IT1017863B - Dispositivo di protezione diffe renziale per impianti elettrici - Google Patents
Dispositivo di protezione diffe renziale per impianti elettriciInfo
- Publication number
- IT1017863B IT1017863B IT2592774A IT2592774A IT1017863B IT 1017863 B IT1017863 B IT 1017863B IT 2592774 A IT2592774 A IT 2592774A IT 2592774 A IT2592774 A IT 2592774A IT 1017863 B IT1017863 B IT 1017863B
- Authority
- IT
- Italy
- Prior art keywords
- protection device
- electrical systems
- different protection
- different
- systems
- 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
- H02H3/28—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
- H02H3/283—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus and taking into account saturation of current transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732339931 DE2339931C3 (de) | 1973-08-03 | Differentlalschutzeinrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1017863B true IT1017863B (it) | 1977-08-10 |
Family
ID=5889107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT2592774A IT1017863B (it) | 1973-08-03 | 1974-08-02 | Dispositivo di protezione diffe renziale per impianti elettrici |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5044442A (fr) |
| AT (1) | AT335553B (fr) |
| BE (1) | BE818449A (fr) |
| CH (1) | CH573677A5 (fr) |
| IT (1) | IT1017863B (fr) |
| NL (1) | NL7409811A (fr) |
| SE (1) | SE394776B (fr) |
-
1974
- 1974-05-27 AT AT436074A patent/AT335553B/de not_active IP Right Cessation
- 1974-07-19 SE SE7409444A patent/SE394776B/xx not_active IP Right Cessation
- 1974-07-19 NL NL7409811A patent/NL7409811A/xx not_active Application Discontinuation
- 1974-07-22 CH CH1004174A patent/CH573677A5/xx not_active IP Right Cessation
- 1974-08-02 BE BE147252A patent/BE818449A/fr not_active IP Right Cessation
- 1974-08-02 IT IT2592774A patent/IT1017863B/it active
- 1974-08-02 JP JP49089405A patent/JPS5044442A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5044442A (fr) | 1975-04-21 |
| NL7409811A (nl) | 1975-02-05 |
| SE394776B (sv) | 1977-07-04 |
| SE7409444L (fr) | 1975-02-04 |
| DE2339931A1 (de) | 1975-02-20 |
| DE2339931B2 (de) | 1975-10-30 |
| BE818449A (fr) | 1974-12-02 |
| AT335553B (de) | 1977-03-25 |
| ATA436074A (de) | 1976-07-15 |
| CH573677A5 (fr) | 1976-03-15 |
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