SE395331B - Anordning for att vid flerfas elektriska kraftledningar konstatera jordfel - Google Patents
Anordning for att vid flerfas elektriska kraftledningar konstatera jordfelInfo
- Publication number
- SE395331B SE395331B SE7316021A SE7316021A SE395331B SE 395331 B SE395331 B SE 395331B SE 7316021 A SE7316021 A SE 7316021A SE 7316021 A SE7316021 A SE 7316021A SE 395331 B SE395331 B SE 395331B
- Authority
- SE
- Sweden
- Prior art keywords
- power lines
- phase power
- detecting earth
- errors
- earth errors
- 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
- H02H3/38—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 (sv) | 1972-11-28 | 1972-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE395331B true SE395331B (sv) | 1977-08-08 |
Family
ID=10472213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7316021A SE395331B (sv) | 1972-11-28 | 1973-11-27 | Anordning for att vid flerfas elektriska kraftledningar konstatera jordfel |
Country Status (7)
Country | Link |
---|---|
US (1) | US3898530A (sv) |
CH (1) | CH573673A5 (sv) |
DE (1) | DE2358955A1 (sv) |
FR (1) | FR2208223B1 (sv) |
GB (1) | GB1422346A (sv) |
IN (1) | IN140601B (sv) |
SE (1) | SE395331B (sv) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN143431B (sv) * | 1975-05-14 | 1977-11-26 | Westinghouse Electric Corp | |
CH600644A5 (sv) * | 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 (sv) * | 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 |
US4398232A (en) * | 1981-11-13 | 1983-08-09 | Westinghouse Electric Corp. | Protective relaying methods and apparatus |
AT391230B (de) * | 1986-08-20 | 1990-09-10 | Elin Union Ag | Einrichtung zur erfassung der nulldurchgaenge |
CN101145683B (zh) * | 2007-10-31 | 2010-09-29 | 李志学 | 低压电网剩余电流控制装置 |
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 |
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 |
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***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 (sv) * | 1969-08-11 | 1971-05-28 | Compteurs Comp D | |
JPS5512817B1 (sv) * | 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/sv unknown
- 1973-11-27 FR FR7342204A patent/FR2208223B1/fr not_active Expired
- 1973-11-27 US US419289A patent/US3898530A/en not_active Expired - Lifetime
- 1973-11-27 DE DE2358955A patent/DE2358955A1/de not_active Withdrawn
- 1973-11-28 CH CH1670773A patent/CH573673A5/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IN140601B (sv) | 1976-12-11 |
FR2208223B1 (sv) | 1978-02-24 |
FR2208223A1 (sv) | 1974-06-21 |
CH573673A5 (sv) | 1976-03-15 |
GB1422346A (sv) | 1976-01-28 |
AU6285873A (en) | 1975-05-29 |
US3898530A (en) | 1975-08-05 |
DE2358955A1 (de) | 1974-05-30 |
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