CN101501806B - Switching unit - Google Patents

Switching unit Download PDF

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Publication number
CN101501806B
CN101501806B CN200780029528XA CN200780029528A CN101501806B CN 101501806 B CN101501806 B CN 101501806B CN 200780029528X A CN200780029528X A CN 200780029528XA CN 200780029528 A CN200780029528 A CN 200780029528A CN 101501806 B CN101501806 B CN 101501806B
Authority
CN
China
Prior art keywords
release
switch element
ratchet
release pin
element according
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.)
Expired - Fee Related
Application number
CN200780029528XA
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Chinese (zh)
Other versions
CN101501806A (en
Inventor
鲁德维格·比克尔
托马斯·里茨尔
克里斯托夫·韦伯
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.)
Siemens AG
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Siemens AG
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
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Publication of CN101501806A publication Critical patent/CN101501806A/en
Application granted granted Critical
Publication of CN101501806B publication Critical patent/CN101501806B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • 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
    • 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
    • H01H71/34—Electromagnetic mechanisms having two or more armatures controlled by a common winding

Abstract

The invention relates to the switching unit for the selective switching off of at least one consumer, having at least one contact point with a moveably mounted contact lever (4), an actuable hammer armature (7) for opening of the contact point by moving of the contact lever (4) and a switching lock (6) with a moveably mounted latch (5) and a moveably mounted tripping lever (3) being assigned to the latch (5). The tripping lever (3) is moveable between a latch-release-position and a latch-locking-position. The release of the latch (5) by the tripping lever (3) is time-delayed compared to the actuation of the contact lever (4) by the hammer armature (7).

Description

Switch element
Technical field
The present invention relates to a kind of switch element that is used for optionally disconnecting at least one user.
Background technology
Under the situation of the cascade of line protection switch or circuit breaker, selectivity is conclusive.In failure condition, should just cut off the protection mechanism in the place of approaching fault most.Therefore can be implemented in the failure condition is that problematic branch road quits work.This had an optionally main line protection switch by prior art cicada is a kind of.Yet purchase this main line protection switch and need high cost.In addition perhaps can use electronic installation to this, but can not put goods on the market owing to its high cost so far.
Summary of the invention
The objective of the invention is to, overcome these shortcomings of prior art.
This purpose realizes in this wise by a kind of switch element that is used for optionally disconnecting at least one user, promptly this switch element a) has at least one contact site, described contact site has the contact arm of installing movably, b) having steerable impact armature is used for disconnecting described contact site by moving of described contact arm, c) has latching device, described latching device comprises: the d) ratchet of installing movably, and e) corresponding to described ratchet, the release lever of An Zhuaning movably, described release lever can move between following position: f) pawl release position, described ratchet is released on described pawl release position, and g) ratchet stop position, described ratchet on described ratchet stop position by stop, h) wherein, discharging described ratchet by described release lever has realized with respect to the temporal delay of handling described contact arm by described impact armature, it is characterized in that also comprising i) release pin, described release pin j) be movably on steering, k) and have an emission surface that is used to be resisted against on the described release lever, and l) have the abutment face that is used to be supported on the described impact armature, described thus release pin is fixed in its position on described steering in the glitch-free running status of described switch element.Core of the present invention is that the release of latching device realizes in time after disconnecting the contact site.
Description of drawings
The present invention is described in detail with reference to accompanying drawing according to preferred embodiment below.Shown in the figure:
Fig. 1 is the schematic diagram according to switch element of the present invention according to first embodiment, and it is in glitch-free operating state;
Fig. 2 is the schematic diagram at the switch element shown in Fig. 1, wherein, because the short-circuit impact armature is handled;
Fig. 3 is the schematic diagram at the switch element shown in Fig. 1, and wherein, because not cut short circuit, the impact armature is handled and release pin has been handled release lever; And
Fig. 4 is the schematic diagram according to another embodiment of switch element of the present invention.
Embodiment
Below with reference to Fig. 1 to Fig. 3 first embodiment of the present invention is described.Switching device comprises the switch element of connecting voluntarily according to of the present invention 1, and its output is connected with many cable lines.Exist the switch element that another is connected voluntarily in every cable route, the user is connected to after this switch element again.These users generally are the equipment of the building aspect of standard.
Preposition switch element 1 comprises support plate 2, and release lever 3, contact arm 4 and ratchet 5 are installed on this support plate swingably.Support plate 2, release lever 3 and ratchet 5 are building blocks of latching device 6.The ratio release lever 3 of contact arm 4 designs is bigger.
In addition, switch element 1 comprises steerable impact armature 7 and the release pin of installing movably 8, and this release pin is resisted against and impacts on the armature 7.Release pin 8 is fixed in its position by impacting armature 7 in normal, the glitch-free operating state of switch element 1, and by the direction extruding of compression spring 9 to release lever 3.Impact armature 7 is moved and and then bump contact arm 4.Thus, thereby swing takes place and disconnects the contact site in contact arm 4, and contact arm 4 is subordinated to this contact site.After impact armature 7 was moved, release pin 8 no longer was fixed in its position and is quickened to the direction of release lever 3 by compression spring 9.Quality by suitably selecting release pin 8 and draw predetermined running time in the release highway section that is used for release pin 8 by the spring force of selection pressure spring 9 suitably, thus this release has realized in time the delay of opening with respect to the contact site.By the deflection of release lever 3, ratchet 5 is discharged by the release lever 3 of locking.
Yet, when short circuit is disconnected in the regular hour by the switch element of postposition, not discharging so, this is to return to its initial position again and before release pin 8 can be released release pin is together taken back simultaneously because impact armature 7.
Below the structural design that is in glitch-free state of switch unit 1 is described in detail.Support plate 2 has front side 10 and the dorsal part relative with front side 10.
Release lever 3 is installed in the support region 11 of below of support plate 2 swingably.Be provided with the fulcrum post 12 of circular cross section, it is passed in the space of the corresponding coupling in release lever 3 and the support plate 2 for this reason.Fulcrum post 12 defines supporting axis A.Being used to of forming in release lever 3 held the space of fulcrum post 12 corresponding to reference number 13.In addition, support plate 2 is installed on the fulcrum post 12 swingably.Release lever 3 is in the face of the front side 10 of support plate 2, and contact arm 4 is located at the dorsal part of support plate 2.Contact arm 4 is in the closed position of the switch.
Support plate 2 has support region 14 above support region 11, ratchet 5 is installed in this zone swingably.Be provided with the fulcrum post 15 of circular cross section, it is passed in the accommodation section of the corresponding coupling in ratchet 5 and the support plate 2 for this reason.Fulcrum post 15 defines supporting axis B.Being used in ratchet 5 held the accommodation section of fulcrum post 15 corresponding to reference number 16.Supporting axis A and B are parallel to each other.Ratchet 5 is positioned on the identical side of support plate 2 as release lever 3.This ratchet also just regards to the front side 10 of support plate 2.In addition, contact arm 4 is installed on the fulcrum post 15 swingably.
Release lever 3 has the support section 17 at center, and circular accommodation section 13 is in this section.Release arm 18 from support section 17 to being that downward first direction is extended basically.Release arm 18 has triggering face 19, and this triggering face is provided with 13 compartment of terrains, accommodation section.
In addition, release arm 20 extends to second direction from support region 17, and this direction is that first direction with release arm 18 is directed upwards towards on the contrary basically.Release arm 20 has straight stop surface 21, and this stop surface is provided with 13 compartment of terrains, accommodation section again.Stop surface 21 is substantially perpendicular to straight triggering face 19.Ratchet 5 has the retainer section of emptying 25, and the stop surface 21 that is in the release lever 3 in the glitch-free state is resisted against on this retainer section reliably.Retainer section 25 is provided with 16 compartment of terrains, accommodation section.
Tension spring 23 applies effect to contact arm 4 below fulcrum post 15, this spring is fixed on the fixing bearing-surface 24, and contact arm 4 is pulled to make position.
Connecting rod 26 is connected with ratchet 5 in the zone of retainer section 25, and this connecting rod is coupled ratchet 5 and handle 39 rigidly.Handle 39 hand steerables.Connecting rod 26, handle 39 and tension spring 23 are other building blocks of latching device 6.
In addition, switch element 1 has the fixing guide plate 27 that is arranged on support plate 2 belows, and it has following pilot hole 28 and top pilot hole 29, and these pilot holes are parallel to each other, and perpendicular to the axis A of fulcrum post 12 or 15, B extends.The release arm 18 of release lever 3 extends in the zone of pilot hole 29, and contact arm 4 then passes pilot hole 28 and stretches out.
Electric coil 31 is resisted against on the guide plate 27 in first side 30.Impact armature 7 and have the axis C of longitudinal center, and can move along the axis C of its longitudinal center.In addition, impact armature 7 and have the holding head 32 of magnetic and the impact protuberance of outwards giving prominence to from holding head 32 33 elongated, the jumper bar effect.Holding head 32 aspect-orienteds 30.Impact protuberance 33 and pass coil 31 and pilot hole 28.It is outstanding from guide plate 27 that this impacts protuberance, and vertically-have the position of certain intervals to stop with contact arm 4 on the direction of center-axis C.In contrast, holding head 32 is spaced apart with guide plate 27, and outstanding from coil 31.This holding head designs like this, makes it be not suitable for passing pilot hole 28.Impacting armature 7 remains on its initial position by the compression spring 42 that is resisted against on side 30 and the holding head 32.
Release pin 8 is guided movably by pilot hole 29, and this release pin has the axis D of longitudinal center that is parallel to the axis C of longitudinal center that impacts armature 7.In addition, release pin 8 has: elongated release portion section 34, and this section has the flat emission surface of front end 35; The backing arm of giving prominence to from release portion section 34 sides 36; And loading head 37, compression spring 9 is resisted against on this loading head.Compression spring 9 is bearing on the fixing bearing-surface 38, and by the direction of loading head 37 to emission surface 19 pressure is applied on the release pin 8.Backing arm 36 extends to always and impacts armature 7, and lies on the holding head 32.
Function to the switch element 1 that do not disconnected by the switch element of postposition within the duration of regulation under short-circuit conditions is described below.In the operating state of normal, no short circuit shown in Figure 1, contact arm 4 is in the close position, and the contact site is closed accordingly; Simultaneously, be resisted against on unshowned, the fixing contact with contact arm 4 direct-connected contacts 45 movably.Therefore formed the contact site by contact arm 4 with contact 45 and fixing contact.Based on the electric current through switch element 1, the contact site of coil 31 is connected in series at the rear portion, and wherein Gu Ding contact is in before the contact 45.
The contact arm 4 that tension spring 23 is used for having contact 45 pulls to the direction of fixing contact site.In addition, compression spring 9 will have backing arm 36 extruding towards the abutment face 40 of holding head 32 against holding head 32 by loading head 37.But release pin 8 is fixed in its position by this holding head 32, and compression spring 42 these holding heads apply effect.
Under the situation of short circuit, impact armature 7 and move towards compression spring 42 along the axis C of its longitudinal center by the coil 31 that is under the short circuit current now and is connected with input, wherein, holding head 32 is near guide plate 27.Impact protuberance 33 and utilize towards the shock surface 41 of contact arm 4 and impact, make this contact arm around axis B deflection and disconnect the contact site thus to contact arm 4.Movably contact 45 is also lifted by fixing contact, rearmounted thus switch element outage.Backing arm 36 no longer is resisted against on the holding head 32 owing to impacting moving of armature 7 now.Based on the mass-spring system that is formed by release pin 8 and compression spring 9, release pin 8 is pushed in a predetermined manner along axis D so freely.Because release pin 8 is non magnetic, it is not subjected to the influence in the magnetic field of coil 31.Release pin 8 can for example be made by plastics, pottery or graphite.
If short circuit is cut off in the regular hour by the switch element of postposition, impact armature 7 and back on the initial position of this armature by the compression spring 42 that is arranged in the coil 31, this compression spring is supported on the side 30 and holding head 32 of guide plate 27.Release pin 8 also may be pushed back in addition.Therefore holding head 32 pushes the abutment face 40 that relies on backing arm 36 again.The contact site is closed again.
When in certain duration, not disconnecting short circuit by rearmounted switch element, then release pin 8 move on the direction same by compression spring 9 with impacting armature 7 and extruding against the emission surface 19 of release lever 3, release lever 3 centers on axis A deflection thus.In addition, release pin 8 discharges the highway section through one section, and this highway section is exactly at the interval of inactive state basically between emission surface 35 and emission surface 19.Release arm 20 also deflects by the deflection of release lever 3, thus make stop surface 21 not with retainer section 25 engagement of ratchet 5.Ratchet 5 no longer locks now.Support plate 2 with ratchet 5 and release lever 3 rotates in a counter-clockwise direction around axis A by the power of tension spring 23, thereby makes contact arm 4 remain on open position.At this, the contact site keeps disconnecting.
After disconnecting short circuit, impact armature 7 comes back to it by compression spring 42 and also therefore release pin 80 is driven together at the initial position shown in Fig. 1.Release lever 3 deflects on its initial position again by unshowned torsionspring, thereby can connect circuit once more.By handle 39 is deflected into open position, ratchet 5 is turned back to its initial position again.
According to an optional embodiment, nonmagnetic release pin 8 is arranged in the coil 31 and passes this coil.Realized a kind of version of saving very much the space of switch element 1 thus.Coil 31 does not exert an influence to release pin 8, and this is non magnetic because of this release pin as previously mentioned.
Also can use other spring or parts to replace the spring that provides, these springs or parts produce corresponding power.Important only is, these parts are connected with employed spring, the extruding in other words of on corresponding direction, exerting pressure, thus interact with each assembly.Torsionspring can for example also be pulled.Fixing face can form the part of housing, and switch element 1 is arranged in this housing.
Below with reference to Fig. 4 an alternative embodiment of the invention is described.Same parts mark with the label identical with label among the foregoing embodiment, and can consult the explanation of previous embodiment at this point.Different but identical parts of function mark to cast aside in the identical label utilization on the structure.
Different with previous embodiment is, does not have independent release pin 8 according to the embodiment of Fig. 4.For this reason release lever 3 ' release arm 18 ' end freely on have inertia additives 43, so this release lever has extra high inertia.This external release arm 18 ' on also be connected with tension spring 44, this spring also is fixed on the contact arm 4.
Under situation about being short-circuited, impact armature 7 and strike contact arm 4 once more, thus this contact arm generation deflection and disconnect the contact site.Therefore tension spring 44 is by tensioning more consumingly.Release lever 3 ' have extra high inertia based on inertia additives 43, and lingeringly the deflection generation of contact arm 4 is reacted in time.If short circuit is cut off by the switch element of postposition, release lever 3 ' the be pulled to inflection point of contact arm 4 then by tension spring 44.Simultaneously, release arm 20 is handled, thereby ratchet 5 is discharged by the stop surface 21 of release arm 20.Then, ratchet 5 just can be handled by handle 39.
If short circuit disconnects at the switch element of timing period by postposition, then impact armature 7 and move to its original position once more by tension spring 42.The contact site is once more by contact arm 4 closures, and tension spring 44 is eliminated stress once more.Latching device 6 is not released.Under the situation that changes mounting means, also can use other spring, replace tension spring 44 as compression spring or torsionspring.According to further improvement project, can regulate by position or the stress to tension spring 44 from the outside.Can adjust time selectivity as required thus, also can realize selectivity constantly thereby make in multi-stage cascade.The position of tension spring 44 can change changeably by adjusting bolt, eccentric wheel or sliding wedge.
Switch element does not need electronic building brick.This device is designed to mechanical type.So this device has extra high reliability.

Claims (14)

1. switch element that is used for optionally disconnecting at least one user:
A) have at least one contact site, described contact site has the contact arm of installing movably (4),
B) have steerable impact armature (7) and be used for disconnecting described contact site by moving of described contact arm (4),
C) have latching device (6), described latching device comprises:
D) ratchet of installing movably (5) and
E) corresponding to release lever (3) described ratchet (5), that install movably, described release lever can move between following position:
F) pawl release position, described ratchet (5) on described pawl release position, be released and
G) ratchet stop position, described ratchet (5) on described ratchet stop position by stop,
H) wherein, discharging described ratchet (5) by described release lever (3) has realized it is characterized in that also comprising with respect to the temporal delay of handling described contact arm (4) by described impact armature (7)
I) release pin (8), described release pin
J) be movably on steering,
K) and have an emission surface (35) that is used to be resisted against on the described release lever (3), and
L) have the abutment face (40) that is used to be supported on the described impact armature (7), described thus release pin (8) is fixed in its position on described steering in the glitch-free running status of described switch element.
2. switch element according to claim 1 is characterized in that, by spring (9) described release pin (8) being exerted pressure on described steering is used to handle described release lever (3).
3. switch element according to claim 1 is characterized in that also comprising the electric coil (31) that is used to handle described impact armature (7).
4. switch element according to claim 2 is characterized in that also comprising the electric coil (31) that is used to handle described impact armature (7).
5. switch element according to claim 3 is characterized in that, described release pin (8) passes described coil (31).
6. switch element according to claim 4 is characterized in that, described release pin (8) passes described coil (31).
7. switch element according to claim 1 is characterized in that, described release pin (8) is non magnetic.
8. switch element according to claim 2 is characterized in that, described release pin (8) is non magnetic.
9. switch element according to claim 3 is characterized in that, described release pin (8) is non magnetic.
10. according to each described switch element in the claim 4 to 6, it is characterized in that described release pin (8) is non magnetic.
11. switch element according to claim 2, it is characterized in that, the described release pin (8) that is used to discharge described latching device (6) is through one section release highway section, and set by the quality and the described spring (9) of described release pin the running time that is used for described release highway section of wherein said release pin (8).
12. switch element according to claim 8, it is characterized in that, the described release pin (8) that is used to discharge described latching device (6) is through one section release highway section, and set by the quality and the described spring (9) of described release pin the running time that is used for described release highway section of wherein said release pin (8).
13. switch element according to claim 10, it is characterized in that, the described release pin (8) that is used to discharge described latching device (6) is through one section release highway section, and set by the quality and the described spring (9) of described release pin the running time that is used for described release highway section of wherein said release pin (8).
14. switch element that is used for optionally disconnecting at least one user:
A) have at least one contact site, described contact site has the contact arm of installing movably (4),
B) have exercisable impact armature (7) and be used for disconnecting described contact site by moving of described contact arm (4),
C) have latching device (6), described latching device comprises: d) ratchet of installing movably (5) and
E) corresponding to release lever (3 ') described ratchet (5), that install movably, described release lever can be shifted between following position:
F) pawl release position, described ratchet (5) on described pawl release position, be released and
G) ratchet stop position, described ratchet (5) on described ratchet stop position by stop,
H) wherein, discharge described ratchet (5) by described release lever (3 ') and realized it is characterized in that with respect to the temporal delay of operating described contact arm (4) by described impact armature (7),
I) described release lever (3 ') is connected with described contact arm (4) by spring (44) and has an inertia additives (43).
CN200780029528XA 2006-08-09 2007-07-31 Switching unit Expired - Fee Related CN101501806B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006037225.5 2006-08-09
DE200610037225 DE102006037225A1 (en) 2006-08-09 2006-08-09 Switching unit
PCT/EP2007/057867 WO2008017612A1 (en) 2006-08-09 2007-07-31 Switching unit

Publications (2)

Publication Number Publication Date
CN101501806A CN101501806A (en) 2009-08-05
CN101501806B true CN101501806B (en) 2011-12-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200780029528XA Expired - Fee Related CN101501806B (en) 2006-08-09 2007-07-31 Switching unit

Country Status (5)

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EP (1) EP2050115B1 (en)
CN (1) CN101501806B (en)
BR (1) BRPI0715410A2 (en)
DE (1) DE102006037225A1 (en)
WO (1) WO2008017612A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE493747T1 (en) * 2008-04-02 2011-01-15 Siemens Ag TRIGGER MECHANISM
DE102008030822A1 (en) * 2008-06-30 2010-01-07 Robert Seuffer Gmbh & Co. Kg Switching device with triggering device
DE102010004641B4 (en) * 2009-04-23 2021-02-18 Abb Ag Electromagnetic release system and installation switching device with an electromagnetic release system
CN102456518B (en) * 2010-10-28 2014-06-25 西门子公司 Tripping mechanism and switch device with same
DE102012210745A1 (en) * 2012-06-25 2014-01-02 Siemens Aktiengesellschaft trigger mechanism
DE102013211539B4 (en) * 2012-08-31 2020-08-06 Siemens Aktiengesellschaft Switching mechanism and electromechanical protective switching device
CN103346046A (en) * 2013-06-05 2013-10-09 温州大观电气有限公司 Switch trip device
GB2602968A (en) * 2021-01-20 2022-07-27 Eaton Intelligent Power Ltd Moving contact oscillating damper

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132194A1 (en) * 1981-08-14 1983-03-03 Horst Dipl.-Ing. 6900 Heidelberg Drubig Electromagnetic trip device
EP0272457B1 (en) * 1986-12-23 1992-01-15 Sprecher + Schuh AG Magnetic release for a selective operating circuit breaker
DE19735408A1 (en) * 1997-08-14 1999-02-18 Siemens Ag Switching mechanism e.g. for safety switch such as for overload or short-circuit
CN2480977Y (en) * 2001-06-06 2002-03-06 南寅 Circuit breaker with clock time delay mechanism
EP1473753A1 (en) * 2003-04-30 2004-11-03 Siemens Aktiengesellschaft Electromagnetic switch device
CN1700385A (en) * 2004-05-19 2005-11-23 伊顿公司 Circuit breaker with delay mechanism
CN2802710Y (en) * 2005-06-28 2006-08-02 汪祥余 Electromagnetic hydraulic circuit breaker

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2577712B1 (en) * 1985-02-14 1988-07-15 Telemecanique Electrique PROTECTION SWITCH
DE19919416A1 (en) * 1999-04-28 2000-11-02 Siemens Ag Protective switching device for multi-pole tripping
DE10354505B4 (en) * 2003-11-21 2006-01-12 Eti Elektroelement D.D. Electric auto switch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132194A1 (en) * 1981-08-14 1983-03-03 Horst Dipl.-Ing. 6900 Heidelberg Drubig Electromagnetic trip device
EP0272457B1 (en) * 1986-12-23 1992-01-15 Sprecher + Schuh AG Magnetic release for a selective operating circuit breaker
DE19735408A1 (en) * 1997-08-14 1999-02-18 Siemens Ag Switching mechanism e.g. for safety switch such as for overload or short-circuit
CN2480977Y (en) * 2001-06-06 2002-03-06 南寅 Circuit breaker with clock time delay mechanism
EP1473753A1 (en) * 2003-04-30 2004-11-03 Siemens Aktiengesellschaft Electromagnetic switch device
CN1700385A (en) * 2004-05-19 2005-11-23 伊顿公司 Circuit breaker with delay mechanism
CN2802710Y (en) * 2005-06-28 2006-08-02 汪祥余 Electromagnetic hydraulic circuit breaker

Also Published As

Publication number Publication date
EP2050115A1 (en) 2009-04-22
CN101501806A (en) 2009-08-05
BRPI0715410A2 (en) 2013-07-02
WO2008017612A1 (en) 2008-02-14
DE102006037225A1 (en) 2008-02-14
EP2050115B1 (en) 2015-07-29

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