NO125608B - - Google Patents

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Publication number
NO125608B
NO125608B NO1704/70A NO170470A NO125608B NO 125608 B NO125608 B NO 125608B NO 1704/70 A NO1704/70 A NO 1704/70A NO 170470 A NO170470 A NO 170470A NO 125608 B NO125608 B NO 125608B
Authority
NO
Norway
Prior art keywords
voltage
circuit
current
secondary winding
proportional
Prior art date
Application number
NO1704/70A
Other languages
English (en)
Norwegian (no)
Inventor
A Helge
T Johansson
Original Assignee
Asea Ab
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 Asea Ab filed Critical Asea Ab
Publication of NO125608B publication Critical patent/NO125608B/no

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
    • H02H3/40—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 ratio of voltage and current

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
NO1704/70A 1969-05-08 1970-05-05 NO125608B (pm)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE06507/69A SE330930B (pm) 1969-05-08 1969-05-08

Publications (1)

Publication Number Publication Date
NO125608B true NO125608B (pm) 1972-10-02

Family

ID=20268860

Family Applications (1)

Application Number Title Priority Date Filing Date
NO1704/70A NO125608B (pm) 1969-05-08 1970-05-05

Country Status (7)

Country Link
US (1) US3629658A (pm)
CH (1) CH530102A (pm)
FR (1) FR2042480B1 (pm)
GB (1) GB1299933A (pm)
NO (1) NO125608B (pm)
SE (1) SE330930B (pm)
YU (1) YU32440B (pm)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH565469A5 (pm) * 1973-06-07 1975-08-15 Bbc Brown Boveri & Cie
SE441138B (sv) * 1984-02-01 1985-09-09 Asea Ab Digitalt impedansrele
SE452534B (sv) * 1986-04-08 1987-11-30 Asea Ab Forfarande och anordning for reckviddsbegrensning och direktutlosning i samband med skydd av en kraftledning

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE685594C (de) * 1933-07-08 1939-12-27 Aeg Schutzrelais fuer elektrische Wechselstromanlagen mit zeitabhaengiger Ausloesung
US2495166A (en) * 1945-12-29 1950-01-17 Westinghouse Electric Corp Distance-type relay with limited directional discrimination
FR1051922A (fr) * 1951-03-28 1954-01-20 Relais à faible impédance pour la protection à distance
US2981867A (en) * 1957-10-25 1961-04-25 Gen Electric Electric relay
FR1347586A (fr) * 1963-02-19 1963-12-27 Bbc Brown Boveri & Cie Dispositif de protection avec montage en pont à redresseurs
GB1192640A (en) * 1967-09-22 1970-05-20 English Electric Co Ltd Improvements in Distance Relays

Also Published As

Publication number Publication date
CH530102A (de) 1972-10-31
FR2042480B1 (pm) 1974-07-12
YU32440B (en) 1974-10-31
FR2042480A1 (pm) 1971-02-12
SE330930B (pm) 1970-12-07
DE2022150A1 (de) 1970-11-19
US3629658A (en) 1971-12-21
GB1299933A (en) 1972-12-13
DE2022150B2 (de) 1973-04-12
YU115170A (en) 1974-04-30

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