EP1829064A1 - Verfahren und vorrichtung zum sicheren betrieb eines schaltgerätes - Google Patents
Verfahren und vorrichtung zum sicheren betrieb eines schaltgerätesInfo
- Publication number
- EP1829064A1 EP1829064A1 EP05823788A EP05823788A EP1829064A1 EP 1829064 A1 EP1829064 A1 EP 1829064A1 EP 05823788 A EP05823788 A EP 05823788A EP 05823788 A EP05823788 A EP 05823788A EP 1829064 A1 EP1829064 A1 EP 1829064A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- switching
- switching device
- main contacts
- state
- 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
- 238000000034 method Methods 0.000 title claims abstract description 14
- 241001432959 Chernes Species 0.000 claims 1
- 125000000403 lignoceroyl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 239000007858 starting material Substances 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
- H01H3/00—Mechanisms for operating contacts
- H01H3/001—Means for preventing or breaking contact-welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0072—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 particular to three-phase switches
Definitions
- the present invention relates to a method for safe operation of a switching device according to the preamble of claim 1.
- switching devices in particular low-voltage switchgear, the current paths between an electrical supply device and consumers and thus their operating currents can be switched. In other words, by opening and closing current paths from the switching device, the connected consumers can be safely switched on and off.
- An electrical low-voltage switching device such as ⁇ example, a contactor, a circuit breaker or a Kompaktstar ter, has one or more so-called main contacts for switching the current paths, which can be controlled by one or more control magnets.
- the main contacts consist of a movable contact bridge and fixed contact pieces, to which the consumer and the supply device are connected.
- a corresponding on or off signal is given to the control magnets, whereupon they act with their armature on the movable contact bridges that the contact bridges perform a relative movement with respect to the fixed contacts and either close the current paths to be switched or to open.
- contact surfaces pre ⁇ are made of materials, such as silver alloys, which are used at these locations. probably on the contact bridge and the contacts are placed on ⁇ and have a certain thickness.
- the materials of the contact surfaces are subject to wear in each of the switching operations. Factors that can influence this wear are:
- the thickness of the materials applied to the contact surfaces will decrease.
- the switching path between the Druckflä ⁇ surfaces of the contact bridge and the contact pieces longer, which ultimately reduces the contact force when closing.
- the contacts will not close properly. Due to the resulting power interruptions or else by an increased switch-on bounce, it can then come to a contact heating and thus to an increasing melting of the contact material, which in turn can lead to a welding of the contact surfaces of the main contacts.
- the switching device can no longer safely turn off the consumer. This is just what happens with a welded th contact despite the switch-off at least the current ⁇ ground with the welded main contact on current- or remain energized, and thus the consumer ⁇ cher not overall separates completely from the supply. Thus, since the consumer remains in a non-safe state, the switching device is a potential Feh ⁇ ler provoke.
- Object of the present invention is to identify these particular potential sources of error and yaw accordingly to rea ⁇ .
- the present invention makes it possible with little effort ei ⁇ ne contact welding when switching off and thus to recognize a no longer safe operation of the switching device. If a contact welding is detected, the force element released by the release means breaks the relevant contact weld.
- a release means for a Kraftele ⁇ ment is provided for breaking the main contacts, which in a first state remains as long as the main contacts are closed at power-up and opened at power off, and which is transferred to a second state when at least one of the main contacts is welded after switching off.
- the further operation of the switching device can be interrupted even after switching off.
- corresponding warning signals can be generated which indicate the non-safe operation of the switching device.
- a multi-pole switching device such as a contactor
- Circuit breaker or a compact feeder and in particular ⁇ safe operation of a three-pole switching device ge ⁇ guaranteed.
- FIG. 2 shows a first embodiment of the device according to the invention with a welded main contact
- FIG 3 shows a second embodiment of the device according to the invention with a welded main contact.
- Step b) transferring the release agent into a second
- a release means for a force element for breaking up the main contacts, which remains in a first state as long as the main contacts are closed when switching on and are opened when they are switched off.
- the release means is transferred to a second state, if after turning off at least one of the main contacts is welded, that is, that the release means releases the force element in this second state.
- Mechani ⁇ cal means for transferring the release agent are provided in the second state, which are in operative connection with the contact bridges and with the release agent. The release agent can interrupt the further operation of the switching device, if after switching off the release agent has moved to the second state.
- FIG 2 shows schematically the structure of a switching device, in which the inventive method and the inventive Device used.
- a control magnet 2, which serves as an electromagnetic drive for the main contacts 1 can be supplied via the terminals Al and A2 for switching on and off with power.
- an excitation coil 19 of the control magnet 2 is usually energized, however, de-energized when switching ⁇ off.
- FIG 2 of STEU ⁇ is ermagnet 2 de-energized.
- the switching device is thus in the off state.
- the main contacts 1 are thereby opened by the force acting on the contact bridges by a return spring 29 of the electromagnetic drive 2, and thus the consumers of the supply device, here by the three pole paths L1-L3, separated.
- FIG 2 acts when turning off an armature 12 of the control magnet 2 via an angle lever 7, an actuating slide 6 and a large pivot lever 5 and a small pivot lever 4 on the contact slide 3.
- the large pivot lever 5 is operated with its right lever arm shown to the pole path L3 belonging contact slide 3. In the left lever arm of the large pivot lever 5 is in the center of the small pivot lever 5
- Swivel lever 4 articulated in a pivot point 23.
- the left lever arm of the small pivot lever 4 thereby actuates the contact slide 3 of the left pole path Ll and the right lever arm of the small pivot lever 4, the contact slide 3 of the middle pole path L2.
- the large pivoting lever 5 is mounted in a disposed between the lever arms further pivot point 24 in the lower part of the actuating slide 6.
- FIG 2 is further provides a fault occurs Darge ⁇ .
- at least one main contact 1 in the present ⁇ the case, the contact 1 'and 1''of the pole path L3, welded.
- the other two main contacts 1 of the pole paths Ll and L2, however, have opened after switching off. Since the contact point 1 of the pole path L3 is welded, the contact ⁇ slider 3 of the pole path L3 is blocked. Both the small one Swing lever 4 and the large pivot lever 5 but now swing so that at least the contact points of the pole paths Ll and L2 are opened.
- mechanical means 3-5, 16, 17 now transfer the release agent S into the second state, the mechanical means 3-4, 16, 17 being in operative connection with the contact bridges and with the release means S.
- the release means S here realized in the example of FIG 2 as a locking slide, is connected via a connecting plate 17 and a compensating plate 16 with a further upper lever arm of the large pivot lever 5 and with the small pivot lever 4 and with the contact slides 3 in a mechanical operative connection ,
- the further upper lever arm of the large Schwenkhe- lever 5 is guided by a bolt 25 in a slot 15 in the balance plate 16 so that the bolt 25 abuts in the slot 15 when a main contacts 1 is welded, so that the two pivot lever 4, the fifth can perform a compensation ⁇ pivot to each other.
- the force caused by the compensation pivoting force is transmitted via the stop on the compensating plate 16, which in turn shifts the connecting plate 17 by a compensating movement.
- the connection tab 17 actuates the release means S or the blocking slide.
- the blocking slide S are DA by a force element 10, such as free the ge Service ⁇ in FIG 2 th spring 10.
- the spring accumulator 10 acts via a plunger 8 on the upper side of the Betchan institutesschie ⁇ bers 6 with a corresponding force F. Part of this force acts as Aufbrechkraft FA on the contact slide 3 of the welded main contact 1.
- the compensating movement of the upper leg of the large pivot lever. 5 upwards is then limited by the pin 25 in the slot 15.
- the bolt 25 acts there for the large pivot lever 5 as a rotational ⁇ momentum support.
- the spring accumulator 10 is released by a locking tooth 13 of the locking slide S disengages from a retaining web 14 of the plunger 8.
- the spring accumulator 10 which is realized as a cylinder spring example, biased.
- FIG 2 is just the state of the switching device Darge ⁇ represents, in which the spring accumulator has triggered 10 and just not the welded contacts 1, 1 "of the main contact 1 of the right current path L3 has separated.
- the release means S can interrupt the continued operation of the switching device, if, after the switch from ⁇ the release means S, as shown, has entered the second state.
- the force F acting on the actuating slide 6 by the force element 10 is so great that the control magnet 2 can not overcome this when switching on.
- the main contacts 1 remain open.
- the release means S or a standing in operative connection with this component actuate an electrical switch U.
- a message signal can be output.
- the electrical connections 27, 28 can also be connected in series to the power supply of the excitation coil 29 of the control magnet 2, so that after passing the release means S in the second state, the power supply is interrupted by the electrical switch U at a switch-on.
- the main contacts 1 remain open.
- 3 shows a second embodiment of the device according to the invention with a welded main contact 1.
- FIG. 3 shows a modification of the embodiment shown in FIG.
- the contact load springs 11 are not based on a housing of the switching device, but in the contact slide 3 itself.
- the three contact slide 3 by means of bearings and bolts 23, 24 and 30 with the pivot levers 4, 5 articulated.
Landscapes
- Keying Circuit Devices (AREA)
- Air Bags (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Manufacture Of Switches (AREA)
- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004062269A DE102004062269A1 (de) | 2004-12-23 | 2004-12-23 | Verfahren und Vorrichtung zum sicheren Betrieb eines Schaltgerätes |
PCT/EP2005/057078 WO2006069960A1 (de) | 2004-12-23 | 2005-12-22 | Verfahren und vorrichtung zum sicheren betrieb eines schaltgerätes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1829064A1 true EP1829064A1 (de) | 2007-09-05 |
EP1829064B1 EP1829064B1 (de) | 2010-07-28 |
Family
ID=36035768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05823788A Not-in-force EP1829064B1 (de) | 2004-12-23 | 2005-12-22 | Verfahren und vorrichtung zum sicheren betrieb eines schaltgerätes |
Country Status (6)
Country | Link |
---|---|
US (1) | US7760055B2 (de) |
EP (1) | EP1829064B1 (de) |
CN (1) | CN101084562B (de) |
AT (1) | ATE475977T1 (de) |
DE (3) | DE102004062269A1 (de) |
WO (2) | WO2006069955A2 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5029731B2 (ja) * | 2010-07-08 | 2012-09-19 | 富士電機機器制御株式会社 | 電磁接触器 |
JP6365684B2 (ja) | 2014-12-05 | 2018-08-01 | オムロン株式会社 | 電磁継電器 |
JP6414453B2 (ja) | 2014-12-05 | 2018-10-31 | オムロン株式会社 | 電磁継電器 |
JP2016110843A (ja) | 2014-12-05 | 2016-06-20 | オムロン株式会社 | 電磁継電器 |
US10134551B2 (en) * | 2016-09-21 | 2018-11-20 | Astronics Advanced Electronic Systems Corp. | Galvanically isolated hybrid contactor |
DE102017220503B3 (de) * | 2017-11-16 | 2019-01-17 | Te Connectivity Germany Gmbh | Doppelt unterbrechender Schalter |
KR102007779B1 (ko) * | 2018-02-06 | 2019-08-07 | 엘에스산전 주식회사 | 접지스위치를 갖는 개폐장치 |
DE102018110919A1 (de) * | 2018-05-07 | 2019-11-07 | Tdk Electronics Ag | Schaltvorrichtung |
DE102019209747B3 (de) | 2019-07-03 | 2020-10-08 | Ellenberger & Poensgen Gmbh | Schutzschalter |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
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US2695345A (en) * | 1950-04-19 | 1954-11-23 | Ite Circuit Breaker Ltd | Blow open, blow closed circuit breaker |
US3958198A (en) * | 1973-11-19 | 1976-05-18 | International Standard Electric Corporation | Magneto system including a tiltable u-shaped armature |
CH614069A5 (de) * | 1977-03-31 | 1979-10-31 | Weber Ag Fab Elektro | |
FR2516304A1 (fr) * | 1981-11-09 | 1983-05-13 | Telemecanique Electrique | Interrupteur a commande mecanique et ouverture automatique |
FR2516298A1 (fr) * | 1981-11-09 | 1983-05-13 | Telemecanique Electrique | Appareil contacteur comportant des moyens d'ouverture automatique et un organe de commande locale |
FR2516297A1 (fr) * | 1981-11-09 | 1983-05-13 | Telemecanique Electrique | Appareil contacteur comportant des moyens d'ouverture automatique, des circuits de puissance et un dispositif de commande locale |
DE3540460A1 (de) * | 1985-11-14 | 1987-05-21 | Siemens Ag | Elektromagnetisches schaltgeraet |
DE3782499D1 (en) * | 1987-11-25 | 1992-12-10 | Square D Deutschland | Schuetz. |
JP2812810B2 (ja) * | 1990-02-14 | 1998-10-22 | 三菱電機株式会社 | 開閉器 |
GB2246909B (en) * | 1990-07-16 | 1995-02-22 | Terasaki Denki Sangyo Kk | Circuit breaker including forced contact parting mechanism capable of self-retaining under short circuit condition |
DE4205204C2 (de) * | 1992-02-20 | 1994-12-22 | Siemens Ag | Verfahren zum Betrieb eines Schaltschützes und Anordnung zur Durchführung des Verfahrens |
DE4427006A1 (de) * | 1994-07-29 | 1996-02-01 | Siemens Ag | Verfahren zur Bestimmung der Restlebensdauer von Kontakten in Schaltgeräten und zugehörige Anordnung |
DE4430382A1 (de) * | 1994-08-26 | 1996-02-29 | Siemens Ag | Elektromechanisches Schaltgerät |
DE19511795A1 (de) * | 1994-08-26 | 1996-10-02 | Siemens Ag | Elektromechanisches Schaltgerät |
DE19519756C1 (de) * | 1995-05-30 | 1996-07-25 | Siemens Ag | Elektromagnetisches Schaltgerät |
SE515261C2 (sv) | 1995-06-12 | 2001-07-09 | Abb Research Ltd | Kontaktorutrustning |
US5626604A (en) * | 1995-12-05 | 1997-05-06 | Cordis Corporation | Hand held stent crimping device |
DE69736676T2 (de) * | 1996-11-04 | 2007-01-11 | Advanced Stent Technologies, Inc., Pleasanton | Aufweitbarer doppelstent |
DE19716380C1 (de) * | 1997-04-18 | 1998-10-08 | Siemens Ag | Elektromagnetisches Schaltgerät |
DE19734224C1 (de) * | 1997-08-07 | 1999-02-04 | Siemens Ag | Verfahren und Vorrichtung zur Bestimmung von schaltgerätespezifischen Daten an Kontakten in Schaltgeräten und/oder zur Bestimmung von betriebsspezifischen Daten im damit geschalteten Netz |
DE19746735C2 (de) * | 1997-10-13 | 2003-11-06 | Simag Gmbh Systeme Und Instr F | NMR-Bildgebungsverfahren zur Darstellung, Positionsbestimmung oder funktionellen Kontrolle einer in ein Untersuchungsobjekt eingeführten Vorrichtung und Vorrichtung zur Verwendung in einem derartigen Verfahren |
DE19849393A1 (de) * | 1998-10-27 | 2000-05-04 | Abb Patent Gmbh | Schaltgerät mit einer Stellungs- oder Zustandsanzeige, insbesondere für einen Leitungsschutzschalter |
DZ2952A1 (fr) * | 1998-12-01 | 2004-03-15 | Schneider Electric Ind Sa | Conacteur électromécanique logeant dans un corps un électroaimant et un porte-contacts mobile. |
US20030055492A1 (en) * | 1999-08-20 | 2003-03-20 | Shaolian Samuel M. | Transluminally implantable venous valve |
DE19944461C1 (de) * | 1999-09-16 | 2001-01-11 | Siemens Ag | Überwachungsverfahren für ein elektromagnetisches Schaltgerät und hiermit korrespondierendes elektromagnetisches Schaltgerät |
DE19947105C2 (de) | 1999-09-30 | 2002-01-24 | Siemens Ag | Verfahren und zugehörige Anordnungen zum Schalten elektrischer Lastkreise |
JP4186409B2 (ja) * | 2000-10-30 | 2008-11-26 | 富士電機機器制御株式会社 | 回路しゃ断器 |
-
2004
- 2004-12-23 DE DE102004062269A patent/DE102004062269A1/de not_active Withdrawn
-
2005
- 2005-12-22 CN CN2005800439573A patent/CN101084562B/zh not_active Expired - Fee Related
- 2005-12-22 WO PCT/EP2005/057072 patent/WO2006069955A2/de active Application Filing
- 2005-12-22 DE DE502005010022T patent/DE502005010022D1/de active Active
- 2005-12-22 EP EP05823788A patent/EP1829064B1/de not_active Not-in-force
- 2005-12-22 WO PCT/EP2005/057078 patent/WO2006069960A1/de active Application Filing
- 2005-12-22 AT AT05823788T patent/ATE475977T1/de not_active IP Right Cessation
- 2005-12-22 DE DE112005003109.8T patent/DE112005003109B4/de not_active Expired - Fee Related
- 2005-12-22 US US11/793,770 patent/US7760055B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2006069960A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2006069955A3 (de) | 2006-08-24 |
ATE475977T1 (de) | 2010-08-15 |
WO2006069955A2 (de) | 2006-07-06 |
CN101084562A (zh) | 2007-12-05 |
DE112005003109B4 (de) | 2017-04-13 |
US20080129430A1 (en) | 2008-06-05 |
DE112005003109A5 (de) | 2008-01-10 |
CN101084562B (zh) | 2010-05-26 |
DE102004062269A1 (de) | 2006-07-13 |
WO2006069960A1 (de) | 2006-07-06 |
EP1829064B1 (de) | 2010-07-28 |
DE502005010022D1 (de) | 2010-09-09 |
US7760055B2 (en) | 2010-07-20 |
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Inventor name: ADUNKA, ROBERT Inventor name: WABNER, ALFC Inventor name: MITLMEIER, NORBERT Inventor name: HARTINGER, PETER Inventor name: KOPPMANN, BARDO Inventor name: NIEBLER, LUDWIG Inventor name: ZIMMERMANN, NORBERT Inventor name: POHL, FRITZ |
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