ES460665A1 - Un sistema perfeccionado de medicion de corriente. - Google Patents
Un sistema perfeccionado de medicion de corriente.Info
- Publication number
- ES460665A1 ES460665A1 ES460665A ES460665A ES460665A1 ES 460665 A1 ES460665 A1 ES 460665A1 ES 460665 A ES460665 A ES 460665A ES 460665 A ES460665 A ES 460665A ES 460665 A1 ES460665 A1 ES 460665A1
- Authority
- ES
- Spain
- Prior art keywords
- current measuring
- measuring system
- earth leakage
- particularly suitable
- device equipped
- 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
- H02H3/33—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 using summation current transformers
- H02H3/332—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 using summation current transformers with means responsive to dc component in the fault current
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
- G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Un sistema perfeccionado de medición de corriente, más particularmente adecuado para uso como sistema de detección de fugas o derivaciones a tierra, que comprende un circuito magnético débil o permeable dotado de uno o más devanados primarios por donde va a pasar una corriente que se va a medir o unas corrientes que se van a detectar en busca de sus valores de suma o diferencia, y dotado de un devanado secundario incluido en un circuito de conexión en serie de una fuente de alimentación de energía eléctrica, un dispositivo conmutador para cambiar la polaridad de la tensión aplicada por la fuente de alimentación al devanado secundario, un dispositivo de detección de corriente para suministrar al dispositivo conmutador una señal de conmutación cuando la corriente que recorre el devanado ha alcanzado un valor límite prefijado,
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7607752A NL185241C (nl) | 1976-07-13 | 1976-07-13 | Stroommeetsysteem. |
NL7706316A NL7706316A (en) | 1976-07-13 | 1977-06-08 | Current measuring system with earthing detector - includes differential amplifier with positive and negative feedback loops and current measuring resistor in negative loop |
NL7706317A NL190969C (nl) | 1976-07-13 | 1977-06-08 | Stroommeetsysteem. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES460665A1 true ES460665A1 (es) | 1978-11-16 |
Family
ID=27352015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES460665A Expired ES460665A1 (es) | 1976-07-13 | 1977-07-12 | Un sistema perfeccionado de medicion de corriente. |
Country Status (13)
Country | Link |
---|---|
US (1) | US4293813A (es) |
JP (1) | JPS5945106B2 (es) |
AT (1) | AT364018B (es) |
BE (1) | BE856056A (es) |
CH (1) | CH628441A5 (es) |
DE (1) | DE2730874C2 (es) |
DK (1) | DK147215C (es) |
ES (1) | ES460665A1 (es) |
FR (1) | FR2361663A1 (es) |
GB (1) | GB1582035A (es) |
IT (1) | IT1077324B (es) |
NO (1) | NO148046C (es) |
SE (1) | SE421352B (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3007227A1 (de) * | 1980-02-27 | 1981-10-22 | Schupa Elektro-GmbH + Co KG, 5885 Schalksmühle | Hochempfindlicher, allstromsensitiver fehlerstromschutzschalter |
US4371832A (en) * | 1980-05-27 | 1983-02-01 | Wilson Gerald L | DC Ground fault detector wherein fault is sensed by noting imbalance of magnetic flux in a magnetic core |
US4322769A (en) * | 1980-12-22 | 1982-03-30 | International Business Machines Corporation | Electric switch operation monitoring circuitry |
CH660254A5 (de) * | 1983-07-20 | 1987-03-31 | Landis & Gyr Ag | Stromwandler mit fehlerkompensation. |
AT383906B (de) * | 1985-04-16 | 1987-09-10 | Cti Ges Zur Pruefung Elektrote | Fehlerstromschutzschalter fuer fehlerwechselund fehlergleichstroeme |
NL8602145A (nl) * | 1986-08-22 | 1988-03-16 | Holec Syst & Componenten | Meetschakeling voor continue, nauwkeurige meting van gelijk- en wisselstroom. |
JPS63162605U (es) * | 1987-04-14 | 1988-10-24 | ||
JP3286431B2 (ja) * | 1993-10-12 | 2002-05-27 | 住友特殊金属株式会社 | 直流電流センサー |
US6388435B1 (en) * | 1998-12-31 | 2002-05-14 | General Electric Company | Methods and apparatus for voltage measurement |
US6603301B2 (en) * | 2001-07-26 | 2003-08-05 | Agilent Technologies, Inc. | Multiple range current measurement system with low power dissipation, fast setting time, and low common mode voltage error |
DE10208941C1 (de) * | 2002-02-28 | 2003-06-05 | Dbt Autom Gmbh | Verfahren und Schaltungsanordnung zum Messen von Erdschlüssen in eigensicheren Stromzuführungen |
FR2894034B1 (fr) * | 2005-11-28 | 2008-01-18 | Renault Sas | Mesure deportee du courant traversant une charge |
IES20100604A2 (en) | 2010-09-21 | 2011-06-08 | Shakira Ltd | DC & AC current detection circuit |
JP5702592B2 (ja) * | 2010-12-14 | 2015-04-15 | 富士電機株式会社 | 電流検知装置 |
JP2012233718A (ja) * | 2011-04-28 | 2012-11-29 | Fuji Electric Fa Components & Systems Co Ltd | 電流検出装置 |
DE102011089606A1 (de) * | 2011-12-22 | 2013-06-27 | Ge Energy Power Conversion Gmbh | Verfahren zum Betreiben einer elektrischen Schaltung |
JP2014130061A (ja) * | 2012-12-28 | 2014-07-10 | Fuji Electric Fa Components & Systems Co Ltd | 直流電流検知装置 |
US11372056B2 (en) * | 2020-05-26 | 2022-06-28 | Sandisk Technologies Llc | Circuit for detecting pin-to-pin leaks of an integrated circuit package |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3768011A (en) * | 1970-06-09 | 1973-10-23 | W Swain | Means for measuring magnitude and direction of a direct current or permanent magnet, including clip-on direct current sensing inductor |
-
1977
- 1977-06-23 BE BE1008220A patent/BE856056A/xx not_active IP Right Cessation
- 1977-06-29 GB GB27220/77A patent/GB1582035A/en not_active Expired
- 1977-06-30 SE SE7707606A patent/SE421352B/xx not_active IP Right Cessation
- 1977-07-06 AT AT0482877A patent/AT364018B/de not_active IP Right Cessation
- 1977-07-08 CH CH844277A patent/CH628441A5/de not_active IP Right Cessation
- 1977-07-08 DE DE2730874A patent/DE2730874C2/de not_active Expired
- 1977-07-08 DK DK310277A patent/DK147215C/da not_active IP Right Cessation
- 1977-07-12 IT IT25654/77A patent/IT1077324B/it active
- 1977-07-12 ES ES460665A patent/ES460665A1/es not_active Expired
- 1977-07-12 NO NO772476A patent/NO148046C/no unknown
- 1977-07-13 JP JP52084021A patent/JPS5945106B2/ja not_active Expired
- 1977-07-13 FR FR7721755A patent/FR2361663A1/fr active Granted
-
1979
- 1979-02-22 US US06/014,089 patent/US4293813A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS5331176A (en) | 1978-03-24 |
AT364018B (de) | 1981-09-25 |
ATA482877A (de) | 1981-02-15 |
DK147215C (da) | 1984-10-29 |
CH628441A5 (de) | 1982-02-26 |
IT1077324B (it) | 1985-05-04 |
DK310277A (da) | 1978-01-14 |
DK147215B (da) | 1984-05-14 |
FR2361663A1 (fr) | 1978-03-10 |
NO772476L (no) | 1978-01-16 |
FR2361663B1 (es) | 1983-06-17 |
SE7707606L (sv) | 1978-01-14 |
JPS5945106B2 (ja) | 1984-11-02 |
DE2730874C2 (de) | 1983-05-05 |
NO148046B (no) | 1983-04-18 |
DE2730874A1 (de) | 1978-02-02 |
NO148046C (no) | 1983-08-03 |
BE856056A (nl) | 1977-12-23 |
GB1582035A (en) | 1980-12-31 |
SE421352B (sv) | 1981-12-14 |
US4293813A (en) | 1981-10-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC1A | Transfer granted |