IN147177B - - Google Patents

Info

Publication number
IN147177B
IN147177B IN2030/CAL/76A IN2030CA1976A IN147177B IN 147177 B IN147177 B IN 147177B IN 2030CA1976 A IN2030CA1976 A IN 2030CA1976A IN 147177 B IN147177 B IN 147177B
Authority
IN
India
Application number
IN2030/CAL/76A
Other languages
English (en)
Inventor
Anthony Williams
Original Assignee
Gen Electric Co Ltd
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 Gen Electric Co Ltd filed Critical Gen Electric Co Ltd
Publication of IN147177B publication Critical patent/IN147177B/en

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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
    • H02H3/382—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 both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
    • 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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
    • 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
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H02H7/262—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations involving transmissions of switching or blocking orders

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
IN2030/CAL/76A 1975-11-14 1976-11-11 IN147177B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB47083/75A GB1570491A (en) 1975-11-14 1975-11-14 Protective relay arrangements

Publications (1)

Publication Number Publication Date
IN147177B true IN147177B (xx) 1979-12-08

Family

ID=10443657

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2030/CAL/76A IN147177B (xx) 1975-11-14 1976-11-11

Country Status (7)

Country Link
US (1) US4092691A (xx)
AU (1) AU503928B2 (xx)
DE (1) DE2651987A1 (xx)
FR (1) FR2331902A1 (xx)
GB (1) GB1570491A (xx)
IN (1) IN147177B (xx)
SE (1) SE7612605L (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH619570A5 (xx) * 1977-09-30 1980-09-30 Bbc Brown Boveri & Cie
CH623964A5 (xx) * 1977-10-31 1981-06-30 Bbc Brown Boveri & Cie
SE409267B (sv) * 1977-11-28 1979-08-06 Asea Ab Releskydd med funktionsverdesomkoppling
SE409266B (sv) * 1977-11-28 1979-08-06 Asea Ab Releskydd med fasvis sperrfunktion
SE409153B (sv) * 1977-11-28 1979-07-30 Asea Ab Releskydd med trefasutlosning vid underspenning
GB2345810B (en) * 1999-01-13 2003-07-23 Alstom Uk Ltd Fault-detection apparatus
US7969155B2 (en) * 2007-07-03 2011-06-28 Thomas & Betts International, Inc. Directional fault current indicator
EP2697878B1 (de) * 2011-05-06 2017-12-13 Siemens Aktiengesellschaft Verfahren und schutzgerät zum erkennen eines symmetrischen kurzschlusses in einem mehrphasigen elektrischen energieversorgungsnetz

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE418906A (xx) * 1935-12-13
US2845581A (en) * 1955-04-11 1958-07-29 Gen Electric Impedance type electronic relay
GB1090862A (en) * 1964-03-02 1967-11-15 English Electric Co Ltd Electrical protective relays
CH559449A5 (xx) * 1973-05-30 1975-02-28 Bbc Brown Boveri & Cie

Also Published As

Publication number Publication date
SE7612605L (sv) 1977-05-15
AU1953276A (en) 1978-05-18
AU503928B2 (en) 1979-09-27
GB1570491A (en) 1980-07-02
US4092691A (en) 1978-05-30
DE2651987A1 (de) 1977-05-18
FR2331902A1 (fr) 1977-06-10

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