CH573673A5 - - Google Patents
Info
- Publication number
- CH573673A5 CH573673A5 CH1670773A CH1670773A CH573673A5 CH 573673 A5 CH573673 A5 CH 573673A5 CH 1670773 A CH1670773 A CH 1670773A CH 1670773 A CH1670773 A CH 1670773A CH 573673 A5 CH573673 A5 CH 573673A5
- Authority
- CH
- Switzerland
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
- H02H3/38—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
- H02H3/385—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 using at least one homopolar quantity
-
- 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 |
|---|---|---|---|
| GB5483472A GB1422346A (US06724976-20040420-M00002.png) | 1972-11-28 | 1972-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH573673A5 true CH573673A5 (US06724976-20040420-M00002.png) | 1976-03-15 |
Family
ID=10472213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1670773A CH573673A5 (US06724976-20040420-M00002.png) | 1972-11-28 | 1973-11-28 |
Country Status (7)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079504A1 (en) * | 1981-11-13 | 1983-05-25 | Westinghouse Electric Corporation | Protective relaying methods and apparatus |
| AT391230B (de) * | 1986-08-20 | 1990-09-10 | Elin Union Ag | Einrichtung zur erfassung der nulldurchgaenge |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN143431B (US06724976-20040420-M00002.png) * | 1975-05-14 | 1977-11-26 | Westinghouse Electric Corp | |
| CH600644A5 (US06724976-20040420-M00002.png) * | 1975-06-19 | 1978-06-30 | Bbc Brown Boveri & Cie | |
| GB1526412A (en) * | 1975-07-22 | 1978-09-27 | Gen Electric Co Ltd | Directional relays |
| US4092690A (en) * | 1977-01-31 | 1978-05-30 | General Electric Company | Protective relay circuit providing a combined distance and overcurrent function |
| CH612046A5 (US06724976-20040420-M00002.png) * | 1977-04-01 | 1979-06-29 | Bbc Brown Boveri & Cie | |
| US4342064A (en) * | 1978-02-21 | 1982-07-27 | General Electric Company | Static distance relays with improved polarizing signal |
| US4161011A (en) * | 1978-02-21 | 1979-07-10 | General Electric Company | Ground distance relay employing phase comparator measurement |
| CN101145683B (zh) * | 2007-10-31 | 2010-09-29 | 李志学 | 低压电网剩余电流控制装置 |
| CN104393576B (zh) * | 2012-05-31 | 2017-09-29 | 国网浙江省电力公司湖州供电公司 | 一种低压配电柜安全防护方法 |
| CN102769277B (zh) * | 2012-05-31 | 2015-01-28 | 德清县供电局 | 一种低压配电柜安全防护装置改进结构 |
| CN104078948B (zh) * | 2014-07-15 | 2016-10-19 | 国家电网公司 | 基于短数据窗的输电线路正序电流分相差动保护方法 |
| CN113361221A (zh) * | 2021-06-22 | 2021-09-07 | 广东电网有限责任公司 | 小电阻接地系统两点同相接地故障分析方法及相关装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3024389A (en) * | 1957-06-07 | 1962-03-06 | English Electric Co Ltd | Three-phase protective relay systems |
| GB1021502A (en) * | 1961-03-03 | 1966-03-02 | English Electric Co Ltd | Improvements in and relating to electrical protective relay systems |
| FR1316391A (fr) * | 1962-03-01 | 1963-01-25 | English Electric Co Ltd | Système à relais de protection pour circuits électriques triphasés |
| GB1172536A (en) * | 1966-08-31 | 1969-12-03 | English Electric Co Ltd | Improvements in Electrical Protective Relays |
| FR1501814A (fr) * | 1966-09-12 | 1967-11-18 | Compteurs Comp D | Dispositif permettant la détection ainsi que la mesure de distance des défauts à la terre dans un réseau triphasé avec neutre mise à la terre |
| FR2058166A1 (US06724976-20040420-M00002.png) * | 1969-08-11 | 1971-05-28 | Compteurs Comp D | |
| JPS5512817B1 (US06724976-20040420-M00002.png) * | 1970-11-19 | 1980-04-04 | ||
| CH525578A (de) * | 1970-12-14 | 1972-07-15 | Bbc Brown Boveri & Cie | Distanzrelais für Mehrphasennetze |
-
1972
- 1972-11-28 GB GB5483472A patent/GB1422346A/en not_active Expired
-
1973
- 1973-11-23 IN IN2582/CAL/73A patent/IN140601B/en unknown
- 1973-11-27 SE SE7316021A patent/SE395331B/xx unknown
- 1973-11-27 FR FR7342204A patent/FR2208223B1/fr not_active Expired
- 1973-11-27 DE DE2358955A patent/DE2358955A1/de not_active Withdrawn
- 1973-11-27 US US419289A patent/US3898530A/en not_active Expired - Lifetime
- 1973-11-28 CH CH1670773A patent/CH573673A5/xx not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0079504A1 (en) * | 1981-11-13 | 1983-05-25 | Westinghouse Electric Corporation | Protective relaying methods and apparatus |
| AT391230B (de) * | 1986-08-20 | 1990-09-10 | Elin Union Ag | Einrichtung zur erfassung der nulldurchgaenge |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1422346A (US06724976-20040420-M00002.png) | 1976-01-28 |
| US3898530A (en) | 1975-08-05 |
| SE395331B (sv) | 1977-08-08 |
| DE2358955A1 (de) | 1974-05-30 |
| FR2208223B1 (US06724976-20040420-M00002.png) | 1978-02-24 |
| FR2208223A1 (US06724976-20040420-M00002.png) | 1974-06-21 |
| IN140601B (US06724976-20040420-M00002.png) | 1976-12-11 |
| AU6285873A (en) | 1975-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |