BR7807152A - Processo de protecao seletiva para condutores eletricos e dispositivo para a execucao desse processo - Google Patents
Processo de protecao seletiva para condutores eletricos e dispositivo para a execucao desse processoInfo
- Publication number
- BR7807152A BR7807152A BR7807152A BR7807152A BR7807152A BR 7807152 A BR7807152 A BR 7807152A BR 7807152 A BR7807152 A BR 7807152A BR 7807152 A BR7807152 A BR 7807152A BR 7807152 A BR7807152 A BR 7807152A
- Authority
- BR
- Brazil
- Prior art keywords
- execution
- electrical conductors
- selective protection
- protection process
- selective
- Prior art date
Links
- 239000004020 conductor Substances 0.000 title 1
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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1319677A CH623964A5 (Direct) | 1977-10-31 | 1977-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR7807152A true BR7807152A (pt) | 1979-07-17 |
Family
ID=4390230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR7807152A BR7807152A (pt) | 1977-10-31 | 1978-10-30 | Processo de protecao seletiva para condutores eletricos e dispositivo para a execucao desse processo |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4237511A (Direct) |
| AT (1) | AT365869B (Direct) |
| BE (1) | BE871646R (Direct) |
| BR (1) | BR7807152A (Direct) |
| CH (1) | CH623964A5 (Direct) |
| DE (1) | DE2753969C2 (Direct) |
| DK (1) | DK482778A (Direct) |
| FR (1) | FR2407594A2 (Direct) |
| GB (1) | GB2010610B (Direct) |
| IT (1) | IT1160014B (Direct) |
| NL (1) | NL7810771A (Direct) |
| SE (1) | SE442694B (Direct) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2930067A1 (de) | 1979-07-02 | 1981-01-08 | Bbc Brown Boveri & Cie | Verfahren und einrichtung fuer den kurzschlusschutz von wechselstromleitungen |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1588532C3 (de) * | 1966-04-11 | 1975-03-06 | Meidensha Electric Mfg. Co. Ltd. | Distanzrelais |
| DE2064679C3 (de) * | 1970-12-31 | 1973-11-29 | Hartmann & Braun Ag, 6000 Frankfurt | Elektronische Distanzmeßschaltung |
| US3731152A (en) * | 1972-05-25 | 1973-05-01 | Westinghouse Electric Corp | Impedance distance relay |
| GB1570491A (en) * | 1975-11-14 | 1980-07-02 | Gen Electric Co Ltd | Protective relay arrangements |
-
1977
- 1977-10-31 CH CH1319677A patent/CH623964A5/de not_active IP Right Cessation
- 1977-12-03 DE DE2753969A patent/DE2753969C2/de not_active Expired
-
1978
- 1978-10-12 AT AT0734978A patent/AT365869B/de not_active IP Right Cessation
- 1978-10-23 US US05/953,788 patent/US4237511A/en not_active Expired - Lifetime
- 1978-10-26 IT IT29124/78A patent/IT1160014B/it active
- 1978-10-30 BR BR7807152A patent/BR7807152A/pt unknown
- 1978-10-30 NL NL7810771A patent/NL7810771A/xx not_active Application Discontinuation
- 1978-10-30 SE SE7811244A patent/SE442694B/sv not_active IP Right Cessation
- 1978-10-30 BE BE191430A patent/BE871646R/xx active
- 1978-10-30 FR FR7830786A patent/FR2407594A2/fr active Pending
- 1978-10-30 DK DK482778A patent/DK482778A/da not_active Application Discontinuation
- 1978-10-31 GB GB7842578A patent/GB2010610B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7810771A (nl) | 1979-05-02 |
| DK482778A (da) | 1979-05-01 |
| CH623964A5 (Direct) | 1981-06-30 |
| IT1160014B (it) | 1987-03-04 |
| SE7811244L (sv) | 1979-05-01 |
| GB2010610B (en) | 1982-08-18 |
| FR2407594A2 (fr) | 1979-05-25 |
| AT365869B (de) | 1982-02-25 |
| DE2753969A1 (de) | 1979-05-03 |
| SE442694B (sv) | 1986-01-20 |
| GB2010610A (en) | 1979-06-27 |
| ATA734978A (de) | 1981-06-15 |
| DE2753969C2 (de) | 1984-03-15 |
| IT7829124A0 (it) | 1978-10-26 |
| BE871646R (fr) | 1979-02-15 |
| US4237511A (en) | 1980-12-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR7804013A (pt) | Processo para a fabricacao de disposicoes eletricamente condutoras e soldaveis | |
| BR7803390A (pt) | Fusivel eletrico de seguranca e processo para sua manufatura | |
| BR8100894A (pt) | Dispositivo gerador termoeletrico e processo para construcao do mesmo | |
| BR7803997A (pt) | Processo,sondas e dispositivo para exploracao de sondagens | |
| BR7808464A (pt) | Processo de protecao e circuitos para unidades de aquecimento de resistencias eletricas encapadas | |
| BR7806653A (pt) | Processo e dispositivo para a preparacao de carvao | |
| BR7806172A (pt) | Processo de fixacao de elementos e dispositivo para levar a efeito o dito processo | |
| BR7808303A (pt) | Processo e dispositivo para exploracao de jazidas sub-aquaticas | |
| BR7803708A (pt) | Processo e dispositivo para a fabricacao de clinquer de cimento | |
| BR7700990A (pt) | Processo de soldagem a plasmamig e dispositivo para execucao deste processo | |
| BR7807110A (pt) | Processo e dispositivo para a supervisao de curto circuitos em condutores eletricos | |
| BR7608373A (pt) | Processo de fabricacao de isoladores suspensos para linhas eletricas e dispositivo de emprego do mesmo | |
| BR8007667A (pt) | Processo para a obtencao de contatos eletricos compostos e contatos assim obtidos | |
| BR7807152A (pt) | Processo de protecao seletiva para condutores eletricos e dispositivo para a execucao desse processo | |
| BR7804351A (pt) | Processo e dispositivo para a fabricacao de chapas | |
| IT1091900B (it) | Processo e dispositivo per perforare pezzi | |
| BR7803973A (pt) | Processo e dispositivo para a fabricacao de um fio envolvente | |
| BR7807111A (pt) | Processo e dispositivo de ensaio de sondas de diagrafia eletrica | |
| BR7702283A (pt) | Processo em duas etapas e dispositivo para a separacao de alcatrao | |
| BR8003012A (pt) | Processo e instalacao para a fabricacao de cabos para telecomunicacoes | |
| BR7803427A (pt) | Dispositivo e processo de soldagem eletrica | |
| BR7807684A (pt) | Processo e dispositivo para a obtencao de fios quimicos potencialmente frisaveis | |
| BR7801948A (pt) | Processo para a preparacao de um copolimero em bloco e copolimero em bloco | |
| BR7801485A (pt) | Processo e dispositivo para a fabricacao do ozonio | |
| SE7810043L (sv) | Distansskyddanordning for elektriska ledningar |