SE7900261L - Anordning for overvakning av stromfelsfordelningen i stromriktargrenar - Google Patents
Anordning for overvakning av stromfelsfordelningen i stromriktargrenarInfo
- Publication number
- SE7900261L SE7900261L SE7900261A SE7900261A SE7900261L SE 7900261 L SE7900261 L SE 7900261L SE 7900261 A SE7900261 A SE 7900261A SE 7900261 A SE7900261 A SE 7900261A SE 7900261 L SE7900261 L SE 7900261L
- Authority
- SE
- Sweden
- Prior art keywords
- current
- monitoring
- converter
- misdistribution
- transformers
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/10—Measuring sum, difference or ratio
-
- 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
- H02H3/36—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 of different systems, e.g. of parallel feeder systems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Protection Of Static Devices (AREA)
- Rectifiers (AREA)
- Measurement Of Current Or Voltage (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2807095A DE2807095C2 (de) | 1978-02-20 | 1978-02-20 | Schaltungsanordnung zur Überwachung der Stromfehlverteilung in zwei parallelgeschalteten Stromrichterzweigen |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7900261L true SE7900261L (sv) | 1979-08-21 |
Family
ID=6032415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7900261A SE7900261L (sv) | 1978-02-20 | 1979-01-11 | Anordning for overvakning av stromfelsfordelningen i stromriktargrenar |
Country Status (8)
Country | Link |
---|---|
US (1) | US4228477A (ja) |
JP (1) | JPS54122847A (ja) |
CA (1) | CA1126820A (ja) |
DE (1) | DE2807095C2 (ja) |
FR (1) | FR2417873A1 (ja) |
GB (1) | GB2014806B (ja) |
SE (1) | SE7900261L (ja) |
SU (1) | SU841617A3 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4384248A (en) * | 1979-06-22 | 1983-05-17 | Hitachi, Ltd. | Method and apparatus for detecting shortcircuit in arm of GTO inverter |
DE2930034A1 (de) * | 1979-07-24 | 1981-02-12 | Siemens Ag | Ueberwachungseinrichtung fuer die kondensatorbatterie eines gleichstromfilterkreises |
US4290007A (en) * | 1979-12-03 | 1981-09-15 | United Systems Corporation | High power and high voltage transistor control circuit |
US4706159A (en) * | 1985-03-12 | 1987-11-10 | Pitney Bowes Inc. | Multiple power supply overcurrent protection circuit |
EP0351559B1 (de) * | 1988-06-29 | 1993-12-01 | Siemens Aktiengesellschaft | Einrichtung zum Erfassen von inneren Fehlern bei einer Hochspannungskondensatorbatterie |
US5170118A (en) * | 1991-08-14 | 1992-12-08 | Sundstrand Corporation | Circuit and method for testing inverter drive logic switching patterns |
CN103336163B (zh) * | 2013-06-18 | 2015-06-17 | 中国科学院电工研究所 | 柔性高压直流输电系统换流阀交直流电压测试电路 |
CN103887768B (zh) * | 2014-04-09 | 2016-07-06 | 南京保合太和电力科技有限公司 | 励磁系统整流桥差动保护方法及系统 |
CN104020378B (zh) * | 2014-06-10 | 2016-11-23 | 杭州泽天科技有限公司 | 多个电磁阀的检测方法和装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1121206B (de) * | 1960-03-24 | 1962-01-04 | Licentia Gmbh | Schaltungsanordnung zur UEberwachung einer Gleichrichteranlage |
DE1110744B (de) * | 1960-04-14 | 1961-07-13 | Bbc Brown Boveri & Cie | Anordnung zur UEberwachung des Stromflusses parallelgeschalteter Halbleiterventile |
CA933592A (en) * | 1971-06-16 | 1973-09-11 | Canadian General Electric Company Limited | Cell surveillance monitor for a power converter |
AT331920B (de) * | 1973-12-05 | 1976-08-25 | Siemens Ag | Uberwachungsschaltung fur eine anzahl gleichzeitig stromdurchflossener ventile |
US4063145A (en) * | 1975-05-13 | 1977-12-13 | Siemens Aktiengesellschaft | Circuit arrangement for firing controlled, parallel-connected electric valves |
-
1978
- 1978-02-20 DE DE2807095A patent/DE2807095C2/de not_active Expired
-
1979
- 1979-01-11 SE SE7900261A patent/SE7900261L/ not_active Application Discontinuation
- 1979-01-31 US US06/008,040 patent/US4228477A/en not_active Expired - Lifetime
- 1979-02-16 FR FR7904077A patent/FR2417873A1/fr active Granted
- 1979-02-16 GB GB7905616A patent/GB2014806B/en not_active Expired
- 1979-02-19 CA CA321,734A patent/CA1126820A/en not_active Expired
- 1979-02-19 SU SU792730353A patent/SU841617A3/ru active
- 1979-02-20 JP JP1898079A patent/JPS54122847A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CA1126820A (en) | 1982-06-29 |
GB2014806A (en) | 1979-08-30 |
DE2807095B1 (de) | 1978-12-14 |
GB2014806B (en) | 1982-03-10 |
FR2417873A1 (fr) | 1979-09-14 |
FR2417873B1 (ja) | 1981-11-06 |
SU841617A3 (ru) | 1981-06-23 |
US4228477A (en) | 1980-10-14 |
JPS54122847A (en) | 1979-09-22 |
DE2807095C2 (de) | 1979-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 7900261-4 |