EP1336185A1 - Electrical breaker device for current leakage, current overload and short-circuit protection - Google Patents
Electrical breaker device for current leakage, current overload and short-circuit protectionInfo
- Publication number
- EP1336185A1 EP1336185A1 EP01997825A EP01997825A EP1336185A1 EP 1336185 A1 EP1336185 A1 EP 1336185A1 EP 01997825 A EP01997825 A EP 01997825A EP 01997825 A EP01997825 A EP 01997825A EP 1336185 A1 EP1336185 A1 EP 1336185A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current
- short
- coil
- core
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000696 magnetic material Substances 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/142—Electrothermal mechanisms actuated due to change of magnetic permeability
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/28—Electromagnetic mechanisms with windings acting in conjunction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
- H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
- H01H71/322—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with plunger type armature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2463—Electromagnetic mechanisms with plunger type armatures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
- H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
- H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
Definitions
- the invention relates to an electrical switching device for fault, overcurrent and short-circuit current protection according to the preamble of claim 1.
- the currently known electrical switching devices if they are to be used for overcurrent and short-circuit current protection, have a thermal release in the form of a thermal bimetal which deflects when an overcurrent occurs and thereby releases a switch lock, as a result of which a contact point in the switching device is permanently opened.
- an electromagnetic release is provided, which has a magnetic core and a movable magnet armature, which are surrounded by a coil, with which the contact point is opened directly on the one hand and a switching lock is released, on the other hand, so that the contact point is permanently opened in this case.
- Two triggers must be provided for both triggering methods, namely the thermal trigger and the electromagnetic trigger.
- this switching device has a converter through which the current path (mains conductor) is passed; a secondary winding is arranged on the converter and is connected to an electromagnetic release in the form of a holding magnet or a blocking magnet release which is connected to a.
- the key switch acts so that the contact point is opened permanently.
- the object of the invention is to provide a switching device of the type mentioned, which is simplified compared to the known switching device.
- only one trigger is provided in a switching device, which is suitable for all of these protective measures.
- two permanent magnets which face each other with their poles of the same name, are provided, with a core made of magnetic material connected to one of the permanent magnets being provided between the poles of the same name of the permanent magnets, one of which is fixedly and the other guided movably.
- the permanent magnets and the core are at least partially surrounded by at least one coil, which is acted upon by a fault current, overcurrent or short-circuit current, so that when a current flows in the at least one coil, the magnetic field is changed such that a relative movement of the movable part takes place. which is transferred to the contact point directly or via the key switch.
- the arrangement acts as a short-circuit opener or short-circuit release, and when the coil is flowed through by an overcurrent, it heats the core of magnetic material and, if this consists of a material that saturates at higher temperatures goes as an overcurrent release. If residual current flows through the coil, the release acts as a residual current release.
- a first coil is provided which is connected to the secondary winding of a current transformer via an energy storage circuit, so that a fault current is thereby detected.
- a second coil which lies in the current path of the switching device and which, as a short-circuit protection and overcurrent protection coil, drives the movable part of the trigger according to the invention.
- the trigger is assigned a yoke as a conclusion, the fixed part being attached to the yoke.
- the magnets and the magnetic material touch in the idle state and are repelled when the current flows through the coils.
- the permanent magnets are kept at a distance in the idle state and the magnetic fields act in such a way that they attract the magnets when current flows through the coil.
- both parts are surrounded and guided by a coil body made of non-magnetic material.
- At least one of the contacting surfaces of the two parts can be coated with a non-stick layer. This ensures that gluing processes between the moving parts are avoided.
- a trigger 10 has a yoke 11 which is U-shaped with a web 12 and two legs 13 and 14 running perpendicularly thereto.
- a first permanent magnet 16 is attached to the leg 13 by means of a rivet 15, specifically with the north pole N on the leg 15.
- a second permanent magnet 17 is assigned to the trigger 10, the north pole N of which is adjacent to the leg 14, whereas the south pole S of the second permanent magnet 17 faces the south pole S of the first permanent magnet 16.
- a core 18 made of magnetic material, the permeability of which is dependent on the temperature in such a way that the core 18 saturates at elevated temperatures.
- the core is magnetically connected to the second permanent magnet 17.
- the two permanent magnets 16 and 17 together with the core 18 are surrounded by an inner coil body 19, which consists, for example, of plastic or the like.
- a first coil 20 is wound around the inner coil former and is surrounded by a second coil former 21, on the outside of which a second coil 22 is wound.
- the terminals 23 and 24 of the inner coil or first coil 20 are connected to an energy storage circuit 25, the input of which is connected to the secondary winding 26 of a converter 27, the primary winding of which is passed through a current path 28 in which a contact point 29 is located.
- the second coil 22 is located in the current path 28, and the ends of the current path 28 are connected to terminals 30 and 31.
- a plunger 33 connects to the north pole N of the second permanent magnet 17 and acts on the one hand via a switching lock 34 and on the other hand directly on the contact point 29, the lines of action being shown in broken lines.
- the plunger 23 is made of non-magnetic material and has a shoulder 35 which bears against the inner surface of the yoke 14, drawn in the switched-off state, so that the movement of the second permanent magnet 17 with the core 18 is limited.
- the energy storage circuit 25 is charged and a suitable magnetic field is generated via the coil 20, so that the two parts which touch separate and move into the triggered position due to the repulsion effect of the poles of the same name, see Fig., Arrive. As a result, the contact point 29 is permanently opened via the switching lock 34.
- the core 18 heats up; this changes the permeability of the core 18, so that it goes into saturation and is magnetically seen air. As a result, the two permanent magnets repel each other and the contact point 29 is permanently opened via the switching lock 34.
- the configuration according to the invention thus serves as a trigger for a fault current, overcurrent and short-circuit release. This is achieved by assigning the two permanent magnets to the core 18 within the coils 20 and 22.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Electromagnets (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10058075 | 2000-11-23 | ||
DE10058075A DE10058075A1 (en) | 2000-11-23 | 2000-11-23 | Electrical switching device for residual current, overcurrent and short-circuit current protection |
PCT/EP2001/012889 WO2002043095A1 (en) | 2000-11-23 | 2001-11-08 | Electrical breaker device for current leakage, current overload and short-circuit protection |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1336185A1 true EP1336185A1 (en) | 2003-08-20 |
EP1336185B1 EP1336185B1 (en) | 2004-09-01 |
Family
ID=7664327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01997825A Expired - Lifetime EP1336185B1 (en) | 2000-11-23 | 2001-11-08 | Electrical breaker device for current leakage, current overload and short-circuit protection |
Country Status (4)
Country | Link |
---|---|
US (1) | US7088207B2 (en) |
EP (1) | EP1336185B1 (en) |
DE (2) | DE10058075A1 (en) |
WO (1) | WO2002043095A1 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10222552A1 (en) * | 2000-11-23 | 2003-11-27 | Abb Patent Gmbh | Electrical trip switch mechanism comprises permanent magnets set into a coil former that respond to overload or short circuit current |
DE10211902A1 (en) * | 2002-03-18 | 2003-10-02 | Eti Elektroelement Dd | Miniature circuit breaker with fault current cut-off |
CN100472908C (en) * | 2006-06-20 | 2009-03-25 | 浙江正泰建筑电器有限公司 | Double-magnetic high sensitive earth leakage protective device |
FR2931291B1 (en) * | 2008-05-15 | 2010-08-13 | Sagem Defense Securite | ELECTROMECHANICAL / SEMICONDUCTOR MIXED PROTECTION SWITCH |
FR2940510B1 (en) * | 2008-12-22 | 2011-07-22 | Hager Electro Sas | MAGNETIC TRIPPING DEVICE FOR LINE PROTECTION APPARATUS HAVING AT LEAST TWO PROTECTED POLES |
DE102011052003B4 (en) * | 2011-07-20 | 2022-06-15 | Te Connectivity Germany Gmbh | Switching device with overload protection device and a first and a second actuating member |
ES2467937T3 (en) * | 2011-11-21 | 2014-06-13 | Abb Technology Ag | Thermo-magnetic trip mechanism for switches |
CN102723225A (en) * | 2012-01-04 | 2012-10-10 | 吴江市东泰电力特种开关有限公司 | Vacuum overload protector |
CN103219697A (en) * | 2012-01-19 | 2013-07-24 | 台达电子工业股份有限公司 | Operation method of integrated breaker module and solar power supply system |
US9013256B2 (en) * | 2012-03-16 | 2015-04-21 | Hubbell Incorporated | Solenoid coil having an enhanced magnetic field |
FR2989512B1 (en) * | 2012-04-17 | 2014-04-25 | Schneider Electric Ind Sas | CONTROL UNIT FOR CUTTING A LINE IN CASE OF OVERCURRENT IN THIS LINE AND CIRCUIT BREAKER AGAINST OVERCURRENT IN A LINE |
SI24088B (en) * | 2012-05-22 | 2017-07-31 | Nela Razvojni Center Za Elektroindustrijo In Elektroniko D.O.O. | Electric circuit overload protecting device and with integrated electricity consumption meter |
US9520713B2 (en) * | 2013-08-22 | 2016-12-13 | Varian Semiconductor Equipment Associates, Inc. | Fast switch fault current limiter |
DE102014117035A1 (en) * | 2014-11-20 | 2016-05-25 | Eaton Industries (Austria) Gmbh | Circuit breaker with passively heated and acting on an iron yoke of an electromagnetic release bimetallic element |
JP6558571B2 (en) * | 2015-07-01 | 2019-08-14 | パナソニックIpマネジメント株式会社 | Electromagnetic relay |
CN108074782B (en) * | 2017-12-05 | 2024-09-20 | 北京德威特电气科技股份有限公司 | Instantaneous switch and circuit breaker with same |
ES2931528T3 (en) * | 2018-08-10 | 2022-12-30 | Otis Elevator Co | Elevator Safety Equipment Drive Device |
CN109887812A (en) * | 2019-04-16 | 2019-06-14 | 天津加美特电气设备有限公司 | A kind of intelligent breaker of the automatic tripping breaking of power failure |
DE102021214610B3 (en) | 2021-12-17 | 2023-03-23 | Ellenberger & Poensgen Gmbh | Circuit breaker and motor vehicle with such a circuit breaker |
DE102021214611B3 (en) * | 2021-12-17 | 2023-03-23 | Ellenberger & Poensgen Gmbh | Circuit breaker and motor vehicle with such a circuit breaker |
FR3133479B3 (en) * | 2022-03-10 | 2024-03-29 | Hager Electro Sas | Actuator for an electrical protection device |
CN115036158A (en) * | 2022-04-28 | 2022-09-09 | 南京天卓电气科技有限公司 | Stable reclosing switch who divides |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT227820B (en) * | 1961-05-12 | 1963-06-10 | Biegelmeier Gottfried | Residual current circuit breaker and residual current relay with a release containing a permanent magnet |
DE1538370A1 (en) * | 1966-10-18 | 1970-02-12 | Hans Arnhold | Circuit breaker with electromagnetic, thermal and fault protection release |
DE1936090A1 (en) | 1968-07-19 | 1971-01-21 | Greimpex Gmbh Fabrikation & Ex | Mixing and conacting operations promoted - by electrostatic field |
DE1936080A1 (en) * | 1968-08-02 | 1970-06-25 | Maschf Augsburg Nuernberg Ag | Hydraulic lifting device |
US4288770A (en) * | 1979-11-28 | 1981-09-08 | General Electric Company | Thermal override for static trip circuit breakers |
US4301435A (en) * | 1980-06-23 | 1981-11-17 | General Electric Company | Flux shifter reset assembly |
DE3028900A1 (en) * | 1980-07-30 | 1982-02-25 | Brown, Boveri & Cie Ag, 6800 Mannheim | Conductor rail mounted overload cut=out switch - has magnet with thermomagnetic and heat conductive discs for quicker release at higher temp. |
DE3125145A1 (en) * | 1981-06-26 | 1983-01-13 | Haug & Co Vertriebs-Gesellschaft mbH, 7000 Stuttgart | Overcurrent fast-action disconnecter |
DE3136412A1 (en) * | 1981-09-14 | 1983-03-24 | Siemens AG, 1000 Berlin und 8000 München | COMBINED FAULT CURRENT AND CIRCUIT BREAKER |
DE19646243C1 (en) * | 1996-11-08 | 1997-10-23 | Siemens Ag | Electromagnetic difference current circuit-breaker release |
DE4312950A1 (en) * | 1993-04-21 | 1994-10-27 | Abb Patent Gmbh | Magnetic trigger for an electrical switching device |
US6002184A (en) * | 1997-09-17 | 1999-12-14 | Coactive Drive Corporation | Actuator with opposing repulsive magnetic forces |
-
2000
- 2000-11-23 DE DE10058075A patent/DE10058075A1/en not_active Withdrawn
-
2001
- 2001-11-08 EP EP01997825A patent/EP1336185B1/en not_active Expired - Lifetime
- 2001-11-08 DE DE50103492T patent/DE50103492D1/en not_active Expired - Fee Related
- 2001-11-08 WO PCT/EP2001/012889 patent/WO2002043095A1/en not_active Application Discontinuation
-
2003
- 2003-05-23 US US10/444,591 patent/US7088207B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0243095A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1336185B1 (en) | 2004-09-01 |
WO2002043095A1 (en) | 2002-05-30 |
DE10058075A1 (en) | 2002-06-06 |
US7088207B2 (en) | 2006-08-08 |
US20030235021A1 (en) | 2003-12-25 |
DE50103492D1 (en) | 2004-10-07 |
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