CA1013846A - Ground fault circuit breaker with cold temperature bimetal constriction - Google Patents
Ground fault circuit breaker with cold temperature bimetal constrictionInfo
- Publication number
- CA1013846A CA1013846A CA213,967A CA213967A CA1013846A CA 1013846 A CA1013846 A CA 1013846A CA 213967 A CA213967 A CA 213967A CA 1013846 A CA1013846 A CA 1013846A
- Authority
- CA
- Canada
- Prior art keywords
- constriction
- circuit breaker
- ground fault
- cold temperature
- fault circuit
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H69/00—Apparatus or processes for the manufacture of emergency protective devices
- H01H69/01—Apparatus or processes for the manufacture of emergency protective devices for calibrating or setting of devices to function under predetermined conditions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H2011/0075—Apparatus or processes specially adapted for the manufacture of electric switches calibrating mechanical switching properties, e.g. "snap or switch moment", by mechanically deforming a part of the switch, e.g. elongating a blade spring by puncturing it with a laser
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
- H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Emergency Protection Circuit Devices (AREA)
- Breakers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00421573A US3858130A (en) | 1973-12-04 | 1973-12-04 | Ground fault circuit breaker with cold temperature bimetal constriction |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1013846A true CA1013846A (en) | 1977-07-12 |
Family
ID=23671119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA213,967A Expired CA1013846A (en) | 1973-12-04 | 1974-11-18 | Ground fault circuit breaker with cold temperature bimetal constriction |
Country Status (4)
Country | Link |
---|---|
US (1) | US3858130A (en) |
CA (1) | CA1013846A (en) |
GB (1) | GB1483914A (en) |
ZA (1) | ZA747346B (en) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3999103A (en) * | 1975-03-14 | 1976-12-21 | Westinghouse Electric Corporation | Multi-pole ground fault circuit breaker |
IT1223522B (en) * | 1987-12-17 | 1990-09-19 | Elettrocondutture | DIFFERENTIAL CURRENT DETECTOR DEVICE IN ELECTRICAL SYSTEMS, STRUCTURED IN A WAY TO BE COUPLED, IN A CLOSED POSITION, TO NORMAL SWITCHES WITHOUT DANGER OF ACCIDENTAL ASSEMBLY ERRORS |
US5012382A (en) * | 1990-06-14 | 1991-04-30 | Teal Electronics Corporation | Low impedance power conditioner apparatus and method |
ZA926652B (en) * | 1991-09-26 | 1993-03-16 | Westinghouse Electric Corp | Circuit breaker with protection against sputtering arc faults |
US5224006A (en) * | 1991-09-26 | 1993-06-29 | Westinghouse Electric Corp. | Electronic circuit breaker with protection against sputtering arc faults and ground faults |
US5434509A (en) * | 1992-07-30 | 1995-07-18 | Blades; Frederick K. | Method and apparatus for detecting arcing in alternating-current power systems by monitoring high-frequency noise |
US5432455A (en) * | 1992-07-30 | 1995-07-11 | Blades; Frederick K. | Method and apparatus for detecting arcing in alternating current power systems by monitoring high-frequency noise |
ZA941138B (en) * | 1993-02-26 | 1994-08-29 | Westinghouse Electric Corp | Circuit breaker responsive to repeated in-rush currents produced by a sputtering arc fault. |
US5420740A (en) * | 1993-09-15 | 1995-05-30 | Eaton Corporation | Ground fault circuit interrupter with immunity to wide band noise |
US5682101A (en) | 1995-03-13 | 1997-10-28 | Square D Company | Arcing fault detection system |
US6259996B1 (en) | 1998-02-19 | 2001-07-10 | Square D Company | Arc fault detection system |
US6313642B1 (en) | 1995-03-13 | 2001-11-06 | Square D Company | Apparatus and method for testing an arcing fault detection system |
US6242993B1 (en) | 1995-03-13 | 2001-06-05 | Square D Company | Apparatus for use in arcing fault detection systems |
US6313641B1 (en) | 1995-03-13 | 2001-11-06 | Square D Company | Method and system for detecting arcing faults and testing such system |
US6246556B1 (en) | 1995-03-13 | 2001-06-12 | Square D Company | Electrical fault detection system |
US6377427B1 (en) | 1995-03-13 | 2002-04-23 | Square D Company | Arc fault protected electrical receptacle |
US6034611A (en) * | 1997-02-04 | 2000-03-07 | Square D Company | Electrical isolation device |
US6532424B1 (en) | 1995-03-13 | 2003-03-11 | Square D Company | Electrical fault detection circuit with dual-mode power supply |
US6452767B1 (en) | 1995-03-13 | 2002-09-17 | Square D Company | Arcing fault detection system for a secondary line of a current transformer |
US5825598A (en) * | 1997-02-11 | 1998-10-20 | Square D Company | Arcing fault detection system installed in a panelboard |
US5834940A (en) * | 1996-09-24 | 1998-11-10 | Brooks; Stanley J. | Arcing fault detector testing and demonstration system |
US5839092A (en) * | 1997-03-26 | 1998-11-17 | Square D Company | Arcing fault detection system using fluctuations in current peaks and waveforms |
US5946179A (en) * | 1997-03-25 | 1999-08-31 | Square D Company | Electronically controlled circuit breaker with integrated latch tripping |
US5847913A (en) * | 1997-02-21 | 1998-12-08 | Square D Company | Trip indicators for circuit protection devices |
US5969921A (en) * | 1998-01-29 | 1999-10-19 | Eaton Corporation | Ground fault electrical switching apparatus for coordinating tripping with a downstream ground fault switch |
US6625550B1 (en) | 1998-02-19 | 2003-09-23 | Square D Company | Arc fault detection for aircraft |
US5986860A (en) * | 1998-02-19 | 1999-11-16 | Square D Company | Zone arc fault detection |
US6621669B1 (en) | 1998-02-19 | 2003-09-16 | Square D Company | Arc fault receptacle with a feed-through connection |
US6567250B1 (en) | 1998-02-19 | 2003-05-20 | Square D Company | Arc fault protected device |
US6477021B1 (en) | 1998-02-19 | 2002-11-05 | Square D Company | Blocking/inhibiting operation in an arc fault detection system |
US6782329B2 (en) | 1998-02-19 | 2004-08-24 | Square D Company | Detection of arcing faults using bifurcated wiring system |
US7151656B2 (en) | 2001-10-17 | 2006-12-19 | Square D Company | Arc fault circuit interrupter system |
US7136265B2 (en) | 2001-10-17 | 2006-11-14 | Square D Company | Load recognition and series arc detection using bandpass filter signatures |
US7068480B2 (en) | 2001-10-17 | 2006-06-27 | Square D Company | Arc detection using load recognition, harmonic content and broadband noise |
US6822543B1 (en) | 2003-09-24 | 2004-11-23 | General Electric Company | System and method for controlling trip unit mechanical stress |
US7041921B2 (en) * | 2004-04-19 | 2006-05-09 | Moeller Gebäudeautomation KG | Switching device |
AT504607A1 (en) * | 2004-04-19 | 2008-06-15 | Moeller Gebaeudeautomation Kg | SWITCHGEAR |
US7253637B2 (en) | 2005-09-13 | 2007-08-07 | Square D Company | Arc fault circuit interrupter system |
CN101145478B (en) * | 2007-10-12 | 2010-07-28 | 温州市新蓝天电器有限公司 | Circuit breaker with leakage, overloading and short circuit protector |
US8729988B1 (en) * | 2013-03-13 | 2014-05-20 | Eaton Corporation | Trip device support frame and top frame calibration method |
US8872606B1 (en) | 2013-04-23 | 2014-10-28 | Eaton Corporation | Bimetal and magnetic armature providing an arc splatter resistant offset therebetween, and circuit breaker including the same |
US10535484B2 (en) * | 2017-11-29 | 2020-01-14 | Schneider Electric USA, Inc. | Noncontact solenoid for miniature circuit breakers with a movable frame and magnetic coupling |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2691708A (en) * | 1951-10-10 | 1954-10-12 | Westinghouse Electric Corp | Circuit breaker |
US2786917A (en) * | 1954-06-04 | 1957-03-26 | Gen Electric | Circuit breaker trip device |
US3636482A (en) * | 1970-05-25 | 1972-01-18 | Federal Pacific Electric Co | Modular circuit breakers and panelboards with ground-fault protection |
-
1973
- 1973-12-04 US US00421573A patent/US3858130A/en not_active Expired - Lifetime
-
1974
- 1974-11-15 ZA ZA00747346A patent/ZA747346B/en unknown
- 1974-11-18 CA CA213,967A patent/CA1013846A/en not_active Expired
- 1974-12-04 GB GB52390/74A patent/GB1483914A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1483914A (en) | 1977-08-24 |
AU7565374A (en) | 1976-05-27 |
ZA747346B (en) | 1975-11-26 |
US3858130A (en) | 1974-12-31 |
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