IT1109682B - Dispositivo di protezione a retecon funzione bloccante per ognifase - Google Patents

Dispositivo di protezione a retecon funzione bloccante per ognifase

Info

Publication number
IT1109682B
IT1109682B IT69709/78A IT6970978A IT1109682B IT 1109682 B IT1109682 B IT 1109682B IT 69709/78 A IT69709/78 A IT 69709/78A IT 6970978 A IT6970978 A IT 6970978A IT 1109682 B IT1109682 B IT 1109682B
Authority
IT
Italy
Prior art keywords
retecon
phase
protection device
blocking function
blocking
Prior art date
Application number
IT69709/78A
Other languages
English (en)
Other versions
IT7869709A0 (it
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 IT7869709A0 publication Critical patent/IT7869709A0/it
Application granted granted Critical
Publication of IT1109682B publication Critical patent/IT1109682B/it

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
    • H02H7/265—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
    • 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)
  • Theoretical Computer Science (AREA)
  • Emergency Protection Circuit Devices (AREA)
IT69709/78A 1977-11-28 1978-11-27 Dispositivo di protezione a retecon funzione bloccante per ognifase IT1109682B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7713410A SE409266B (sv) 1977-11-28 1977-11-28 Releskydd med fasvis sperrfunktion

Publications (2)

Publication Number Publication Date
IT7869709A0 IT7869709A0 (it) 1978-11-27
IT1109682B true IT1109682B (it) 1985-12-23

Family

ID=20333010

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69709/78A IT1109682B (it) 1977-11-28 1978-11-27 Dispositivo di protezione a retecon funzione bloccante per ognifase

Country Status (8)

Country Link
US (1) US4377834A (it)
CA (1) CA1128984A (it)
CH (1) CH633917A5 (it)
DE (1) DE2850413A1 (it)
FR (1) FR2410387A1 (it)
GB (1) GB2010614B (it)
IT (1) IT1109682B (it)
SE (1) SE409266B (it)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE469735B (sv) * 1992-02-12 1993-08-30 Asea Brown Boveri Foerfarande foer att foerhindra oeverstabilisering av laengsdifferentialskydd vid inre fel paa kraftlinjer samt anordning foer genomfoerande av det naemnda foerfarandet
SE470295B (sv) * 1992-05-22 1994-01-10 Asea Brown Boveri Förfarande och anordning för att förhindra understabilisering av längsdifferentialskydd vid yttre fel och strömtransformatormättning
CN102246374B (zh) 2008-12-10 2015-05-27 西门子公司 用于监测供电网络的母线的方法和保护设备
WO2013056144A1 (en) 2011-10-12 2013-04-18 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
US9588168B2 (en) 2013-09-16 2017-03-07 Schweitzer Engineering Laboratories, Inc. Fault location using traveling waves
US9594112B2 (en) 2014-09-16 2017-03-14 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
CN108028529B (zh) 2015-09-18 2019-12-20 施瓦哲工程实验有限公司 电力输送系统的时域线路保护
EP3363095A4 (en) 2015-10-12 2019-08-14 Schweitzer Engineering Laboratories, Inc. HIKING WAVE ELEMENT REPORT
WO2017066476A1 (en) 2015-10-13 2017-04-20 Schweitzer Engineering Laboratories, Inc. Electric power system monitoring using high-frequency signals
US10564246B2 (en) 2015-10-13 2020-02-18 Schweitzer Engineering Laboratories, Inc. Testing system for traveling wave fault detectors
US10564247B2 (en) 2015-10-13 2020-02-18 Schweitzer Engineering Laboratories, Inc. Testing system for traveling wave fault detectors
CN108139439B (zh) 2015-10-14 2021-01-29 施瓦哲工程实验有限公司 高频电力系统信号处理系统
WO2017218600A1 (en) 2016-06-13 2017-12-21 Schweitzer Engineering Laboratories, Inc. Overcurrent element in time domain
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
US12313701B2 (en) 2021-03-17 2025-05-27 Schweitzer Engineering Laboratories, Inc. Capacitor bank fault detection and identification
US11808824B2 (en) 2021-03-17 2023-11-07 Schweitzer Engineering Laboratories, Inc. Systems and methods to identify open phases of a capacitor bank
US12130322B2 (en) 2022-12-02 2024-10-29 Schweitzer Engineering Laboratories, Inc. Traveling wave analysis and fault locating for electric power systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590324A (en) * 1969-06-27 1971-06-29 Westinghouse Electric Corp Phase comparison relaying network
SE368092B (it) * 1972-11-06 1974-06-17 Asea Ab
SE375886B (it) * 1973-08-22 1975-04-28 Asea Ab
SE387019B (sv) * 1974-11-21 1976-08-23 Asea Ab Skydd for i elektrisk kraftnet ingaende anleggningsdelar
US3986079A (en) * 1975-02-07 1976-10-12 Westinghouse Electric Corporation Offset keying technique for segregated phase comparison relaying
GB1570491A (en) * 1975-11-14 1980-07-02 Gen Electric Co Ltd Protective relay arrangements

Also Published As

Publication number Publication date
GB2010614B (en) 1982-01-06
SE7713410L (sv) 1979-05-29
SE409266B (sv) 1979-08-06
CH633917A5 (de) 1982-12-31
IT7869709A0 (it) 1978-11-27
FR2410387A1 (fr) 1979-06-22
US4377834A (en) 1983-03-22
GB2010614A (en) 1979-06-27
DE2850413A1 (de) 1979-05-31
CA1128984A (en) 1982-08-03
FR2410387B1 (it) 1983-11-10

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