CH673539A5 - - Google Patents

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Publication number
CH673539A5
CH673539A5 CH340687A CH340687A CH673539A5 CH 673539 A5 CH673539 A5 CH 673539A5 CH 340687 A CH340687 A CH 340687A CH 340687 A CH340687 A CH 340687A CH 673539 A5 CH673539 A5 CH 673539A5
Authority
CH
Switzerland
Prior art keywords
earth
circuit
rotor
relay
current
Prior art date
Application number
CH340687A
Other languages
German (de)
English (en)
Inventor
Andreas Dr Maier
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 CH673539A5 publication Critical patent/CH673539A5/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
    • H02H3/26—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
    • H02H3/33—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 using summation current transformers
    • 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
    • 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
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Protection Of Generators And Motors (AREA)
  • Synchronous Machinery (AREA)
  • Emergency Protection Circuit Devices (AREA)
CH340687A 1986-10-13 1987-09-04 CH673539A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863634802 DE3634802A1 (de) 1986-10-13 1986-10-13 Einrichtung zur selektiven erfassung eines erdschlusses im rotorkreis einer elektrischen maschine

Publications (1)

Publication Number Publication Date
CH673539A5 true CH673539A5 (enrdf_load_stackoverflow) 1990-03-15

Family

ID=6311611

Family Applications (1)

Application Number Title Priority Date Filing Date
CH340687A CH673539A5 (enrdf_load_stackoverflow) 1986-10-13 1987-09-04

Country Status (2)

Country Link
CH (1) CH673539A5 (enrdf_load_stackoverflow)
DE (1) DE3634802A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329381A1 (de) * 1993-09-01 1995-03-02 Abb Management Ag Verfahren zur Erfassung von Erdfehlern auf den Leitern einer elektrischen Maschine
DE4329382A1 (de) * 1993-09-01 1995-03-02 Abb Management Ag Verfahren und Vorrichtung zur Erfassung von Erdfehlern auf den Leitern einer elektrischen Maschine
RU2229726C2 (ru) * 2002-07-05 2004-05-27 Федеральное государственное унитарное предприятие Центральное морское конструкторское бюро "Алмаз" Способ контроля сопротивления изоляции в низковольтных сетях постоянного тока
DE102017119029B4 (de) * 2017-08-21 2021-01-07 Deutronic Elektronik Gmbh Verfahren und Vorrichtung zum Messen elektrotechnischer Maschinen mit unterschiedlichen Parametern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3867657A (en) * 1974-03-29 1975-02-18 Westinghouse Electric Corp Generator having shielded current transformers positioned therein
DE2810013C2 (de) * 1978-03-06 1980-05-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Anordnung zur Isolationsprüfung im Bergbau unter Tage
DE2943725C2 (de) * 1979-10-30 1984-07-19 Brown, Boveri & Cie Ag, 6800 Mannheim Verfahren zur Prüfung einer Fehlerstromschutzeinrichtung mit einem Summenstromwandler und Einrichtungen zur Durchführung des Verfahrens
DE3206598A1 (de) * 1982-02-19 1983-09-01 Siemens AG, 1000 Berlin und 8000 München Anordnung zur messtechnischen erfassung und ueberwachung von unsymmetrien in rotierenden elektrischen induktionsmaschinen

Also Published As

Publication number Publication date
DE3634802A1 (de) 1988-04-21

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Legal Events

Date Code Title Description
PL Patent ceased
PL Patent ceased