ES441095A1 - Mejoras en la construccion de reles estaticos protectores deexceso de corriente electrica. - Google Patents
Mejoras en la construccion de reles estaticos protectores deexceso de corriente electrica.Info
- Publication number
- ES441095A1 ES441095A1 ES441095A ES441095A ES441095A1 ES 441095 A1 ES441095 A1 ES 441095A1 ES 441095 A ES441095 A ES 441095A ES 441095 A ES441095 A ES 441095A ES 441095 A1 ES441095 A1 ES 441095A1
- Authority
- ES
- Spain
- Prior art keywords
- heat
- overcurrents
- overcurrent relay
- protects electrical
- static overcurrent
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images
-
- 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
- H02H7/06—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 dynamo-electric generators; for synchronous capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Generators And Motors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/509,879 US3942074A (en) | 1974-09-27 | 1974-09-27 | Static overcurrent relay |
Publications (1)
Publication Number | Publication Date |
---|---|
ES441095A1 true ES441095A1 (es) | 1977-03-16 |
Family
ID=24028463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES441095A Expired ES441095A1 (es) | 1974-09-27 | 1975-09-19 | Mejoras en la construccion de reles estaticos protectores deexceso de corriente electrica. |
Country Status (7)
Country | Link |
---|---|
US (1) | US3942074A (es) |
BR (1) | BR7506317A (es) |
CA (1) | CA1058740A (es) |
DE (1) | DE2542337A1 (es) |
ES (1) | ES441095A1 (es) |
FR (1) | FR2286530A1 (es) |
SE (1) | SE7510406L (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55157927A (en) * | 1979-05-24 | 1980-12-09 | Fuji Electric Co Ltd | Electronic overload protecting device |
IT1193453B (it) * | 1979-09-03 | 1988-06-22 | Puntimatic Snc D Musiani Franc | Dispositivo rivelatore di sovracorrente e di mancanza di fase |
DE2939938C2 (de) * | 1979-09-28 | 1984-05-30 | Siemens AG, 1000 Berlin und 8000 München | Überlast-Schutzanordnung für eine elektrische Maschine |
DE3219199C2 (de) * | 1982-05-21 | 1987-04-16 | Hartmann & Braun Ag, 6000 Frankfurt | Schaltungsanordnung zur Überwachung der Erwärmung von elektrisch betriebenen Motoren |
FR2530089A1 (fr) * | 1982-07-12 | 1984-01-13 | Merlin Gerin | Declencheur electronique analogique pour disjoncteur de protection contre les surintensites d'un reseau a courant alternatif |
US4513342A (en) * | 1983-01-31 | 1985-04-23 | General Electric Company | Current-squared-time (i2 t) protection system |
EP0445315B1 (de) * | 1990-03-05 | 1994-01-26 | Siemens Aktiengesellschaft | Verfahren und Einrichtung zur lastadaptiven Überlast-Überwachung |
KR0145614B1 (ko) * | 1995-07-03 | 1998-10-01 | 김광호 | 온도보상 기능을 갖는 직류 전동기 과전류 검출장치 |
US7209940B1 (en) * | 2003-06-10 | 2007-04-24 | National Semiconductor Corporation | Temperature compensated square function generator |
EP2773002B8 (en) * | 2013-02-28 | 2016-04-06 | General Electric Technology GmbH | Protection system and method for an electrical variable speed doubly fed induction machine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2897407A (en) * | 1953-11-03 | 1959-07-28 | Gen Electric | Negative-phase-sequence responsive apparatus |
US3662220A (en) * | 1959-03-19 | 1972-05-09 | Mc Graw Edison Co | Time delay device |
US3154737A (en) * | 1960-05-13 | 1964-10-27 | Gen Electric | Phase-sequence network for eliminating response failure upon positive and negative sequence cancellation |
US3317794A (en) * | 1964-04-13 | 1967-05-02 | Gen Electric | Overcurrent protective means |
US3531689A (en) * | 1968-06-10 | 1970-09-29 | Forney Eng Co | Solid state overcurrent relay |
CH534444A (de) * | 1972-05-23 | 1973-02-28 | Sprecher & Schuh Ag | Elektronisches Motorschutzrelais mit stromabhängiger Auslösung |
US3849706A (en) * | 1973-10-04 | 1974-11-19 | Westinghouse Electric Corp | Logarithmic computing circuit |
-
1974
- 1974-09-27 US US05/509,879 patent/US3942074A/en not_active Expired - Lifetime
-
1975
- 1975-09-03 CA CA234,736A patent/CA1058740A/en not_active Expired
- 1975-09-17 SE SE7510406A patent/SE7510406L/xx unknown
- 1975-09-19 ES ES441095A patent/ES441095A1/es not_active Expired
- 1975-09-23 DE DE19752542337 patent/DE2542337A1/de active Pending
- 1975-09-26 FR FR7529574A patent/FR2286530A1/fr not_active Withdrawn
- 1975-09-29 BR BR7506317*A patent/BR7506317A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
DE2542337A1 (de) | 1976-04-15 |
CA1058740A (en) | 1979-07-17 |
FR2286530A1 (fr) | 1976-04-23 |
SE7510406L (sv) | 1976-03-29 |
BR7506317A (pt) | 1976-08-03 |
US3942074A (en) | 1976-03-02 |
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