CH625918A5 - - Google Patents

Download PDF

Info

Publication number
CH625918A5
CH625918A5 CH131878A CH131878A CH625918A5 CH 625918 A5 CH625918 A5 CH 625918A5 CH 131878 A CH131878 A CH 131878A CH 131878 A CH131878 A CH 131878A CH 625918 A5 CH625918 A5 CH 625918A5
Authority
CH
Switzerland
Prior art keywords
voltage
earth
circuit
circuit arrangement
converter
Prior art date
Application number
CH131878A
Other languages
German (de)
English (en)
Inventor
Hans Laber
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of CH625918A5 publication Critical patent/CH625918A5/de

Links

Classifications

    • 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
    • H02H3/162—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 for ac systems
    • H02H3/165—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 for ac systems for three-phase 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
    • H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/34—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
    • H02H3/353—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system involving comparison of phase voltages

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Protection Of Static Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
CH131878A 1977-04-14 1978-02-07 CH625918A5 (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2716605A DE2716605C2 (de) 1977-04-14 1977-04-14 Schaltungsanordnung zur ErdschluBerfassung bei einem Stromrichter

Publications (1)

Publication Number Publication Date
CH625918A5 true CH625918A5 (nl) 1981-10-15

Family

ID=6006306

Family Applications (1)

Application Number Title Priority Date Filing Date
CH131878A CH625918A5 (nl) 1977-04-14 1978-02-07

Country Status (10)

Country Link
US (1) US4198628A (nl)
JP (1) JPS53128739A (nl)
AT (1) AT363546B (nl)
BE (1) BE865868A (nl)
CA (1) CA1099341A (nl)
CH (1) CH625918A5 (nl)
DE (1) DE2716605C2 (nl)
FR (1) FR2387542A1 (nl)
GB (1) GB1599935A (nl)
SE (1) SE421976B (nl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2908374C2 (de) * 1979-03-03 1984-10-31 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung und Anordnung zur Erd-Schlußerfassung in einem Gleichrichtergerät
FR2458165A1 (fr) * 1979-05-31 1980-12-26 Merlin Gerin Dispositif de protection contre les defauts de mise a la terre d'une alimentation a convertisseur statique
US4496940A (en) * 1982-01-15 1985-01-29 Pall Corporation Sensing and indicator system for detecting heating element failures
DE10148740B4 (de) * 2001-09-27 2013-10-24 Dr. Johannes Heidenhain Gmbh Verfahren zur Erdschlussüberwachung eines Stromrichterantriebs
US8841917B2 (en) * 2011-03-31 2014-09-23 Rockwell Automation Technologies, Inc. Ground scheme identification method
CN111796203B (zh) * 2020-06-03 2022-08-26 深圳蓄能发电有限公司 一种静止变频器网桥侧单相接地故障的识别方法及装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1270894A (en) * 1917-09-17 1918-07-02 Gen Electric Protective device.
US2428563A (en) * 1943-04-23 1947-10-07 Westinghouse Electric Corp Ground detector for electric power distribution systems
GB1020863A (en) * 1961-03-27 1966-02-23 Reyrolle A & Co Ltd Improvements relating to protective systems
US3293497A (en) * 1962-04-03 1966-12-20 Abraham B Brandler Ground fault detector
US3852641A (en) * 1973-02-05 1974-12-03 Gen Electric Protective system for mobile electric power apparatus
FR2299750A1 (fr) * 1975-01-31 1976-08-27 Vitte Jacky Dispositif de securite pour la

Also Published As

Publication number Publication date
SE421976B (sv) 1982-02-08
DE2716605C2 (de) 1979-02-01
SE7803320L (sv) 1978-10-15
DE2716605B1 (de) 1978-06-08
US4198628A (en) 1980-04-15
GB1599935A (en) 1981-10-07
AT363546B (de) 1981-08-10
FR2387542A1 (fr) 1978-11-10
CA1099341A (en) 1981-04-14
ATA152978A (de) 1981-01-15
JPS53128739A (en) 1978-11-10
BE865868A (fr) 1978-07-31

Similar Documents

Publication Publication Date Title
DE2439587B2 (de) Vorrichtung für die Elektrochirurgie
EP0022992A1 (de) Überwachungseinrichtung für die Kondensatorbatterie eines Gleichstromfilterkreises
DE2825881C2 (de) Anordnung zur Betriebsspannungsversorgung einer Fehlerstrom-Schutzschaltungsanordnung
CH386558A (de) Vielfachmessgerät
DE102019127579B3 (de) Überwachungsvorrichtung für Ableitströme
CH625918A5 (nl)
DE2653453C3 (de) Schaltungsanordnung für eine aus der Netzspannung über Gleichrichterelemente abgeleitete Hilfsspannung für mehrpolige Fehlerstrom-Schutzschalter
DE69113334T2 (de) Fehlerstromschutzsystem.
EP1322018B1 (de) Differenzstrom-Schutzeinrichtung
DE941000C (de) Elektrische Pruefstromkreisanordnung mit einem an jedem Ende von einer Spannungsquelle gespeisten Leitungspaar, insbesondere fuer den Vergleichsschutz elektrischer Leitungsstrecken
DE69308446T2 (de) Einrichtung zum Feststellen von Fehlern auf einem unterirdischen elektrischen Energieverteilungsnetz
DE2702666C3 (de) Schaltungsanordnung zur Überwachung der Phasenströme in Mehrphasennetzen
DE1257960B (de) Schaltung zur Messung der Netz-Innenimpedanz
DE458137C (de) Schutzvorrichtung fuer elektrische Maschinen und Apparate gegen Erdschluss
DE102021118233A1 (de) Vorrichtung zur Erzeugung eines Kompensationsstroms
DE948803C (de) Schutzschaltung fuer Wechselstrom-Lichtbogen-Schweissgeraete mit einer vormagnetisierten Drossel im Sekundaerkreis
DE1081118B (de) Einrichtung zum Schutz von elektrischen Energieleitungen
DE2532206A1 (de) Schaltungsanordnung zur abschaltung eines drehstromverbrauchers bei unsymmetrischer leistungsaufnahme
DE604359C (nl)
DE2526677C3 (de) Kondensatoranordnung zur Beeinflussung des Blindstromes in elektrischen Wechselspannungsnetzen
DE3132800C2 (de) Strommeßgerät mit magnetischer Verstärkung
DE3815824A1 (de) Schaltungsanordnung zur erzeugung mindestens einer stromproportionalen spannung mit mindestens einem shunt
DE3810792C2 (nl)
DE2210863C3 (de) Sicherheits-Regelschaltung
DE1763564A1 (de) Stabilisierte Differentialschutzeinrichtung

Legal Events

Date Code Title Description
PL Patent ceased