BR8205496A - Processo e dispositivo para a determinacao de falhas em condutores eletricos de acordo com o principio de sub-unpedancia - Google Patents

Processo e dispositivo para a determinacao de falhas em condutores eletricos de acordo com o principio de sub-unpedancia

Info

Publication number
BR8205496A
BR8205496A BR8205496A BR8205496A BR8205496A BR 8205496 A BR8205496 A BR 8205496A BR 8205496 A BR8205496 A BR 8205496A BR 8205496 A BR8205496 A BR 8205496A BR 8205496 A BR8205496 A BR 8205496A
Authority
BR
Brazil
Prior art keywords
unpedancy
sub
principle
electric conductors
conductors according
Prior art date
Application number
BR8205496A
Other languages
English (en)
Portuguese (pt)
Inventor
Ivan De Mesmaeker
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 BR8205496A publication Critical patent/BR8205496A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/08—Locating faults in cables, transmission lines, or 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Locating Faults (AREA)
BR8205496A 1981-09-22 1982-09-20 Processo e dispositivo para a determinacao de falhas em condutores eletricos de acordo com o principio de sub-unpedancia BR8205496A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH609481 1981-09-22

Publications (1)

Publication Number Publication Date
BR8205496A true BR8205496A (pt) 1983-08-23

Family

ID=4304172

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8205496A BR8205496A (pt) 1981-09-22 1982-09-20 Processo e dispositivo para a determinacao de falhas em condutores eletricos de acordo com o principio de sub-unpedancia

Country Status (6)

Country Link
US (1) US4458285A (enExample)
EP (1) EP0075348B1 (enExample)
BR (1) BR8205496A (enExample)
CA (1) CA1194549A (enExample)
DE (1) DE3265428D1 (enExample)
IN (1) IN156517B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2690573B1 (fr) * 1992-04-28 1997-05-09 Merlin Gerin Dispositif de controle de defaut homopolaire dans un reseau de distribution electrique.
FR2692086B1 (fr) * 1992-06-03 1995-10-06 Electricite De France Procede et dispositif de protection selective contre les defauts a la terre d'un reseau electrique.
US5349490A (en) * 1992-10-15 1994-09-20 Schweitzer Engineering Laboratories, Inc. Negative sequence directional element for a relay useful in protecting power transmission lines
US6869282B2 (en) * 2002-03-04 2005-03-22 Robert P. Carmichael Implant positioning device and method
CN103605012B (zh) * 2013-10-23 2016-08-24 国家电网公司 一种励磁系统试验小车
CN110470980B (zh) * 2019-08-15 2020-10-16 电子科技大学 基于遗传算法的模拟电路故障特征范围确定方法
CN117458396A (zh) * 2023-11-16 2024-01-26 中广核工程有限公司 发电机失磁保护与励磁限制匹配性综合分析方法和系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US409269A (en) * 1889-08-20 Nahan bros
CH402137A (de) * 1963-06-28 1965-11-15 Bbc Brown Boveri & Cie Richtungsrelais
GB1096412A (en) * 1964-04-28 1967-12-29 English Electric Co Ltd Electrical protective relays
SU480134A1 (ru) * 1973-05-03 1975-08-05 Всесоюзный Государственный Проектно-Изыскательский И Научно-Исследовательский Институт "Энергосетьпроект" Реле сопротивлени
CH613570A5 (enExample) * 1976-03-25 1979-09-28 Bbc Brown Boveri & Cie

Also Published As

Publication number Publication date
US4458285A (en) 1984-07-03
DE3265428D1 (en) 1985-09-19
IN156517B (enExample) 1985-08-24
CA1194549A (en) 1985-10-01
EP0075348B1 (de) 1985-08-14
EP0075348A1 (de) 1983-03-30

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 20/09/97