SE9400989L - Sätt och anordning för detektering av när effektsystem är ur fas - Google Patents
Sätt och anordning för detektering av när effektsystem är ur fasInfo
- Publication number
- SE9400989L SE9400989L SE9400989A SE9400989A SE9400989L SE 9400989 L SE9400989 L SE 9400989L SE 9400989 A SE9400989 A SE 9400989A SE 9400989 A SE9400989 A SE 9400989A SE 9400989 L SE9400989 L SE 9400989L
- Authority
- SE
- Sweden
- Prior art keywords
- effective
- power
- trend
- measured
- detecting
- Prior art date
Links
Classifications
-
- 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
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
- H02J3/241—The oscillation concerning frequency
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
- H02J3/242—Arrangements for preventing or reducing oscillations of power in networks using phasor measuring units [PMU]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5090777A JP2619194B2 (ja) | 1993-03-25 | 1993-03-25 | 電力系統の安定化装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9400989D0 SE9400989D0 (sv) | 1994-03-24 |
SE9400989L true SE9400989L (sv) | 1994-09-26 |
SE517646C2 SE517646C2 (sv) | 2002-07-02 |
Family
ID=14008040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9400989A SE517646C2 (sv) | 1993-03-25 | 1994-03-24 | Sätt och anordning för detektering av när kraftsystem är ur fas |
Country Status (4)
Country | Link |
---|---|
US (1) | US5539655A (sv) |
JP (1) | JP2619194B2 (sv) |
CH (1) | CH690977A5 (sv) |
SE (1) | SE517646C2 (sv) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10336883A (ja) * | 1997-04-02 | 1998-12-18 | Toshiba Corp | 電力系統の脱調検出方法および脱調検出装置 |
JP4092617B2 (ja) * | 2001-12-03 | 2008-05-28 | 学校法人日本大学 | 電力系統の脱調検出方法およびその装置 |
US6927562B2 (en) * | 2002-02-27 | 2005-08-09 | On-Line Monitoring, Inc. | Power factor/tan δtesting of high voltage bushings on power transformers, current transformers, and circuit breakers |
US20100060289A1 (en) * | 2008-09-05 | 2010-03-11 | Skf Usa, Inc. | System for Electrical Apparatus Testing |
US8244406B2 (en) * | 2009-04-17 | 2012-08-14 | Howard University | System and method of monitoring and optimizing power quality in a network |
EP3012420A1 (de) * | 2014-10-24 | 2016-04-27 | Siemens Aktiengesellschaft | Verfahren und Steuereinrichtung zum Synchronsieren einer Turbine mit dem Stromnetz |
US20180269681A1 (en) * | 2017-03-14 | 2018-09-20 | V & R Energy Systems Research, Inc. | Power systems and related voltage stability methods |
JP7318419B2 (ja) * | 2019-08-28 | 2023-08-01 | 富士電機株式会社 | 交流系統の監視システム |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4249088A (en) * | 1979-07-19 | 1981-02-03 | General Electric Company | Automatic device for synchronization of prime mover with electrical grid |
US4757263A (en) * | 1987-05-01 | 1988-07-12 | Tennessee Valley Authority | Insulation power factor alarm monitor |
JPH0738011B2 (ja) * | 1988-05-16 | 1995-04-26 | 株式会社日立製作所 | 高圧電力機器の異常診断システム |
US4996471A (en) * | 1990-02-28 | 1991-02-26 | Frank Gallo | Controller for an electrostatic precipitator |
JPH0452051A (ja) * | 1990-06-19 | 1992-02-20 | Sumitomo Chem Co Ltd | 高純度アルミニウムスラブの製造方法 |
JP2511181B2 (ja) * | 1990-07-05 | 1996-06-26 | 三菱重工業株式会社 | 肉厚測定装置 |
-
1993
- 1993-03-25 JP JP5090777A patent/JP2619194B2/ja not_active Expired - Fee Related
-
1994
- 1994-03-23 US US08/216,426 patent/US5539655A/en not_active Expired - Fee Related
- 1994-03-24 SE SE9400989A patent/SE517646C2/sv not_active IP Right Cessation
- 1994-03-25 CH CH00910/94A patent/CH690977A5/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US5539655A (en) | 1996-07-23 |
CH690977A5 (de) | 2001-03-15 |
JP2619194B2 (ja) | 1997-06-11 |
SE517646C2 (sv) | 2002-07-02 |
SE9400989D0 (sv) | 1994-03-24 |
JPH06284578A (ja) | 1994-10-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |