ES2103173A1 - Sensor digital de corriente autocalibrado. - Google Patents
Sensor digital de corriente autocalibrado.Info
- Publication number
- ES2103173A1 ES2103173A1 ES09400683A ES9400683A ES2103173A1 ES 2103173 A1 ES2103173 A1 ES 2103173A1 ES 09400683 A ES09400683 A ES 09400683A ES 9400683 A ES9400683 A ES 9400683A ES 2103173 A1 ES2103173 A1 ES 2103173A1
- Authority
- ES
- Spain
- Prior art keywords
- current
- self
- current sensor
- calibrated
- winding
- 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.)
- Granted
Links
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
SENSOR DIGITAL DE CORRIENTE AUTOCALIBRADO. CONSISTE EN UN NUCLEO (1) DE MATERIAL MAGNETICO QUE INTENSIFICA EL CAMPO CREADO POR UNA CORRIENTE A MEDIR (2), UN ARROLLAMIENTO PARA DETECCION DEL CAMPO MAGNETICO (3), UN MICROPROCESADOR PARA TRATAR DIGITALMENTE ESTA SEÑAL (7) Y GENERAR DOS SEÑALES: UNA EN FORMA DE CORRIENTE DE REALIMENTACION MAGNETICA, INYECTADA EN UN ARROLLAMIENTO DE REALIMENTACION (4), QUE TIENDE A ANULAR EL CAMPO MAGNETICO CREADO POR LA CORRIENTE A MEDIR (2), EVITANDO LA SATURACION DEL NUCLEO, Y OTRA EN FORMA DE TENSION (13) QUE COMPENSA LA DERIVA DEL AMPLIFICADOR DE ENTRADA. ASIMISMO INCLUYE UN DISPOSITIVO DE INYECCION DE CORRIENTE (11) EN EL ARROLLAMIENTO DE REALIMENTACION (4), EQUIVALENTE A UNA CORRIENTE-IMAGEN EN LA ENTRADA, QUE PERMITE AUTOCALIBRAR EL SENSOR MANTENIENDO LA PRECISION DE LA MEDIDA INCLUSO EN CONDICIONES ADVERSAS, TALES COMO LAS CAUSADAS POR CARGAS NO LINEALES.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9400683A ES2103173B1 (es) | 1994-03-29 | 1994-03-29 | Sensor digital de corriente autocalibrado. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9400683A ES2103173B1 (es) | 1994-03-29 | 1994-03-29 | Sensor digital de corriente autocalibrado. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2103173A1 true ES2103173A1 (es) | 1997-08-16 |
ES2103173B1 ES2103173B1 (es) | 1998-04-01 |
Family
ID=8285751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9400683A Expired - Lifetime ES2103173B1 (es) | 1994-03-29 | 1994-03-29 | Sensor digital de corriente autocalibrado. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2103173B1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015070927A1 (en) * | 2013-11-18 | 2015-05-21 | Enel Distribuzione S.P.A. | Electricity meter with fault detection mechanism and fault detection method |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4255704A (en) * | 1979-10-01 | 1981-03-10 | General Electric Company | Zero crossing detection and electronic compensation of D. C. saturation magnetization in current transformers used in watthour meter installations |
US4278940A (en) * | 1979-04-25 | 1981-07-14 | General Electric Company | Means for automatically compensating DC magnetization in a transformer |
EP0284472A1 (en) * | 1987-03-04 | 1988-09-28 | Sangamo Weston, Inc. | Current measuring and magnetic core compensating apparatus and method |
US4901008A (en) * | 1987-10-14 | 1990-02-13 | Westinghouse Brake & Signal Company Ltd. | Circuit arrangement for testing the correct functioning of circuit(s) |
FR2638235A1 (fr) * | 1988-10-21 | 1990-04-27 | Robert Jean | Procede et dispositifs pour generer un courant alternatif secondaire dont l'intensite est proportionnelle a celle d'un courant primaire et compteurs equipes de ces dispositifs |
EP0386604A2 (de) * | 1989-03-07 | 1990-09-12 | Zellweger Luwa Ag | Statischer Elektrizitätszähler |
DE4128989A1 (de) * | 1991-08-31 | 1993-03-04 | Forschungsvereinigung Antriebs | Stromsensor |
EP0580473A1 (fr) * | 1992-07-15 | 1994-01-26 | ABB CONTROL Société Anonyme | Transformateur asservi d'intensité pour courants continus, alternatifs ou pulses |
-
1994
- 1994-03-29 ES ES9400683A patent/ES2103173B1/es not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4278940A (en) * | 1979-04-25 | 1981-07-14 | General Electric Company | Means for automatically compensating DC magnetization in a transformer |
US4255704A (en) * | 1979-10-01 | 1981-03-10 | General Electric Company | Zero crossing detection and electronic compensation of D. C. saturation magnetization in current transformers used in watthour meter installations |
EP0284472A1 (en) * | 1987-03-04 | 1988-09-28 | Sangamo Weston, Inc. | Current measuring and magnetic core compensating apparatus and method |
US4901008A (en) * | 1987-10-14 | 1990-02-13 | Westinghouse Brake & Signal Company Ltd. | Circuit arrangement for testing the correct functioning of circuit(s) |
FR2638235A1 (fr) * | 1988-10-21 | 1990-04-27 | Robert Jean | Procede et dispositifs pour generer un courant alternatif secondaire dont l'intensite est proportionnelle a celle d'un courant primaire et compteurs equipes de ces dispositifs |
EP0386604A2 (de) * | 1989-03-07 | 1990-09-12 | Zellweger Luwa Ag | Statischer Elektrizitätszähler |
DE4128989A1 (de) * | 1991-08-31 | 1993-03-04 | Forschungsvereinigung Antriebs | Stromsensor |
EP0580473A1 (fr) * | 1992-07-15 | 1994-01-26 | ABB CONTROL Société Anonyme | Transformateur asservi d'intensité pour courants continus, alternatifs ou pulses |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015070927A1 (en) * | 2013-11-18 | 2015-05-21 | Enel Distribuzione S.P.A. | Electricity meter with fault detection mechanism and fault detection method |
US10048308B2 (en) | 2013-11-18 | 2018-08-14 | Enel Distribuzione S.P.A. | Electricity meter with fault detection mechanism and fault detection method |
Also Published As
Publication number | Publication date |
---|---|
ES2103173B1 (es) | 1998-04-01 |
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Legal Events
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EC2A | Search report published |
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