LT2005067A - Identification method of short-circuit to earth and place of the same in triphase electrical network - Google Patents
Identification method of short-circuit to earth and place of the same in triphase electrical networkInfo
- Publication number
- LT2005067A LT2005067A LT2005067A LT2005067A LT2005067A LT 2005067 A LT2005067 A LT 2005067A LT 2005067 A LT2005067 A LT 2005067A LT 2005067 A LT2005067 A LT 2005067A LT 2005067 A LT2005067 A LT 2005067A
- Authority
- LT
- Lithuania
- Prior art keywords
- place
- triphase
- short
- circuit
- earth
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention relates to electrical energetics and can be used in triphase electrical distributing network for identification permanent or momentary fault and distance to a fault place. The method is characterized in that recordings are made not longer as 100 Ás and less than 100 ns by time intervals. In that case impact of the noise less than 10kHz is reduced. Distance from first end of section of feeding line to short - circuit to earth place is identified by minimizing objective function f2, which is difference function between registered and emulative process.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LT2005067A LT5337B (en) | 2005-07-20 | 2005-07-20 | Identification method of short-circuit to earth and place of the same in triphase electrical network |
RU2008105543/28A RU2008105543A (en) | 2005-07-20 | 2006-07-18 | METHOD FOR DETECTING AND INSTALLING THE LOCATION OF THE CLOSING TO EARTH IN A THREE-PHASE ELECTRIC CIRCUIT |
EP06769357A EP1904862A1 (en) | 2005-07-20 | 2006-07-18 | A method of earth fault identification and location in three-phase electrical network |
PCT/LT2006/000006 WO2007011196A1 (en) | 2005-07-20 | 2006-07-18 | A method of earth fault identification and location in three-phase electrical network |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LT2005067A LT5337B (en) | 2005-07-20 | 2005-07-20 | Identification method of short-circuit to earth and place of the same in triphase electrical network |
Publications (2)
Publication Number | Publication Date |
---|---|
LT2005067A true LT2005067A (en) | 2006-02-27 |
LT5337B LT5337B (en) | 2006-04-25 |
Family
ID=36778359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
LT2005067A LT5337B (en) | 2005-07-20 | 2005-07-20 | Identification method of short-circuit to earth and place of the same in triphase electrical network |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1904862A1 (en) |
LT (1) | LT5337B (en) |
RU (1) | RU2008105543A (en) |
WO (1) | WO2007011196A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111796212A (en) * | 2020-08-27 | 2020-10-20 | 广东电网有限责任公司电力调度控制中心 | Single-phase earth fault phase selection method, system and equipment for low-current earth system |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101534001B (en) * | 2008-03-11 | 2011-11-23 | 杨万钟 | Method for detecting distribution network short circuit fault and restoring power supply in non-broken-down section |
CN101943737B (en) * | 2010-08-04 | 2012-10-24 | 清华大学 | Single-phase earth fault diagnosis method and device |
CN103201921B (en) | 2010-11-10 | 2016-01-06 | Abb研究有限公司 | Fault interrupting devices and control method thereof |
CN102279346B (en) * | 2011-04-14 | 2013-04-03 | 长沙理工大学 | Fault line selection method of low current grounding system |
CN102590700B (en) * | 2011-12-23 | 2015-09-30 | 国家电网公司 | Based on pole line fast fault locating method and the device of time synchronized |
CN105866622B (en) * | 2016-03-30 | 2018-10-16 | 国网福建省电力有限公司 | Two ends of electric transmission line fault distance-finding method is realized using zero-sequence component |
CN105759179B (en) * | 2016-04-28 | 2019-08-16 | 四川瑞霆电力科技有限公司 | Based on zero sequence transient analysis low current neutral grounding system fault positioning system and method |
US10223906B2 (en) | 2017-01-23 | 2019-03-05 | Florida Power & Light Company | Open neutral detection |
CN109034576B (en) * | 2018-07-13 | 2021-11-16 | 贵州电网有限责任公司 | Correlation analysis method for failure cause and service influence of power communication network |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE410925B (en) * | 1978-04-06 | 1979-11-12 | Asea Ab | DIRECTED GUARD DETECTOR |
SU1698849A1 (en) | 1988-05-11 | 1991-12-15 | Научно-исследовательский, проектно-конструкторский и технологический институт высоковольтного аппаратостроения Ленинградского производственного объединения "Электроаппарат" | Method for determining defective places in high-voltage insulating cover |
SU1698848A1 (en) | 1990-01-08 | 1991-12-15 | Псковский филиал Ленинградского политехнического института им.М.И.Калинина | Method of determining a distance to a partial ground location of electrical network with insulated neutral |
SU1762279A1 (en) | 1991-01-21 | 1992-09-15 | Серпуховское высшее военное командно-инженерное училище ракетных войск им.Ленинского комсомола | Cable fault locator for electric power transmission lines |
-
2005
- 2005-07-20 LT LT2005067A patent/LT5337B/en not_active IP Right Cessation
-
2006
- 2006-07-18 EP EP06769357A patent/EP1904862A1/en not_active Withdrawn
- 2006-07-18 WO PCT/LT2006/000006 patent/WO2007011196A1/en active Application Filing
- 2006-07-18 RU RU2008105543/28A patent/RU2008105543A/en not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111796212A (en) * | 2020-08-27 | 2020-10-20 | 广东电网有限责任公司电力调度控制中心 | Single-phase earth fault phase selection method, system and equipment for low-current earth system |
CN111796212B (en) * | 2020-08-27 | 2022-08-02 | 广东电网有限责任公司电力调度控制中心 | Single-phase earth fault phase selection method, system and equipment for low-current earth system |
Also Published As
Publication number | Publication date |
---|---|
WO2007011196B1 (en) | 2007-03-29 |
RU2008105543A (en) | 2009-08-27 |
EP1904862A1 (en) | 2008-04-02 |
WO2007011196A1 (en) | 2007-01-25 |
LT5337B (en) | 2006-04-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
QB9A | Licensing |
Owner name: UAB "EPREGAS", LT Effective date: 20070214 |
|
PC9A | Transfer of patents |
Owner name: UAB "EPREGAS", LT Effective date: 20080714 |
|
MM9A | Lapsed patents |
Effective date: 20090720 |