CN109687415A - The fault diagnosis isolation restoration methods and system of distributed data transport unit - Google Patents
The fault diagnosis isolation restoration methods and system of distributed data transport unit Download PDFInfo
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- CN109687415A CN109687415A CN201811615952.9A CN201811615952A CN109687415A CN 109687415 A CN109687415 A CN 109687415A CN 201811615952 A CN201811615952 A CN 201811615952A CN 109687415 A CN109687415 A CN 109687415A
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- dtu
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/28—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for meshed systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
Abstract
A kind of the fault diagnosis isolation restoration methods and system of distributed data transport unit.This method, comprising the following steps: A, as unit of ring network cabinet configures comprehensive control communication unit, the switchgear distribution protection measure and control unit in each ring network cabinet in each ring network cabinet；B, dual-network is built；C, when distribution network breaks down, each distribution DTU can send the fault message of itself detection to adjacent DTU in a manner of GOOSE, the adjacent side DTU status information and the fault message progress comprehensive descision itself detected that DTU is received according to it, finally determine whether to carry out tripping and closing operation.The present invention is suitable for configuring the distribution network of distribution DTU, builds dual-network, does not interfere with each other.The fast and reliable fault location of terminal can be achieved, and carry out Fault Isolation and service restoration；To improve the reliability of power supply, guarantee power grid security.
Description
Technical field
The present invention relates to a kind of system for distribution network of power network fault diagnosises, the feeder automation side of isolation and fault recovery
Case, suitable for configuring the distribution network of distribution DTU.
Background technique
With the rapid development of our national economy, basic role of the electric power in national economy, electric power are as production
The necessity of basic input and people's lives, the status in national economy are more and more important.Power consumer pair at the same time
Power supply quality and reliability requirement are also higher and higher, and by establishing the distribution network based on looped network, can effectively improve power supply can
By property, guarantee the continuity of power supply, the influence that distribution equipment malfunction, maintenance have a power failure is reduced, in these years ring network cabinet is in distribution
Using increasingly wider in the network rebuilding.
Compared to centralized DTU (Data Transfer Unit, data transmission unit), distributed DTU, which exists, occupies sky
Between it is small, be easy with primary switch cooperation, easy standardized designs, installation and debugging replacement is simple, scope of power outage is small, singlepoint devices failure
Interval, anti-condensation effect is good the advantages that are only influenced, using increasingly wider in the complete supply of material.
The intelligent distributed communication network because not depending on DTU terminal and main website can rapidly and efficiently realize Fault Isolation, supply
Electricity restores, in the important load region large-area applications of many important cities.Intelligent distributed feedback based on distributed DTU
Line automation scheme is also required to develop.
Summary of the invention
One of the objects of the present invention is to provide a kind of fault diagnosises of distributed data transport unit, and restoration methods are isolated,
The fast and reliable fault location of terminal can be achieved, and carry out Fault Isolation and service restoration.
Another object of the present invention is to provide a kind of fault diagnosises of distributed data transport unit, and recovery system is isolated,
The fast and reliable fault location of terminal can be achieved, and carry out Fault Isolation and service restoration.
The purpose of the present invention can be achieved, and the fault diagnosis isolation for designing a kind of distributed data transport unit restores
Method, comprising the following steps:
A, a comprehensive control communication unit is configured as unit of ring network cabinet, in each ring network cabinet, in each ring network cabinet
Main line and branch wiretap configure a protection measure and control unit；
B, dual-network is built；Master station communication network is built, realizes in ring network cabinet and passes through in the information of all distribution DTU
Master station communication network is sent to distribution main website；GOOSE network is built, realizes that the data between terminal are handed over using GOOSE communication mode
Mutually, it realizes the fast and reliable fault location of terminal, and carries out Fault Isolation and service restoration；
C, when distribution network breaks down, each distribution DTU can send the failure of itself detection in a manner of GOOSE
Information gives adjacent DTU, and adjacent side DTU status information that DTU is received according to it and the fault message itself detected carry out comprehensive
Judgement is closed, finally determines whether to carry out tripping and closing operation.
Further, when single supply is powered；
Only have the switch of fault zone and adjacent area to detect fault message when an error occurs；
Completely the terminal of all switches carries out GOOSE information exchange, transmits failure detection result, position of the switch information；
Only one region meets " one and only one switch detects failure in region ", therefore positioning the region is failure
Region；
All equal startup separator isolation logics of block switch in the fault zone, block switch tripping；
Confirm in the region after all block switch trippings, starts interconnection switch combined floodgate logic；
Interconnection switch receives GOOSE starting switching signal, and according to own switch unilateral side decompression condition, start-up study closes a floodgate
Logic；
After interconnection switch receives coincidence, interconnection switch closing success, service restoration.
Further, when more power supply cyclizations are powered, the power direction discriminating element of all distribution DTU is detected in region
Fault direction be flow into the fault zone；
Completely the terminal of all switches carries out GOOSE information exchange, transmits failure detection result, position of the switch information；
Only one region meets " fault direction detected in region is to flow into the fault zone ", therefore positions the area
Domain is fault zone；
The tripping of all equal startup separator isolation logics of block switch in the fault zone, i.e. block switch；
After block switch whole tripping, all non-faulting block supplies are unaffected, are not necessarily to service restoration.
Further, master station communication network and the isolation of GOOSE communication network, comprehensive control communication unit are responsible for logical to main website
Letter.
Further, the information of distributed DTU includes telemetering, remote control, remote signalling information.
Another object of the present invention can be achieved, and design a kind of fault diagnosis isolation of distributed data transport unit
Recovery system, including main website, central site network, GOOSE communication network, interchanger, distribution DTU, distributed DTU are including integrating survey
It controls communication unit and protection measure and control unit, interchanger includes master station communication interchanger, process layer switch；
Each switch gap of ring network cabinet complete set of equipments configures a protection measure and control unit, and each ring network cabinet configures one
Comprehensive control communication unit；Protection measure and control unit is responsible for the observing and controlling function at each interval of ring network cabinet, and distributed DTU is only protected and surveyed
Control unit is included in GOOSE communication network；The communication that comprehensive control communication unit is responsible for each interval protection measure and control unit collects and leads
It stands communication function；An interchanger is configured in each ring network cabinet, using interchanger by distribution DTU groups all in cabinet in consolidated network
In；
Further, central site network and the isolation of GOOSE communication network, comprehensive control communication unit are responsible for master station communication.
Further, the information of distributed DTU includes telemetering, remote control, remote signalling information.
The present invention is suitable for configuring the distribution network of distribution DTU, builds dual-network, does not interfere with each other.Wherein build three
Distant communication network can realize that three remote signalling of all distribution DTU in ring network cabinet cease and send to distribution main website；GOOSE network is built,
Realize that the data interaction between terminal, it can be achieved that the fast and reliable fault location of terminal, and carries out using GOOSE communication mode
Fault Isolation and service restoration.To improve the reliability of power supply, guarantee power grid security.
Detailed description of the invention
Fig. 1 is the communication networking schematic diagram of present pre-ferred embodiments；
Fig. 2 is that the distributed DTU of present pre-ferred embodiments hands in hand main electrical scheme network architecture diagram；
Fig. 3 is the intelligent distributed fault location schematic diagram of single supply of present pre-ferred embodiments；
Fig. 4 is more power supply smart distributed faults positioning schematic diagram of present pre-ferred embodiments.
Specific embodiment
The invention will be further described with reference to embodiments.
A kind of fault diagnosis isolation restoration methods of distributed data transport unit, comprising the following steps:
A, a comprehensive control communication unit is configured as unit of ring network cabinet, in each ring network cabinet, in each ring network cabinet
Main line and branch wiretap configure a protection measure and control unit；
B, dual-network is built；Master station communication network is built, realizes in ring network cabinet and passes through in the information of all distribution DTU
Master station communication network is sent to distribution main website；GOOSE network is built, realizes that the data between terminal are handed over using GOOSE communication mode
Mutually, it realizes the fast and reliable fault location of terminal, and carries out Fault Isolation and service restoration；
C, when distribution network breaks down, each distribution DTU can send the failure of itself detection in a manner of GOOSE
Information gives adjacent DTU, and adjacent side DTU status information that DTU is received according to it and the fault message itself detected carry out comprehensive
Judgement is closed, finally determines whether to carry out tripping and closing operation.
In single supply power supply, as shown in figure 3, motion flow is as follows when failure occurs at depicted area:
Only have the switch of fault zone and adjacent area to detect fault message when an error occurs；In the present embodiment, when
Only have the switch of switch CB1,1,2,3 four to detect fault message when failure occurs；
Completely the terminal of all switches carries out GOOSE information exchange, transmits failure detection result, position of the switch information；
Only one region meets " one and only one switch detects failure in region ", therefore positioning the region is failure
Region；In the present embodiment, only region 3 meets condition, therefore localization region 3 is fault zone；
All equal startup separator isolation logics of block switch in the fault zone, block switch tripping；In the present embodiment, area
3,4 two switch trips of switch in domain 3；
Confirm in the region after all block switch trippings, starts interconnection switch combined floodgate logic；In the present embodiment, region 3
Interior all block switch trippings；
Interconnection switch receives GOOSE starting switching signal, and according to own switch unilateral side decompression condition, start-up study closes a floodgate
Logic；
After interconnection switch receives coincidence, interconnection switch closing success, service restoration；In the present embodiment, switch 5 receives coincidence
Afterwards, interconnection switch closing success.
When more power supply cyclizations are powered, the power direction discriminating element of all distribution DTU detects in region failure side
To be flow into the fault zone；As shown in figure 4, motion flow is as follows when failure occurs at diagrammatically shown region:
Completely the terminal of all switches carries out GOOSE information exchange, transmits failure detection result, position of the switch information；
Only one region meets " fault direction detected in region is to flow into the fault zone ", therefore positions the area
Domain is fault zone；In the present embodiment, only region 1 meets condition, therefore localization region 1 is fault zone；
The tripping of all equal startup separator isolation logics of block switch in the fault zone, i.e. block switch；In the present embodiment,
1,3,5 three switch trip of switch in region 1；
After block switch whole tripping, all non-faulting block supplies are unaffected, are not necessarily to service restoration；The present embodiment
In, after the whole trippings of switch 1,3,5, all non-faulting block supplies are unaffected, are not necessarily to service restoration.
In power supply topology shown in Fig. 4, the only whole trippings of two switches of A1, A2, interconnection switch just will appear unilateral side
Decompression situation just will start service restoration at this time and close contact logic.Two interconnection switches 11 and 14 needs shown in figure pass through
Delay is to distinguish combined floodgate priority；After the high switch of priority, which executes, to close a floodgate, the low switch of priority can be due to being unsatisfactory for one
The side side You Ya is discharged without press strip part, does not continue to close a floodgate.
Master station communication network and the isolation of GOOSE communication network, comprehensive control communication unit are responsible for master station communication.
The information of distributed DTU includes telemetering, remote control, remote signalling information.
As shown in Figure 1, recovery system, including main website, center is isolated in a kind of fault diagnosis of distributed data transport unit
Network, GOOSE communication network, interchanger, distribution DTU, distributed DTU include comprehensive control communication unit and protection observing and controlling list
Member, interchanger include master station communication interchanger, process layer switch.
As unit of ring network cabinet, each switch of ring network cabinet complete set of equipments configures a protection measure and control unit, i.e., each
Main line and branch wiretap in ring network cabinet configure a protection measure and control unit, and a comprehensive survey is configured in each ring network cabinet
Control communication unit；Protection measure and control unit is responsible for the observing and controlling function at each interval of ring network cabinet, and distributed DTU only has protection measure and control unit
It is included in GOOSE communication network；The communication that comprehensive control communication unit is responsible for each interval protection measure and control unit collects and master station communication
Function；An interchanger is configured in each ring network cabinet, using interchanger by distribution DTU groups all in cabinet in consolidated network.
Central site network and the isolation of GOOSE communication network, comprehensive control communication unit are responsible for master station communication and with ring network cabinet
Interior all protection measure and control unit communications.Two networks are respectively used to realize the information exchange of distributed DTU and intelligent distributed
Function.The information of distributed DTU includes telemetering, remote control, remote signalling information.Central site network is completed by serial ports or network interface to set up；
When using serial ports, 103 specification of 101 specification of serial ports or serial ports can be used；When using network interface, can be used IEC-103 or
IEC-104 specification.
GOOSE communication network is the important link of the intelligent distribution type feeder automation scheme based on distributed DTU, distribution
Formula DTU completes information exchange by GOOSE communication network.By data interactions such as fault message, the result of the action, distributed DTU
The positioning, isolation and recovery of failure can be realized at a terrific speed.When distribution network breaks down, each distribution DTU meeting
The adjacent side DTU status information that the fault message of itself detection is received to adjacent DTU, DTU according to it is sent in a manner of GOOSE
And the fault message itself detected carries out comprehensive descision, finally determines whether to carry out tripping and closing operation.In reality
In use, an interchanger is configured in each ring network cabinet, using interchanger by distribution DTU groups all in cabinet in consolidated network
In；Since distance farther out, needs to be attached interchanger using optical fiber networking between ring network cabinet.
As shown in Fig. 2, switch is divided into trunk switch and branch wiretap in the network topology of distribution.Wherein, branch wiretap
It is not involved in intelligent distributed Fault Isolation, due to that trunk switch cannot be caused to malfunction when must assure that fault of branch line in principle.
So branch wiretap also assists in networking in this networking plan.When fault of branch line, branch line can also while starting overcurrent protection
Block signal is sent to the distributed DTU of adjacent trunk switch, trunk switch is avoided to malfunction.In networking, in this ring network cabinet
All main lines, branch wiretap distributed DTU access the same GOOSE interchanger.Using optical fiber by the GOOSE between ring network cabinet
Interchanger connection, guarantees the equipment room GOOSE information exchange of whole network.
When needing the switch that trips to refuse to jump, the DTU at switch place itself can be refused hop-information be sent to it is adjacent
DTU.The position of the switch of adjacent DTU is in coincidence and receives adjacent side switch and refuses hop-information, then starts adjacent side and refuse to jump Trip Logic,
This switch of tripping.
The present invention is suitable for configuring the distribution network of distribution DTU, builds dual-network, does not interfere with each other.In wherein building
Heart network can realize that three remote signalling of all distribution DTU in ring network cabinet cease and send to distribution main website；GOOSE communication network is built,
Realize that the data interaction between terminal, it can be achieved that the fast and reliable fault location of terminal, and carries out using GOOSE communication mode
Fault Isolation and service restoration.To improve the reliability of power supply, guarantee power grid security.
Claims (8)
1. restoration methods are isolated in a kind of fault diagnosis of distributed data transport unit, which comprises the following steps:
A, a comprehensive control communication unit is configured as unit of ring network cabinet, in each ring network cabinet, it is dry in each ring network cabinet
Line and branch wiretap configure a protection measure and control unit；
B, dual-network is built；Master station communication network is built, realizes in ring network cabinet and passes through main website in the information of all distribution DTU
Communication network is sent to distribution main website；GOOSE network is built, realizes the data interaction between terminal using GOOSE communication mode, it is real
The existing fast and reliable fault location of terminal, and carry out Fault Isolation and service restoration；
C, when distribution network breaks down, each distribution DTU can send the fault message of itself detection in a manner of GOOSE
To adjacent DTU, adjacent side DTU status information that DTU is received according to it and the fault message itself detected carry out synthesis and sentence
It is disconnected, finally determine whether to carry out tripping and closing operation.
2. restoration methods are isolated in the fault diagnosis of distributed data transport unit according to claim 1, it is characterised in that:
In single supply power supply；
Only have the switch of fault zone and adjacent area to detect fault message when an error occurs；
Completely the terminal of all switches carries out GOOSE information exchange, transmits failure detection result, position of the switch information；
Only one region meets " one and only one switch detects failure in region ", therefore positioning the region is faulty section
Domain；
All equal startup separator isolation logics of block switch in the fault zone, block switch tripping；
Confirm in the region after all block switch trippings, starts interconnection switch combined floodgate logic；
Interconnection switch receives GOOSE starting switching signal, and according to own switch unilateral side decompression condition, start-up study combined floodgate is patrolled
Volume；
After interconnection switch receives coincidence, interconnection switch closing success, service restoration.
3. restoration methods are isolated in the fault diagnosis of distributed data transport unit according to claim 1, it is characterised in that:
When more power supply cyclizations are powered, the fault direction that the power direction discriminating element of all distribution DTU detects in region is stream
Enter the fault zone；
Completely the terminal of all switches carries out GOOSE information exchange, transmits failure detection result, position of the switch information；
Only one region meets " fault direction detected in region is to flow into the fault zone ", therefore positions the region and be
Fault zone；
The tripping of all equal startup separator isolation logics of block switch in the fault zone, i.e. block switch；
After block switch whole tripping, all non-faulting block supplies are unaffected, are not necessarily to service restoration.
4. restoration methods are isolated in the fault diagnosis of distributed data transport unit according to claim 1, it is characterised in that:
Master station communication network and the isolation of GOOSE communication network, comprehensive control communication unit are responsible for master station communication.
5. restoration methods are isolated in the fault diagnosis of distributed data transport unit according to claim 1, it is characterised in that:
The information of distributed DTU includes telemetering, remote control, remote signalling information.
6. recovery system is isolated in a kind of fault diagnosis of distributed data transport unit, it is characterised in that: including main website, central network
Network, GOOSE communication network, interchanger, distribution DTU, distributed DTU include comprehensive control communication unit and protection observing and controlling list
Member, interchanger include master station communication interchanger, process layer switch；
Each switch gap of ring network cabinet complete set of equipments configures a protection measure and control unit, and each ring network cabinet configures a synthesis
Telemetry communication unit；Protection measure and control unit is responsible for the observing and controlling function at each interval of ring network cabinet, and distributed DTU only protects observing and controlling list
Member is included in GOOSE communication network；The communication that comprehensive control communication unit is responsible for each interval protection measure and control unit collects and main website is logical
Telecommunication function；An interchanger is configured in each ring network cabinet, using interchanger by distribution DTU groups all in cabinet in consolidated network.
7. recovery system is isolated in the fault diagnosis of distributed data transport unit according to claim 6, it is characterised in that:
Central site network and the isolation of GOOSE communication network, comprehensive control communication unit are responsible for master station communication.
8. recovery system is isolated in the fault diagnosis of distributed data transport unit according to claim 6, it is characterised in that:
The information of distributed DTU includes telemetering, remote control, remote signalling information.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380378A (en) * | 2019-06-12 | 2019-10-25 | 积成电子股份有限公司 | Distributed 10KV power distribution network monitoring and protection system and guard method |
| CN111555458A (en) * | 2020-05-24 | 2020-08-18 | 赫兹曼电力（广东）有限公司 | Distributed feeder automation system of looped network circuit architecture |
| CN113589102A (en) * | 2021-07-31 | 2021-11-02 | 江苏大烨智能电气股份有限公司 | FTU-based broken line fault section positioning method and system |
| CN113872159A (en) * | 2021-08-19 | 2021-12-31 | 北京智芯微电子科技有限公司 | Differential protection method, device, system, processor and distributed DTU equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882195A (en) * | 2012-10-24 | 2013-01-16 | 江苏省电力公司扬州供电公司 | Intelligent longitudinally-interconnected feeder automation system |
| CN104113141A (en) * | 2014-07-30 | 2014-10-22 | 国网电力科学研究院 | Intelligent lengthways interconnected feeder line automatic control method |
| CN204928105U (en) * | 2015-09-02 | 2015-12-30 | 赵容武 | Power distribution terminal device with trip protections function of preventing bypassing immediate leadership |
| CN106711975A (en) * | 2017-03-20 | 2017-05-24 | 中国南方电网有限责任公司 | Method for positioning, isolating and quickly recovering fault on basis of distributed differential protection |
| CN107069676A (en) * | 2016-12-09 | 2017-08-18 | 国家电网公司 | Distribution network failure positions and quickly isolated recovery control method |
| CN107591784A (en) * | 2017-08-23 | 2018-01-16 | 中国南方电网有限责任公司 | A kind of distribution statements based on collusion adaptive incomplete differential protection method of circuit |
| CN109067760A (en) * | 2018-08-27 | 2018-12-21 | 南京南瑞继保电气有限公司 | A kind of distribution DTU device and its method for accessing smart machine |
-
2018
- 2018-12-27 CN CN201811615952.9A patent/CN109687415B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882195A (en) * | 2012-10-24 | 2013-01-16 | 江苏省电力公司扬州供电公司 | Intelligent longitudinally-interconnected feeder automation system |
| CN104113141A (en) * | 2014-07-30 | 2014-10-22 | 国网电力科学研究院 | Intelligent lengthways interconnected feeder line automatic control method |
| CN204928105U (en) * | 2015-09-02 | 2015-12-30 | 赵容武 | Power distribution terminal device with trip protections function of preventing bypassing immediate leadership |
| CN107069676A (en) * | 2016-12-09 | 2017-08-18 | 国家电网公司 | Distribution network failure positions and quickly isolated recovery control method |
| CN106711975A (en) * | 2017-03-20 | 2017-05-24 | 中国南方电网有限责任公司 | Method for positioning, isolating and quickly recovering fault on basis of distributed differential protection |
| CN107591784A (en) * | 2017-08-23 | 2018-01-16 | 中国南方电网有限责任公司 | A kind of distribution statements based on collusion adaptive incomplete differential protection method of circuit |
| CN109067760A (en) * | 2018-08-27 | 2018-12-21 | 南京南瑞继保电气有限公司 | A kind of distribution DTU device and its method for accessing smart machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110380378A (en) * | 2019-06-12 | 2019-10-25 | 积成电子股份有限公司 | Distributed 10KV power distribution network monitoring and protection system and guard method |
| CN110380378B (en) * | 2019-06-12 | 2022-03-08 | 积成电子股份有限公司 | Measurement and control protection method for distributed 10KV power distribution network |
| CN111555458A (en) * | 2020-05-24 | 2020-08-18 | 赫兹曼电力（广东）有限公司 | Distributed feeder automation system of looped network circuit architecture |
| CN113589102A (en) * | 2021-07-31 | 2021-11-02 | 江苏大烨智能电气股份有限公司 | FTU-based broken line fault section positioning method and system |
| CN113872159A (en) * | 2021-08-19 | 2021-12-31 | 北京智芯微电子科技有限公司 | Differential protection method, device, system, processor and distributed DTU equipment |
| CN113872159B (en) * | 2021-08-19 | 2023-01-20 | 北京智芯微电子科技有限公司 | Differential protection method, device, system, processor and distributed DTU equipment |
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|---|---|
| CN109687415B (en) | 2020-08-04 |
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