FI67977C - Foerfarande och anordning foer uppnaoende av 100 %-igt statorjordslutningsskydd foer generatorer i blockkoppling - Google Patents

Foerfarande och anordning foer uppnaoende av 100 %-igt statorjordslutningsskydd foer generatorer i blockkoppling Download PDF

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Publication number
FI67977C
FI67977C FI780550A FI780550A FI67977C FI 67977 C FI67977 C FI 67977C FI 780550 A FI780550 A FI 780550A FI 780550 A FI780550 A FI 780550A FI 67977 C FI67977 C FI 67977C
Authority
FI
Finland
Prior art keywords
voltage
bias voltage
phase
multiplier
ground
Prior art date
Application number
FI780550A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI780550A (fi
FI67977B (fi
Inventor
Michael 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 FI780550A publication Critical patent/FI780550A/fi
Application granted granted Critical
Publication of FI67977B publication Critical patent/FI67977B/fi
Publication of FI67977C publication Critical patent/FI67977C/fi

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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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Ac-Ac Conversion (AREA)
  • Protection Of Generators And Motors (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
FI780550A 1977-03-01 1978-02-20 Foerfarande och anordning foer uppnaoende av 100 %-igt statorjordslutningsskydd foer generatorer i blockkoppling FI67977C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH254777A CH615536A5 (en) 1977-03-01 1977-03-01 Method for achieving 100% stator earth fault protection for a generator in unit connection
CH254777 1977-03-01

Publications (3)

Publication Number Publication Date
FI780550A FI780550A (fi) 1978-09-02
FI67977B FI67977B (fi) 1985-02-28
FI67977C true FI67977C (fi) 1985-06-10

Family

ID=4236244

Family Applications (1)

Application Number Title Priority Date Filing Date
FI780550A FI67977C (fi) 1977-03-01 1978-02-20 Foerfarande och anordning foer uppnaoende av 100 %-igt statorjordslutningsskydd foer generatorer i blockkoppling

Country Status (5)

Country Link
CH (1) CH615536A5 (da)
DE (1) DE2712975C2 (da)
FI (1) FI67977C (da)
GB (1) GB1601235A (da)
SE (1) SE424031B (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401442B (de) * 1993-06-18 1996-09-25 Elin Energieversorgung Einrichtung zum schutz der ständerwicklung von einer synchronmaschine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1463574B1 (de) * 1964-01-18 1970-06-04 Siemens Ag Erdschlussschutzeinrichtung fuer galvanisch vom Netz getrennte Wechsel- oder Drehstromsysteme

Also Published As

Publication number Publication date
FI780550A (fi) 1978-09-02
DE2712975A1 (de) 1978-09-07
FI67977B (fi) 1985-02-28
SE7801944L (sv) 1978-09-02
GB1601235A (en) 1981-10-28
CH615536A5 (en) 1980-01-31
DE2712975C2 (de) 1987-01-29
SE424031B (sv) 1982-06-21

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MM Patent lapsed

Owner name: BBC AG BROWN, BOVERI & CIE.