WO1988008217A1 - An arc relay - Google Patents
An arc relay Download PDFInfo
- Publication number
- WO1988008217A1 WO1988008217A1 PCT/FI1988/000052 FI8800052W WO8808217A1 WO 1988008217 A1 WO1988008217 A1 WO 1988008217A1 FI 8800052 W FI8800052 W FI 8800052W WO 8808217 A1 WO8808217 A1 WO 8808217A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fibre
- arc
- pickup sensor
- photosensor
- switchgear
- Prior art date
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
- H02H1/0023—Using arc detectors sensing non electrical parameters, e.g. by optical, pneumatic, thermal or sonic sensors
Definitions
- the invention relates to an arc relay intended for detecting an arc possibly flashing up at one or more points of a switchgear and for extinguishing it by causing a circuit-breaker supplying current to the switchgear to be opened.
- the arc relay comprises a pickup sensor for collecting light, an optical fibre connected to the pickup sensor for transmitting the collected light forwards along the fibre, a photo ⁇ sensor connected to the end of the fibre, and an elec ⁇ tronics unit connected to the photosensor for control- ing the circuit-breaker in response to the detected arc.
- switchgears used in the distribution of electricity with an arc relay which detects an arc created and extinguishes it by causing one or more of the circuit-breakers supplying current to the switch- gear to be opened.
- the duration of the arc is in this way reduced as much_ as to one tenth, so that large damages can be avoided and the degree of utilization of the switchgear can be increased.
- the arc creates a light, pressure, heat and sound effect each one of which could be used for detecting the arc.
- the object of the present invention is to avoid the above drawbacks and provide a novel type of arc relay which is more advantageous in price as its structure is simpler than that of prior devices. This is achieved by means of an arc relay of the type de ⁇ scribed in the beginning in such a manner that a transparent cladding surrounding the core of an op ⁇ tical fibre is arranged as a pickup sensor.
- the basic idea of the invention is thus to eli- minate the need of collector lenses and to use the fibre as a pickup sensor so that a plurality of sen ⁇ sors can be positioned along one and the same fibre.
- the arc relay according to the invention re ⁇ quires one optical fibre and one photosensor only for monitoring several points, e.g. the different cells of the switchgear, wherefore the price of the device is advantageous.
- Several switchgears can be monitored by means of a single fibre when the fibre is mounted to extend through the switchgears to be monitored. As one optical fibre only is needed, continuous auto-di ⁇ agnosis is easy to carry out.
- Figure 1 illustrates schematically the light measuring principle of an arc relay according to the invention monitoring the different cells of an elec ⁇ tric switchgear
- Figure 2 illustrates schematically an optical fibre acting as a pickup sensor and an electronics unit attached thereto
- Figure 3 illustrates the arc relay according to Figure 2, the arc relay being additionally provided with a testing part which checks the condition of the relay from time to time, and
- Figure 4 illustrates an example of a pickup sensor formed at the end of a fibre.
- Figure 1 shows an electric switchgear 1 the successive cells of which are indicated with the re ⁇ ferences A to E.
- An arc relay 2 is shown simplified so that it comprises an optical fibre 3 extending through the cells and an electronics unit 4 attached there ⁇ after.
- the light of an arc possibly created in each cell is collected in the fibre 3 from its side through the cladding of the fibre.
- the term cladding as used herein refers to a part surrounding the core and allowing the passage of light therethrough into the core along which light passes onwards. The structure of the fibre is described more closely below.
- Fig ⁇ ure 1 the light of an arc created in the cells B and D is indicated with the arrows V.
- the rest of the fibre may be coated so that it is opaque where ⁇ as the cladding of the part acting as a pickup sensor has to be transparent.
- This is illustrated in the cell E, in which a fibre part 3e acting as a pickup sensor is free, whereas the rest of the fibre 3 is provided with an opaque coating 5.
- the light collect- ing capacity can be improved and the directionality can be reduced by looping the fibre part acting as a pickup sensor.
- This is illustrated in connection with the cells B, C and D, in which fibre parts 3b, 3c and 3d acting as a pickup sensor are formed by successive loops.
- the pickup sensor can also be formed by a straight fibre part in the cell, as is shown by the sensor part 3a in the cell A.
- the arc relay according to the invention enables the detection of an arc created in any one of the cells by means of a single optical fibre 3 and a photosensor (not shown) connected there ⁇ af er and further coupled to the electronics unit 4.
- the arc relay it is not possible to de ⁇ tect in which cell the arc is created; on the other hand, location detection is not usually necessary.
- In ⁇ formation obtained from the photosensor is processed in the electronics unit 4, which controls a circuit- breaker through its relay output 6.
- FIG 2 shows schematically the optical fibre 3 acting as a pickup sensor and the electronics unit 4.
- the corresponding parts are indicated with the same reference numerals as in Figure 1.
- the fibre part 3f acting as a pickup sensor is positioned at the point to be monitored, and the fibre, now covered with the coating 5, extends further to the photosensor 7 and the electronics unit 4, which is positioned in a hous ⁇ ing 8.
- the sensor part 3f may be attached to another fibre with a connector 3g, whereby an advantage is achieved in that only the sensor part has to be re- placed if an arc should damage the fibre.
- a PIN diode or a phototransistor con ⁇ verts a light pulse arrived along the fibre into a current pulse which is amplified in a preamplifier 9 having adjustable amplification.
- a band pass filter 10 is connected which allows the passage of signals typical of the light of the arc.
- an adj-ustable comparator 11 is connected which controls the relay 12, if the signal to the comparator exceeds a preset level.
- the release circuit of the circuit-breaker is connected to extend through the contacts 6 of the re ⁇ lay 12.
- a wavelength filter 13 allowing the passage of blue and ultraviolet light is connected in front of the photosensor 7 for improving the selectivity of the detection.
- the wavelength filter 13 may also be fixed ⁇ ly integrated to the photosensor 7.
- the relay 12 may also be effected by means of semi-conductors.
- FIG 3 shows the respective structure when it is provided with a testing part for intermittently checking the condition of the device.
- the testing part comprises a light source 14 and a control unit 15 thereof.
- the fibre 3 has no free end as in the preceding example; instead, one end thereof is con ⁇ nected to the light source 14, which is controlled by the control unit so that it sends a short test pulse into the fibre e.g. at the intervals of 5 seconds, thus checking the condition of the device.
- the control unit 15 and the band pass filter 10 are connected through the comparators 11 to a logic unit 17, which generates its output signals F and G on' the basis of its input signals K and L.
- the output signal F gives an alarm of a fault through a buzzer 18 if the input signal K corresponds to the logical 1 and the input signal L to the logical 0.
- the output signal G con- trols the circuit-breaker through the contacts 6 of the relay 12 if the value of the input signal L only corresponds to the logical 1.
- the connection of the arc relay to the circuit-breaker is not more closely shown in the figures because it is effected in a manner known per se and does not belong to the basic idea of the invention.
- the optical fibre 3 required for the collecting of light is formed, as usually, by a core and a cladd ⁇ ing surrounding it, and a primary coating.
- the core 5 and the cladding may be made of plastic or glass. Due to the great light attenuation, however, previous fibres having a plastic core can have a length below 10 m only. The light attenuation of fibres having a glass core does not place any practical restrictions
- the fibre thus always comprises the core, the cladding and the primary coating, whereas the secondary and buffer
- Figure 4 shows still another example of a pick ⁇ up sensor formed at the end of a fibre and comprising
- a thin teflon hose 20 improving the sensitivity of. the sensor in the sideward direction is provided on that part of the looped optical fibre which acts as a pickup sen ⁇ sor.
- the teflon hose 20 can be left out as well.
- 25 fibre end need not necessarily be looped but it can be quite straight.
- the light enters the fibre from the side through the cladding.
- the entrance of the light into the fibre from the end of the fibre is prevented with a light shield.
- the protective sheath 21 made of bright plastic and surrounding the fibre loop is attached to the outer end of the arm.
- the protective sheath 21 is filled with a trans ⁇ parent resin filler 22 surrounding the loop.
- the pickup sensor may be provided with any trans- parent coating which guarantees a sufficient sensitiv ⁇ ity; the rest of the fibre may be provided with any opaque coating, as stated already in connection with Figure 1.
- the in ⁇ vention is not restricted thereto, but it can be mod ⁇ ified in various ways within the scope of the inven- tive idea defined in the attached claims. So the elec ⁇ tronics unit 4, for instance, can also be effected by means of switching transistors.
- the selectivity of the arc relay can be improved not only by wavelength filtration but also by connecting the light detection to some other phenomenon relating to the arc, such as a current change, and accept as an arc only events in which a change exceeding a certain limit occurs in both quantities.
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Keying Circuit Devices (AREA)
- Peptides Or Proteins (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8922316A GB2225186B (en) | 1987-04-14 | 1988-04-07 | An arc relay |
DE3890265A DE3890265C2 (de) | 1987-04-14 | 1988-04-07 | Lichtbogenrelais |
DE19883890265 DE3890265T1 (de) | 1987-04-14 | 1988-04-07 | Lichtbogenrelais |
NO885373A NO173415C (no) | 1987-04-14 | 1988-12-01 | Lysbuerele |
DK504289A DK165085C (da) | 1987-04-14 | 1989-10-11 | Lysbuerelae |
SE8903348A SE462544B (sv) | 1987-04-14 | 1989-10-12 | Ljusbaagsrelae |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI871627A FI77952C (fi) | 1987-04-14 | 1987-04-14 | Ljusbaogsrelae. |
FI871627 | 1987-04-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1988008217A1 true WO1988008217A1 (en) | 1988-10-20 |
Family
ID=8524318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI1988/000052 WO1988008217A1 (en) | 1987-04-14 | 1988-04-07 | An arc relay |
Country Status (8)
Country | Link |
---|---|
CH (1) | CH676174A5 (da) |
DE (1) | DE3890265C2 (da) |
DK (1) | DK165085C (da) |
FI (1) | FI77952C (da) |
GB (1) | GB2225186B (da) |
NO (1) | NO173415C (da) |
SE (1) | SE462544B (da) |
WO (1) | WO1988008217A1 (da) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992010845A1 (de) * | 1990-12-07 | 1992-06-25 | Elin Energieversorgung Gesellschaft M.B.H. | Schaltungsanordnung und messwertempfänger zur erfassung und messung von lichtquellen |
FR2674337A1 (fr) * | 1991-03-21 | 1992-09-25 | Alsthom Gec | Dispositif pour la detection d'effluves visuels dans une enceinte fermee et equipement d'un tableau electrique par un tel dispositif. |
EP0508638A2 (en) * | 1991-03-28 | 1992-10-14 | Eaton Corporation | Field sensing arc detection |
WO1995008857A1 (de) * | 1993-09-21 | 1995-03-30 | Klöckner-Moeller Gmbh | Gegen störlichtbögen gesicherte schaltanlage zur verteilung elektrischer energie |
WO1996030987A1 (de) * | 1995-03-30 | 1996-10-03 | Klöckner-Moeller Gmbh | Detektor für störlichtbögen in schaltanlagen zur verteilung elektrischer energie |
US5940547A (en) * | 1995-03-30 | 1999-08-17 | Klockner-Moeller Gmbh | Optical fiber accidental arc detector for an electric power distribution switching device |
DE19963024A1 (de) * | 1999-12-24 | 2001-06-28 | Moeller Gmbh | Optischer Störlichtbogensensor |
EP1538722A2 (en) * | 2003-12-05 | 2005-06-08 | Eaton Corporation | Apparatus and method employing an optical fiber for closed-loop feedback detection of arcing faults |
CN100461571C (zh) * | 2006-08-04 | 2009-02-11 | 李孝杰 | 一种利用金属导线与光纤混合电缆供电的方法 |
EP2175536A1 (en) * | 2008-10-08 | 2010-04-14 | Abb Ab | An arc monitor |
CN101938108A (zh) * | 2009-06-30 | 2011-01-05 | 通用电气公司 | 电弧闪光检测 |
DE102009031647A1 (de) | 2009-07-03 | 2011-01-05 | Moeller Gmbh | Strombegrenzungsvorrichtung |
WO2011069297A1 (en) | 2009-12-11 | 2011-06-16 | Areva T&D Uk Ltd. | Method for arc detection and devices thereof |
US8319173B2 (en) | 2008-09-19 | 2012-11-27 | Schweitzer Engineering Laboratories Inc | Arc flash protection with self-test |
US8451572B2 (en) | 2008-09-19 | 2013-05-28 | Schweitzer Engineering Laboratories Inc | Protective device with metering and oscillography |
US8593769B2 (en) | 2008-09-19 | 2013-11-26 | Schweitzer Engineering Laboratories Inc | Secure arc flash detection |
US8664961B2 (en) | 2008-09-19 | 2014-03-04 | Schweitzer Engineering Laboratories Inc | Validation of arc flash detection systems |
US8735798B2 (en) | 2008-09-19 | 2014-05-27 | Schweitzer Engineering Laboratories Inc | Electro-optical radiation collector for arc flash detection |
EP2838172A3 (de) * | 2013-08-14 | 2015-03-25 | Availon GmbH | Vorrichtung und Verfahren zur Detektion von Störlichtbögen |
US9438028B2 (en) | 2012-08-31 | 2016-09-06 | Schweitzer Engineering Laboratories, Inc. | Motor relay with integrated arc-flash detection |
RU2631056C1 (ru) * | 2016-12-30 | 2017-09-18 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") | Совмещённый волоконно-оптический трёхфазный датчик открытой электрической дуги |
FR3080684A1 (fr) * | 2018-04-30 | 2019-11-01 | Airbus Helicopters | Dispositif de detection pour detecter un arc electrique par fibre, architecture electrique et procede |
WO2020174267A1 (en) * | 2019-02-28 | 2020-09-03 | Abb Schweiz Ag | Connector for electric vehicle supply equipment |
US10804689B2 (en) | 2016-11-18 | 2020-10-13 | Schweitzer Engineering Laboratories, Inc. | Methods and systems for evaluating arc flash exposure hazard |
US11264190B2 (en) | 2019-09-23 | 2022-03-01 | Glen Payne | Arc flash detection systems |
US11837862B2 (en) | 2020-10-09 | 2023-12-05 | Schweitzer Engineering Laboratories, Inc. | Arc-flash sensor using optical fiber |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9212672U1 (de) * | 1992-09-21 | 1994-01-27 | Kloeckner Moeller Gmbh | Einrichtung zur Erkennung von Störlichtbögen, insbesondere an Sammelschienenanordnungen in Niederspannungs-Schaltanlagen |
AT405582B (de) * | 1995-10-30 | 1999-09-27 | Ruebig Ges M B H & Co Kg | Vorrichtung zum behandeln eines werkstückes in einer gasentladung |
DE19601639A1 (de) * | 1996-01-18 | 1997-07-24 | Abb Patent Gmbh | Auslöseeinrichtung für Hoch-, Mittel- oder Niederspannungsschaltanlagen bei Auftreten eines Störlichtbogens |
DE19708424B4 (de) * | 1997-03-01 | 2006-09-28 | Moeller Gmbh | Prüfvorrichtung und Prüfverfahren für Störlichtbogensensoren |
US6433976B1 (en) * | 1999-09-24 | 2002-08-13 | Square D Company | Instantaneous arc fault light detector with resistance to false tripping |
WO2002021657A1 (en) * | 2000-09-01 | 2002-03-14 | The Johns Hopkins University | Fiber optic light sensor system |
PL1710592T3 (pl) * | 2005-04-08 | 2011-09-30 | Eaton Ind Gmbh | Urządzenie do wykrywania zakłócającego łuku elektrycznego |
DE102014112723A1 (de) | 2014-09-04 | 2016-03-10 | Eaton Industries Austria Gmbh | Verfahren zur Unterscheidung eines Lichtbogens von einem leuchtenden Gas enthaltend zumindest Metalldampf |
DE102015220162A1 (de) * | 2015-10-16 | 2017-04-20 | Robert Bosch Gmbh | Steuergerät für ein Fahrzeug mit einem Lichtbogensensor |
FR3069951B1 (fr) * | 2017-08-03 | 2019-08-09 | Schneider Electric Industries Sas | Procede et dispositif de protection contre les defauts d'arc interne dans un systeme de distribution electrique, et armoire electrique comportant un tel dispositif |
DE102020210646A1 (de) * | 2020-08-21 | 2022-02-24 | Siemens Energy Global GmbH & Co. KG | Schaltanlage für Mittel- und/oder Hochspannungen und Verfahren zum Datenaustausch in der Schaltanlage |
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DE2447240A1 (de) * | 1974-09-11 | 1976-03-25 | Bbc Brown Boveri & Cie | Einrichtung zur erfassung und signalisierung von in einem geschlossenen behaelter auftretendem licht |
WO1980001442A1 (en) * | 1978-12-27 | 1980-07-10 | Bbc Brown Boveri & Cie | Supervision device with an optical detector for electrical arcs in a circuit-breaker |
DE3129041A1 (de) * | 1981-07-23 | 1983-02-03 | BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau | Faseroptischer sensor zum erfassen von elektrischen lichtbogenentladungen |
US4418338A (en) * | 1980-11-20 | 1983-11-29 | Burt Dennis W | Optical fibre U.V. and/or I.R. line fire detector |
DE3441870A1 (de) * | 1984-11-16 | 1985-06-27 | Ritter Starkstromtechnik GmbH & Co, 4600 Dortmund | Einrichtung zur erfassung und beseitigung von stoerlichtboegen |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CH665313A5 (de) * | 1985-01-14 | 1988-04-29 | Sprecher Energie Ag | Gekapselte hochspannungs-anlage. |
-
1987
- 1987-04-14 FI FI871627A patent/FI77952C/fi not_active IP Right Cessation
-
1988
- 1988-04-07 WO PCT/FI1988/000052 patent/WO1988008217A1/en active Application Filing
- 1988-04-07 GB GB8922316A patent/GB2225186B/en not_active Expired - Lifetime
- 1988-04-07 CH CH462888A patent/CH676174A5/de not_active IP Right Cessation
- 1988-04-07 DE DE3890265A patent/DE3890265C2/de not_active Ceased
- 1988-12-01 NO NO885373A patent/NO173415C/no not_active IP Right Cessation
-
1989
- 1989-10-11 DK DK504289A patent/DK165085C/da not_active IP Right Cessation
- 1989-10-12 SE SE8903348A patent/SE462544B/sv not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2447240A1 (de) * | 1974-09-11 | 1976-03-25 | Bbc Brown Boveri & Cie | Einrichtung zur erfassung und signalisierung von in einem geschlossenen behaelter auftretendem licht |
WO1980001442A1 (en) * | 1978-12-27 | 1980-07-10 | Bbc Brown Boveri & Cie | Supervision device with an optical detector for electrical arcs in a circuit-breaker |
US4418338A (en) * | 1980-11-20 | 1983-11-29 | Burt Dennis W | Optical fibre U.V. and/or I.R. line fire detector |
DE3129041A1 (de) * | 1981-07-23 | 1983-02-03 | BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau | Faseroptischer sensor zum erfassen von elektrischen lichtbogenentladungen |
DE3441870A1 (de) * | 1984-11-16 | 1985-06-27 | Ritter Starkstromtechnik GmbH & Co, 4600 Dortmund | Einrichtung zur erfassung und beseitigung von stoerlichtboegen |
Cited By (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992010845A1 (de) * | 1990-12-07 | 1992-06-25 | Elin Energieversorgung Gesellschaft M.B.H. | Schaltungsanordnung und messwertempfänger zur erfassung und messung von lichtquellen |
FR2674337A1 (fr) * | 1991-03-21 | 1992-09-25 | Alsthom Gec | Dispositif pour la detection d'effluves visuels dans une enceinte fermee et equipement d'un tableau electrique par un tel dispositif. |
EP0508638A2 (en) * | 1991-03-28 | 1992-10-14 | Eaton Corporation | Field sensing arc detection |
EP0508638A3 (en) * | 1991-03-28 | 1993-04-07 | Eaton Corporation | Field sensing arc detection |
US5650902A (en) * | 1993-09-21 | 1997-07-22 | Klockner-Moeller Gmbh | Substation for the distribution of electrical energy protected against arcing faults |
WO1995008857A1 (de) * | 1993-09-21 | 1995-03-30 | Klöckner-Moeller Gmbh | Gegen störlichtbögen gesicherte schaltanlage zur verteilung elektrischer energie |
WO1996030987A1 (de) * | 1995-03-30 | 1996-10-03 | Klöckner-Moeller Gmbh | Detektor für störlichtbögen in schaltanlagen zur verteilung elektrischer energie |
AU697914B2 (en) * | 1995-03-30 | 1998-10-22 | Klockner-Moeller Gmbh | Accidental arc detector for electric power distribution switching equipments |
US5940547A (en) * | 1995-03-30 | 1999-08-17 | Klockner-Moeller Gmbh | Optical fiber accidental arc detector for an electric power distribution switching device |
DE19963024A1 (de) * | 1999-12-24 | 2001-06-28 | Moeller Gmbh | Optischer Störlichtbogensensor |
DE19963024B4 (de) * | 1999-12-24 | 2008-10-16 | Moeller Gmbh | Optischer Störlichtbogensensor |
EP1538722A3 (en) * | 2003-12-05 | 2010-11-24 | Eaton Corporation | Apparatus and method employing an optical fiber for closed-loop feedback detection of arcing faults |
EP1538722A2 (en) * | 2003-12-05 | 2005-06-08 | Eaton Corporation | Apparatus and method employing an optical fiber for closed-loop feedback detection of arcing faults |
CN100461571C (zh) * | 2006-08-04 | 2009-02-11 | 李孝杰 | 一种利用金属导线与光纤混合电缆供电的方法 |
US8451572B2 (en) | 2008-09-19 | 2013-05-28 | Schweitzer Engineering Laboratories Inc | Protective device with metering and oscillography |
US8675329B2 (en) | 2008-09-19 | 2014-03-18 | Schweitzer Engineering Laboratories Inc | Protective device with metering and oscillography |
US9515475B2 (en) | 2008-09-19 | 2016-12-06 | Schweitzer Engineering Laboratories, Inc. | Electro-optical radiation collector for arc flash detection |
US9046391B2 (en) | 2008-09-19 | 2015-06-02 | Schweitzer Engineering Laboratories, Inc. | Arc flash protection system with self-test |
US8803069B2 (en) | 2008-09-19 | 2014-08-12 | Schweitzer Engineering Laboratories, Inc. | Electro-optical radiation collector for arc flash detection |
US8319173B2 (en) | 2008-09-19 | 2012-11-27 | Schweitzer Engineering Laboratories Inc | Arc flash protection with self-test |
US8735798B2 (en) | 2008-09-19 | 2014-05-27 | Schweitzer Engineering Laboratories Inc | Electro-optical radiation collector for arc flash detection |
US8593769B2 (en) | 2008-09-19 | 2013-11-26 | Schweitzer Engineering Laboratories Inc | Secure arc flash detection |
US8664961B2 (en) | 2008-09-19 | 2014-03-04 | Schweitzer Engineering Laboratories Inc | Validation of arc flash detection systems |
US9653904B2 (en) | 2008-09-19 | 2017-05-16 | Schweitzer Engineering Laboratories, Inc. | Arc flash protection system with self-test |
EP2175536A1 (en) * | 2008-10-08 | 2010-04-14 | Abb Ab | An arc monitor |
CN101719659A (zh) * | 2008-10-08 | 2010-06-02 | Abb(瑞典)股份公司 | 电弧监控器 |
US9324527B2 (en) | 2008-10-08 | 2016-04-26 | Abb Technology Ltd | Arc monitor |
EP2270944A3 (en) * | 2009-06-30 | 2014-05-14 | General Electric Company | Arc flash detector |
CN101938108A (zh) * | 2009-06-30 | 2011-01-05 | 通用电气公司 | 电弧闪光检测 |
DE102009031647A1 (de) | 2009-07-03 | 2011-01-05 | Moeller Gmbh | Strombegrenzungsvorrichtung |
WO2011069297A1 (en) | 2009-12-11 | 2011-06-16 | Areva T&D Uk Ltd. | Method for arc detection and devices thereof |
US9438028B2 (en) | 2012-08-31 | 2016-09-06 | Schweitzer Engineering Laboratories, Inc. | Motor relay with integrated arc-flash detection |
EP2838172A3 (de) * | 2013-08-14 | 2015-03-25 | Availon GmbH | Vorrichtung und Verfahren zur Detektion von Störlichtbögen |
US10804689B2 (en) | 2016-11-18 | 2020-10-13 | Schweitzer Engineering Laboratories, Inc. | Methods and systems for evaluating arc flash exposure hazard |
RU2631056C1 (ru) * | 2016-12-30 | 2017-09-18 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") | Совмещённый волоконно-оптический трёхфазный датчик открытой электрической дуги |
FR3080684A1 (fr) * | 2018-04-30 | 2019-11-01 | Airbus Helicopters | Dispositif de detection pour detecter un arc electrique par fibre, architecture electrique et procede |
WO2020174267A1 (en) * | 2019-02-28 | 2020-09-03 | Abb Schweiz Ag | Connector for electric vehicle supply equipment |
CN113453945A (zh) * | 2019-02-28 | 2021-09-28 | Abb瑞士股份有限公司 | 用于电动车辆供电装备的连接器 |
US20210387537A1 (en) * | 2019-02-28 | 2021-12-16 | Abb Schweiz Ag | Connector for electric vehicle supply equipment |
US11264190B2 (en) | 2019-09-23 | 2022-03-01 | Glen Payne | Arc flash detection systems |
US11342141B2 (en) | 2019-09-23 | 2022-05-24 | Glen Payne | Coupler for arc flash detection systems |
US11837862B2 (en) | 2020-10-09 | 2023-12-05 | Schweitzer Engineering Laboratories, Inc. | Arc-flash sensor using optical fiber |
Also Published As
Publication number | Publication date |
---|---|
FI77952C (fi) | 1989-05-10 |
DK504289A (da) | 1989-10-11 |
NO173415B (no) | 1993-08-30 |
NO173415C (no) | 1993-12-08 |
NO885373D0 (no) | 1988-12-01 |
NO885373L (no) | 1988-12-01 |
SE8903348D0 (sv) | 1989-10-12 |
SE462544B (sv) | 1990-07-09 |
SE8903348L (sv) | 1989-10-12 |
DK165085C (da) | 1993-02-15 |
GB8922316D0 (en) | 1989-12-06 |
GB2225186B (en) | 1991-05-08 |
DK165085B (da) | 1992-10-05 |
DE3890265C2 (de) | 1998-02-19 |
FI77952B (fi) | 1989-01-31 |
FI871627A (fi) | 1988-10-15 |
DK504289D0 (da) | 1989-10-11 |
GB2225186A (en) | 1990-05-23 |
FI871627A0 (fi) | 1987-04-14 |
CH676174A5 (en) | 1990-12-14 |
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