SE440841B - Forfarande och anordning for detektering av jordslutningar, elektriska anordningar i ett elektriskt net - Google Patents

Forfarande och anordning for detektering av jordslutningar, elektriska anordningar i ett elektriskt net

Info

Publication number
SE440841B
SE440841B SE7802157A SE7802157A SE440841B SE 440841 B SE440841 B SE 440841B SE 7802157 A SE7802157 A SE 7802157A SE 7802157 A SE7802157 A SE 7802157A SE 440841 B SE440841 B SE 440841B
Authority
SE
Sweden
Prior art keywords
voltage
signal
phase
switching
multiplier
Prior art date
Application number
SE7802157A
Other languages
English (en)
Swedish (sv)
Other versions
SE7802157L (sv
Inventor
M Fiorentzis
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of SE7802157L publication Critical patent/SE7802157L/xx
Publication of SE440841B publication Critical patent/SE440841B/sv

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
    • H02H7/06—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 for dynamo-electric generators; for synchronous capacitors
    • H02H7/062—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 for dynamo-electric generators; for synchronous capacitors for parallel connected generators
    • 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
    • H02H3/16—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 responsive to fault current to earth, frame or mass
    • H02H3/17—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 responsive to fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
SE7802157A 1977-03-01 1978-02-24 Forfarande och anordning for detektering av jordslutningar, elektriska anordningar i ett elektriskt net SE440841B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH254977A CH615537A5 (de) 1977-03-01 1977-03-01

Publications (2)

Publication Number Publication Date
SE7802157L SE7802157L (sv) 1978-09-02
SE440841B true SE440841B (sv) 1985-08-19

Family

ID=4236288

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7802157A SE440841B (sv) 1977-03-01 1978-02-24 Forfarande och anordning for detektering av jordslutningar, elektriska anordningar i ett elektriskt net

Country Status (5)

Country Link
US (1) US4149208A (de)
CH (1) CH615537A5 (de)
DE (1) DE2713231A1 (de)
GB (1) GB1601237A (de)
SE (1) SE440841B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH613569A5 (de) * 1977-03-01 1979-09-28 Bbc Brown Boveri & Cie
US4771355A (en) * 1986-12-29 1988-09-13 Electric Power Research Institute, Inc. System and method for arc detection in dynamoelectric machines
DE3806827A1 (de) * 1988-03-03 1989-09-14 Licentia Gmbh Verfahren zur erfassung und begrenzung eines erdschlussstromes
US6304089B1 (en) 1998-10-26 2001-10-16 Garry E. Paulson Parallel termination apparatus and method for ground-check monitors
US6249230B1 (en) * 1999-03-18 2001-06-19 Abb Power T&D Company Inc. Ground fault location system and ground fault detector therefor
US20040070281A1 (en) * 2002-10-15 2004-04-15 Carolina Tractor & Equipment Company Method and apparatus for isolating a cogeneration system from a utility source
EP2342574B1 (de) * 2008-10-27 2013-07-31 Siemens Aktiengesellschaft Fehlerortung in elektrischen energieversorgungsnetzen nach dem distanzschutzprinzip
ES2533797T3 (es) * 2010-07-19 2015-04-14 Abb Technology Ag Dispositivo y método para la detección de una falla a tierra
CN102332685B (zh) * 2011-08-13 2014-12-10 陈劲游 一种防铁磁谐振自供电的三相四线电子式互感器高压电能计量柜或计量箱
CN102332684B (zh) * 2011-08-13 2014-12-03 陈劲游 一种防铁磁谐振自供电的2pt三相三线电子式互感器高压电能计量柜或计量箱

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB838513A (en) 1956-05-01 1960-06-22 Vickers Electrical Co Ltd Improvements in and relating to earth leakage protection systems for electrical circuits
DE1059095B (de) * 1958-08-07 1959-06-11 Licentia Gmbh Schutzschaltung fuer Leitungen ortsveraenderlicher Stromverbraucher
DE1463574B1 (de) * 1964-01-18 1970-06-04 Siemens Ag Erdschlussschutzeinrichtung fuer galvanisch vom Netz getrennte Wechsel- oder Drehstromsysteme
CH446499A (de) * 1965-01-30 1967-11-15 Siemens Ag Erdschlussschutzeinrichtung in einem Ein- oder Mehrphasensystem
US3978465A (en) * 1974-10-25 1976-08-31 Esb Incorporated Line isolation monitor
SU543076A1 (ru) * 1975-01-17 1977-01-15 Устройство дл защитного отключени в сети с изолирванной нейтралью
US4106071A (en) * 1977-01-06 1978-08-08 Westinghouse Electric Corp. Apparatus for protection against subsynchronous currents in a power system

Also Published As

Publication number Publication date
GB1601237A (en) 1981-10-28
SE7802157L (sv) 1978-09-02
CH615537A5 (de) 1980-01-31
US4149208A (en) 1979-04-10
DE2713231A1 (de) 1978-09-07

Similar Documents

Publication Publication Date Title
US4224652A (en) Method and apparatus for detecting ground shorts in the rotor circuit of a generator
SE440841B (sv) Forfarande och anordning for detektering av jordslutningar, elektriska anordningar i ett elektriskt net
JPH0783984A (ja) 電気機器の導体の接地事故検出方法
EP1933440A2 (de) Erdfehlerschutz eines Frequenzumrichters
US1278508A (en) Radiotelegraph transmitting system.
JP2992615B2 (ja) 非接地系電路の線路定数計測装置及び地絡監視装置
JPH04222417A (ja) 差動電流保護回路
RU2631121C2 (ru) Способ селективного определения отходящей линии с однофазным замыканием на землю в распределительных сетях напряжением 6-35 кВ
JP2009128114A (ja) 通電情報計測装置
CA2435367C (en) Device and method for protection against overcurrents in an electrical energy distribution cabinet
Albrechtowicz et al. The analysis of the effectiveness of standard protection devices in supply systems fed from synchronous generator sets
US3119049A (en) Protection device for electric networks
US880565A (en) Fault-locating apparatus.
GB1571802A (en) Fault location in electric distribution cables
SU1481695A1 (ru) Способ вы влени места замыкани на землю в трехфазных электрических сет х с изолированной нейтралью
FI67977B (fi) Foerfarande och anordning foer uppnaoende av 100 %-igt statorjordslutningsskydd foer generatorer i blockkoppling
RU1812506C (ru) Способ измерени тока однофазного замыкани на землю в сети с изолированной нейтралью
RU2052826C1 (ru) Устройство для поиска поврежденного участка в сетях постоянного и переменного тока
SU1432422A1 (ru) Устройство дл измерени активного сопротивлени изол ции в сет х с заземленной нейтралью
SU733058A1 (ru) Устройство дл учета замыканий на землю по фазам в сети с незаземленной нейтралью
SU659992A1 (ru) Устройство дл измерени сопротивлени изол ции в сет х с глухозаземленной нейтралью
SU650151A1 (ru) Способ защиты от замыкани на землю в одной точке цепи возбуждени синхронной машины
RU2263324C2 (ru) Устройство испытаний на исправность электротехнических элементов и способ испытаний на исправность электротехнических элементов
SU760295A1 (ru) Устройство для компенсации тока однофазного замыкания на землю1
SU65636A1 (ru) Способ определени сопротивлени изол ции трехфазных электрических сетей переменного тока с изолированной нейтралью

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 7802157-3

Effective date: 19880125

Format of ref document f/p: F