JPS6156684B2 - - Google Patents
Info
- Publication number
- JPS6156684B2 JPS6156684B2 JP54065682A JP6568279A JPS6156684B2 JP S6156684 B2 JPS6156684 B2 JP S6156684B2 JP 54065682 A JP54065682 A JP 54065682A JP 6568279 A JP6568279 A JP 6568279A JP S6156684 B2 JPS6156684 B2 JP S6156684B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- current
- instantaneous
- overcurrent relay
- voltage
- Prior art date
- 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.)
- Expired
Links
- 238000006243 chemical reaction Methods 0.000 claims description 35
- 238000001514 detection method Methods 0.000 claims description 10
- 230000009466 transformation Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 8
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
- H02H1/046—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks upon detecting saturation of current transformers
-
- 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
- H02H3/08—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 excess current
- H02H3/093—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 excess current with timing means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Dc-Dc Converters (AREA)
- Thermistors And Varistors (AREA)
- Protection Of Generators And Motors (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6568279A JPS55157924A (en) | 1979-05-29 | 1979-05-29 | Overcurrent relay |
DE8080102952T DE3069057D1 (en) | 1979-05-29 | 1980-05-27 | Overcurrent protective relais |
EP80102952A EP0019904B1 (de) | 1979-05-29 | 1980-05-27 | Überstromschutzrelais |
AT80102952T ATE9192T1 (de) | 1979-05-29 | 1980-05-27 | Ueberstromschutzrelais. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6568279A JPS55157924A (en) | 1979-05-29 | 1979-05-29 | Overcurrent relay |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55157924A JPS55157924A (en) | 1980-12-09 |
JPS6156684B2 true JPS6156684B2 (US20100012521A1-20100121-C00001.png) | 1986-12-03 |
Family
ID=13294013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6568279A Granted JPS55157924A (en) | 1979-05-29 | 1979-05-29 | Overcurrent relay |
Country Status (4)
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4685024A (en) * | 1985-11-19 | 1987-08-04 | General Electric Company | Overcurrent circuit interrupter using RMS sampling |
JPH0714251B2 (ja) * | 1987-08-04 | 1995-02-15 | 三菱電機株式会社 | 回路しや断器 |
US4839770A (en) * | 1988-01-25 | 1989-06-13 | S&C Electric Company | Control circuit with validity-determining arrangement |
DE102006011713A1 (de) * | 2006-03-14 | 2007-10-04 | Moeller Gmbh | Elektrische Auslöseeinheit für einen Motorschutzschalter eines Elektromotors |
CN113922499A (zh) * | 2021-09-15 | 2022-01-11 | 国网重庆市电力公司营销服务中心 | 一种发电厂电流互感器变比自适应切换方法与系统 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3114078A (en) * | 1956-06-05 | 1963-12-10 | Bbc Brown Boveri & Cie | Amplifier apparatus for measuring currents and/or voltages on high voltage transmission lines |
US3299322A (en) * | 1965-08-09 | 1967-01-17 | Mechanical Products Inc | Electronic circuit protector |
US3555354A (en) * | 1969-03-11 | 1971-01-12 | Gen Electric | Alternating current circuit breaker having a control for timing opening relative to the current wave |
FR2134287B1 (US20100012521A1-20100121-C00001.png) * | 1971-04-30 | 1974-03-08 | Schlumberger Compteurs | |
US4012669A (en) * | 1975-08-29 | 1977-03-15 | Envirotech Corporation | Electronic overload detecting device |
-
1979
- 1979-05-29 JP JP6568279A patent/JPS55157924A/ja active Granted
-
1980
- 1980-05-27 AT AT80102952T patent/ATE9192T1/de active
- 1980-05-27 DE DE8080102952T patent/DE3069057D1/de not_active Expired
- 1980-05-27 EP EP80102952A patent/EP0019904B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ATE9192T1 (de) | 1984-09-15 |
EP0019904A1 (de) | 1980-12-10 |
EP0019904B1 (de) | 1984-08-29 |
DE3069057D1 (en) | 1984-10-04 |
JPS55157924A (en) | 1980-12-09 |
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