SE7606658L - Sett och anordning for detektering av kortslutningar pa ledningar - Google Patents
Sett och anordning for detektering av kortslutningar pa ledningarInfo
- Publication number
- SE7606658L SE7606658L SE7606658A SE7606658A SE7606658L SE 7606658 L SE7606658 L SE 7606658L SE 7606658 A SE7606658 A SE 7606658A SE 7606658 A SE7606658 A SE 7606658A SE 7606658 L SE7606658 L SE 7606658L
- Authority
- SE
- Sweden
- Prior art keywords
- measurement
- wires
- short circuits
- detecting short
- voltages
- Prior art date
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH797975A CH600644A5 ( ) | 1975-06-19 | 1975-06-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7606658L true SE7606658L (sv) | 1976-12-20 |
SE405645B SE405645B (sv) | 1978-12-18 |
Family
ID=4333291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7606658A SE405645B (sv) | 1975-06-19 | 1976-06-11 | Forfarande och anordning for detektering av kortslutningar pa ledningar |
Country Status (7)
Country | Link |
---|---|
US (1) | US4063164A ( ) |
JP (1) | JPS5953778B2 ( ) |
CA (1) | CA1056910A ( ) |
CH (1) | CH600644A5 ( ) |
FR (1) | FR2316772A1 ( ) |
GB (1) | GB1555965A ( ) |
SE (1) | SE405645B ( ) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH611467A5 ( ) * | 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 |
US10310004B2 (en) * | 2015-09-18 | 2019-06-04 | Schweitzer Engineering Laboratories, Inc. | Time-domain differential 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 |
GB1096413A (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 ( ) * | 1968-01-24 | 1969-03-21 | ||
FR1566498A ( ) * | 1968-03-11 | 1969-05-09 | ||
FR2058166A1 ( ) * | 1969-08-11 | 1971-05-28 | Compteurs Comp D | |
FR2160306B1 ( ) * | 1971-11-19 | 1974-05-10 | Schlumberger Compteurs | |
FR2203080B1 ( ) * | 1972-10-17 | 1977-08-26 | Ice | |
GB1422346A ( ) * | 1972-11-28 | 1976-01-28 | ||
SE375886B ( ) * | 1973-08-22 | 1975-04-28 | Asea Ab | |
CH610154A5 ( ) * | 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 JP JP51068646A patent/JPS5953778B2/ja not_active Expired
- 1976-06-11 SE SE7606658A patent/SE405645B/xx not_active IP Right Cessation
- 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 GB GB25478/76A patent/GB1555965A/en not_active Expired
- 1976-06-18 FR FR7618630A patent/FR2316772A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JPS5953778B2 (ja) | 1984-12-26 |
FR2316772A1 (fr) | 1977-01-28 |
CH600644A5 ( ) | 1978-06-30 |
SE405645B (sv) | 1978-12-18 |
CA1056910A (en) | 1979-06-19 |
JPS5221634A (en) | 1977-02-18 |
DE2531203A1 (de) | 1976-12-23 |
DE2531203B2 (de) | 1977-04-07 |
US4063164A (en) | 1977-12-13 |
GB1555965A (en) | 1979-11-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE7606658L (sv) | Sett och anordning for detektering av kortslutningar pa ledningar | |
NL7608932A (nl) | Detectieschakeling voor het detecteren van zwakke signalen. | |
SE7602786L (sv) | Sett och anordning for fellokalisering pa en ledning | |
NL184820C (nl) | Scheidingsinrichting voor elektrische signalen. | |
SE399131B (sv) | Forfarande och anordning for bestamning av punkten for fel pa en elektrisk ledning | |
SE7700298L (sv) | Forfarande och anordning for kommunicering over kraftledningar | |
ES485464A1 (es) | Perfeccionamientos en dispositivos de comprobacion para in- dicar una tension electrica y- su polaridad. | |
NL173331C (nl) | Inrichting voor het meten van de grootte van een elektrische stroom door een meetstroomgeleider, die galvanisch is gescheiden van het meetcircuit. | |
NL7610643A (nl) | Inrichting voor het meten van electrische stroom. | |
SE412468B (sv) | Virvelstromprovningsanordning | |
IT1062400B (it) | Apparecchio per la rivelazione di veicoli | |
NO153782C (no) | Fremgangsmaate og apparat for maaling av resistiviteten av fluider i et borehull. | |
NL7808039A (nl) | Schakeling voor detectie van een uit onbalans resul- terende gelijkspanning. | |
NL7408033A (nl) | Schakeling voor het meten van de effektieve waarde van een elektrisch signaal. | |
JPS5271070A (en) | Apparatus for detecting elongation of conveyor | |
NL7605135A (nl) | Inrichting voor het meten van elektrische stromen. | |
JPS5229789A (en) | Apparatus for derection, identification and indication of surface defe cts of travelling sheet-form objects | |
JPS5210094A (en) | Method of eliminating disturbance by reflection from sea surface | |
JPS5240754A (en) | One phase omission detector for three phase alternating current | |
FR2335887A1 (fr) | Circuit de detection pour regulateur de tension | |
CH503281A (de) | Elektrische Servo-Einrichtung zur Prüfung eines Wechselspannungssignales | |
JPS5240172A (en) | Mean value detection circuit | |
IT1047375B (it) | Dispositivo di rilevamento di anomalie in circuiti elettrici..in particolare di lunotti termici di autoveicoli | |
JPS5449691A (en) | Means for detecting the contact between tool and work | |
JPS5372101A (en) | Dielectric strength tester for electric machinery |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7606658-8 Effective date: 19910131 Format of ref document f/p: F |