CH570723A5 - - Google Patents

Info

Publication number
CH570723A5
CH570723A5 CH572374A CH572374A CH570723A5 CH 570723 A5 CH570723 A5 CH 570723A5 CH 572374 A CH572374 A CH 572374A CH 572374 A CH572374 A CH 572374A CH 570723 A5 CH570723 A5 CH 570723A5
Authority
CH
Switzerland
Application number
CH572374A
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
Priority to CH572374A priority Critical patent/CH570723A5/xx
Priority to DE19742426871 priority patent/DE2426871B2/de
Publication of CH570723A5 publication Critical patent/CH570723A5/xx

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
    • H02H3/17—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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • G01R27/18—Measuring resistance to earth, i.e. line to ground

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
CH572374A 1974-04-26 1974-04-26 CH570723A5 (cg-RX-API-DMAC7.html)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH572374A CH570723A5 (cg-RX-API-DMAC7.html) 1974-04-26 1974-04-26
DE19742426871 DE2426871B2 (de) 1974-04-26 1974-06-04 Erdschluss-ueberwachungseinrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH572374A CH570723A5 (cg-RX-API-DMAC7.html) 1974-04-26 1974-04-26

Publications (1)

Publication Number Publication Date
CH570723A5 true CH570723A5 (cg-RX-API-DMAC7.html) 1975-12-15

Family

ID=4298282

Family Applications (1)

Application Number Title Priority Date Filing Date
CH572374A CH570723A5 (cg-RX-API-DMAC7.html) 1974-04-26 1974-04-26

Country Status (2)

Country Link
CH (1) CH570723A5 (cg-RX-API-DMAC7.html)
DE (1) DE2426871B2 (cg-RX-API-DMAC7.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112952C2 (de) * 1981-03-31 1994-05-05 Walther Bender Gmbh & Co Kg Di Verfahren und Einrichtung zum Bestimmen der Gesamtableitungsimpedanz in einem ungeerdeten Wechselstromnetz
DE3920177A1 (de) * 1989-06-16 1990-12-20 Licentia Gmbh Verfahren und anordnung zur erdschlusserfassung in nicht geerdeten mehrphasigen versorgungsnetzen, insbesondere hoeherer betriebsspannung
DE4234808A1 (de) * 1992-10-15 1994-04-21 Walther Bender Gmbh & Co Kg Di Verfahren zum Bestimmen der elektrischen Netzableitgrößen in ungeerdeten elektrischen Netzen
AT402770B (de) * 1995-04-25 1997-08-25 Haefely Trench Austria Gmbh Verfahren zum überwachen eines drehstromnetzes auf eine abstimmungsänderung der erdschlusslöschspule

Also Published As

Publication number Publication date
DE2426871A1 (de) 1975-10-30
DE2426871B2 (de) 1977-02-24

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased