CH600644A5 - - Google Patents
Info
- Publication number
- CH600644A5 CH600644A5 CH797975A CH797975A CH600644A5 CH 600644 A5 CH600644 A5 CH 600644A5 CH 797975 A CH797975 A CH 797975A CH 797975 A CH797975 A CH 797975A CH 600644 A5 CH600644 A5 CH 600644A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- 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
- H02H7/265—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 making use of travelling wave theory
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Locating Faults (AREA)
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH797975A CH600644A5 (US07541385-20090602-C00001.png) | 1975-06-19 | 1975-06-19 | |
| DE19752531203 DE2531203C3 (de) | 1975-06-19 | 1975-07-12 | Verfahren und Einrichtung zur Detektion von Kurzschlüssen auf Leitungen |
| JP51068646A JPS5953778B2 (ja) | 1975-06-19 | 1976-06-11 | 交流線路における短絡の検出方法および装置 |
| SE7606658A SE405645B (sv) | 1975-06-19 | 1976-06-11 | Forfarande och anordning for detektering av kortslutningar pa ledningar |
| US05/696,140 US4063164A (en) | 1975-06-19 | 1976-06-14 | Method and apparatus for detection of short circuits by phase monitoring traveling wave signals |
| CA255,097A CA1056910A (en) | 1975-06-19 | 1976-06-17 | Method and apparatus for detection of short-circuits |
| GB25478/76A GB1555965A (en) | 1975-06-19 | 1976-06-18 | Method of and apparatus for detecting short-circuits on electrical transmission lines |
| FR7618630A FR2316772A1 (fr) | 1975-06-19 | 1976-06-18 | Procede et dispositif pour la detection de courts-circuits sur des lignes electriques |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH797975A CH600644A5 (US07541385-20090602-C00001.png) | 1975-06-19 | 1975-06-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH600644A5 true CH600644A5 (US07541385-20090602-C00001.png) | 1978-06-30 |
Family
ID=4333291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH797975A CH600644A5 (US07541385-20090602-C00001.png) | 1975-06-19 | 1975-06-19 |
Country Status (7)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH611467A5 (US07541385-20090602-C00001.png) * | 1976-09-30 | 1979-05-31 | Bbc Brown Boveri & Cie | |
| FR2494853A1 (fr) * | 1980-11-25 | 1982-05-28 | Enertec | Procede pour determiner la direction de l'origine d'une perturbation affectant un element d'un reseau de transport d'energie electrique |
| DE3271054D1 (en) * | 1982-01-15 | 1986-06-12 | Bbc Brown Boveri & Cie | Method of fault detection in a conductor of an interconnection network |
| FR2547419B1 (fr) * | 1983-06-09 | 1985-07-26 | Enertec | Procede et dispositif de determination d'un parametre associe a une ligne electrique en defaut, utilisant un signal pilote composite. |
| US4667152A (en) * | 1985-10-17 | 1987-05-19 | Hayes Raymond M | Method of and system for determining locations of sources of harmonics in a power distribution network |
| US4851782A (en) * | 1987-01-15 | 1989-07-25 | Jeerings Donald I | High impedance fault analyzer in electric power distribution |
| US5138265A (en) * | 1988-11-30 | 1992-08-11 | Sumitomo Electric Industries, Ltd. | Apparatus and system for locating thunderstruck point and faulty point of transmission line |
| CN102087332B (zh) * | 2010-12-20 | 2012-10-31 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 一种基于波速寻优的直流行波故障测距方法 |
| WO2017049224A1 (en) * | 2015-09-18 | 2017-03-23 | Schweitzer Engineering Laboratories, Inc. | Time-domain line protection of electric power delivery systems |
| WO2017066205A1 (en) * | 2015-10-12 | 2017-04-20 | Schweitzer Engineering Laboratories, Inc. | Traveling wave directional element |
| CN109154630B (zh) * | 2016-06-13 | 2021-01-29 | 施瓦哲工程实验有限公司 | 在时域中的过电流元件 |
| US10677834B2 (en) | 2018-09-14 | 2020-06-09 | Schweitzer Engineering Laboratories, Inc. | Distance protection of electric power delivery systems using time domain and frequency domain |
| US10641815B2 (en) | 2018-09-27 | 2020-05-05 | Schweitzer Engineering Laboratories, Inc. | Secure distance protection of electric power delivery systems under transient conditions |
| US11735907B2 (en) | 2021-02-03 | 2023-08-22 | Schweitzer Engineering Laboratories, Inc. | Traveling wave overcurrent protection for electric power delivery systems |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3048744A (en) * | 1953-08-25 | 1962-08-07 | English Electric Co Ltd | Electrical protective relay systems |
| GB871957A (en) * | 1957-01-23 | 1961-07-05 | English Electric Co Ltd | Improvements in and relating to electrical protective relay systems |
| GB1096412A (en) * | 1964-04-28 | 1967-12-29 | English Electric Co Ltd | Electrical protective relays |
| DE1302257C2 (de) * | 1964-06-19 | 1973-01-25 | Hartmann & Braun Ag | Messchaltungsanordnung fuer elektronische relais |
| FR1560518A (US07541385-20090602-C00001.png) * | 1968-01-24 | 1969-03-21 | ||
| FR1566498A (US07541385-20090602-C00001.png) * | 1968-03-11 | 1969-05-09 | ||
| FR2058166A1 (US07541385-20090602-C00001.png) * | 1969-08-11 | 1971-05-28 | Compteurs Comp D | |
| FR2160306B1 (US07541385-20090602-C00001.png) * | 1971-11-19 | 1974-05-10 | Schlumberger Compteurs | |
| FR2203080B1 (US07541385-20090602-C00001.png) * | 1972-10-17 | 1977-08-26 | Ice | |
| GB1422346A (US07541385-20090602-C00001.png) * | 1972-11-28 | 1976-01-28 | ||
| SE375886B (US07541385-20090602-C00001.png) * | 1973-08-22 | 1975-04-28 | Asea Ab | |
| CH610154A5 (US07541385-20090602-C00001.png) * | 1975-04-28 | 1979-03-30 | Bbc Brown Boveri & Cie |
-
1975
- 1975-06-19 CH CH797975A patent/CH600644A5/xx not_active IP Right Cessation
-
1976
- 1976-06-11 SE SE7606658A patent/SE405645B/xx not_active IP Right Cessation
- 1976-06-11 JP JP51068646A patent/JPS5953778B2/ja not_active Expired
- 1976-06-14 US US05/696,140 patent/US4063164A/en not_active Expired - Lifetime
- 1976-06-17 CA CA255,097A patent/CA1056910A/en not_active Expired
- 1976-06-18 FR FR7618630A patent/FR2316772A1/fr not_active Withdrawn
- 1976-06-18 GB GB25478/76A patent/GB1555965A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5953778B2 (ja) | 1984-12-26 |
| FR2316772A1 (fr) | 1977-01-28 |
| SE7606658L (sv) | 1976-12-20 |
| US4063164A (en) | 1977-12-13 |
| GB1555965A (en) | 1979-11-14 |
| DE2531203B2 (de) | 1977-04-07 |
| JPS5221634A (en) | 1977-02-18 |
| CA1056910A (en) | 1979-06-19 |
| SE405645B (sv) | 1978-12-18 |
| DE2531203A1 (de) | 1976-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |