ZA200400089B - Earth leakage protection device and electrical switchgear unit comprising such a device. - Google Patents
Earth leakage protection device and electrical switchgear unit comprising such a device.Info
- Publication number
- ZA200400089B ZA200400089B ZA200400089A ZA200400089A ZA200400089B ZA 200400089 B ZA200400089 B ZA 200400089B ZA 200400089 A ZA200400089 A ZA 200400089A ZA 200400089 A ZA200400089 A ZA 200400089A ZA 200400089 B ZA200400089 B ZA 200400089B
- Authority
- ZA
- South Africa
- Prior art keywords
- earth leakage
- leakage protection
- electrical switchgear
- switchgear unit
- protection device
- 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)
- Emergency Protection Circuit Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0300806A FR2850495B1 (fr) | 2003-01-24 | 2003-01-24 | Dispositif de protection differentielle et appareil de coupure electrique comportant un tel dispositif |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200400089B true ZA200400089B (en) | 2004-07-26 |
Family
ID=32525005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200400089A ZA200400089B (en) | 2003-01-24 | 2004-01-07 | Earth leakage protection device and electrical switchgear unit comprising such a device. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7009825B2 (xx) |
| EP (1) | EP1441429A1 (xx) |
| CN (1) | CN100414798C (xx) |
| AU (1) | AU2004200271B8 (xx) |
| FR (1) | FR2850495B1 (xx) |
| HK (1) | HK1064221A1 (xx) |
| ZA (1) | ZA200400089B (xx) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0614125D0 (en) * | 2006-07-15 | 2006-08-23 | Deepstream Technologies Ltd | Method and apparatus of detecting and compensating for DC residual fault currents on electrical systems |
| US8606218B2 (en) * | 2008-07-03 | 2013-12-10 | Centurylink Intellectual Property Llc | System and method for handling emergency image messaging |
| FR2954613B1 (fr) * | 2009-12-17 | 2013-06-07 | Schneider Electric Ind Sas | Dispositif et procede de protection differentielle et appareil electrique comportant un tel dispositif |
| CN101752831B (zh) * | 2009-12-25 | 2015-03-25 | 上海复旦微电子集团股份有限公司 | 电气开关装置及其漏电保护器 |
| UA99796C2 (ru) * | 2011-09-19 | 2012-09-25 | Частное Акционерное Общество "Донецксталь" - Металлургический Завод" | Устройство защиты от токов утечки в шахтных электрических сетях |
| FR3008242B1 (fr) | 2013-07-05 | 2015-09-04 | Schneider Electric Ind Sas | Dispositif de protection differentielle pour un appareil de coupure, et appareil de coupure electrique comportant un tel dispositif |
| KR101864624B1 (ko) * | 2014-07-11 | 2018-06-07 | 엘에스산전 주식회사 | 누전 차단기용 누전 결정 회로 |
| JP6708463B2 (ja) * | 2016-04-01 | 2020-06-10 | ローム株式会社 | 漏電検出回路および漏電遮断器 |
| KR102485879B1 (ko) | 2016-04-28 | 2023-01-06 | 엘에스일렉트릭(주) | 누전차단기 |
| JP6501976B2 (ja) * | 2016-07-04 | 2019-04-17 | 三菱電機株式会社 | 駅舎電源装置および帯電検知方法 |
| US10895592B2 (en) | 2017-03-24 | 2021-01-19 | Rosemount Aerospace Inc. | Probe heater remaining useful life determination |
| US11060992B2 (en) | 2017-03-24 | 2021-07-13 | Rosemount Aerospace Inc. | Probe heater remaining useful life determination |
| US10914777B2 (en) | 2017-03-24 | 2021-02-09 | Rosemount Aerospace Inc. | Probe heater remaining useful life determination |
| CN107294061B (zh) * | 2017-06-26 | 2019-07-26 | 北京无线电测量研究所 | 一种高压电源漏电的保护方法及装置 |
| FR3073331A1 (fr) * | 2017-11-07 | 2019-05-10 | Hager-Electro Sas | Dispositif de protection differentielle avec filtrage de la porteuse du signal d'excitation |
| FR3073330A1 (fr) * | 2017-11-07 | 2019-05-10 | Hager-Electro Sas | Dispositif de protection differentielle utilisant la tension moyenne redressee |
| US11061080B2 (en) | 2018-12-14 | 2021-07-13 | Rosemount Aerospace Inc. | Real time operational leakage current measurement for probe heater PHM and prediction of remaining useful life |
| US10962580B2 (en) | 2018-12-14 | 2021-03-30 | Rosemount Aerospace Inc. | Electric arc detection for probe heater PHM and prediction of remaining useful life |
| PL3700038T3 (pl) * | 2019-02-22 | 2023-01-09 | Future Systems Besitz Gmbh | Urządzenie do przełączania i ochrony obciążenia |
| US11639954B2 (en) * | 2019-05-29 | 2023-05-02 | Rosemount Aerospace Inc. | Differential leakage current measurement for heater health monitoring |
| US11472562B2 (en) | 2019-06-14 | 2022-10-18 | Rosemount Aerospace Inc. | Health monitoring of an electrical heater of an air data probe |
| US11930563B2 (en) | 2019-09-16 | 2024-03-12 | Rosemount Aerospace Inc. | Monitoring and extending heater life through power supply polarity switching |
| US11293995B2 (en) | 2020-03-23 | 2022-04-05 | Rosemount Aerospace Inc. | Differential leakage current measurement for heater health monitoring |
| US11630140B2 (en) | 2020-04-22 | 2023-04-18 | Rosemount Aerospace Inc. | Prognostic health monitoring for heater |
| FR3111746B1 (fr) * | 2020-06-23 | 2022-06-03 | Hager Electro Sas | Procédé de détection de courants de fuite ou de défaut dans une installation électrique à partir d’un appareil de protection assurant au moins une protection différentielle et un tel appareil convenant à la mise en œuvre dudit procédé |
| FR3114924A1 (fr) * | 2020-10-02 | 2022-04-08 | Airbus Operations | Dispositif différentiel à courant résiduel pour la protection d’une installation électrique à tension continue. |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3723814A (en) * | 1972-05-01 | 1973-03-27 | T Gross | Phase-sensitive ground fault protective systems |
| US4024435A (en) * | 1974-12-05 | 1977-05-17 | Gross Thomas A O | Ground fault protective systems with variable rate integration of fault signals |
| US4370692A (en) * | 1978-10-16 | 1983-01-25 | General Electric Company | Ground fault protective system requiring reduced current-interrupting capability |
| EP0020080A1 (en) * | 1979-05-29 | 1980-12-10 | Trident Equipment Limited | Improvements relating to earth leakage protection devices |
| FR2481851A1 (fr) * | 1980-04-30 | 1981-11-06 | Merlin Gerin | Dispositif de protection differentielle sensible a un courant unidirectionnel |
| CN87203578U (zh) * | 1987-03-10 | 1988-03-02 | 浙江省桐乡电子控制设备厂 | 电子漏电保护器 |
| CN87212552U (zh) * | 1987-12-05 | 1988-12-07 | 上海市燎原电器总厂二分厂 | 漏电保护电源插头 |
| US5224007A (en) * | 1990-12-27 | 1993-06-29 | Raytheon Company | Current window detection circuit |
| US5425106A (en) * | 1993-06-25 | 1995-06-13 | Hda Entertainment, Inc. | Integrated circuit for audio enhancement system |
| EP0963024A1 (de) * | 1998-05-14 | 1999-12-08 | Siemens Aktiengesellschaft | Schutzschaltgeraet |
-
2003
- 2003-01-24 FR FR0300806A patent/FR2850495B1/fr not_active Expired - Lifetime
- 2003-12-17 US US10/736,512 patent/US7009825B2/en not_active Expired - Lifetime
-
2004
- 2004-01-07 ZA ZA200400089A patent/ZA200400089B/xx unknown
- 2004-01-09 CN CNB2004100015056A patent/CN100414798C/zh not_active Expired - Lifetime
- 2004-01-20 EP EP04354002A patent/EP1441429A1/fr not_active Ceased
- 2004-01-23 AU AU2004200271A patent/AU2004200271B8/en not_active Expired
- 2004-09-13 HK HK04106922A patent/HK1064221A1/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU2004200271B8 (en) | 2008-02-28 |
| US20040145841A1 (en) | 2004-07-29 |
| CN1518181A (zh) | 2004-08-04 |
| US7009825B2 (en) | 2006-03-07 |
| EP1441429A1 (fr) | 2004-07-28 |
| AU2004200271A1 (en) | 2004-08-12 |
| FR2850495B1 (fr) | 2005-06-03 |
| HK1064221A1 (en) | 2005-01-21 |
| FR2850495A1 (fr) | 2004-07-30 |
| CN100414798C (zh) | 2008-08-27 |
| AU2004200271B2 (en) | 2008-02-14 |
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