ES371934A1 - Un sistema de proteccion para proteger contra corrientes deaveria redes de corriente electrica de potencia. - Google Patents
Un sistema de proteccion para proteger contra corrientes deaveria redes de corriente electrica de potencia.Info
- Publication number
- ES371934A1 ES371934A1 ES371934A ES371934A ES371934A1 ES 371934 A1 ES371934 A1 ES 371934A1 ES 371934 A ES371934 A ES 371934A ES 371934 A ES371934 A ES 371934A ES 371934 A1 ES371934 A1 ES 371934A1
- Authority
- ES
- Spain
- Prior art keywords
- pulses
- value
- circuit
- magnitude
- output
- 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
- 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
- H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/34—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
-
- 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
- H02H3/08—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 excess current
- H02H3/093—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 excess current with timing means
Landscapes
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76558368A | 1968-10-07 | 1968-10-07 | |
US76558268A | 1968-10-07 | 1968-10-07 | |
US76555268A | 1968-10-07 | 1968-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES371934A1 true ES371934A1 (es) | 1971-11-16 |
Family
ID=27419612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES371934A Expired ES371934A1 (es) | 1968-10-07 | 1969-09-26 | Un sistema de proteccion para proteger contra corrientes deaveria redes de corriente electrica de potencia. |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE739905A (es) |
BR (1) | BR6913083D0 (es) |
ES (1) | ES371934A1 (es) |
FR (1) | FR2020078B1 (es) |
GB (2) | GB1292143A (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2000400A (en) * | 1977-06-23 | 1979-01-04 | Matthews G | Overload protection circuit |
US4255774A (en) * | 1979-03-16 | 1981-03-10 | General Electric Company | Static instantaneous overcurrent relay with low transient overreach |
US4513342A (en) * | 1983-01-31 | 1985-04-23 | General Electric Company | Current-squared-time (i2 t) protection system |
GB2140633A (en) * | 1983-04-29 | 1984-11-28 | Plessey Co Plc | Load tripping circuits |
-
1969
- 1969-09-26 ES ES371934A patent/ES371934A1/es not_active Expired
- 1969-10-06 BE BE739905D patent/BE739905A/xx unknown
- 1969-10-07 BR BR21308369A patent/BR6913083D0/pt unknown
- 1969-10-07 GB GB2308672A patent/GB1292143A/en not_active Expired
- 1969-10-07 GB GB4609269A patent/GB1292142A/en not_active Expired
- 1969-10-07 FR FR6934239A patent/FR2020078B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2020078B1 (es) | 1973-05-25 |
FR2020078A1 (es) | 1970-07-10 |
BR6913083D0 (pt) | 1973-01-11 |
BE739905A (es) | 1970-03-16 |
GB1292142A (en) | 1972-10-11 |
GB1292143A (en) | 1972-10-11 |
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