IT1110058B - Apparecchio di rele' per la protezione di impianti di energia elettrica contro guasti di alta impedenza - Google Patents
Apparecchio di rele' per la protezione di impianti di energia elettrica contro guasti di alta impedenzaInfo
- Publication number
- IT1110058B IT1110058B IT19231/79A IT1923179A IT1110058B IT 1110058 B IT1110058 B IT 1110058B IT 19231/79 A IT19231/79 A IT 19231/79A IT 1923179 A IT1923179 A IT 1923179A IT 1110058 B IT1110058 B IT 1110058B
- Authority
- IT
- Italy
- Prior art keywords
- protection
- high impedance
- relay apparatus
- against high
- plants against
- 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
- 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
- H02H7/30—Staggered disconnection
-
- 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
- H02H3/40—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 ratio of voltage and current
- H02H3/402—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 ratio of voltage and current using homopolar quantities
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86878978A | 1978-01-12 | 1978-01-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7919231A0 IT7919231A0 (it) | 1979-01-12 |
IT1110058B true IT1110058B (it) | 1985-12-23 |
Family
ID=25352322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19231/79A IT1110058B (it) | 1978-01-12 | 1979-01-12 | Apparecchio di rele' per la protezione di impianti di energia elettrica contro guasti di alta impedenza |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5497748A (sv) |
BR (1) | BR7900098A (sv) |
DE (1) | DE2900654A1 (sv) |
ES (1) | ES476633A1 (sv) |
FR (1) | FR2414810A1 (sv) |
GB (1) | GB2012505B (sv) |
IT (1) | IT1110058B (sv) |
MX (1) | MX145530A (sv) |
SE (1) | SE436237B (sv) |
ZA (1) | ZA79137B (sv) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63179736U (sv) * | 1987-05-14 | 1988-11-21 | ||
SE459059B (sv) * | 1987-09-16 | 1989-05-29 | Asea Ab | Skydd foer hoegresistiva jordfel |
DE4439499C2 (de) * | 1994-10-27 | 1998-01-29 | Siemens Ag | Verfahren zum Erfassen eines Erdkurzschlusses auf einer elektrischen Energieübertragungsleitung |
US6453248B1 (en) * | 1998-07-21 | 2002-09-17 | Abb Inc. | High impedance fault detection |
AU755700B2 (en) * | 1999-11-29 | 2002-12-19 | Canon Kabushiki Kaisha | Power generation system, and method for installing the same |
ES2323994B1 (es) * | 2006-10-25 | 2010-05-13 | Universidad Del Pais Vasco-Euskal Herriko Unibertsitatea | Sistema de proteccion de linea electrica para determinar el sentido en el que se produce una falta. |
FI126892B (sv) * | 2016-05-23 | 2017-07-31 | Emtele Oy | Felströmindikator |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3539866A (en) * | 1967-10-11 | 1970-11-10 | Federal Pacific Electric Co | Multi-zone fault protection systems |
-
1979
- 1979-01-08 ES ES476633A patent/ES476633A1/es not_active Expired
- 1979-01-09 BR BR7900098A patent/BR7900098A/pt unknown
- 1979-01-10 DE DE19792900654 patent/DE2900654A1/de not_active Withdrawn
- 1979-01-10 MX MX176245A patent/MX145530A/es unknown
- 1979-01-10 GB GB79866A patent/GB2012505B/en not_active Expired
- 1979-01-11 SE SE7900254A patent/SE436237B/sv unknown
- 1979-01-11 JP JP106879A patent/JPS5497748A/ja active Pending
- 1979-01-12 ZA ZA00790137A patent/ZA79137B/xx unknown
- 1979-01-12 IT IT19231/79A patent/IT1110058B/it active
- 1979-01-12 FR FR7900814A patent/FR2414810A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
IT7919231A0 (it) | 1979-01-12 |
ZA79137B (en) | 1979-12-27 |
BR7900098A (pt) | 1979-08-07 |
SE436237B (sv) | 1984-11-19 |
DE2900654A1 (de) | 1979-07-19 |
JPS5497748A (en) | 1979-08-02 |
MX145530A (es) | 1982-03-02 |
SE7900254L (sv) | 1979-09-14 |
GB2012505B (en) | 1982-04-28 |
GB2012505A (en) | 1979-07-25 |
FR2414810A1 (fr) | 1979-08-10 |
ES476633A1 (es) | 1979-12-01 |
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