CA2202738A1 - Apparatus for detecting and responding to series arcs in ac electrical systems - Google Patents
Apparatus for detecting and responding to series arcs in ac electrical systemsInfo
- Publication number
- CA2202738A1 CA2202738A1 CA002202738A CA2202738A CA2202738A1 CA 2202738 A1 CA2202738 A1 CA 2202738A1 CA 002202738 A CA002202738 A CA 002202738A CA 2202738 A CA2202738 A CA 2202738A CA 2202738 A1 CA2202738 A1 CA 2202738A1
- Authority
- CA
- Canada
- Prior art keywords
- pulse
- window
- timer
- series
- responding
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
- H02H1/0015—Using arc detectors
-
- 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
- H02H3/44—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 the rate of change of electrical quantities
Abstract
Series arcs in an ac circuit are discriminated from other phenomenon by analyzing the timing between pulses in a second derivative of the current signal. A
first timer starts timing upon detection of a first pulse in the second derivative of current signal. Time out of the first timer starts a second timer which times a second interval or window during which a series arcing fault will generate a second pulse of opposite polarity to the first pulse. Detection of the first pulse followed by a second pulse of opposite polarity during the window sets a flip-flop to record the event. When a predetermined number of events are counted by a counter within a given time-period set by a third timer, an output signal indicating an arcing fault is generated. If the second pulse is generated before the window opens, or a third pulse occurs during the window, the flip-flop cannot be set so that other events such as the switching of a dimmer do not generate a false output signal.
first timer starts timing upon detection of a first pulse in the second derivative of current signal. Time out of the first timer starts a second timer which times a second interval or window during which a series arcing fault will generate a second pulse of opposite polarity to the first pulse. Detection of the first pulse followed by a second pulse of opposite polarity during the window sets a flip-flop to record the event. When a predetermined number of events are counted by a counter within a given time-period set by a third timer, an output signal indicating an arcing fault is generated. If the second pulse is generated before the window opens, or a third pulse occurs during the window, the flip-flop cannot be set so that other events such as the switching of a dimmer do not generate a false output signal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US633,603 | 1996-04-17 | ||
US08/633,603 US5726577A (en) | 1996-04-17 | 1996-04-17 | Apparatus for detecting and responding to series arcs in AC electrical systems |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2202738A1 true CA2202738A1 (en) | 1997-10-17 |
CA2202738C CA2202738C (en) | 2003-12-30 |
Family
ID=24540328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002202738A Expired - Lifetime CA2202738C (en) | 1996-04-17 | 1997-04-15 | Apparatus for detecting and responding to series arcs in ac electrical systems |
Country Status (7)
Country | Link |
---|---|
US (1) | US5726577A (en) |
EP (1) | EP0802602A3 (en) |
JP (1) | JP4077531B2 (en) |
AU (1) | AU710763B2 (en) |
BR (1) | BR9700564A (en) |
CA (1) | CA2202738C (en) |
ZA (1) | ZA973154B (en) |
Families Citing this family (64)
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US6259996B1 (en) | 1998-02-19 | 2001-07-10 | Square D Company | Arc fault detection system |
US6377427B1 (en) | 1995-03-13 | 2002-04-23 | Square D Company | Arc fault protected electrical receptacle |
US6532424B1 (en) | 1995-03-13 | 2003-03-11 | Square D Company | Electrical fault detection circuit with dual-mode power supply |
US6242993B1 (en) | 1995-03-13 | 2001-06-05 | Square D Company | Apparatus for use in arcing fault detection systems |
US6452767B1 (en) | 1995-03-13 | 2002-09-17 | Square D Company | Arcing fault detection system for a secondary line of a current transformer |
US6246556B1 (en) | 1995-03-13 | 2001-06-12 | Square D Company | Electrical fault detection system |
US5903159A (en) * | 1996-04-10 | 1999-05-11 | Mitsubishi Denki Kabushiki Kaisha | Microwave sensor for sensing discharge faults |
US5834940A (en) * | 1996-09-24 | 1998-11-10 | Brooks; Stanley J. | Arcing fault detector testing and demonstration system |
US5847913A (en) | 1997-02-21 | 1998-12-08 | Square D Company | Trip indicators for circuit protection devices |
US6477021B1 (en) | 1998-02-19 | 2002-11-05 | Square D Company | Blocking/inhibiting operation in an arc fault detection system |
US6567250B1 (en) | 1998-02-19 | 2003-05-20 | Square D Company | Arc fault protected device |
US6621669B1 (en) | 1998-02-19 | 2003-09-16 | Square D Company | Arc fault receptacle with a feed-through connection |
US6782329B2 (en) | 1998-02-19 | 2004-08-24 | Square D Company | Detection of arcing faults using bifurcated wiring system |
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 |
US6459273B1 (en) * | 1998-11-23 | 2002-10-01 | Siemens Energy & Automation, Inc. | Arc fault detector method |
US6373257B1 (en) * | 1998-12-09 | 2002-04-16 | Pass & Seymour, Inc. | Arc fault circuit interrupter |
US6229679B1 (en) | 1998-12-15 | 2001-05-08 | Macbeth Bruce F. | Arc fault circuit interrupter without DC supply |
FR2798527B1 (en) | 1999-09-10 | 2001-11-09 | Schneider Electric Ind Sa | EARTH PROTECTION DEVICE SENSITIVE TO ARC CURRENTS, TRIGGER AND CIRCUIT BREAKER COMPRISING SUCH A DEVICE |
IL135120A0 (en) | 2000-03-16 | 2001-05-20 | Sapir Michael | Apparatus for the detection and early warning of electrical arcing fault |
US6556397B2 (en) * | 2000-05-12 | 2003-04-29 | Human El-Tech, Inc. | Device and method for detecting arc fault |
US6577484B1 (en) * | 2000-12-12 | 2003-06-10 | Pass & Seymour, Inc. | Arc fault detector device utilizing the di/dt and 60 Hz components of an arcing waveform |
US6711510B2 (en) | 2001-02-20 | 2004-03-23 | Trw Inc. | Over-current protection method and device |
GB0104763D0 (en) * | 2001-02-27 | 2001-04-18 | Smiths Group Plc | Arc detection |
US7136265B2 (en) * | 2001-10-17 | 2006-11-14 | Square D Company | Load recognition and series arc detection using bandpass filter signatures |
US6717786B2 (en) | 2001-10-30 | 2004-04-06 | The Boeing Company | Automatic voltage source selector for circuit breakers utilizing electronics |
US7068045B2 (en) * | 2003-07-25 | 2006-06-27 | Gaton Corporation | Apparatus and method for real time determination of arc fault energy, location and type |
US7062388B2 (en) * | 2004-03-18 | 2006-06-13 | General Electric Company | Series arc detection |
AT500608B1 (en) | 2004-07-14 | 2008-07-15 | Siemens Ag Oesterreich | METHOD FOR CONTROLLING A CLEARING DEVICE FOR A RESERVOIRING RECTIFIER BRIDGE |
TWI315937B (en) * | 2004-10-18 | 2009-10-11 | Monolithic Power Systems Inc | Low noise audio amplifier and the method thereof |
US7268989B2 (en) * | 2005-04-11 | 2007-09-11 | Eaton Corporation | Arc fault circuit interrupter for a compressor load |
AU2006246275B2 (en) * | 2005-05-12 | 2010-12-23 | Corporation Nuvolt Inc. | Current sensor |
US7349188B2 (en) * | 2005-06-06 | 2008-03-25 | Eaton Corporation | Arc fault detector responsive to patterns in interval to interval change in integrated sensed current values |
US7573112B2 (en) * | 2006-04-14 | 2009-08-11 | Allegro Microsystems, Inc. | Methods and apparatus for sensor having capacitor on chip |
US7687882B2 (en) * | 2006-04-14 | 2010-03-30 | Allegro Microsystems, Inc. | Methods and apparatus for integrated circuit having multiple dies with at least one on chip capacitor |
TW200821460A (en) * | 2006-07-11 | 2008-05-16 | Yamaha Motor Co Ltd | Internal combustion engine controlling apparatus and automotive vehicle incorporating the same |
US20080013298A1 (en) | 2006-07-14 | 2008-01-17 | Nirmal Sharma | Methods and apparatus for passive attachment of components for integrated circuits |
US20080157781A1 (en) * | 2006-12-27 | 2008-07-03 | General Electric Company | Methods and systems for detecting series arcs in electrical systems |
US7463465B2 (en) * | 2006-12-28 | 2008-12-09 | General Electric Company | Series arc fault current interrupters and methods |
US20090171603A1 (en) * | 2007-12-28 | 2009-07-02 | Sriram Changali | Methods of detecting series arcs in electrical signals |
US8054591B2 (en) * | 2008-07-24 | 2011-11-08 | General Electric Company | Arc detection using discrete wavelet transforms |
US8093670B2 (en) * | 2008-07-24 | 2012-01-10 | Allegro Microsystems, Inc. | Methods and apparatus for integrated circuit having on chip capacitor with eddy current reductions |
US20100052424A1 (en) * | 2008-08-26 | 2010-03-04 | Taylor William P | Methods and apparatus for integrated circuit having integrated energy storage device |
US8159793B2 (en) * | 2008-12-22 | 2012-04-17 | General Electric Company | Arc detection using detailed and approximate coefficients from discrete wavelet transforms |
US8170816B2 (en) * | 2008-12-29 | 2012-05-01 | General Electric Company | Parallel arc detection using discrete wavelet transforms |
US9551751B2 (en) | 2011-06-15 | 2017-01-24 | Ul Llc | High speed controllable load |
US8629539B2 (en) | 2012-01-16 | 2014-01-14 | Allegro Microsystems, Llc | Methods and apparatus for magnetic sensor having non-conductive die paddle |
US9666788B2 (en) | 2012-03-20 | 2017-05-30 | Allegro Microsystems, Llc | Integrated circuit package having a split lead frame |
US10234513B2 (en) | 2012-03-20 | 2019-03-19 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with integral ferromagnetic material |
US9812588B2 (en) | 2012-03-20 | 2017-11-07 | Allegro Microsystems, Llc | Magnetic field sensor integrated circuit with integral ferromagnetic material |
US9494660B2 (en) | 2012-03-20 | 2016-11-15 | Allegro Microsystems, Llc | Integrated circuit package having a split lead frame |
US9634479B2 (en) * | 2012-11-16 | 2017-04-25 | Sensata Technologies, Inc. | Noise propagation immunity of a multi-string arc fault detection device |
US9411025B2 (en) | 2013-04-26 | 2016-08-09 | Allegro Microsystems, Llc | Integrated circuit package having a split lead frame and a magnet |
US10411498B2 (en) | 2015-10-21 | 2019-09-10 | Allegro Microsystems, Llc | Apparatus and methods for extending sensor integrated circuit operation through a power disturbance |
EP3443626B1 (en) | 2016-05-31 | 2023-10-25 | Siemens Aktiengesellschaft | Arc fault identification unit |
CN109478773B (en) | 2016-05-31 | 2020-09-04 | 西门子股份公司 | Fault arc identification unit |
CN109478775B (en) * | 2016-05-31 | 2020-12-25 | 西门子股份公司 | Fault arc identification unit |
IT201800002111A1 (en) * | 2018-01-29 | 2019-07-29 | Abb Schweiz Ag | Method for detecting an electric arc phenomenon in a low voltage power line. |
US10978897B2 (en) | 2018-04-02 | 2021-04-13 | Allegro Microsystems, Llc | Systems and methods for suppressing undesirable voltage supply artifacts |
JP7072982B2 (en) * | 2018-04-13 | 2022-05-23 | 日東工業株式会社 | Discharge accident detection structure |
US11016133B2 (en) | 2018-12-12 | 2021-05-25 | Hamilton Sunstrand Corporation | Arc fault detection with sense wire monitoring |
US11047899B2 (en) | 2018-12-12 | 2021-06-29 | Hamilton Sunstrand Corporation | High frequency arc fault detection |
US10991644B2 (en) | 2019-08-22 | 2021-04-27 | Allegro Microsystems, Llc | Integrated circuit package having a low profile |
CN110703041B (en) * | 2019-10-24 | 2020-09-15 | 西南交通大学 | Power transmission line fault detection method based on current-current derivative two-dimensional space |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1169706A (en) * | 1966-09-29 | 1969-11-05 | English Electric Co Ltd | An Electrical Fault Detector |
US4376243A (en) * | 1981-01-26 | 1983-03-08 | General Motors Corporation | Arc detector for electric rod furnace |
FR2527381A1 (en) * | 1982-05-19 | 1983-11-25 | Merlin Gerin | ELECTRONIC ARC DETECTION RELAY |
US4949214A (en) * | 1989-08-28 | 1990-08-14 | Spencer George A | Trip delay override for electrical circuit breakers |
US5121282A (en) * | 1990-03-30 | 1992-06-09 | White Orval C | Arcing fault detector |
US5477150A (en) * | 1990-10-24 | 1995-12-19 | Hendry Mechanical Works | Electric arc and radio frequency spectrum detection |
US5185687A (en) * | 1991-03-28 | 1993-02-09 | Eaton Corporation | Chaos sensing arc detection |
US5208542A (en) * | 1991-03-28 | 1993-05-04 | Eaton Corporation | Timing window arc detection |
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 |
US5223795A (en) * | 1992-07-30 | 1993-06-29 | Blades Frederick K | Method and apparatus for detecting arcing in electrical connections 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. |
US5452223A (en) * | 1993-08-20 | 1995-09-19 | Eaton Corporation | Arc detection using current variation |
-
1996
- 1996-04-17 US US08/633,603 patent/US5726577A/en not_active Expired - Lifetime
-
1997
- 1997-04-04 AU AU17713/97A patent/AU710763B2/en not_active Ceased
- 1997-04-04 EP EP97105638A patent/EP0802602A3/en not_active Withdrawn
- 1997-04-14 ZA ZA9703154A patent/ZA973154B/en unknown
- 1997-04-14 JP JP11352197A patent/JP4077531B2/en not_active Expired - Fee Related
- 1997-04-15 CA CA002202738A patent/CA2202738C/en not_active Expired - Lifetime
- 1997-04-17 BR BR9700564A patent/BR9700564A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BR9700564A (en) | 1998-09-29 |
CA2202738C (en) | 2003-12-30 |
AU710763B2 (en) | 1999-09-30 |
EP0802602A2 (en) | 1997-10-22 |
ZA973154B (en) | 1997-11-14 |
JPH1062486A (en) | 1998-03-06 |
AU1771397A (en) | 1997-10-23 |
EP0802602A3 (en) | 1998-06-17 |
MX9702784A (en) | 1997-11-29 |
JP4077531B2 (en) | 2008-04-16 |
US5726577A (en) | 1998-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20170418 |