IT1250486B - Interruttore digitale con parametri di sganciamento per motori elettrici - Google Patents
Interruttore digitale con parametri di sganciamento per motori elettriciInfo
- Publication number
- IT1250486B IT1250486B IT2199189A IT2199189A IT1250486B IT 1250486 B IT1250486 B IT 1250486B IT 2199189 A IT2199189 A IT 2199189A IT 2199189 A IT2199189 A IT 2199189A IT 1250486 B IT1250486 B IT 1250486B
- Authority
- IT
- Italy
- Prior art keywords
- impending
- circuit breaker
- sufficient time
- prevent damage
- visual indication
- 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
- H02H3/08—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
- H02H3/0935—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 the timing being determined by numerical means
Landscapes
- Protection Of Generators And Motors (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/256,357 US4967304A (en) | 1988-10-11 | 1988-10-11 | Digital circuit interrupter with electric motor trip parameters |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8921991A0 IT8921991A0 (it) | 1989-10-11 |
IT1250486B true IT1250486B (it) | 1995-04-07 |
Family
ID=22971956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2199189A IT1250486B (it) | 1988-10-11 | 1989-10-11 | Interruttore digitale con parametri di sganciamento per motori elettrici |
Country Status (6)
Country | Link |
---|---|
US (1) | US4967304A (it) |
JP (1) | JPH02133034A (it) |
CA (1) | CA1299643C (it) |
DE (1) | DE3933201A1 (it) |
FR (1) | FR2637744A1 (it) |
IT (1) | IT1250486B (it) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5038246A (en) * | 1989-08-31 | 1991-08-06 | Square D Company | Fault powered, processor controlled circuit breaker trip system having reliable tripping operation |
US5673412A (en) * | 1990-07-13 | 1997-09-30 | Hitachi, Ltd. | Disk system and power-on sequence for the same |
DE4109867C2 (de) * | 1991-03-26 | 1996-05-30 | Bosch Gmbh Robert | Schutzeinrichtung für Elektromotoren |
DE4111439A1 (de) * | 1991-04-09 | 1992-10-15 | Ritz Messwandler Kg | Digitales schutzrelais |
US5157575A (en) * | 1991-05-13 | 1992-10-20 | Schweitzer Engineering Laboratories, Inc. | Circuit breaker failure relay system for power transmission line systems |
US5305234A (en) * | 1991-12-31 | 1994-04-19 | Westinghouse Electric Corp. | Thermal protection apparatus for a synchronous machine |
US5295037A (en) * | 1992-01-27 | 1994-03-15 | General Electric Company | Molded case circuit breaker-process loop unit |
US5512883A (en) * | 1992-11-03 | 1996-04-30 | Lane, Jr.; William E. | Method and device for monitoring the operation of a motor |
US5723915A (en) * | 1992-12-04 | 1998-03-03 | Texas Instruments Incorporated | Solid state power controller |
US5473497A (en) * | 1993-02-05 | 1995-12-05 | Franklin Electric Co., Inc. | Electronic motor load sensing device |
US5475609A (en) * | 1993-03-05 | 1995-12-12 | Square D Company | Load interrupter system |
DE9307326U1 (de) * | 1993-05-14 | 1993-07-29 | Siemens AG, 80333 München | Türsteuereinheit |
US6125024A (en) * | 1993-06-03 | 2000-09-26 | Texas Instruments Incorporated | Externally programmable solid state power controller with power switch protection apparatus and method for making |
US5426406A (en) * | 1993-10-10 | 1995-06-20 | General Electric Company | Induction motor protective circuit breaker unit |
US5546331A (en) * | 1994-03-10 | 1996-08-13 | Robertshaw Controls Company | AC line voltage measurement and control |
US5539370A (en) * | 1995-02-17 | 1996-07-23 | General Electric Company | Inductive motor protective circuit breaker |
US5872722A (en) * | 1996-09-04 | 1999-02-16 | Eaton Corporation | Apparatus and method for adjustment and coordination of circuit breaker trip curves through graphical manipulation |
US6011416A (en) * | 1997-02-19 | 2000-01-04 | Harness System Technologies Research Ltd. | Switch circuit having excess-current detection function |
US5815357A (en) * | 1997-04-09 | 1998-09-29 | Eaton Corporation | Method and apparatus for three-phase sensing using two current transformers |
US5959818A (en) * | 1997-06-30 | 1999-09-28 | Eaton Corporation | Method and apparatus for self-powered three-phase sensing to determine true RMS current values with separate burdens for each current transformer |
US5777835A (en) * | 1997-06-30 | 1998-07-07 | Eaton Corporation | Third phase reconstruction from a two current transformer sensor with three-phase true RMS and phase loss determination capabilities |
US6128168A (en) * | 1998-01-14 | 2000-10-03 | General Electric Company | Circuit breaker with improved arc interruption function |
US6185482B1 (en) * | 1998-03-10 | 2001-02-06 | Abb Power T&D Company Inc. | System and method for rms overcurrent backup function |
US6144540A (en) * | 1999-03-09 | 2000-11-07 | General Electric Company | Current suppressing circuit breaker unit for inductive motor protection |
US6157286A (en) * | 1999-04-05 | 2000-12-05 | General Electric Company | High voltage current limiting device |
DE50009730D1 (de) * | 1999-05-21 | 2005-04-14 | Ebm Papst St Georgen Gmbh & Co | Verfahren zum betreiben eines elektromotors, und elektromotor zur durchführung eines solchen verfahrens |
US6330141B1 (en) * | 2000-06-13 | 2001-12-11 | Eaton Corporation | Electronic protective relay with variable and fixed delay tally time of current protection |
DE10032655A1 (de) * | 2000-06-28 | 2002-01-10 | Siemens Ag | Elektrischer Überstromauslöser für einen Niederspannungs-Leistungsschalter |
US6765776B2 (en) * | 2001-12-12 | 2004-07-20 | International Truck Intellectual Property Company, Llc | Configurable interrupter for circuit overcurrent conditions |
JP3851617B2 (ja) * | 2003-05-27 | 2006-11-29 | ファナック株式会社 | モータ駆動装置 |
US7394629B2 (en) | 2003-10-16 | 2008-07-01 | Rockwell Automation Technologies, Inc. | Motor overload tripping system and method with multi-function circuit interrupter |
US7019951B2 (en) * | 2004-06-03 | 2006-03-28 | Rockwell Automation Technologies, Inc. | Extended trip range motor control system and method |
US7178436B2 (en) * | 2003-11-07 | 2007-02-20 | United States Steel Corporation | Method of cutting carbon and alloy steel |
US6995964B2 (en) * | 2004-06-03 | 2006-02-07 | Rockwell Automation Technologies, Inc. | Combination-type motor control with extended current range |
WO2006111187A1 (en) | 2005-04-18 | 2006-10-26 | Freescale Semiconductor, Inc | Current driver circuit and method of operation therefor |
DE602005024317D1 (de) * | 2005-04-18 | 2010-12-02 | Freescale Semiconductor Inc | Stromtreiberschaltung und verfahren zu ihrem betrieb |
EP2382698A4 (en) * | 2009-01-07 | 2017-01-25 | ABB Technology AG | Control of protection relay |
US9991693B2 (en) * | 2012-10-17 | 2018-06-05 | General Electric Company | Circuit protection device and methods of configuring a circuit protection device |
US9705310B2 (en) | 2013-11-26 | 2017-07-11 | Thomas & Betts International Llc | Adaptive fault clearing based on power transistor temperature |
US9864008B2 (en) | 2014-03-31 | 2018-01-09 | Schweitzer Engineering Laboratories, Inc. | Electric power system circuit breaker trip diagnostic |
JP2018170840A (ja) | 2017-03-29 | 2018-11-01 | アイシン精機株式会社 | 過電流保護装置及び過電流保護装置を備える駆動装置 |
US10424913B2 (en) * | 2017-12-20 | 2019-09-24 | Schneider Electric USA, Inc. | Dynamic motor current phase unbalance protection |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4000446A (en) * | 1975-06-04 | 1976-12-28 | Borg-Warner Corporation | Overload protection system for three-phase submersible pump motor |
ES468764A1 (es) * | 1978-04-13 | 1979-10-01 | Arteche Instr Sistemas | nueva proteccion electrica con tiempo de retardo dependien-te de una magnitud regulada |
GB2020124B (en) * | 1978-04-27 | 1982-08-25 | Tokyo Shibaura Electric Co | Overcurrent protection |
US4266259A (en) * | 1979-09-04 | 1981-05-05 | General Electric Company | Long-time and short-time overcurrent signal processor for circuit breaker static trip units |
JPS57500313A (it) * | 1980-02-23 | 1982-02-18 | ||
DE3042138A1 (de) * | 1980-11-03 | 1982-05-27 | Mannesmann AG, 4000 Düsseldorf | Schutzschaltungs-vorrichtung fuer einen gleichstrommotor, insbesondere fuer einen drucker-aufwickel-gleichstrommotor |
JPS58172927A (ja) * | 1982-04-02 | 1983-10-11 | 株式会社日立製作所 | 過負荷保護装置 |
US4509088A (en) * | 1982-09-30 | 1985-04-02 | Square D Company | Motor protector relay with memory of overload |
DE3247439A1 (de) * | 1982-12-22 | 1984-07-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Digitalelektronischer ueberstromausloeser |
US4672501A (en) * | 1984-06-29 | 1987-06-09 | General Electric Company | Circuit breaker and protective relay unit |
FR2578090B1 (fr) * | 1985-02-25 | 1989-12-01 | Merlin Gerin | Disjoncteur a declencheur statique numerise a fonction de declenchement a temps inverse |
US4694374A (en) * | 1985-04-26 | 1987-09-15 | Westinghouse Electric Corp. | Programmed overexcitation protective relay and method of operating the same |
-
1988
- 1988-10-11 US US07/256,357 patent/US4967304A/en not_active Expired - Lifetime
-
1989
- 1989-06-08 CA CA000602238A patent/CA1299643C/en not_active Expired - Lifetime
- 1989-10-05 DE DE3933201A patent/DE3933201A1/de not_active Withdrawn
- 1989-10-05 JP JP1258984A patent/JPH02133034A/ja active Pending
- 1989-10-10 FR FR8913220A patent/FR2637744A1/fr not_active Withdrawn
- 1989-10-11 IT IT2199189A patent/IT1250486B/it active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
IT8921991A0 (it) | 1989-10-11 |
US4967304A (en) | 1990-10-30 |
CA1299643C (en) | 1992-04-28 |
JPH02133034A (ja) | 1990-05-22 |
DE3933201A1 (de) | 1990-04-12 |
FR2637744A1 (fr) | 1990-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted |