IN156517B - - Google Patents
Info
- Publication number
- IN156517B IN156517B IN1058/CAL/82A IN1058CA1982A IN156517B IN 156517 B IN156517 B IN 156517B IN 1058CA1982 A IN1058CA1982 A IN 1058CA1982A IN 156517 B IN156517 B IN 156517B
- Authority
- IN
- India
Links
Classifications
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Locating Faults (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH609481 | 1981-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN156517B true IN156517B (US07223432-20070529-C00017.png) | 1985-08-24 |
Family
ID=4304172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1058/CAL/82A IN156517B (US07223432-20070529-C00017.png) | 1981-09-22 | 1982-09-13 |
Country Status (6)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2690573B1 (fr) * | 1992-04-28 | 1997-05-09 | Merlin Gerin | Dispositif de controle de defaut homopolaire dans un reseau de distribution electrique. |
| FR2692086B1 (fr) * | 1992-06-03 | 1995-10-06 | Electricite De France | Procede et dispositif de protection selective contre les defauts a la terre d'un reseau electrique. |
| US5349490A (en) * | 1992-10-15 | 1994-09-20 | Schweitzer Engineering Laboratories, Inc. | Negative sequence directional element for a relay useful in protecting power transmission lines |
| US6869282B2 (en) * | 2002-03-04 | 2005-03-22 | Robert P. Carmichael | Implant positioning device and method |
| CN103605012B (zh) * | 2013-10-23 | 2016-08-24 | 国家电网公司 | 一种励磁系统试验小车 |
| CN110470980B (zh) * | 2019-08-15 | 2020-10-16 | 电子科技大学 | 基于遗传算法的模拟电路故障特征范围确定方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US409269A (en) * | 1889-08-20 | Nahan bros | ||
| CH402137A (de) * | 1963-06-28 | 1965-11-15 | Bbc Brown Boveri & Cie | Richtungsrelais |
| GB1096413A (en) * | 1964-04-28 | 1967-12-29 | English Electric Co Ltd | Electrical protective relays |
| SU480134A1 (ru) * | 1973-05-03 | 1975-08-05 | Всесоюзный Государственный Проектно-Изыскательский И Научно-Исследовательский Институт "Энергосетьпроект" | Реле сопротивлени |
| CH613570A5 (US07223432-20070529-C00017.png) * | 1976-03-25 | 1979-09-28 | Bbc Brown Boveri & Cie |
-
1982
- 1982-09-06 EP EP82201094A patent/EP0075348B1/de not_active Expired
- 1982-09-06 DE DE8282201094T patent/DE3265428D1/de not_active Expired
- 1982-09-13 IN IN1058/CAL/82A patent/IN156517B/en unknown
- 1982-09-20 BR BR8205496A patent/BR8205496A/pt not_active IP Right Cessation
- 1982-09-20 US US06/420,286 patent/US4458285A/en not_active Expired - Lifetime
- 1982-09-22 CA CA000411975A patent/CA1194549A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0075348B1 (de) | 1985-08-14 |
| CA1194549A (en) | 1985-10-01 |
| EP0075348A1 (de) | 1983-03-30 |
| US4458285A (en) | 1984-07-03 |
| DE3265428D1 (en) | 1985-09-19 |
| BR8205496A (pt) | 1983-08-23 |
