IT8025642A0 - Correnti di dispersione eprocedimento per controllare un dispositivo per effettuare detto dispositivo di protezione contro procedimento. - Google Patents
Correnti di dispersione eprocedimento per controllare un dispositivo per effettuare detto dispositivo di protezione contro procedimento.Info
- Publication number
- IT8025642A0 IT8025642A0 IT8025642A IT2564280A IT8025642A0 IT 8025642 A0 IT8025642 A0 IT 8025642A0 IT 8025642 A IT8025642 A IT 8025642A IT 2564280 A IT2564280 A IT 2564280A IT 8025642 A0 IT8025642 A0 IT 8025642A0
- Authority
- IT
- Italy
- Prior art keywords
- procedure
- controling
- leakage currents
- protection device
- device against
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
- H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
-
- 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
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
-
- 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
-
- 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
-
- 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 imbalance 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 imbalance for other protection or monitoring reasons or remote control the main function being self testing of the device
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2943725A DE2943725C2 (de) | 1979-10-30 | 1979-10-30 | Verfahren zur Prüfung einer Fehlerstromschutzeinrichtung mit einem Summenstromwandler und Einrichtungen zur Durchführung des Verfahrens |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8025642A0 true IT8025642A0 (it) | 1980-10-29 |
IT1148731B IT1148731B (it) | 1986-12-03 |
Family
ID=6084686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT25642/80A IT1148731B (it) | 1979-10-30 | 1980-10-29 | Procedimento per controllare un dispositivo di protezione contro correnti di dispersione e dispositivo per effettuare detto procedimento |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2943725C2 (it) |
IT (1) | IT1148731B (it) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2565430B1 (fr) * | 1984-06-04 | 1990-12-28 | Shinko Electric Co Ltd | Circuit detectant une panne de relais |
DE3537140A1 (de) * | 1985-10-18 | 1987-04-23 | Turck Werner Kg | Selbstueberwachender fehlerstromschutzschalter |
DE3634802A1 (de) * | 1986-10-13 | 1988-04-21 | Bbc Brown Boveri & Cie | Einrichtung zur selektiven erfassung eines erdschlusses im rotorkreis einer elektrischen maschine |
DE4112169C2 (de) * | 1991-04-13 | 1994-03-10 | Doepke & Co Schaltgeraetefabri | Fehlerstrom-Überwachungseinrichtung |
DE4220569A1 (de) * | 1992-06-24 | 1994-01-05 | Abb Patent Gmbh | Prüfkreisanordnung für einen Fehlerstromschutzschalter |
US5858547A (en) * | 1994-07-06 | 1999-01-12 | Alliedsignal, Inc. | Novolac polymer planarization films for microelectronic structures |
DE102004024100A1 (de) * | 2004-05-14 | 2005-12-15 | Siemens Ag | Prüfeinrichtung für einen Fehlerstromschutzschalter |
DE102010032031A1 (de) * | 2010-07-21 | 2012-01-26 | Siemens Aktiengesellschaft | Schalter, insbesondere Leistungsschalter für Niederspannungen |
DE102014210589A1 (de) | 2014-06-04 | 2015-12-17 | Siemens Aktiengesellschaft | Fehlerstromschutzanordnung, Ladevorrichtung sowie Verfahren zum Überprüfen einer Fehlerstromschutzeinrichtung |
DE102017217267A1 (de) | 2017-09-28 | 2018-07-26 | Siemens Aktiengesellschaft | Fehlerstromschutzschalter und Prüfstromkreis |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2555221C2 (de) * | 1975-12-09 | 1984-10-25 | Brown, Boveri & Cie Ag, 6800 Mannheim | Verfahren zur Erfassung von Fehlerströmen beliebiger Art |
DE7613154U1 (de) * | 1976-04-27 | 1976-10-07 | Brown, Boveri & Cie Ag, 6800 Mannheim | Prüfeinrichtung für elektrische In-8ta»atlonsschalter, Insbesondere Fehlerstromschutzschalter |
FR2377089A1 (fr) * | 1977-01-06 | 1978-08-04 | Chauvin Arnoux Sa | Dispositif engendrant une rampe de courant alternatif pour la verification du declenchement d'un disjoncteur |
DE2756012C3 (de) * | 1977-12-15 | 1980-09-04 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Gerät zur Prüfung der Maßnahme Fehlerstromschutzschaltung |
-
1979
- 1979-10-30 DE DE2943725A patent/DE2943725C2/de not_active Expired
-
1980
- 1980-10-29 IT IT25642/80A patent/IT1148731B/it active
Also Published As
Publication number | Publication date |
---|---|
IT1148731B (it) | 1986-12-03 |
DE2943725C2 (de) | 1984-07-19 |
DE2943725A1 (de) | 1981-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5529297A (en) | Overvoltage protecting device | |
SE7709751L (sv) | Avbrottssekra overspenningsskydd | |
SE7810779L (sv) | Skyddsforpackning | |
IT1094509B (it) | Dispositivo di protezione contro le sovratensioni | |
NO800061L (no) | Anode-enhet for katodisk beskyttelse. | |
JPS5471419A (en) | Leakage protective device | |
SE8001519L (sv) | Vermestralskydd | |
SE423727B (sv) | Skyddsbeleggning for stalytor | |
IT8025642A0 (it) | Correnti di dispersione eprocedimento per controllare un dispositivo per effettuare detto dispositivo di protezione contro procedimento. | |
GB2017434B (en) | Earth leakage protection | |
NO147769C (no) | Beskyttelsesanordning for leddaksel. | |
SE7907706L (sv) | Skyddsanordning for propeller | |
SE7803684L (sv) | Overspenningsskydd | |
NO784210L (no) | Beskyttelseskrave. | |
AT366426B (de) | Schuetzen | |
SE7902726L (sv) | Reaktorsprickskydd | |
IT1115316B (it) | Dispositivo di protezione contro le fughe di gas | |
SE7807092L (sv) | Ventilavledare for overspenningsskydd | |
DK433380A (da) | Overspaendingsbeskyttelsesindretning | |
IT8026195A0 (it) | Custodia protettiva per videodischi. | |
SE7805024L (sv) | Overspenningsskydd for teleendamal | |
SE7501917L (sv) | Skyddsoverdrag, serskilt nackskydd | |
ES244443Y (es) | Disposicion de proteccion balistica. | |
BR7901635A (pt) | Dispositivo de para-raios | |
SE7805722L (sv) | Trefasoverspenningsskydd |