JPS4740031A - - Google Patents
Info
- Publication number
- JPS4740031A JPS4740031A JP4031972A JP4031972A JPS4740031A JP S4740031 A JPS4740031 A JP S4740031A JP 4031972 A JP4031972 A JP 4031972A JP 4031972 A JP4031972 A JP 4031972A JP S4740031 A JPS4740031 A JP S4740031A
- Authority
- JP
- Japan
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/30—Staggered disconnection
-
- 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
- H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
- H02H3/382—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 both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712120361 DE2120361C3 (de) | 1971-04-22 | 1971-04-22 | Distanzschutzanordnung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4740031A true JPS4740031A (it) | 1972-12-09 |
| JPS5223055B2 JPS5223055B2 (it) | 1977-06-22 |
Family
ID=5805967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4031972A Expired JPS5223055B2 (it) | 1971-04-22 | 1972-04-21 |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5223055B2 (it) |
| CH (1) | CH534445A (it) |
| DE (1) | DE2120361C3 (it) |
| FR (1) | FR2134024B1 (it) |
| GB (1) | GB1390195A (it) |
| IT (1) | IT951847B (it) |
| SE (1) | SE385524B (it) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4985691A (it) * | 1972-12-20 | 1974-08-16 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH635710A5 (de) * | 1979-01-03 | 1983-04-15 | Bbc Brown Boveri & Cie | Einrichtung fuer den fehlerrichtungs-vergleichsschutz fuer eine leitung eines elektrischen netzes. |
| JPS57131592U (it) * | 1981-02-05 | 1982-08-16 |
-
1971
- 1971-04-22 DE DE19712120361 patent/DE2120361C3/de not_active Expired
-
1972
- 1972-02-21 CH CH245872A patent/CH534445A/de not_active IP Right Cessation
- 1972-04-18 IT IT2325972A patent/IT951847B/it active
- 1972-04-18 GB GB1790372A patent/GB1390195A/en not_active Expired
- 1972-04-21 SE SE526072A patent/SE385524B/xx unknown
- 1972-04-21 JP JP4031972A patent/JPS5223055B2/ja not_active Expired
- 1972-04-21 FR FR7214195A patent/FR2134024B1/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4985691A (it) * | 1972-12-20 | 1974-08-16 | ||
| JPS5215156B2 (it) * | 1972-12-20 | 1977-04-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2134024B1 (it) | 1975-06-20 |
| DE2120361B2 (de) | 1977-08-04 |
| IT951847B (it) | 1973-07-10 |
| SE385524B (sv) | 1976-07-05 |
| DE2120361A1 (de) | 1972-11-02 |
| CH534445A (de) | 1973-02-28 |
| GB1390195A (en) | 1975-04-09 |
| DE2120361C3 (de) | 1978-04-06 |
| JPS5223055B2 (it) | 1977-06-22 |
| FR2134024A1 (it) | 1972-12-01 |