BR7902263A - Circuito protetor para varistores de oxido de zinco - Google Patents
Circuito protetor para varistores de oxido de zincoInfo
- Publication number
- BR7902263A BR7902263A BR7902263A BR7902263A BR7902263A BR 7902263 A BR7902263 A BR 7902263A BR 7902263 A BR7902263 A BR 7902263A BR 7902263 A BR7902263 A BR 7902263A BR 7902263 A BR7902263 A BR 7902263A
- Authority
- BR
- Brazil
- Prior art keywords
- zinc oxide
- protective circuit
- oxide varistors
- varistors
- protective
- Prior art date
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
-
- 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
- H02H7/16—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 for capacitors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Thermistors And Varistors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/894,529 US4174529A (en) | 1978-04-10 | 1978-04-10 | Protective circuit for zinc oxide varistors |
Publications (1)
Publication Number | Publication Date |
---|---|
BR7902263A true BR7902263A (pt) | 1979-12-11 |
Family
ID=25403199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR7902263A BR7902263A (pt) | 1978-04-10 | 1979-04-10 | Circuito protetor para varistores de oxido de zinco |
Country Status (8)
Country | Link |
---|---|
US (1) | US4174529A (pt) |
BR (1) | BR7902263A (pt) |
DE (1) | DE2914267A1 (pt) |
FR (1) | FR2423078B1 (pt) |
GB (1) | GB2018535B (pt) |
IT (1) | IT1166722B (pt) |
MX (1) | MX146364A (pt) |
SE (1) | SE7903056L (pt) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4259704A (en) * | 1979-04-20 | 1981-03-31 | General Electric Company | Protective circuit for zinc oxide varistors |
US4295174A (en) * | 1979-05-29 | 1981-10-13 | Westinghouse Electric Corp. | Multi-series group capacitor bank protection equipment |
SE426895B (sv) * | 1981-07-06 | 1983-02-14 | Asea Ab | Skyddsanordning for en seriekondensator i ett hogspenningsnet |
US4482930A (en) * | 1982-06-11 | 1984-11-13 | Westinghouse Electric Corp. | Electrical protection equipment with digital integration apparatus for firing pulse initiation |
SE449151B (sv) * | 1983-06-17 | 1987-04-06 | Asea Ab | Skyddsanordning for en seriekondensator |
CA1256937A (en) * | 1985-04-11 | 1989-07-04 | Philip Chadwick | Zinc oxide stack overvoltage protection against temperature rise and thermal runaway |
SE451520B (sv) * | 1985-05-13 | 1987-10-12 | Asea Ab | Skyddsanordning for ett seriekondensatorbatteri |
US4675771A (en) * | 1985-07-26 | 1987-06-23 | Combined Technologies, Inc. | Fault sensing system for a transformer network |
SE460323B (sv) * | 1988-02-15 | 1989-09-25 | Asea Brown Boveri | Seriekondensatorutrustning |
DE4141142C1 (pt) * | 1991-12-13 | 1993-04-08 | Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De | |
US5617288A (en) * | 1995-06-05 | 1997-04-01 | Leviton Manufacturing Co., In. | Automatic surge suppressor disconnect protection system |
DE10137873C1 (de) | 2001-08-02 | 2002-10-17 | Epcos Ag | Elektrokeramisches Bauelement |
DE102010008973B4 (de) * | 2010-02-24 | 2015-11-05 | Maschinenfabrik Reinhausen Gmbh | Stufenschalter des Hybridtyps mit Halbleiterschaltelementen |
CN103248036A (zh) * | 2013-05-15 | 2013-08-14 | 成都市宏山科技有限公司 | 收音机接口的开机防浪涌保护器 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH213121A (de) * | 1939-06-12 | 1941-01-15 | Haefely & Cie Ag Emil | Schaltungsanordnung zum Schutze eines in einem elektrischen Leitungssystem vorgesehenen Kondensators. |
US2363898A (en) * | 1940-10-26 | 1944-11-28 | Gen Electric | Protective system |
US3319121A (en) * | 1965-03-08 | 1967-05-09 | Gen Electric | Means comprising a triggered vacuum circuit interrupter for protection against overvoltages |
US3581264A (en) * | 1969-04-21 | 1971-05-25 | Dale Electronics | Method of creating variable electrical resistance and means for creating the same |
DE1936552C3 (de) * | 1969-07-18 | 1974-10-24 | Brown, Boveri & Cie Ag, 6800 Mannheim | Meßverfahren zur Messung des bei Ausschaltungen entstehenden Schaltstückabbrandes von Hochspannungsleistungsschaltern |
US3619721A (en) * | 1970-06-01 | 1971-11-09 | Gen Electric | Triggered vacuum gap keep-alive circuit |
US3693053A (en) * | 1971-10-29 | 1972-09-19 | Gen Electric | Metal oxide varistor polyphase transient voltage suppression |
US3883782A (en) * | 1974-05-31 | 1975-05-13 | Robert W Beckwith | Overcurrent relay circuit |
DE2634479A1 (de) * | 1976-07-31 | 1978-02-02 | Schiederwerk Schieder Kg K | Varistor mit schutzvorrichtung gegen thermische ueberlastung |
-
1978
- 1978-04-10 US US05/894,529 patent/US4174529A/en not_active Expired - Lifetime
-
1979
- 1979-04-03 GB GB7911628A patent/GB2018535B/en not_active Expired
- 1979-04-03 IT IT21516/79A patent/IT1166722B/it active
- 1979-04-05 SE SE7903056A patent/SE7903056L/ not_active Application Discontinuation
- 1979-04-09 DE DE19792914267 patent/DE2914267A1/de active Granted
- 1979-04-10 MX MX177254A patent/MX146364A/es unknown
- 1979-04-10 FR FR7909023A patent/FR2423078B1/fr not_active Expired
- 1979-04-10 BR BR7902263A patent/BR7902263A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
FR2423078A1 (fr) | 1979-11-09 |
SE7903056L (sv) | 1979-10-11 |
DE2914267C2 (pt) | 1989-08-31 |
IT7921516A0 (it) | 1979-04-03 |
US4174529A (en) | 1979-11-13 |
FR2423078B1 (fr) | 1985-06-07 |
GB2018535A (en) | 1979-10-17 |
GB2018535B (en) | 1982-07-28 |
DE2914267A1 (de) | 1979-10-18 |
MX146364A (es) | 1982-06-16 |
IT1166722B (it) | 1987-05-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR8004794A (pt) | Circuito programavel protetor de sobrecarga | |
AT378000B (de) | Feuerschutzmasse | |
AR223971A1 (es) | Procedimiento para preparar un oxido de olefina | |
BR7901298A (pt) | Descarregador de surtos de oxidos de zinco | |
BR7902263A (pt) | Circuito protetor para varistores de oxido de zinco | |
IT1122055B (it) | Circuito di protezione | |
ES490655A0 (es) | Mejoras en circuitos protectores para varistores de oxido dezinc | |
MX149865A (es) | Mejoras a circuito protector para cobertor electrico o similar | |
SE7901308L (sv) | Slirskydd | |
JPS5548901A (en) | Zinc oxide varistor heat transmitting device | |
DK350981A (da) | Hurtigafbrydende overstroemssikring | |
BR7900819A (pt) | Arranjo de circuito para impulsao eletromotriz | |
BR8103687A (pt) | Revestimento isolante para varistores de oxido de zinco aplicaveis e para raios e protetores de picos de voltagem | |
IT1103610B (it) | Circuito di protezione elettrico perfezionato | |
MX145530A (es) | Aparato mejorado relevador protector | |
BR8103937A (pt) | Composicao estavel para varistor de oxido de zinco | |
MX147838A (es) | Mejoras en circuito para proteccion contra sobrevoltajes | |
BR7901635A (pt) | Dispositivo de para-raios | |
IT1094061B (it) | Protezione antipallottole | |
BR8304119A (pt) | Varistor de oxido de zinco | |
IT8026511A0 (it) | Terminale protettore. | |
JPS55155485A (en) | Zinc oxide arrester element with gap | |
BR7901654A (pt) | Dispositivo de para-raios | |
SE7904839L (sv) | Stabila zinkoxid-varistorkompositioner | |
SE7905688L (sv) | Metalloxidvaristor |