outgoing breaker is provided with described switchyard outlet.
Described first switch station, second switch station and the 3rd switchyard include a backup auto-activating device, described first Switchyard, second switch station and the 3rd switchyard pass through backup auto-activating device cut-in stand-by power supply.
A described 10kV buses are provided with the first substation breakers, and described the first substation breakers position Between described first switch station inlet wire and the 3rd switchyard inlet wire;The 2nd described 10kV buses are provided with the second transformer station Breaker, and described the second substation breakers be located at described second switch station inlet wire and the 4th switchyard inlet wire it Between.
One first switch station section switch is set between the first described sectionalized busbar and the second sectionalized busbar;Described One second switch station section switch is set between the 3rd sectionalized busbar and the 4th sectionalized busbar;Described the 5th sectionalized busbar with One the 3rd switchyard section switch is set between the 6th sectionalized busbar.
On described first switch station inlet wire, second switch station inlet wire, the 3rd switchyard inlet wire and the 4th switchyard inlet wire It is respectively provided with two switchyard lead-in circuit breakers.
On described first switch station inlet wire, second switch station inlet wire, the 3rd switchyard inlet wire and the 4th switchyard inlet wire Configure longitudinal differential protection.
Between being respectively provided with two stations between described first stop between interconnection, second station between interconnection and the 3rd station on interconnection Network interconnecting circuit.
Configured on interconnection between interconnection and the 3rd station between interconnection, second station between described first stop and indulge differential guarantor Shield.
A kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations of the present invention has compared with prior art Have the advantage that:Got in touch between by setting up switchyard station, switchyard will obtain stand-by power supply in addition to two-way inlet wire, be load Horizontal transfer provides rack basis, improves power supply redundancy degree, improves power supply reliability;Due to being provided with backup auto-activating device, by standby Automatic bus cut-in stand-by power supply, due to the multiple advantage such as its independence, logic be simple, on the basis of power distribution automation, gesture The grid structure of power distribution network must be further improved, the speed of distribution self-healing is lifted.
Brief description of the drawings
Fig. 1 is that a kind of overall structure of the relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations of the present invention is shown It is intended to.
Specific embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
A kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations, as shown in figure 1, comprising:First becomes Power station 100, a 10kV buses 101 are provided with the first described transformer station 100;Second transformer station 200, the second described change The 2nd 10kV buses 201 are provided with power station 200;First switch station 300, described first switch station 300 is provided with and mutually interconnects The first sectionalized busbar 301 and the second sectionalized busbar 302 for connecing, the first described sectionalized busbar 301 and a 10kV buses 101 it Between connected by first switch station inlet wire 303, by the between the second described sectionalized busbar 302 and the 2nd 10kV buses 201 Two switchyard inlet wires 304 are connected;Second switch station 400, described second switch station 400 is provided with the 3rd segmentation of interconnection The sectionalized busbar 402 of bus 401 and the 4th, opens between the 3rd described sectionalized busbar 401 and a 10kV buses 101 by the 3rd Close station inlet wire 403 to connect, the 4th switchyard inlet wire is passed through between the 4th described sectionalized busbar 402 and the 2nd 10kV buses 201 404 connections;3rd switchyard 500, the 3rd described switchyard 500 is provided with the 5th sectionalized busbar 501 and of interconnection Six sectionalized busbars 502, are connected between the 5th described sectionalized busbar 501 and first switch station 300 by interconnection 801 between first stop Connect, connected by interconnection 802 between second station between the 6th described sectionalized busbar 502 and second switch station 400;3rd power transformation Stand 600, be connected with the 5th described sectionalized busbar 501 by the 5th switchyard inlet wire 503;4th transformer station 700, by the 6th Switchyard inlet wire 504 is connected with the 6th described sectionalized busbar 502;Wherein, described first switch station 300 and second switch station Connected by interconnection 803 between the 3rd station between 400.
In the present embodiment, described first switch station 300 includes six switchyard outlets, in each switchyard outlet It is respectively provided with a switchyard wire-outgoing breaker;Second switch station 400 includes six switchyard outlets, in each switchyard outlet It is respectively provided with a switchyard wire-outgoing breaker;3rd switchyard 500 includes six articles of switchyard outlets, in each switchyard outlet It is respectively provided with a switchyard wire-outgoing breaker.
In the present embodiment, described first switch station 300, the switchyard 500 of second switch station 400 and the 3rd includes one Backup auto-activating device, and described first switch station 300, the switchyard 500 of second switch station 400 and the 3rd pass through backup auto-activating device Cut-in stand-by power supply, it is ensured that customer power supply reliability, due to the multiple advantage such as its independence, logic be simple, in power distribution automation On the basis of, the grid structure of power distribution network can certainly will be further improved, lift the speed of distribution self-healing.
In the present embodiment, a described 10kV buses 101 are provided with the first substation breakers 102, and described The first substation breakers 102 be located between described first switch station inlet wire 303 and the 3rd switchyard inlet wire 403;It is described The 2nd 10kV buses 201 be provided with the second substation breakers 202, and the second described substation breakers 202 are located at Between described second switch station inlet wire 304 and the 4th switchyard inlet wire 404.
In the present embodiment, a first switch is set between the first described sectionalized busbar 301 and the second sectionalized busbar 302 Stand section switch 305;One second switch station point is set between the 3rd described sectionalized busbar 401 and the 4th sectionalized busbar 402 Section breaker 405;It is disconnected that the segmentation of one the 3rd switchyard is set between the 5th described sectionalized busbar 501 and the 6th sectionalized busbar 502 Road device 505.
In the present embodiment, two switchyard lead-in circuit breakers are set on described first switch station inlet wire 303, wherein one , near the first described transformer station 100, another switchyard lead-in circuit breaker 306 is near institute for individual switchyard lead-in circuit breaker 103 The first switch station 300 stated;Two switchyard lead-in circuit breakers, one of switchyard are set on second switch station inlet wire 304 , near the first described transformer station 200, another switchyard lead-in circuit breaker 307 is near described first for lead-in circuit breaker 203 Switchyard 300;Two switchyard lead-in circuit breakers, one of switchyard inlet wire open circuit are set on the 3rd switchyard inlet wire 403 , near the first described transformer station 100, another switchyard lead-in circuit breaker 406 is near described second switch station for device 104 400;Two switchyard lead-in circuit breakers are set on the 4th switchyard inlet wire 404, and one of switchyard lead-in circuit breaker 204 is leaned on Nearly the second described transformer station 200, another switchyard lead-in circuit breaker 407 is near described second switch station 400;Preferably Ground, described first switch station inlet wire 303, second switch station inlet wire 304, the 3rd switchyard inlet wire 403 and the 4th switchyard enter Longitudinal differential protection is configured on line 404, it is ensured that any point failure of circuit can instantaneously cut off.After being broken down on circuit, distribution Automate the as follows of troubleshooting:(1) occurred according to failure information about power failure judgement after feeder line breaks down, while according to weight Feed motion situation:Reclosing success regard as transient fault, and troubleshooting is finished;It is unsuccessful to regard as permanent fault, Transformer station's wire-outgoing breaker tripping operation disengagement failure electric current.(2) main website reported according to the distribution terminal being collected into each switch Fault message judges fault zone.The corresponding fault zone peripheral switch separating brake isolated fault region of remote control, and remote control is corresponding The interconnection switch combined floodgate of transformer station's wire-outgoing breaker and corresponding ring main unit recovers healthy sections and powers, and relevant information is stored in forever Property troubleshooting record.
In the present embodiment, network interconnecting circuit between two stations is set between described first stop on interconnection 801, one of them Between standing network interconnecting circuit 308 near between described first switch station 300, another station network interconnecting circuit 506 near described the Three switchyards 500;Set on interconnection 802 between described second station and got in touch between network interconnecting circuit between two stations, one of station The 3rd switchyard of network interconnecting circuit 507 described near between described second switch station 400, another station of breaker 408 500;Network interconnecting circuit 309 between network interconnecting circuit between two stations, one of station is set between the 3rd described station on interconnection 803 Network interconnecting circuit 409 is near described second switch station 400 near between described first switch station 300, another station;Preferably Configured on interconnection 803 between the station of interconnection 802 and the 3rd between interconnection 801, second station between ground, described first stop vertical differential Protection, it is ensured that any point failure of circuit can instantaneously cut off.After being broken down on circuit, power distribution automation troubleshooting as Under:(1) occurred according to failure information about power failure judgement after feeder line breaks down, while acting situation according to reclosing:Overlap Lock successfully regards as transient fault, and troubleshooting is finished;Unsuccessful to regard as permanent fault, transformer station's wire-outgoing breaker is jumped Lock disengagement failure electric current.(2) each fault message for switching that main website is reported according to the distribution terminal being collected into judges to be out of order Region.The corresponding fault zone peripheral switch separating brake isolated fault region of remote control, and the corresponding transformer station's wire-outgoing breaker of remote control and The interconnection switch combined floodgate of corresponding ring main unit recovers healthy sections and powers, and relevant information is stored in into permanent fault treatment record.
In the present invention, in three switchyards each switchyard two-way power supply come from different substation, and switchyard it Between set station between interconnection.Losing on two-way in the case of level power supply, switchyard remains to transfer load, realizing laterally standby. Reserved 1 interval of every section of bus of switchyard sets interconnection between station, is formed with proximity switches station and handed in hand, and open loop operation joins between standing The line footpath of winding thread is identical with switchyard inlet wire.Three switchyards are single mother partition mode of connection, and each switchyard has two respectively Line is returned back out back into line six, the two of each switchyard comes from two different substations, when normally running, three contact special lines back into line One end switch is running status, and another end switch is hot stand-by duty.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for of the invention Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (10)

1. a kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations, it is characterised in that include:
First transformer station, a 10kV buses are provided with the first described transformer station;
Second transformer station, the 2nd 10kV buses are provided with the second described transformer station;
First switch station, described first switch station is provided with first sectionalized busbar and the second sectionalized busbar of interconnection, institute Connected by first switch station inlet wire between the first sectionalized busbar stated and a 10kV buses, described the second sectionalized busbar with Connected by second switch station inlet wire between 2nd 10kV buses;
Second switch station, described second switch station is provided with the 3rd sectionalized busbar and the 4th sectionalized busbar of interconnection, institute Connected by the 3rd switchyard inlet wire between the 3rd sectionalized busbar stated and a 10kV buses, described the 4th sectionalized busbar with Connected by the 4th switchyard inlet wire between 2nd 10kV buses;
3rd switchyard, the 3rd described switchyard is provided with the 5th sectionalized busbar and the 6th sectionalized busbar of interconnection, institute Connected by interconnection between first stop between the 5th sectionalized busbar stated and first switch station, described the 6th sectionalized busbar and the Connected by interconnection between second station between two switchyards;
3rd transformer station, is connected by the 5th switchyard inlet wire with the 5th described sectionalized busbar;
4th transformer station, is connected by the 6th switchyard inlet wire with the 6th described sectionalized busbar;Wherein
Connected by interconnection between the 3rd station between described first switch station and second switch station.
2. relay protection scheme system as claimed in claim 1, it is characterised in that described first switch station, second switch Stand and the 3rd switchyard includes six articles of switchyard outlets.
3. relay protection scheme system as claimed in claim 2, it is characterised in that be provided with described switchyard outlet Switchyard wire-outgoing breaker.
4. relay protection scheme system as claimed in claim 1, it is characterised in that described first switch station, second switch Stand and the 3rd switchyard is comprising a backup auto-activating device, described first switch station, second switch station and the 3rd switchyard pass through Backup auto-activating device cut-in stand-by power supply.
5. relay protection scheme system as claimed in claim 1, it is characterised in that a described 10kV buses are provided with One substation breakers, and the first described substation breakers are located at described first switch station inlet wire and the 3rd switchyard Between inlet wire;The 2nd described 10kV buses are provided with the second substation breakers, and the second described substation breakers Between described second switch station inlet wire and the 4th switchyard inlet wire.
6. relay protection scheme system as claimed in claim 1, it is characterised in that the first described sectionalized busbar and second point A first switch station section switch is set between section bus;Set between the 3rd described sectionalized busbar and the 4th sectionalized busbar One second switch station section switch;One the 3rd switchyard point is set between the 5th described sectionalized busbar and the 6th sectionalized busbar Section breaker.
7. relay protection scheme system as claimed in claim 1, it is characterised in that described first switch station inlet wire, second Two switchyard lead-in circuit breakers are respectively provided with switchyard inlet wire, the 3rd switchyard inlet wire and the 4th switchyard inlet wire.
8. the relay protection scheme system as described in claim 1 or 7, it is characterised in that described first switch station inlet wire, Longitudinal differential protection is configured on two switchyard inlet wires, the 3rd switchyard inlet wire and the 4th switchyard inlet wire.
9. relay protection scheme system as claimed in claim 1, it is characterised in that interconnection, second between described first stop It is respectively provided with network interconnecting circuit between two stations between standing between interconnection and the 3rd station on interconnection.
10. the relay protection scheme system as described in claim 1 or 9, it is characterised in that interconnection between described first stop, Between second station longitudinal differential protection is configured between interconnection and the 3rd station on interconnection.
CN201611176480.2A 2016-12-19 2016-12-19 A kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations Pending CN106786418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611176480.2A CN106786418A (en) 2016-12-19 2016-12-19 A kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611176480.2A CN106786418A (en) 2016-12-19 2016-12-19 A kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations

Publications (1)

Publication Number Publication Date
CN106786418A true CN106786418A (en) 2017-05-31

Family

ID=58890069

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611176480.2A Pending CN106786418A (en) 2016-12-19 2016-12-19 A kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations

Country Status (1)

Country Link
CN (1) CN106786418A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113541139A (en) * 2021-09-13 2021-10-22 广东电网有限责任公司中山供电局 Double-branch incoming line single-bus two-section four-section bus ring-shaped spare power automatic switching method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103840439A (en) * 2014-03-31 2014-06-04 国网上海市电力公司 Power distribution automation protecting method achieved by matching of master station and distributed terminals
CN103855713A (en) * 2014-03-31 2014-06-11 国网上海市电力公司 Power distribution net rack wiring structure
CN105375465A (en) * 2015-11-06 2016-03-02 国网上海市电力公司 City center area power distribution network and load transfer method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103840439A (en) * 2014-03-31 2014-06-04 国网上海市电力公司 Power distribution automation protecting method achieved by matching of master station and distributed terminals
CN103855713A (en) * 2014-03-31 2014-06-11 国网上海市电力公司 Power distribution net rack wiring structure
CN105375465A (en) * 2015-11-06 2016-03-02 国网上海市电力公司 City center area power distribution network and load transfer method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113541139A (en) * 2021-09-13 2021-10-22 广东电网有限责任公司中山供电局 Double-branch incoming line single-bus two-section four-section bus ring-shaped spare power automatic switching method

Similar Documents

Publication Publication Date Title
CN103022994B (en) Method for achieving fault isolation and recovery of power distribution network with permeability distribution type power supply
CN107069676A (en) Distribution network failure positions and quickly isolated recovery control method
CN109713794B (en) Distributed intelligent self-recovery system and method
CN104518564A (en) Backup automatic switching apparatus with area automatic switching function, and backup automatic switching method
CN103490392B (en) Fault handling method of power distribution network comprising distributed power supplies and microgrids
CN103384058B (en) Based on transformer station's integration failure protection method of territory, station protection
CN204068430U (en) A kind of intelligence longitudinally interconnected feeder automation control system
WO2021139071A1 (en) Smart outdoor switch cabinet, and closed-loop i-shaped power distribution network for same
CN106026088B (en) Distribution network automated strategy based on the transfer of load layering and zoning
CN106059085B (en) A kind of the Wide Area Power stratification protection and control system
CN102856981A (en) Station-area protection and control device with protection and control functions in converting station
CN105552908A (en) Self-healing control method of power distribution network
CN204156594U (en) A kind of region backup auto-activating device
CN203368127U (en) Spare power automatic switching control equipment for transformer substation network
CN201160223Y (en) Multi-ring website system
CN202550668U (en) Distributed power distribution network management terminal
CN106786418A (en) A kind of relay protection scheme system for being used to get in touch between 10 kilovolts of switchyard stations
CN107591784B (en) A kind of distribution statements based on collusion adaptive incomplete differential protection method of route
CN108923393A (en) The method of the station internal fault isolation for institute's overall power distribution terminal of standing
CN104993587A (en) Intelligent transformer station comprehensive monitoring system and realization method thereof
CN106787141A (en) A kind of extension spare power automatic switching method of 10kV switchyards interconnection
CN101707397A (en) Auto-switch-on system on basis of power grid dispatching and implementation method thereof
CN105449835B (en) A kind of region spare power automatic switching method
CN104124749B (en) The dual-ring network distribution line failure processing method that prepared auto restart coordinates with power distribution automation
CN203481822U (en) Closed loop power supply model of medium voltage 10 kilovolt power distribution network

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20170531

RJ01 Rejection of invention patent application after publication