CA2444159A1 - Arc fault detector with circuit interrupter - Google Patents

Arc fault detector with circuit interrupter Download PDF

Info

Publication number
CA2444159A1
CA2444159A1 CA002444159A CA2444159A CA2444159A1 CA 2444159 A1 CA2444159 A1 CA 2444159A1 CA 002444159 A CA002444159 A CA 002444159A CA 2444159 A CA2444159 A CA 2444159A CA 2444159 A1 CA2444159 A1 CA 2444159A1
Authority
CA
Canada
Prior art keywords
signal
current
peak
micro
sine
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
Application number
CA002444159A
Other languages
French (fr)
Other versions
CA2444159C (en
Inventor
David Kolker
Roger M. Bradley
Ross Mernyk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leviton Manufacturing Co Inc
Original Assignee
Leviton Manufacturing Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Leviton Manufacturing Co Inc filed Critical Leviton Manufacturing Co Inc
Priority to CA2790807A priority Critical patent/CA2790807A1/en
Publication of CA2444159A1 publication Critical patent/CA2444159A1/en
Application granted granted Critical
Publication of CA2444159C publication Critical patent/CA2444159C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • H02H3/16—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 fault current to earth, frame or mass
    • H02H3/162—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 fault current to earth, frame or mass for ac systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
    • G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
    • 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
    • H02H3/32—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 in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—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 in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/334—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 in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control
    • 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

There is here disclosed a method and apparatus for detecting the occurrence of arcing of a conductor by monitoring the current on an AC power line. The signal detected is split and directed along four separate paths to generate four signals leaving separate characteristics which represent the current in the line. A first path is for a signal representative of the current flowing in the line. A second paths is for a signal having a pulse for each occurrence of a positive step change in current that is significant and has a di/dt value above a predetermined value. A third path is for a signal having a pulse for each occurrence of a negative step change in current that is significant and has a di/dt value above a predetermined value. A fourth path is for a signal having a voltage level representative of the broadband noise signal on the line. Using at least one of five different methods in combination with one of three input signals, a reference signal designated as "SINE" is generated. The SINE signal generated in combination with a CURRENT input is used to produce a control waveform "DELTA". DELTA can be represented as a relative value or as an absolute difference between the SINE and the CURRENT. Each occurring half cycle of the DELTA signal is analyzed by, for example, a micro- controller for specific identifiable characteristics found to indicate the presence of arcing. Upon the detection of arcing, an output signal can be generated to activate a circuit interrupting mechanism, sound an audio alarm and/or alert a central monitoring station.

Claims (46)

1. An arc fault detecting device capable of being electrically connected to an electrical wiring system between line side phase and neutral conductors and load side phase and neutral conductors, said device comprising:
signal detecting means coupled to detect current in a conductor of the electrical wiring system to generate a signal representative of the detected current, signal modifying means coupled to the signal detecting means to generate at least one modified signal which represents the filtered or unfiltered current detected in the conductor, a micro-controller coupled to receive the at least one modified signal wherein the micro-controller generates a SINE signal having half cycles and zero crossings, compares the SINE signal with at least one of the signals from the signal modifying means to generate a DELTA signal, analyzes the DELTA signal for at least one characteristic representative of the occurrence of an arc, and upon detection of the at least one characteristic representative of the occurrence of an arc, generates an output signal.
2. The device according to claim 1 wherein the signal detecting means comprises a current transformer.
3. The device according to claim 2 wherein the signal modifying means provides a CURRENT signal representative of the current in the line.
4. The device according to claim 2 wherein the signal modifying means provides negative and positive di/dt signals of the detected current in the line.
5. The device according to claim 4 wherein the signal modifying means provides a signal of the high frequency noise on the line.
6. The device according to claim 2 wherein either the phase or neutral conductor is coupled to the current transformer.
7. The device according to claim 3 wherein the signal modifying means for generating the CURRENT signal comprises a programmable gain amplifier controlled by the micro-controller which scales the output signal to one of a number of scales.
8. The device according to claim 7 further comprising a voltage follower located between the transformer and the programmable gain amplifier, and a low pass filter located between the programmable gain amplifier and the micro-controller, wherein the programmable gain amplifier and the low pass filter operate as a D/A
converter for generating the CURRENT signal.
9. The device according to claim 3 wherein the CURRENT signal is used by the micro-controller to generate the SINE signal.
10. The device according to claim 9 wherein the CURRENT signal is fed to a multipoint running finite impulse response filter to smooth the signal prior to being used to generate the SINE signal.
11. The device according to claim 9 wherein the CURRENT signal is fed to (a) an infinite impulse response (IIR) filter to smooth the signal prior to being used to generate the SINE signal.
12. The device according to claim 9 wherein the micro-controller, when generating the SINE signal:
locates a starting CURRENT zero crossing, finds the average of following half cycles of the CURRENT signal, finds a peak of the same polarity as the average in that half cycle, multiplies the peak height by the CURRENT at that point, assumes that real zero crossings are exactly 1/240 second on either side of the peak, and lockouts 1/4 cycle from the leading zero crossing when advancing to next zero crossing.
13. The device according to claim 9 wherein the micro-controller, when generating the SINE signal:
locates a starting CURRENT signal zero crossing, finds the average of following half cycles of the CURRENT signal, finds a peak of the same polarity as the average in that half cycle, multiplies the peak height by the CURRENT at that point, assumes zero crossings are exactly half way between adjacent CURRENT signal peaks, and when advancing to the next zero crossing, begins looking at the present peak.
14. The device according to claim 9 wherein the CURRENT signal and VOLTAGE signal representative of the voltage on the AC lane are fed separately to a multi point running finite impulse response filter and a weighted current input reference filter to smooth CURRENT signal and VOLTAGE signal, and wherein the micro-controller, when generating the SINE signal, uses zero crossings from the VOLTAGE signal, and multiplies the peak height by the CURRENT signal exactly half way between the zero crossings.
15. The device according to claim 9 wherein the micro-controller, when generating the SINE signal:
locates a starting CURRENT zero crossing, finds the average of following half cycles of the CURRENT signal, finds a peak of the same polarity as the average in that half cycle, multiplies the peak height by the CURRENT at that point, assumes that real zero crossings are exactly 1/240 second on either side of the peak, and when advancing to the next zero crossing, begins looking at the present peak.
16. The device according to claim 9 wherein the micro-controller, when generating the SINE signal:
locates a starting CURRENT zero crossing, finds the average of following half cycles of the CURRENT, finds a peak of the same polarity as the average in that half cycle, multiplies the peak height by the CURRENT at that point, when advancing to next zero, begins looking at the present peak, and assumes zero crossings are exactly X/2 on either side of peak, where X is the average frequency from the preceding three cycles of the VOLTAGE signal.
17. The device according to claim 12 wherein the micro-controller subtracts the CURRENT signal from the generated SINE signal and divides the result by the SINE signal to obtain a DELTA signal.
18. The device according to claim 13 wherein the micro-controller subtracts the CURRENT signal from the generated SINE signal and divides the result by the SINE signal to obtain a DELTA signal.
19. The device according to claim 14 wherein the micro-controller subtracts the CURRENT signal from the generated SINE signal and divides the result by the SINE signal to obtain a DELTA signal.
20. The device according to claim 15 wherein the micro-controller subtracts the CURRENT signal from the generated SINE signal and divides the result by the SINE signal to obtain a DELTA signal.
21. The device according to claim 16 wherein the micro-controller subtracts the CURRENT signal from the generated SINE signal and divides the result by the SINE signal to obtain a DELTA signal.
22. The device according to claim 17 wherein the micro-controller analyzes the DELTA signal, continuously, a half cycle at a time to identifying arcing by detecting, in a half cycle, two peaks.
23. The device according to claim 18 wherein the micro-controller analyzes the DELTA signal, continuously, a half cycle at a time to identifying arcing by detecting, in a half cycle, two peaks.
24. The device according to claim 19 wherein the micro-controller analyzes the DELTA signal, continuously, a half cycle at a time to identifying arcing by detecting, in a half cycle, two peaks.
25. The device according to claim 20 wherein the micro-controller analyzes the DELTA signal, continuously, a half cycle at a time to identifying arcing by detecting, in a half cycle, two peaks.
26. The device according to claim 21 wherein the micro-controller analyzes the DELTA signal, continuously, a half cycle at a time to identifying arcing by detecting, in a half cycle, two peaks.
27. The device according to claim 22 wherein the micro-controller further analyzes the DELTA signal for the occurrence of a second peak that is lower than the first peak to further identify arcing.
28. The device according to claim 23 wherein the micro-controller further analyzes the DELTA signal for the occurrence of a second peak that is lower than the first peak to further identify arcing.
29. The device according to claim 24 wherein the micro-controller further analyzes the DELTA signal for the occurrence of a second peak that is lower than the first peak to further identify arcing.
30. The device according to claim 25 wherein the micro-controller further analyzes the DELTA signal for the occurrence of a second peak that is lower than the first peak to further identify arcing.
31. The device according to claim 26 wherein the micro-controller further analyzes the DELTA signal for the occurrence of a second peak that is lower than the first peak to further identify arcing.
32. The device according to claim 27 wherein the micro-controller still further analyzes the DELTA signal to obtain a further indication of arcing when a half cycle containing two peaks surrounds a period of one or more half cycles during low current flow.
33. The device according to claim 28 wherein the micro-controller still further analyzes the DELTA signal to obtain a further indication of arcing when a half cycle containing two peaks surrounds a period of one or more half cycles during low current flow.
34. The device according to claim 29 wherein the micro-controller still further analyzes the DELTA signal to obtain a further indication of arcing when a half cycle containing two peaks surrounds a period of one or more half cycles during low current flow.
35. The device according to claim 30 wherein the micro-controller still further analyzes the DELTA signal to obtain a further indication of arcing when a half cycle containing two peaks surrounds a period of one or more half cycles during low current flow.
36. The device according to claim 31 wherein the micro-controller still further analyzes the DELTA signal to obtain a further indication of arcing when a half cycle containing two peaks surrounds a period of one or more half cycles during low current flow.
37. A method of generating a sinusoidal waveform (SINE) of a signal to an arc fault circuit interrupter for comparison with a second signal comprising the steps of:
smoothing the current using a finite impulse response alter (FIR) and/or an infinite impulse response (IIR) filter, finding a starting current zero crossing, finding an average of following half cycle of current, finding peak of same polarity as average in that half cycle, using peak height or one times current at that point, assuming real zeros are exactly 1/240 sec. either side of peak, and locking out 1/4 cycle from leading zero cross when advancing to next zero.
38. A method of generating a sinusoidal waveform (SINE) of a signal to an arc fault circuit interrupter for comparison with a second signal comprising the steps of:
smoothing the current using a finite impulse response filter (FIR) and/or an infinite impulse response (IIR) filter, finding a starting current zero crossing, finding an average of following half cycle of current, finding peak of same polarity as average in that half cycle, using peak height or one times current at that point, assuming zeros are exactly half way between adjacent current peaks, and when advancing to next zero, begin looking at present peak.
39. A method of generating a sinusoidal waveform (SINE) of a signal to an arc fault circuit interrupter for comparison with a second signal comprising the steps of:
smoothing current and voltage using a finite impulse response filter (FIR) and/or an infinite impulse response (IIR) filter, using zero crosses from the FIR or IIR or raw voltage, multiplying the peak height by the FIR or IIR or raw current exactly half way between zeros.
40. A method of generating a sinusoidal waveform (SINE) of a signal to an arc fault circuit interrupter for comparison with a second signal comprising the steps of:
smoothing the current using a finite impulse response filter (FIR) and/or an infinite impulse response (IIR) filter, finding a starting current zero crossing, finding an average of following half cycle of current, finding peak of same polarity as average in that half cycle, using peak height or one times current at that point, assuming real zeros are exactly 1/240 sec. either side of peak, and when advancing to next zero, begin looking at present peak.
41. A method of generating a sinusoidal waveform (SINE) of a signal to an arc fault circuit interrupter for comparison with a second signal comprising the steps of:
smoothing the current using a finite impulse response filter (FIR) and/or an infinite impulse response (IIR) filter, finding a starting current zero crossing, finding an average of following half cycle of current, finding peak of same polarity as average in that half cycle, using peak height or one times current at that point, when advancing to next zero, begin looking at present peak, and assuming zeros are exactly X/2 either side of peak, where X is the average frequency from the preceding three cycles of the FIR or IIR or raw voltage waveform.
42. The method of claim 37 further comprising the step of:
subtracting the current from the SINE to produce a waveform "DELTA".
43. The method of claim 38 further comprising the step of:
subtracting the current from the SINE to produce a waveform "DELTA".
44. The method of claim 39 further comprising the step of:
subtracting the current from the SINE to produce a waveform "DELTA".
45. The method of claim 40 further comprising the step of:
subtracting the current from the SINE to produce a waveform "DELTA".
46. The method of claim 41 further comprising the step of:

subtracting the current from the SINE to produce a waveform "DELTA".
CA2444159A 2002-10-03 2003-10-03 Arc fault detector with circuit interrupter Expired - Lifetime CA2444159C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2790807A CA2790807A1 (en) 2002-10-03 2003-10-03 Arc fault detector with circuit interrupter

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/263,919 US7003435B2 (en) 2002-10-03 2002-10-03 Arc fault detector with circuit interrupter
US10/263,919 2002-10-03

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2790807A Division CA2790807A1 (en) 2002-10-03 2003-10-03 Arc fault detector with circuit interrupter

Publications (2)

Publication Number Publication Date
CA2444159A1 true CA2444159A1 (en) 2004-04-03
CA2444159C CA2444159C (en) 2012-12-04

Family

ID=32042107

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2444159A Expired - Lifetime CA2444159C (en) 2002-10-03 2003-10-03 Arc fault detector with circuit interrupter
CA2790807A Abandoned CA2790807A1 (en) 2002-10-03 2003-10-03 Arc fault detector with circuit interrupter

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA2790807A Abandoned CA2790807A1 (en) 2002-10-03 2003-10-03 Arc fault detector with circuit interrupter

Country Status (2)

Country Link
US (5) US7003435B2 (en)
CA (2) CA2444159C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114172131A (en) * 2021-12-10 2022-03-11 国网浙江省电力有限公司诸暨市供电公司 Distribution line lightning stroke section fault assessment method and system

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7400477B2 (en) 1998-08-24 2008-07-15 Leviton Manufacturing Co., Inc. Method of distribution of a circuit interrupting device with reset lockout and reverse wiring protection
US6972937B1 (en) 2000-02-17 2005-12-06 Pass & Seymour, Inc. Arc fault circuit detector having two arc fault detection levels
US7068480B2 (en) * 2001-10-17 2006-06-27 Square D Company Arc detection using load recognition, harmonic content and broadband noise
US7003435B2 (en) * 2002-10-03 2006-02-21 Leviton Manufacturing Co., Inc. Arc fault detector with circuit interrupter
IES20030395A2 (en) * 2003-02-12 2004-09-22 Shakira Ltd A residual current device with double grounded neutral fault detection
US6972572B2 (en) 2003-12-22 2005-12-06 Leviton Manufacturing Co., Inc. Arc fault detector
US7190562B2 (en) * 2004-09-09 2007-03-13 Sensata Technologies, Inc. Method for detecting arc faults
US7408750B2 (en) * 2004-09-09 2008-08-05 Sensata Technologies Massachusetts, Inc. Methods of detecting arc faults characterized by consecutive periods of arcing
EP1638181B1 (en) * 2004-09-09 2012-08-15 Sensata Technologies Massachusetts, Inc. Apparatus and method for detecting arc faults
US20060253369A1 (en) * 2005-05-04 2006-11-09 Chicago Board Options Exchange Method of creating and trading derivative investment products based on an average price of an underlying asset during a calculation period
US7227729B2 (en) * 2005-09-13 2007-06-05 Sensata Technologies, Inc. Arc fault detection technique
US7366622B1 (en) * 2005-10-17 2008-04-29 X-L Synergy Arc fault identification using model reference estimation
US7796366B2 (en) * 2005-12-09 2010-09-14 Hamilton Sundstrand Corporation AC arc fault detection and protection
US20070132531A1 (en) * 2005-12-14 2007-06-14 Eaton Corporation Two pole circuit interrupter employing a single arc fault or ground fault trip circuit
US7400481B2 (en) * 2005-12-29 2008-07-15 Sensata Technologies, Inc. Low cost arc fault detection technique
CN101473505A (en) * 2006-06-09 2009-07-01 陈贵 Earthing fault breaker with end-to-life protection function
US7282924B1 (en) * 2006-06-29 2007-10-16 Target Hi-Tech Electronics Ltd. Computerized electricity system having an arc fault detecting sub-system
CN101485059B (en) * 2006-06-30 2012-06-06 立维腾制造有限公司 Circuit interrupter with live ground detector
US20080180866A1 (en) * 2007-01-29 2008-07-31 Honor Tone, Ltd. Combined arc fault circuit interrupter and leakage current detector interrupter
US7746877B2 (en) * 2007-04-26 2010-06-29 2Wire, Inc. Method and apparatus for communicating loss of alternating current power supply
US20090083275A1 (en) * 2007-09-24 2009-03-26 Nokia Corporation Method, Apparatus and Computer Program Product for Performing a Visual Search Using Grid-Based Feature Organization
CN101910856B (en) 2008-01-29 2014-06-18 立维腾制造有限公司 Self testing fault circuit interrupter apparatus and method
US7924537B2 (en) 2008-07-09 2011-04-12 Leviton Manufacturing Company, Inc. Miswiring circuit coupled to an electrical fault interrupter
US8513951B2 (en) * 2008-07-30 2013-08-20 Northrop Grumman Systems Corporation Method and apparatus for fast fault detection
US20100217546A1 (en) * 2009-02-20 2010-08-26 Anthony Locker Methods and Apparatuses for Detecting Faults in Electrical Power Systems
AT507102B1 (en) * 2009-02-23 2010-02-15 Moeller Gebaeudeautomation Gmb BREAKERS
JP5238596B2 (en) * 2009-04-27 2013-07-17 株式会社日本自動車部品総合研究所 Discharge amount measuring device and discharge amount measuring method for rotating electrical machine
US8335062B2 (en) * 2010-03-08 2012-12-18 Pass & Seymour, Inc. Protective device for an electrical supply facility
SI23360A (en) 2010-04-07 2011-10-28 Eti Elektroelement D.D. Arc-based disconnector
US8373570B2 (en) 2010-10-26 2013-02-12 Cooper Technologies Company ARC fault detection method and apparatus
US20120212864A1 (en) * 2011-02-21 2012-08-23 Elms Robert T Fail-safe ground fault circuit interrupter
US9689925B2 (en) * 2011-04-06 2017-06-27 Unique Technologies, Llc Reliable arc fault circuit interrupter tester utilizing a dynamic fault voltage
US8717718B2 (en) 2011-04-11 2014-05-06 Leviton Manufacturing Company, Inc. Electrical load control with fault protection
US9551751B2 (en) 2011-06-15 2017-01-24 Ul Llc High speed controllable load
US8599523B1 (en) 2011-07-29 2013-12-03 Leviton Manufacturing Company, Inc. Arc fault circuit interrupter
US8995098B2 (en) * 2011-10-14 2015-03-31 True-Safe Technologies, Inc. Miswire protection and annunciation of system conditions for arc fault circuit interrupters and other wiring devices
CN102721896B (en) * 2012-07-05 2015-11-18 天津市鸿远电气设备有限公司 Fault arc detection method
CN104620117B (en) * 2012-08-14 2017-05-03 日产自动车株式会社 Power supply apparatus
DE102012215310B4 (en) * 2012-08-29 2020-09-03 Siemens Aktiengesellschaft Circuit arrangement for an electrical protective device
DE102012218504A1 (en) * 2012-10-11 2014-04-17 Bender Gmbh & Co. Kg Differential current monitoring device with arc detection
US9025287B2 (en) 2012-12-19 2015-05-05 Stmicroelectronics S.R.L. Arc fault detection equipment and method using low frequency harmonic current analysis
CN102998573B (en) * 2012-12-27 2016-05-04 天津市鸿远电气设备有限公司 Electric arc fault protection device verifying attachment
CN103217571B (en) * 2013-03-22 2015-03-11 重庆大学 Differential type D-dot voltage transformer and voltage detecting method thereof
CN103245824B (en) * 2013-05-29 2015-02-18 重庆大学 Non-contact D-dot voltage transformer and voltage detection self-correcting method thereof
CN103500991B (en) * 2013-10-14 2017-03-08 南京康尼科技实业有限公司 Integral type protective breaker
US9759758B2 (en) 2014-04-25 2017-09-12 Leviton Manufacturing Co., Inc. Ground fault detector
US9659721B1 (en) 2014-05-06 2017-05-23 Google Inc. Circuit breakers with integrated safety, control, monitoring, and protection features
US9372095B1 (en) 2014-05-08 2016-06-21 Google Inc. Mobile robots moving on a visual display
US10141734B2 (en) * 2014-10-26 2018-11-27 Semiconductor Components Industries, Llc Electrical safety device miswire detection
CN104360205A (en) * 2014-12-01 2015-02-18 河北工业大学 Cascaded arc fault detection method and special device for cascaded arc fault detection method
CN204290310U (en) 2014-12-15 2015-04-22 陈泽 A kind of oppositely ground protection circuit and ground-fault interrupter
US9797940B2 (en) * 2014-12-29 2017-10-24 Eaton Corporation Arc fault detection system and method and circuit interrupter employing same
US9797941B2 (en) * 2014-12-29 2017-10-24 Eaton Corporation Arc fault detection system and method and circuit interrupter employing same
US9768605B2 (en) * 2014-12-29 2017-09-19 Eaton Corporation Arc fault detection system and method and circuit interrupter employing same
US9664723B2 (en) * 2015-01-26 2017-05-30 Hamilton Sundstrand Corporation Systems and methods for arc detection
KR101692476B1 (en) * 2015-03-31 2017-01-03 대한민국 Inspection Device for Radar Component
US9966206B1 (en) 2015-05-06 2018-05-08 Google Llc Circuit breakers with integrated safety, control, monitoring, and protection features
US9837809B2 (en) * 2015-05-27 2017-12-05 Korea Institute Of Energy Research Arc detection apparatus, arc detecting method, and power system
US10020649B2 (en) 2015-07-23 2018-07-10 Pass & Seymour, Inc. Protective device with self-test
CN105004961A (en) * 2015-08-07 2015-10-28 唐健发 Electric leakage prompting system
US9716379B2 (en) 2015-08-31 2017-07-25 Eaton Corporation Wide range current monitoring system and method for electronic trip units
CN105606953B (en) * 2015-09-09 2018-06-29 西安电子科技大学 A kind of automatic sound magnetic-synchro fixed point apparatus for closing sound and being reset with intelligent background noise reduction
US10078105B2 (en) * 2015-09-23 2018-09-18 Abb Schweiz Ag Electrical system with arc fault detection
US10212994B2 (en) 2015-11-02 2019-02-26 Icon Health & Fitness, Inc. Smart watch band
CN105406441B (en) 2015-12-15 2019-04-09 陈泽 A kind of power ground fault secure circuit
US10444121B2 (en) * 2016-05-03 2019-10-15 Sap Se Fault detection using event-based predictive models
US10410816B2 (en) 2016-09-19 2019-09-10 Ze Chen Hybrid arc / ground fault circuit interrupter and methods of operation thereof
US10439387B2 (en) 2016-12-29 2019-10-08 Ze Chen Advanced ground fault circuit interrupters (GFCI) and methods of operation thereof
US10401412B2 (en) * 2016-12-16 2019-09-03 Texas Instruments Incorporated Line fault signature analysis
WO2018150876A1 (en) * 2017-02-14 2018-08-23 パナソニックＩｐマネジメント株式会社 Arc detection circuit, switch system, power conditioner system and arc detection method
CN106875619B (en) * 2017-04-19 2023-04-07 许昌许继低压电器有限公司 Combined type electric fire monitoring detector
WO2019070147A1 (en) * 2017-10-05 2019-04-11 Александр Сергеевич МКРТУМОВ Arc protection device and operating method thereof
CN107505528B (en) * 2017-10-18 2019-10-15 福州大学 The Intelligentized test system and test method of electric arc fault protection electric appliance
US10601213B2 (en) * 2018-05-22 2020-03-24 Schneider Electric USA, Inc. Arc fault detection using frequency hopping techniques
US11101631B2 (en) 2018-07-31 2021-08-24 Eaton Intelligent Power Limited Downed conductor detection
US20200111470A1 (en) * 2018-10-09 2020-04-09 Brian J. Kaczynski Fundamental frequency detection using peak detectors with frequency-controlled decay time
WO2020076713A1 (en) * 2018-10-09 2020-04-16 Brian Kaczynski Fundamental frequency detection using peak detectors with frequency-controlled decay time
CN109557407B (en) * 2018-12-21 2021-01-26 湖南金泰环保科技有限公司 Circuit and method for detecting breakpoint position of grounding wire cable
CN109613400B (en) * 2018-12-24 2019-12-17 华中科技大学 Overhead flexible direct-current power grid fault detection method based on voltage difference of current-limiting reactors
EP3745146B1 (en) * 2019-05-29 2023-10-25 Siemens Aktiengesellschaft Method, device and system for determining a characteristic of a power transmission line
FR3104729B1 (en) * 2019-12-16 2022-01-14 Schneider Electric Ind Sas Devices for detecting an electric arc fault, associated electrical protection devices
CN111505467B (en) * 2020-06-16 2024-02-27 国网天津市电力公司电力科学研究院 Positioning system and method for abnormal discharge signals in partial discharge test of transformer
CN114076903A (en) * 2020-08-21 2022-02-22 黑龙江电卫士电气科技发展有限公司 Arc short circuit fault type judgment method
CN112260233A (en) * 2020-09-11 2021-01-22 安徽美昂电气有限公司 Deep ultraviolet arc light monitoring and protecting device for electric power system
EP3974848A1 (en) 2020-09-24 2022-03-30 ABB Schweiz AG Arc fault detection device with wideband sensor
US11394190B2 (en) 2020-10-30 2022-07-19 Abb Schweiz Ag Multi-frequency ground fault circuit interrupter apparatuses, systems, and method
EP3996224A3 (en) * 2020-11-04 2022-08-17 Abb Schweiz Ag Nuisance trip decision management using data analytics in electrical protection system
US11605943B2 (en) 2021-03-25 2023-03-14 Abb Schweiz Ag Multiple frequency ground fault protection
CN115079042B (en) * 2022-03-10 2023-06-06 重庆科创职业学院 Acoustic wave-based transformer turn-to-turn short circuit detection positioning method and device

Family Cites Families (177)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2247746C3 (en) * 1972-09-29 1975-11-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method of measuring a line impedance
US5202662A (en) * 1978-09-07 1993-04-13 Leviton Manufacturing Company, Inc. Resettable circuit breaker for use in ground fault circuit interrupters and the like
US4356443A (en) * 1980-08-26 1982-10-26 Westinghouse Electric Corp. Detection of arcing faults in polyphase electric machines
US4376243A (en) * 1981-01-26 1983-03-08 General Motors Corporation Arc detector for electric rod furnace
US4466071A (en) * 1981-09-28 1984-08-14 Texas A&M University System High impedance fault detection apparatus and method
US4658322A (en) * 1982-04-29 1987-04-14 The United States Of America As Represented By The Secretary Of The Navy Arcing fault detector
US4709293A (en) 1983-12-05 1987-11-24 Leviton Manufacturing Company, Inc. Shock hazard protection system
US4618907A (en) * 1985-01-29 1986-10-21 Eagle Electric Mfg. Co., Inc. Desensitized ground fault interrupter
US4853818A (en) 1986-12-29 1989-08-01 Electric Power Research Institute, Inc. System and method for detecting arcing in dynamoelectric machines
US4851782A (en) * 1987-01-15 1989-07-25 Jeerings Donald I High impedance fault analyzer in electric power distribution
FR2621748B1 (en) * 1987-10-09 1996-07-05 Merlin Gerin STATIC TRIGGER OF A MOLDED CASE CIRCUIT BREAKER
FR2634897A1 (en) * 1988-07-26 1990-02-02 Alsthom DEVICE FOR MEASURING PHASE CURRENTS OF A THREE-PHASE INSTALLATION
US4931894A (en) * 1989-09-29 1990-06-05 Technology Research Corporation Ground fault current interrupter circuit with arcing protection
US4939495A (en) * 1989-12-19 1990-07-03 Texas Instruments Incorporated Circuit breaker with auxiliary status indicating switch
US5121282A (en) * 1990-03-30 1992-06-09 White Orval C Arcing fault detector
US5185684A (en) * 1991-03-28 1993-02-09 Eaton Corporation Frequency selective arc detection
US5185686A (en) * 1991-03-28 1993-02-09 Eaton Corporation Direction sensing arc detection
US5206596A (en) * 1991-03-28 1993-04-27 Eaton Corporation Arc detector transducer using an e and b field sensor
US5224006A (en) * 1991-09-26 1993-06-29 Westinghouse Electric Corp. Electronic circuit breaker with protection against sputtering arc faults and ground faults
US5280404A (en) * 1992-05-15 1994-01-18 Bio-Rad Laboratories, Inc. Arc detection system
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
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
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
US5729145A (en) * 1992-07-30 1998-03-17 Siemens Energy & Automation, Inc. Method and apparatus for detecting arcing in AC power systems by monitoring high frequency noise
US5536980A (en) * 1992-11-19 1996-07-16 Texas Instruments Incorporated High voltage, high current switching apparatus
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.
US5383799A (en) * 1993-03-26 1995-01-24 Fladung; Philip E. Multi-purpose plug-in electrical outlet adaptor
US5477412A (en) 1993-07-08 1995-12-19 Leviton Manufacturing Co., Inc. Ground fault circuit interrupter incorporating miswiring prevention circuitry
US5452223A (en) * 1993-08-20 1995-09-19 Eaton Corporation Arc detection using current variation
US5459630A (en) * 1993-09-15 1995-10-17 Eaton Corporation Self testing circuit breaker ground fault and sputtering arc trip unit
US5420740A (en) * 1993-09-15 1995-05-30 Eaton Corporation Ground fault circuit interrupter with immunity to wide band noise
US5519561A (en) * 1994-11-08 1996-05-21 Eaton Corporation Circuit breaker using bimetal of thermal-magnetic trip to sense current
US6246556B1 (en) * 1995-03-13 2001-06-12 Square D Company Electrical fault detection system
US5825598A (en) 1997-02-11 1998-10-20 Square D Company Arcing fault detection system installed in a panelboard
US6259996B1 (en) * 1998-02-19 2001-07-10 Square D Company Arc fault detection system
US6313641B1 (en) 1995-03-13 2001-11-06 Square D Company Method and system for detecting arcing faults and testing such system
US5682101A (en) 1995-03-13 1997-10-28 Square D Company Arcing fault detection system
US5590012A (en) 1995-03-30 1996-12-31 Siemens Energy & Automation, Inc. Electric arc detector sensor circuit
US5600524A (en) * 1995-05-04 1997-02-04 Leviton Manufacturing Co., Inc. Intelligent ground fault circuit interrupter
US5561505A (en) * 1995-11-01 1996-10-01 Xerox Corporation Mechanically sealable liquid charging apparatus
US5886606A (en) * 1995-11-14 1999-03-23 Fuji Electric Co., Ltd. Circuit breaker
US5689180A (en) 1995-12-13 1997-11-18 Carlson; Curt S. Isolated electrical power supply
US5818237A (en) * 1996-06-10 1998-10-06 Eaton Corporation Apparatus for envelope detection of low current arcs
US5835321A (en) 1996-08-02 1998-11-10 Eaton Corporation Arc fault detection apparatus and circuit breaker incorporating same
US5796259A (en) * 1996-09-16 1998-08-18 Abb Power T&D Company, Inc. Methods and apparatus for detection of fault direction
US5834940A (en) 1996-09-24 1998-11-10 Brooks; Stanley J. Arcing fault detector testing and demonstration system
US5818671A (en) * 1996-10-04 1998-10-06 General Electric Company Circuit breaker with arcing fault detection module
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
US5839092A (en) 1997-03-26 1998-11-17 Square D Company Arcing fault detection system using fluctuations in current peaks and waveforms
US5999384A (en) 1997-08-25 1999-12-07 Square D Company Circuit interrupter with arcing fault protection and PTC (positive temperature coefficient resistivity) elements for short circuit and overload protection
US5906517A (en) * 1997-09-11 1999-05-25 Fiskars Inc. Power strip
US6359745B1 (en) * 1997-09-26 2002-03-19 Iomega Corporation Latent illuminance discrimination marker system for data storage cartridges
US5805398A (en) * 1997-09-29 1998-09-08 Eaton Corporation Arc fault detector with immunity to tungsten bulb burnout and circuit breaker incorporating same
US5815352A (en) * 1997-09-29 1998-09-29 Eaton Corporation Arc fault detector with limiting of sensed signal to shape response characteristic and circuit breaker incoprorating same
US5805397A (en) * 1997-09-29 1998-09-08 Eaton Corporation Arcing fault detector with multiple channel sensing and circuit breaker incorporating same
US6088205A (en) * 1997-12-19 2000-07-11 Leviton Manufacturing Co., Inc. Arc fault detector with circuit interrupter
US6128169A (en) * 1997-12-19 2000-10-03 Leviton Manufacturing Co., Inc. Arc fault detector with circuit interrupter and early arc fault detection
US5963406A (en) * 1997-12-19 1999-10-05 Leviton Manufacturing Co., Inc. Arc fault detector with circuit interrupter
US6567250B1 (en) * 1998-02-19 2003-05-20 Square D Company Arc fault protected device
US6782329B2 (en) * 1998-02-19 2004-08-24 Square D Company Detection of arcing faults using bifurcated wiring system
US5986860A (en) 1998-02-19 1999-11-16 Square D Company Zone arc fault detection
US5982596A (en) 1998-05-05 1999-11-09 George Authur Spencer Load center monitor and digitally enhanced circuit breaker system for monitoring electrical power lines
US6266219B1 (en) 1998-06-02 2001-07-24 Pass & Seymour, Inc. Combination ground fault and arc fault circuit interrupter
US5933305A (en) 1998-06-02 1999-08-03 Eaton Corporation Arc fault detector comparing integrated interval to interval filtered load current and circuit breaker incorporating same
US6275044B1 (en) * 1998-07-15 2001-08-14 Square D Company Arcing fault detection system
US6040967A (en) * 1998-08-24 2000-03-21 Leviton Manufacturing Co., Inc. Reset lockout for circuit interrupting device
US6373257B1 (en) * 1998-12-09 2002-04-16 Pass & Seymour, Inc. Arc fault circuit interrupter
US6198611B1 (en) 1998-12-15 2001-03-06 Pass & Seymour, Inc. Arc fault circuit interrupter without DC supply
US6218844B1 (en) * 1998-12-16 2001-04-17 Square D Company Method and apparatus for testing an arcing fault circuit interrupter
US6377055B1 (en) 1998-12-18 2002-04-23 Pass & Seymour, Inc. Arc fault detector device with two stage arc sensing
US6362628B2 (en) * 1998-12-21 2002-03-26 Pass & Seymour, Inc. Arc fault circuit detector device detecting pulse width modulation of arc noise
US6426632B1 (en) * 1999-03-29 2002-07-30 George A. Spencer Method and apparatus for testing an AFCI/GFCI circuit breaker
US6191589B1 (en) * 1999-03-29 2001-02-20 George A. Spencer Test circuit for an AFCI/GFCI circuit breaker
US6426634B1 (en) * 1999-03-29 2002-07-30 George A. Spencer Circuit breaker with integrated self-test enhancements
US6433977B1 (en) * 1999-04-16 2002-08-13 Pass & Seymour, Inc. Combo AFCI/GFCI with single test button
US6295190B1 (en) * 1999-10-26 2001-09-25 Electric Boat Corporation Circuit breaker arrangement with integrated protection, control and monitoring
CA2334134A1 (en) 2000-02-03 2001-08-03 Bruce F. Macbeth Afci which detects and interrupts line side arcing
US6388849B1 (en) 2000-02-14 2002-05-14 Eaton Corporation ARC fault detector responsive to average instantaneous current and step increases in current and circuit breaker incorporating same
US6839208B2 (en) 2000-02-17 2005-01-04 Pass & Seymour, Inc Arc fault circuit interrupter recognizing arc noise burst patterns
US6972937B1 (en) 2000-02-17 2005-12-06 Pass & Seymour, Inc. Arc fault circuit detector having two arc fault detection levels
US6798628B1 (en) 2000-11-17 2004-09-28 Pass & Seymour, Inc. Arc fault circuit detector having two arc fault detection levels
US6421214B1 (en) * 2000-03-03 2002-07-16 Pass & Seymour, Inc. Arc fault or ground fault detector with self-test feature
US6608741B1 (en) 2000-03-04 2003-08-19 Pass & Seymour, Inc. Two winding resonating arc fault sensor which boosts arc fault signals while rejecting arc mimicking noise
US6876528B2 (en) * 2000-03-04 2005-04-05 Passi Seymour, Inc. Two winding resonating arc fault sensor which boosts arc fault signals while rejecting arc mimicking noise
US6628486B1 (en) * 2000-03-06 2003-09-30 Pass & Seymour, Inc. Fault detection device with line-load miswire protection
US6504692B1 (en) 2000-04-06 2003-01-07 Pass & Seymour, Inc. AFCI device which detects upstream and downstream series and parallel ARC faults
US6621388B1 (en) 2000-04-06 2003-09-16 Pass & Seymour, Inc. Lockout mechanism for use with ground and arc fault circuit interrupters
US6628487B1 (en) 2000-04-27 2003-09-30 Pass & Seymour, Inc. Method and apparatus for detecting upstream series arc faults
US7035066B2 (en) * 2000-06-02 2006-04-25 Raytheon Company Arc-default detecting circuit breaker system
JP3615126B2 (en) 2000-07-11 2005-01-26 寛治 大塚 Semiconductor circuit device
AU2001275892A1 (en) * 2000-07-11 2002-01-21 Inari, Inc. Modular power line network adapter
US6522509B1 (en) 2000-07-21 2003-02-18 Eaton Corporation Arc fault detection in ac electric power systems
US6417671B1 (en) * 2000-11-07 2002-07-09 General Electric Company Arc fault circuit breaker apparatus and related methods
US6987389B1 (en) 2000-11-14 2006-01-17 Pass & Seymour, Inc. Upstream/downstream arc fault discriminator
US6807035B1 (en) * 2000-11-28 2004-10-19 Hubbell Incorporated Fault interrupter using microcontroller for fault sensing and automatic self-testing
US6642832B2 (en) 2000-12-08 2003-11-04 Texas Instruments Incorporated ARC responsive thermal circuit breaker
US6654219B1 (en) 2000-12-11 2003-11-25 Pass & Seymour, Inc. Arc fault detector with diagnostic indicator
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
US6876529B2 (en) 2000-12-15 2005-04-05 Skyworks Solutions, Inc. Electrostatic discharge protection circuit
US6807036B2 (en) 2001-04-26 2004-10-19 Hubbell Incorporated Digital fault interrupter with self-testing capabilities
US20030151478A1 (en) * 2001-10-02 2003-08-14 Dejan Radosavljevic Protection device with lockout test
US7068480B2 (en) * 2001-10-17 2006-06-27 Square D Company Arc detection using load recognition, harmonic content and broadband noise
US6999289B2 (en) 2001-11-09 2006-02-14 Pass & Seymour, Inc. Arc fault circuit interrupter which detects the cessation of arcs of an arc fault
US6538862B1 (en) * 2001-11-26 2003-03-25 General Electric Company Circuit breaker with a single test button mechanism
US6545574B1 (en) * 2001-12-17 2003-04-08 General Electric Company Arc fault circuit breaker
US6785104B2 (en) * 2002-03-05 2004-08-31 Eaton Corporation Low energy pulsing device and method for electrical system arc detection
MXPA04009263A (en) * 2002-04-04 2005-01-25 Hoon Kim Kyung A low volatage electricity distribution circuit.
KR100464596B1 (en) * 2002-04-09 2005-01-03 휴먼엘텍 주식회사 Circuit Breaker for Detecting Overload
US6762920B2 (en) 2002-04-30 2004-07-13 Eaton Corporation Electronic fault detector for variable frequency ac systems and circuit breaker incorporating same
US6707651B2 (en) 2002-06-03 2004-03-16 Eaton Corporation ARC fault or ground fault or ARC fault/ground fault trip signal generator and trip unit employing the same
US6810069B2 (en) 2002-07-12 2004-10-26 Mcgraw-Edison Company Electrical arc furnace protection system
US7180717B2 (en) * 2002-07-12 2007-02-20 Cooper Technologies Company Electrical network protection system
US6720872B1 (en) * 2002-07-16 2004-04-13 Eaton Corporation Ground fault/arc fault circuit interrupter and method of testing the same with a test button and a reset button
JP3863828B2 (en) 2002-08-26 2006-12-27 富士通株式会社 Disk medium positioning method
US7003435B2 (en) * 2002-10-03 2006-02-21 Leviton Manufacturing Co., Inc. Arc fault detector with circuit interrupter
WO2004034070A1 (en) * 2002-10-10 2004-04-22 Hanyang Hak Won Co., Ltd. Hybrid type sensor for detecting high frequency partial discharge
US20040100274A1 (en) 2002-11-22 2004-05-27 Siemens Energy & Automation, Inc. Arc fault tester
US7253640B2 (en) 2003-01-13 2007-08-07 Eaton Corporation Arc fault detector and method for locating an arc fault
US7009406B2 (en) * 2003-04-24 2006-03-07 Delphi Technologies, Inc. Arc fault detector and method
US7149065B2 (en) 2003-06-16 2006-12-12 Hubbell Incorporated Self testing digital fault interrupter
US7068045B2 (en) 2003-07-25 2006-06-27 Gaton Corporation Apparatus and method for real time determination of arc fault energy, location and type
US7492562B2 (en) 2003-09-10 2009-02-17 Siemens Energy & Automation, Inc. AFCI temperature compensated current sensor
US6943558B2 (en) * 2003-09-15 2005-09-13 The Boeing Company System and method for remotely detecting electric arc events in a power system
US6972572B2 (en) * 2003-12-22 2005-12-06 Leviton Manufacturing Co., Inc. Arc fault detector
US7180299B2 (en) * 2003-12-22 2007-02-20 Leviton Manufacturing Co., Inc. Arc fault detector
DE102004011023A1 (en) 2004-03-04 2005-09-15 Siemens Ag Three or four-pole low-voltage circuit breaker, has output signals from Rogowski coils fed via low-pass filters to measuring amplifier and via resistances to integrating capacitor
US7110864B2 (en) 2004-03-08 2006-09-19 Siemens Energy & Automation, Inc. Systems, devices, and methods for detecting arcs
GB0409549D0 (en) 2004-04-29 2004-06-02 Lem Heme Ltd Current measurement apparatus
US7161775B2 (en) 2004-05-21 2007-01-09 Eaton Corporation Arc fault circuit breaker and apparatus for detecting wet track arc fault
GB0412129D0 (en) 2004-05-29 2004-06-30 Lem Heme Ltd Improvements in and relating to current measuring apparatus
US7307820B2 (en) 2004-06-21 2007-12-11 Siemens Energy & Automation, Inc. Systems, methods, and device for arc fault detection
US20050286184A1 (en) 2004-06-22 2005-12-29 Steve Campolo Electrical power outlet strip
US7298598B1 (en) 2004-07-02 2007-11-20 Pass & Seymour, Inc Wiring device with multi-shot miswire
US7215520B2 (en) * 2004-07-20 2007-05-08 Eaton Corporation Circuit interrupter including arc fault test and/or ground fault test failure indicator
US7362552B2 (en) 2004-07-20 2008-04-22 Eaton Corporation Arc fault circuit interrupter
US7190562B2 (en) * 2004-09-09 2007-03-13 Sensata Technologies, Inc. Method for detecting arc faults
US7440245B2 (en) 2004-09-28 2008-10-21 Eaton Corporation Arc fault circuit interrupter and method of detecting an arc fault
US7253603B2 (en) * 2005-01-06 2007-08-07 S & C Electric Co. Current sensor arrangement
US20060171085A1 (en) * 2005-01-21 2006-08-03 Thomas Keating Arc fault detection
US7227441B2 (en) * 2005-02-04 2007-06-05 Schweitzer Engineering Laboratories, Inc. Precision Rogowski coil and method for manufacturing same
US7304829B2 (en) 2005-02-16 2007-12-04 General Electric Company Apparatus and method for filtering current sensor output signals
US7460346B2 (en) 2005-03-24 2008-12-02 Honeywell International Inc. Arc fault detection and confirmation using voltage and current analysis
US7253996B2 (en) 2005-04-06 2007-08-07 Eaton Corporation Method and arc fault circuit interrupter employing a hysteresis value for compressor rumble
US7268989B2 (en) * 2005-04-11 2007-09-11 Eaton Corporation Arc fault circuit interrupter for a compressor load
DE102005016996B4 (en) * 2005-04-13 2014-10-23 TRUMPF Hüttinger GmbH + Co. KG Current measurement device
US7319574B2 (en) * 2005-05-23 2008-01-15 Eaton Corporation Arc fault detection apparatus, method and system for an underground electrical conductor
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
US7253637B2 (en) * 2005-09-13 2007-08-07 Square D Company Arc fault circuit interrupter system
US20070091520A1 (en) 2005-09-28 2007-04-26 Mario Angelides Ground fault circuit interrupter having an integrated variable timer
US7359168B2 (en) 2005-10-18 2008-04-15 Eaton Corporation Arc fault circuit interrupter and method for disabling series arc protection during current transients
US7440250B2 (en) 2005-11-30 2008-10-21 Eaton Corporation Circuit breaker including open neutral interlock
EP1793235A1 (en) * 2005-11-30 2007-06-06 ABB Technology AG Monitoring System for High-Voltage Switch Gears
US20070159738A1 (en) 2006-01-09 2007-07-12 Eaton Corporation Receptacle providing sustained excessive voltage protection
US7486492B2 (en) 2006-01-18 2009-02-03 Eaton Corporation Electrical switching apparatus including a second trip circuit responding to failure of a first trip circuit to provide a repetitive signal
US7443644B2 (en) 2006-02-09 2008-10-28 Sam Kyoung Sung Circuit for preventing malfunction of arc fault detection device
US7518840B2 (en) 2006-02-14 2009-04-14 Eaton Corporation Electrical switching apparatus and receptacle including automatic miswiring protection
US7441173B2 (en) 2006-02-16 2008-10-21 Siemens Energy & Automation, Inc. Systems, devices, and methods for arc fault detection
US20070208520A1 (en) 2006-03-01 2007-09-06 Siemens Energy & Automation, Inc. Systems, devices, and methods for arc fault management
US7638999B2 (en) 2006-04-07 2009-12-29 Cooper Technologies Company Protective relay device, system and methods for Rogowski coil sensors
US7499250B2 (en) 2006-04-19 2009-03-03 Siemens Energy & Automation, Inc. Systems, devices, and methods for temperature compensation in arc fault detection systems
US7492163B2 (en) 2006-04-27 2009-02-17 Siemens Energy & Automation, Inc. Systems, devices, and methods for arc fault detection
US7403129B2 (en) * 2006-05-10 2008-07-22 Eaton Corporation Electrical switching apparatus and method employing acoustic and current signals to distinguish between parallel and series arc faults
US7368918B2 (en) 2006-07-27 2008-05-06 Siemens Energy & Automation Devices, systems, and methods for adaptive RF sensing in arc fault detection
US7864492B2 (en) 2006-10-31 2011-01-04 Siemens Industry, Inc. Systems and methods for arc fault detection
US8023235B2 (en) 2006-10-31 2011-09-20 Siemens Industry, Inc. Multifunctional residential circuit breaker
US7538541B2 (en) 2006-11-06 2009-05-26 Cooper Technologies Company Split Rogowski coil current measuring device and methods
US7633728B2 (en) 2007-02-27 2009-12-15 Eaton Corporation Arc fault circuit interrupter and method of parallel arc fault detection
US7558033B2 (en) 2007-02-27 2009-07-07 Eaton Corporation Arc fault circuit interrupter and method of parallel and series arc fault detection
US7633729B2 (en) 2007-10-22 2009-12-15 Hamilton Sundstrand Corporation Alternating current series arc fault detection method
US7570465B2 (en) 2007-12-19 2009-08-04 Eaton Corporation Industrial arc fault circuit interrupter and method of detecting arcing conditions
US20090248329A1 (en) 2008-03-25 2009-10-01 Siemens Energy & Automation, Inc. Arc fault root-cause finder system and method
US8054591B2 (en) 2008-07-24 2011-11-08 General Electric Company Arc detection using discrete wavelet transforms
US8054592B2 (en) 2008-10-03 2011-11-08 General Electric Company Arc fault detection using fuzzy logic
US8184011B2 (en) 2008-10-08 2012-05-22 Siemens Industry, Inc. Visual indication of fault status, storage and clearance in an arc fault circuit interrupter (AFCI)
US7944654B2 (en) 2008-11-10 2011-05-17 Scott Gary W Multiple-pole circuit breaker with shared current sensor for arcing fault detection
US8169757B2 (en) 2008-12-17 2012-05-01 Schneider Electric USA, Inc. Circuit breaker with bistable display

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114172131A (en) * 2021-12-10 2022-03-11 国网浙江省电力有限公司诸暨市供电公司 Distribution line lightning stroke section fault assessment method and system
CN114172131B (en) * 2021-12-10 2024-04-05 国网浙江省电力有限公司诸暨市供电公司 Distribution line lightning stroke section fault evaluation method and system

Also Published As

Publication number Publication date
US20040066593A1 (en) 2004-04-08
US7333920B2 (en) 2008-02-19
US20060212235A1 (en) 2006-09-21
CA2790807A1 (en) 2004-04-03
US9347978B2 (en) 2016-05-24
US8564307B2 (en) 2013-10-22
US7003435B2 (en) 2006-02-21
US20110181296A1 (en) 2011-07-28
US7925458B2 (en) 2011-04-12
US20140104731A1 (en) 2014-04-17
US20080140354A1 (en) 2008-06-12
CA2444159C (en) 2012-12-04

Similar Documents

Publication Publication Date Title
CA2444159A1 (en) Arc fault detector with circuit interrupter
AU710763B2 (en) Apparatus for detecting and responding to series arcs in AC electrical systems
US6373257B1 (en) Arc fault circuit interrupter
CN102460880B (en) For the method and apparatus that multi-frequency ground fault circuit interrupt grounded neutral fault detects
EP2766968A1 (en) Method and apparatus for detecting an arc in a dc circuit
CA2369429A1 (en) Method for discriminating abnormal current including arc current in ac load circuit and apparatus for executing the same
Hadziefendic et al. Detection of series arcing in low‐voltage electrical installations
JP2001289900A (en) Insulation deterioration detecting circuit and device using it
JPH0386014A (en) Differential protective relay unit
CN109429165A (en) Detection method, device, system and the broadcast system of power amplifier
EP2959575B1 (en) Motor control circuit and method of monitoring a motor
WO2018083350A1 (en) Test apparatus for functionally testing protective switching devices
KR101472439B1 (en) Zero-phase harmonic reduction device
AU2010215062B2 (en) Circuit breaker having detection of the aperiodic current change
Park et al. Detection algorithm of series arc for electrical fire prediction
EP2390980B1 (en) Method and device for detecting an intermittent earth fault in a multiple feeder system
Javaid et al. Transient analysis method using high pass filter circuit in VSC interfaced multi-terminal DC system
KR100974253B1 (en) Apparatus for detecting arc signal and method for detecting the arc signal
CA2216544C (en) Circuit interrupter including an electric arc monitoring circuit
JP2001289903A (en) Insulation deterioration detecting circuit and device using this circuit
CN114076903A (en) Arc short circuit fault type judgment method
JP3650769B2 (en) Commercial power supply neutral grounding side detector
SU748296A1 (en) Device for monitoring earthings in mains with insulated neutral wire
CN114252669A (en) Device for generating series arc harmonic signals
Kim Discrimination of Arcing Faults from Normal Distribution Disturbances by Wave form Distortion Analysis

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20231003