SE409153B - Releskydd med trefasutlosning vid underspenning - Google Patents

Releskydd med trefasutlosning vid underspenning

Info

Publication number
SE409153B
SE409153B SE7713409A SE7713409A SE409153B SE 409153 B SE409153 B SE 409153B SE 7713409 A SE7713409 A SE 7713409A SE 7713409 A SE7713409 A SE 7713409A SE 409153 B SE409153 B SE 409153B
Authority
SE
Sweden
Prior art keywords
phase
inputs
input
outputs
signal
Prior art date
Application number
SE7713409A
Other languages
English (en)
Swedish (sv)
Other versions
SE7713409L (sv
Inventor
L Eriksson
S Liberman
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
Priority to SE7713409A priority Critical patent/SE409153B/sv
Priority to CH1134078A priority patent/CH641917A5/de
Priority to FR7832359A priority patent/FR2410386A1/fr
Priority to DE19782850412 priority patent/DE2850412A1/de
Priority to CA000316903A priority patent/CA1117585A/en
Priority to GB7846161A priority patent/GB2011740B/en
Priority to IT69708/78A priority patent/IT1160971B/it
Publication of SE7713409L publication Critical patent/SE7713409L/
Priority to US06/044,563 priority patent/US4254444A/en
Publication of SE409153B publication Critical patent/SE409153B/sv

Links

Classifications

    • 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
    • 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
    • H02H7/265—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 making use of travelling wave theory

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Emergency Protection Circuit Devices (AREA)
SE7713409A 1977-11-28 1977-11-28 Releskydd med trefasutlosning vid underspenning SE409153B (sv)

Priority Applications (8)

Application Number Priority Date Filing Date Title
SE7713409A SE409153B (sv) 1977-11-28 1977-11-28 Releskydd med trefasutlosning vid underspenning
CH1134078A CH641917A5 (de) 1977-11-28 1978-11-03 Relaisschutzanordnung fuer ein elektrisches leitungsnetz.
FR7832359A FR2410386A1 (fr) 1977-11-28 1978-11-16 Protection a relais avec declenchement triphase en cas de sous-tension
DE19782850412 DE2850412A1 (de) 1977-11-28 1978-11-21 Relaisschutzanordnung fuer anlagenteile elektrischer netze
CA000316903A CA1117585A (en) 1977-11-28 1978-11-27 Relay protection with three-phase tripping at undervoltage
GB7846161A GB2011740B (en) 1977-11-28 1978-11-27 Protection device for electrical power supply networks
IT69708/78A IT1160971B (it) 1977-11-28 1978-11-27 Dispositivo di protezione a rele' con sgancio trifase a seguito di sottovoltaggio
US06/044,563 US4254444A (en) 1977-11-28 1979-06-01 Multiphase undervoltage tripping circuitry for electrical power supply networks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7713409A SE409153B (sv) 1977-11-28 1977-11-28 Releskydd med trefasutlosning vid underspenning

Publications (2)

Publication Number Publication Date
SE7713409L SE7713409L (sv) 1979-05-29
SE409153B true SE409153B (sv) 1979-07-30

Family

ID=20333009

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7713409A SE409153B (sv) 1977-11-28 1977-11-28 Releskydd med trefasutlosning vid underspenning

Country Status (8)

Country Link
US (1) US4254444A (de)
CA (1) CA1117585A (de)
CH (1) CH641917A5 (de)
DE (1) DE2850412A1 (de)
FR (1) FR2410386A1 (de)
GB (1) GB2011740B (de)
IT (1) IT1160971B (de)
SE (1) SE409153B (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825323A (en) * 1987-11-12 1989-04-25 General Electric Company Out-of-step blocking unit
US5838525A (en) * 1997-04-15 1998-11-17 Abb Power T&D Company, Inc. High speed single-pole trip logic for use in protective relaying
GB2388482B (en) * 2002-05-07 2005-06-15 Alstom Improved power line protection
WO2013056144A1 (en) 2011-10-12 2013-04-18 Schweitzer Engineering Laboratories, Inc. Fault location using traveling waves
US9588168B2 (en) 2013-09-16 2017-03-07 Schweitzer Engineering Laboratories, Inc. Fault location using traveling waves
US8990036B1 (en) 2013-09-16 2015-03-24 Schweitzer Engineering Laboratories, Inc. Power line parameter adjustment and fault location using traveling waves
WO2016044469A1 (en) 2014-09-16 2016-03-24 Schweitzer Engineering Laboratories, Inc. Fault detection in electric power delivery systems using underreach, directional, and traveling wave elements
US9509399B2 (en) 2015-02-13 2016-11-29 Schweitzer Engineering Laboratories, Inc. Transmission line protection using traveling waves in optical ground wire fiber
US10090664B2 (en) 2015-09-18 2018-10-02 Schweitzer Engineering Laboratories, Inc. Time-domain directional line protection of electric power delivery systems
WO2017049224A1 (en) 2015-09-18 2017-03-23 Schweitzer Engineering Laboratories, Inc. Time-domain line protection of electric power delivery systems
WO2017066205A1 (en) 2015-10-12 2017-04-20 Schweitzer Engineering Laboratories, Inc. Traveling wave directional element
US10180451B2 (en) 2015-10-13 2019-01-15 Schweitzer Engineering Laboratories, Inc. Electric power system monitoring using high-frequency signals
US10564247B2 (en) 2015-10-13 2020-02-18 Schweitzer Engineering Laboratories, Inc. Testing system for traveling wave fault detectors
WO2017066489A1 (en) 2015-10-13 2017-04-20 Schweitzer Engineering Laboratories, Inc. Testing system for traveling wave fault detectors
EP3362807A4 (de) 2015-10-14 2019-06-26 Schweitzer Engineering Laboratories, Inc. Hochfrequenzsignalverarbeitungssystem für stromsystem
CN109154630B (zh) 2016-06-13 2021-01-29 施瓦哲工程实验有限公司 在时域中的过电流元件
US11307264B2 (en) 2016-06-14 2022-04-19 Schweitzer Engineering Laboratories, Inc. Phase selection for traveling wave fault detection systems
US10236675B2 (en) 2016-07-26 2019-03-19 Schweitzer Engineering Laboratories, Inc. Fault detection and protection during steady state using traveling waves
US10585133B2 (en) 2016-11-11 2020-03-10 Schweitzer Engineering Laboratories, Inc. Electric power fault protection device using single-ended traveling wave fault location estimation
US10295585B2 (en) 2016-11-11 2019-05-21 Schweitzer Engineering Laboratories, Inc. Traveling wave based single end fault location
US11280834B2 (en) 2018-08-30 2022-03-22 Schweitzer Engineering Laboratories, Inc. Detection of low-energy events in an electric power system
US10677834B2 (en) 2018-09-14 2020-06-09 Schweitzer Engineering Laboratories, Inc. Distance protection of electric power delivery systems using time domain and frequency domain
US10641815B2 (en) 2018-09-27 2020-05-05 Schweitzer Engineering Laboratories, Inc. Secure distance protection of electric power delivery systems under transient conditions
US11067617B2 (en) 2018-10-08 2021-07-20 Schweitzer Engineering Laboratories, Inc. Single-end traveling wave fault location using line-mounted device
US11592498B2 (en) 2020-10-02 2023-02-28 Schweitzer Engineering Laboratories, Inc. Multi-phase fault identification in capacitor banks
US11735907B2 (en) 2021-02-03 2023-08-22 Schweitzer Engineering Laboratories, Inc. Traveling wave overcurrent protection for electric power delivery systems
US11808824B2 (en) 2021-03-17 2023-11-07 Schweitzer Engineering Laboratories, Inc. Systems and methods to identify open phases of a capacitor bank

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB654913A (en) * 1947-11-28 1951-07-04 Westinghouse Electric Int Co Improvements in or relating to protective relaying systems
SE368092B (de) * 1972-11-06 1974-06-17 Asea Ab
SE373239B (de) * 1973-05-21 1975-01-27 Asea Ab
CH559449A5 (de) * 1973-05-30 1975-02-28 Bbc Brown Boveri & Cie
SE375886B (de) * 1973-08-22 1975-04-28 Asea Ab
DE2405908B1 (de) * 1974-02-07 1975-06-05 Siemens Ag Ansteuerschaltung fuer ein Hauptschuetz
SE387019B (sv) * 1974-11-21 1976-08-23 Asea Ab Skydd for i elektrisk kraftnet ingaende anleggningsdelar
GB1570491A (en) * 1975-11-14 1980-07-02 Gen Electric Co Ltd Protective relay arrangements

Also Published As

Publication number Publication date
FR2410386A1 (fr) 1979-06-22
GB2011740A (en) 1979-07-11
CH641917A5 (de) 1984-03-15
IT7869708A0 (it) 1978-11-27
GB2011740B (en) 1982-09-02
DE2850412A1 (de) 1979-05-31
IT1160971B (it) 1987-03-11
SE7713409L (sv) 1979-05-29
US4254444A (en) 1981-03-03
CA1117585A (en) 1982-02-02
FR2410386B1 (de) 1983-12-02

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