IT8047655A0 - Interruttore di sicurezza sensibile alla corrente continua per correnti di dispersione - Google Patents
Interruttore di sicurezza sensibile alla corrente continua per correnti di dispersioneInfo
- Publication number
- IT8047655A0 IT8047655A0 IT8047655A IT4765580A IT8047655A0 IT 8047655 A0 IT8047655 A0 IT 8047655A0 IT 8047655 A IT8047655 A IT 8047655A IT 4765580 A IT4765580 A IT 4765580A IT 8047655 A0 IT8047655 A0 IT 8047655A0
- Authority
- IT
- Italy
- Prior art keywords
- direct current
- safety switch
- leakage currents
- switch sensitive
- sensitive
- Prior art date
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Resistance Heating (AREA)
- Breakers (AREA)
- Control Of Temperature (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT43379A AT357625B (de) | 1979-01-22 | 1979-01-22 | Gleichstromsensitiver fehlerstromschutzschalter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8047655A0 true IT8047655A0 (it) | 1980-01-21 |
| IT1207084B IT1207084B (it) | 1989-05-17 |
Family
ID=3490474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT8047655A IT1207084B (it) | 1979-01-22 | 1980-01-21 | Interruttore di sicurezza sensibile alla corrente continua per correnti di dispersione |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT357625B (it) |
| BE (1) | BE877057A (it) |
| CH (1) | CH645758A5 (it) |
| ES (1) | ES481662A1 (it) |
| FR (1) | FR2447093A1 (it) |
| GB (1) | GB2045023B (it) |
| IT (1) | IT1207084B (it) |
| NL (1) | NL7905943A (it) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4547658A (en) * | 1984-06-13 | 1985-10-15 | Sunbeam Corporation | Multiple heat fusing wire circuit for underblankets |
| GB2174853A (en) * | 1985-03-27 | 1986-11-12 | Tech Mirage Ind Limited | Safety circuit for electric heater |
| US4707686A (en) * | 1986-04-03 | 1987-11-17 | General Electric Company | Over temperature sensing system for power cables |
| US4677281A (en) * | 1986-11-04 | 1987-06-30 | Fieldcrest Cannon, Inc. | Electric heating apparatus with integrated solid state comfort control and overheat protection |
| GB2334389B (en) * | 1998-02-16 | 2002-03-06 | Dreamland Appliances Ltd | Electrically heated panel apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1763366A1 (de) * | 1968-05-15 | 1972-03-30 | Ritz Messwandler Gmbh | Kompensierter Stromwandler-Kern fuer den schnellen Schutz |
| DE1803811A1 (de) * | 1968-10-18 | 1970-06-04 | Ritz Messwandler Gmbh | Zwischen-Stromwandler fuer den >>Schnellen Schutz<< |
| CH600551A5 (en) * | 1976-09-18 | 1978-06-15 | Maier Carl Cmc & Cie Ag | Release for electrical switch |
-
1979
- 1979-01-22 AT AT43379A patent/AT357625B/de not_active IP Right Cessation
- 1979-06-18 BE BE0/195804A patent/BE877057A/xx not_active IP Right Cessation
- 1979-06-19 ES ES481662A patent/ES481662A1/es not_active Expired
- 1979-08-02 NL NL7905943A patent/NL7905943A/nl not_active Application Discontinuation
- 1979-09-05 CH CH825979A patent/CH645758A5/de not_active IP Right Cessation
- 1979-09-07 FR FR7922421A patent/FR2447093A1/fr active Pending
-
1980
- 1980-01-21 IT IT8047655A patent/IT1207084B/it active
- 1980-03-05 GB GB8007579A patent/GB2045023B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ATA43379A (de) | 1979-12-15 |
| GB2045023B (en) | 1983-02-23 |
| ES481662A1 (es) | 1980-01-16 |
| NL7905943A (nl) | 1980-07-24 |
| FR2447093A1 (fr) | 1980-08-14 |
| AT357625B (de) | 1980-07-25 |
| BE877057A (fr) | 1979-10-15 |
| CH645758A5 (de) | 1984-10-15 |
| IT1207084B (it) | 1989-05-17 |
| GB2045023A (en) | 1980-10-22 |
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