IT1294395B1 - Procedimento e dispositivo per la sorveglianza automatica di interruttori di protezione a corrente di dispersione. - Google Patents
Procedimento e dispositivo per la sorveglianza automatica di interruttori di protezione a corrente di dispersione.Info
- Publication number
- IT1294395B1 IT1294395B1 IT97TO000405A ITTO970405A IT1294395B1 IT 1294395 B1 IT1294395 B1 IT 1294395B1 IT 97TO000405 A IT97TO000405 A IT 97TO000405A IT TO970405 A ITTO970405 A IT TO970405A IT 1294395 B1 IT1294395 B1 IT 1294395B1
- Authority
- IT
- Italy
- Prior art keywords
- procedure
- leakage current
- current protection
- automatic monitoring
- protection switches
- Prior art date
Links
- 238000000034 method Methods 0.000 title 1
- 238000012544 monitoring process Methods 0.000 title 1
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
- H02H3/334—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 to produce an artificial unbalance for other protection or monitoring reasons or remote control
- H02H3/335—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 to produce an artificial unbalance for other protection or monitoring reasons or remote control the main function being self testing of the device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
-
- 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
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19619629A DE19619629C1 (de) | 1996-05-15 | 1996-05-15 | Verfahren und Anordnung zur automatischen Überwachung von Fehlerstromschutzschaltern |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO970405A0 ITTO970405A0 (it) | 1997-05-14 |
ITTO970405A1 ITTO970405A1 (it) | 1998-11-14 |
IT1294395B1 true IT1294395B1 (it) | 1999-03-24 |
Family
ID=7794423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT97TO000405A IT1294395B1 (it) | 1996-05-15 | 1997-05-14 | Procedimento e dispositivo per la sorveglianza automatica di interruttori di protezione a corrente di dispersione. |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE19619629C1 (it) |
FR (1) | FR2748869B1 (it) |
IT (1) | IT1294395B1 (it) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19954037A1 (de) * | 1999-10-29 | 2001-05-03 | Siemens Ag | Verfahren zum Überwachen der Funktionsfähigkeit eines Bauelementes eines elektrischen Gerätes während des Betriebes |
DE10120570A1 (de) * | 2001-04-26 | 2002-11-21 | Siemens Ag | Fehlerspannungs-Schutzeinrichtung |
GB0509045D0 (en) | 2005-05-04 | 2005-06-08 | Deepstream Technologies Ltd | Circuit protection device and test facility to simulate a fault condition |
DE102012202642A1 (de) | 2012-02-21 | 2013-08-22 | Siemens Aktiengesellschaft | Elektrischer Schalter |
WO2019075217A1 (en) * | 2017-10-11 | 2019-04-18 | Littelfuse, Inc. | ARC DETECTION BASED ON CURRENT FLOW VARIANCE |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3537140A1 (de) * | 1985-10-18 | 1987-04-23 | Turck Werner Kg | Selbstueberwachender fehlerstromschutzschalter |
DE3835677C2 (de) * | 1988-10-20 | 1997-07-17 | Metrawatt Gmbh Gossen | Meßverfahren und Schaltungsanordnung zur Ermittlung des Auslösestroms von FI-Schaltern |
DE19529474C1 (de) * | 1995-08-11 | 1997-01-23 | Aeg Sensorsysteme Gmbh | Verfahren und Anordnung zur automatischen Überwachung von Fehlerstromschutzschaltern |
-
1996
- 1996-05-15 DE DE19619629A patent/DE19619629C1/de not_active Expired - Fee Related
-
1997
- 1997-05-14 IT IT97TO000405A patent/IT1294395B1/it active IP Right Grant
- 1997-05-15 FR FR9705986A patent/FR2748869B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE19619629C1 (de) | 1997-10-09 |
ITTO970405A0 (it) | 1997-05-14 |
FR2748869A1 (fr) | 1997-11-21 |
FR2748869B1 (fr) | 2000-05-05 |
ITTO970405A1 (it) | 1998-11-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |