CN101763989B - Multi-phase electrical switch device with circuit breaking slide valve - Google Patents
Multi-phase electrical switch device with circuit breaking slide valve Download PDFInfo
- Publication number
- CN101763989B CN101763989B CN200910225475.XA CN200910225475A CN101763989B CN 101763989 B CN101763989 B CN 101763989B CN 200910225475 A CN200910225475 A CN 200910225475A CN 101763989 B CN101763989 B CN 101763989B
- Authority
- CN
- China
- Prior art keywords
- spool member
- slide valve
- arm
- circuit breaking
- coupling bar
- 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
Links
- 230000008878 coupling Effects 0.000 claims description 46
- 238000010168 coupling process Methods 0.000 claims description 46
- 238000005859 coupling reaction Methods 0.000 claims description 46
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 8
- 238000005192 partition Methods 0.000 description 7
- 230000004308 accommodation Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- 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
- H01H83/223—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 bimetal 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
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
Landscapes
- Breakers (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The invention relates to an electrical switch device, in particular to a multi-phase electrical switch device, which is equipped with a circuit breaking slide valve. The circuit breaking slide valve comprises a first slide valve component, a second slide valve component and a connecting rod, wherein the first slide valve component and the second slide valve component extend longitudinally and are smooth, the two slide valve components can mutually oppositely move on a sliding plane, and the connecting rod is hinged on the first slide valve component and the second slide valve component. The connecting rod comprises two arms arranged on different sides of the sliding plane, and the arms are connected with a connecting sheet penetrating through the sliding plane.
Description
Technical field
The present invention relates to a kind of electric switch equipment as described in the preamble according to claim 1, this electric switch equipment is with circuit breaking slide valve, this circuit breaking slide valve comprises first and second, longitudinal extension and level and smooth spool member, these two spool member can move relative to each other in a slip plane, and coupling bar hinged in the first and second spool member.
The invention particularly relates to a kind of multi-phase electrical switch device, it has the circuit breaker of a temperature-sensitive in each phase place, particularly a kind of thermo bimetal, this phase place and circuit breaking slide valve work together for transmitting the tripping action of at least one thermal cut-out on fast dynamic switch, wherein circuit breaking slide valve comprises first and second, longitudinal direction extends and level and smooth spool member, these two spool member can move relative to each other in a slip plane, and coupling bar hinged in the first and second spool member.
The invention still further relates to a kind of circuit breaking slide valve for electric switch equipment as described in the preamble according to claim 4, comprise first and second, longitudinal extension and level and smooth spool member, wherein these spool member can move relative to each other in a slip plane, and are included in coupling bar hinged in the first and second spool member.
Background technology
Such electric switch equipment can be such as a kind of overcurrent relay of temperature-sensitive, it has a thermo bimetal respectively in each phase place, this phase place is connected, for disconnecting contact position by the latching device of suitable circuit breaking slide valve with fast dynamic switch form.Such electric switch equipment also can be engine protection switch; it has a thermo bimetal respectively in each phase place; this phase place is connected with latching device by suitable circuit breaking slide valve; for disconnecting contact position, this latching device is the mechanical switch mechanism form that works together with tactile bridge.
When there is overcurrent, response is gone forward side by side line bend by the thermal cut-out being typically designed to thermo bimetal, the action of thermo bimetal is subsequently delivered on latching device by the drive link connected with circuit breaking slide valve, wherein when all thermo bimetals respond, specific for one power is applied on latching device by drive disk assembly, thus realizes effective open circuit.At this, these thermo bimetals are arranged usually like this, and namely its middle axis oriented normal ground is positioned on a plane and horizontal plane thereof; Bending of all thermo bimetals is carried out on plane bearing of trend, namely from back to front.Circuit breaking slide valve slides in a slip plane, the plane that this slip plane expands perpendicular to the middle longitudinal axis by thermo bimetal.
Because voltage or electric current interrupt in phase place, thus also will realize open circuit when thermo bimetal is not bending, so circuit breaking slide valve is made up of two spool member, it moves relative to each other on slip plane.Be provided with coupling bar in addition, itself and spool member are hinged, thus subsequently a spool member based on thermo bimetal during bending and attonity, another thermo bimetal is by movement and handle drive link, the end acted on the interruption pole of latching device by the spool member of movement of the coupling bar move distance that will return one section longer thus, thus based on drive link longer move distance and play the effect of effective open circuit.This can following detailed description:
When all thermo bimetals of all phase places bend, these phase places are by generation specific power, and this power is made up of each power of each thermo bimetal.When phase fault, only show the bending force of two thermo bimetals, to such an extent as to the move distance of drive link, the application point namely on latching device must improve, to make the power in fact realizing identical numerical value on each move distance.
Such multinomial electric switch equipment is such as existing in DE 199 49 530 A1 to be described, and is especially illustrated in Fig. 2 and affiliated specification part there.Circuit breaking slide valve keeps by a cover plate is fixing at this, and it is stuck on the housing of overcurrent relay regularly.This switchgear installs very complicated.
The device of circuit breaking slide valve is also known, in the apparatus coupling bar be designed to fork-shaped and two spool member be contained between the tooth of fork.It is also time-consuming that this known device is equipped especially in Auto-mounting flow process.
Summary of the invention
Therefore, the object of the invention is to, propose a kind of multinomial electric switch equipment with circuit breaking slide valve, it can form simply and can guarantee to improve automatic installation procedure in switchgear failure-free operation.
This object is realized by this kind of switchgear with the feature of claim 1 according to the present invention.This object is realized by the feature of claim 4 with reference to the circuit breaking slide valve being used for this kind of multinomial electric switch equipment.
The invention is characterized in, coupling bar comprises two arms be arranged on the not homonymy of slip plane, and it is connected with the brace through slip plane.
Thus, coupling bar is roughly S shape.First arm is positioned at the top of spool member, and the second arm is positioned at the below of spool member.Each arm can connect with a spool member.The installation feasibility be simplified is according to the advantageous effects of the design of circuit breaking slide valve of the present invention.In order to install, the first spool member be first installed in the housing of switchgear one for this reason and preset position on.Coupling bar is put again in second step.This will occur, the first arm of coupling bar is put the first spool member from top.Based on S shape, the second arm of coupling bar is positioned at the below of slip plane.In the 3rd step, then put the second spool member.This second spool member and then enter into a total slip plane with the first spool member, and the second arm of coupling components and the second spool member are together connected on the side close to the first arm of slip plane.Namely these three parts in turn stack, and this will be very beneficial for automatic installation.Circuit breaking slide valve directly can be installed in the housing on preposition and to pre-set in this position and carry out position adjustment.Therefore, can cancel a necessity, the circuit breaking slide valve namely made outside housing must to be placed in exactly on correct position and must to carry out intricately adjustment there.
According to a favourable embodiment, a kind of multinomial electric switch equipment, is characterized in that, a bolt is positioned on each arm of coupling bar, and this bolt and the coupling components in each spool member are together for hinge-coupled bar.In a particularly advantageous embodiment, in the first and second spool member, have a hole as coupling components respectively, wherein at least one is elongated hole.
Other favourable designs of the present invention and improvement project are provided by dependent claims.
Accompanying drawing explanation
The present invention is by according to illustrating that the accompanying drawing of embodiments of the invention illustrates the present invention and other favourable designs of the present invention and improvement project and advantage.Wherein:
Fig. 1 shows according to circuit breaking slide valve of the present invention,
Fig. 2 a-c shows a visual angle according to the housing opened of threephase switch equipment of the present invention in three installation steps of the circuit breaking slide valve according to Fig. 1.
Embodiment
First Fig. 1 is observed.It illustrates according to circuit breaking slide valve 1 of the present invention, for being arranged in three-phase electric switch equipment, such as, in three-phase temperature-sensitive overcurrent relay.Circuit breaking slide valve 1 is made up of two spool member, 14,13 and coupling bar 15.
Spool member 14 has a longitudinal extension and level and smooth portion's section 21, and vertically one-body molded in this section have and then the projection 22,23,24 of L-type, and its open pin 25 to 27 is in straight line and give prominence to identical direction separately.
Spool member 13 also has portion's section 28 of a longitudinal extension, the also one-body molded projection 29,30,31 having L-type in this section, its open pin 32 to 34 is also given prominence in one direction, wherein in installment state (as shown in the figure), and foot portion 25,32; 33; 27,34 give prominence to contrary direction separately.Foot portion 25,32; 26,33; 27,34 respectively between formed a spatial accommodation 10,11 or 12, for holding the end of thermo bimetal's bar, be arranged on switchgear at circuit breaking slide valve, such as, have in the temperature-sensitive overcurrent relay of existing thermal trip parts.Thermo bimetal's bar (not shown at this) is accommodated in foot portion 25,32; 26; 33; 27, to be located thereon between 34.Spool member 14,13 moves along an imaginary line in a slip plane, and this straight line parallel is in the narrow longitudinal side of spool member 13.14.
Coupling bar 15 perpendicular to portion's section 21 of longitudinal extension, and is not only hinged to rotationally in spool member 13 and is also hinged to rotationally in spool member 14.
When circuit breaking slide valve 1 is installed to switchgear, such as, in the overcurrent relay of a kind of temperature-sensitive and thermo bimetal is such as bending on direction of arrow P due to overcurrent time, this thermo bimetal also can on the shoulders on carry spool member 14, thus coupling bar 15 also can move and by the latching device of its free end joystick 16 and then switchgear on direction of arrow P.
Coupling bar 15 has the first arm 36, and the application point with latching device is positioned on the free end 16 of this arm, and it is positioned at the top of slip plane, also with regard to the top of spool member 14.One-body molded on the other end of the first arm 36 have brace 38, and it is almost passed down through slip plane perpendicular to the first arm 36 and extends.The end of brace 38 is provided with the second arm 40 (not shown in FIG, but can see on Fig. 2 b), this second arm is at slip plane, and namely the below of the second spool member 13 extends and to be almost parallel to this first arm and to extend on the contrary extending direction of the first arm 36.First arm 36, brace 38 and the second arm 40 form the structure of S shape like this, and this structure is passed to a certain extent between two spool member 13,14.
The free end of the second arm 40 has bolt 42 upward, and coupling bar 15 to be engaged to by this bolt in the hole 44 in spool member 13 and to be hinged to therefrom in spool member 13.
First arm 36 has another bolt (it is covered in FIG), and coupling bar 15 to be engaged in elongated hole 46 (not shown in FIG, but can see in fig. 2 a) by this bolt and to be hinged to therefrom in spool member 14.
Observe now Fig. 2 a-c.These illustrate the visual angle, local shown in the lower bottom base parts of temperature-sensitive overcurrent relay 50 in understructure mode.People can see the latter end of longitudinal wall 52 of housing and a part for transverse wall 54 and the second partition wall 56,58, and room in housing is divided into three chambers 60,62,64 by this second part of next door.Each chamber corresponds to thermo bimetal's circuit breaker (it is not shown).Be noted that parts one by one and assembly and temperature-sensitive overcurrent relay do not repeat them here, because its principle is all known in addition.
Fig. 2 a shows the first step when circuit breaking slide valve 1 is installed in the housing of overcurrent relay 50.Spool member 14 is placed on the latter end of partition wall 56,58.At this, the guiding bolt 66,68 be arranged on the narrow side of partition wall-latter end is pushed in the elongated hole in spool member, this elongated hole extends and together carries out a kind of guiding of aerofoil profile with guiding bolt 66,68 on the longitudinal extension direction of spool member 14, and causes spool member 14 to be parallel to the transverse shifting of housing cross wall 54.Afterwards the elongated hole 46 of the second bolt holding coupling bar can be opened towards longitudinal side of the below of spool member 14.
Fig. 2 b shows circuit breaking slide valve 1 and is installed to second step in the housing of overcurrent relay 50.Coupling bar 15 is placed in spool member 14 now, and then the bolt covered by the first arm 36 is engaged in elongated hole 46, and coupling bar 15 is hinged in spool member 14 thus.Bolt 42 on the free end of the second arm 40 is given prominence to upward from slip plane.
Can find out, the second arm 40 has L-type shape, and the local arm wherein accepting bolt 42 forms the long foot of L, and the one-body molded and local arm being parallel to the extend longitudinally direction of spool member 14 forms the short foot of L on brace.
Fig. 2 c shows circuit breaking slide valve 1 and is installed to third step in the housing of overcurrent relay 50.Spool member 13 is positioned on the latter end of partition wall 56,58, and namely in the below of spool member 14, thus spool member 13,14 can staggeredly from side each other in slip plane be slided.At this, other guiding bolt 69,70 (it is also arranged on the narrow side of partition wall-latter end, the below of aforementioned guiding bolt 66,68) is engaged in the elongated hole 45,49 of spool member 13, this elongated hole extends and together carries out a kind of guiding of aerofoil profile with guiding bolt 69,70 on the longitudinal extension direction of spool member 13, and causes spool member 13 to be parallel to the transverse wall 54 of housing and the transverse shifting of spool member 14.Spool member 13,14 mutual spacing are by the bolt 66,68 that leads; 69, the guiding setting of 70.When setting slide valve parts 13, the bolt 42 of coupling bar 15 is engaged in the hole 72 in spool member 13, therefore makes coupling bar 15 be hinged in spool member 13.
Illustrate in Fig. 2 a-c subsequently, effect when circuit breaking slide valve in the housing and thermal trip parts work together is installed.When three thermo bimetals are all bending, two spool member 13,14 will move together, such as, be moved to the left with direction of arrow P, and coupling bar 15 also moves in parallel with direction of arrow P (see Fig. 1).Displacement is determined by the degree of crook of thermo bimetal.Two spool member 13,14 move in parallel with equal distance segment.
When being contained in a thermo bimetal in the middle spatial accommodation 11 between free foot portion 26 and 33 and being not bending, general because interrupt in the phase place belonging in electric current, then this thermo bimetal makes spool member 13 keep motionless by free foot portion 33.Relative to spool member 13 transverse shifting, and then shearing motion will have been there is between two spool member 13 and 14 now in spool member 14 by the thermo bimetal that two keep bending.In this case, coupling bar 15 will rotate counterclockwise, and the rotating shaft that coupling bar 15 rotates is bolt 42, and it is by the hole 72 that is placed in rotationally in spool member 13.The L-type structure of the second lever arm 40 of coupling bar 15 is used for, when it rotates, the free end 16 of the first arm 36 of coupling bar 15 replys hop count distance doubly with direction of arrow P generally, this likely in afore-mentioned two spool member 13,14 equal move in parallel in reply.Therefore phase place failure protection is provided, very simple on the whole and circuit breaking slide valve 1 that is that be convenient to install can be directly installed in the housing of leggy electric switch equipment, be a kind of three-phase temperature-sensitive overcurrent relay here.
Reference numerals list
1 circuit breaking slide valve
10 spatial accommodations
11 spatial accommodations
12 spatial accommodations
13 spool member
14 spool member
15 coupling bars
21 partes glabra sections
22 L shape projections
23 L shape projections
24 L shape projections
25 free pin
26 free pin
27 free pin
28 longitudinal extension part sections
29 L shape projections
30 L shape projections
31 L shape projections
32 free pin
33 free pin
34 free pin
36 first arms
38 braces
40 second arms
42 bolts
44 holes
45 elongated holes
46 elongated holes
47 elongated holes
48 elongated holes
49 elongated holes
50 overcurrent relays
52 longitudinal walls
54 transverse walls
56 partition walls
58 partition walls
60 chambers
62 chambers
64 chambers
66 guiding bolts
68 guiding bolts
69 guiding bolts
70 guiding bolts
72 holes
Claims (8)
1. an electric switch equipment, described electric switch equipment is with circuit breaking slide valve, described circuit breaking slide valve comprises longitudinal extension and the first level and smooth spool member and the second spool member, described first spool member and the second spool member can move relative to each other in a slip plane, and in described first spool member and the second spool member hinged coupling bar, it is characterized in that, described coupling bar comprises two arms be arranged on the not homonymy of described slip plane, described arm is connected with the brace through described slip plane, coupling bar is roughly S shape, first arm is positioned at the top of spool member, second arm is positioned at the below of spool member, each arm can both connect with a spool member.
2. electric switch equipment according to claim 1, is characterized in that, a bolt is positioned on each arm of described coupling bar, and described bolt and the coupling components in described first spool member or the second spool member are together for hinged described coupling bar.
3. electric switch equipment according to claim 2, is characterized in that, in described first spool member and the second spool member, have a hole as described coupling components respectively, wherein at least one is elongated hole.
4. electric switch equipment according to claim 1, is characterized in that, described electric switch equipment is a kind of multi-phase electrical switch device.
5. the circuit breaking slide valve for electric switch equipment, comprise longitudinal extension and the first level and smooth spool member and the second spool member, wherein said first spool member and the second spool member can move relative to each other in a slip plane, and be included in coupling bar hinged in described first spool member and the second spool member, it is characterized in that, described coupling bar comprises two arms be arranged on the not homonymy of described slip plane, described arm is connected with the brace through described slip plane, coupling bar is roughly S shape, first arm is positioned at the top of spool member, second arm is positioned at the below of spool member, each arm can both connect with a spool member.
6. circuit breaking slide valve according to claim 5, is characterized in that, a bolt is positioned on each arm of described coupling bar, and described bolt and the coupling components in described first spool member or the second spool member are together for hinged described coupling bar.
7. circuit breaking slide valve according to claim 6, is characterized in that, in described first spool member and the second spool member, have a hole as described coupling components respectively, wherein at least one is elongated hole.
8. circuit breaking slide valve according to claim 5, is characterized in that, described circuit breaking slide valve is used for a kind of multi-phase electrical switch device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008062527.2A DE102008062527B4 (en) | 2008-12-16 | 2008-12-16 | Multi-phase electrical switching device with a trip slide and a trip slide |
| DE102008062527.2 | 2008-12-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101763989A CN101763989A (en) | 2010-06-30 |
| CN101763989B true CN101763989B (en) | 2015-01-28 |
Family
ID=41475535
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200015514U Expired - Fee Related CN201364864Y (en) | 2008-12-16 | 2009-01-15 | Multi-phase electrical switch device with circuit breaking slide valve |
| CN200910225475.XA Expired - Fee Related CN101763989B (en) | 2008-12-16 | 2009-12-16 | Multi-phase electrical switch device with circuit breaking slide valve |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200015514U Expired - Fee Related CN201364864Y (en) | 2008-12-16 | 2009-01-15 | Multi-phase electrical switch device with circuit breaking slide valve |
Country Status (4)
| Country | Link |
|---|---|
| CN (2) | CN201364864Y (en) |
| DE (1) | DE102008062527B4 (en) |
| FR (1) | FR2939957A1 (en) |
| IT (1) | IT1396625B1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008062527B4 (en) * | 2008-12-16 | 2022-08-11 | Abb Schweiz Ag | Multi-phase electrical switching device with a trip slide and a trip slide |
| CN201845719U (en) | 2010-03-18 | 2011-05-25 | Abb股份公司 | Electric over-current relay with modular structure |
| DE102014003421A1 (en) | 2013-03-28 | 2014-10-02 | Abb Ag | Electrical overcurrent relay |
| DE102014003263B4 (en) | 2013-03-28 | 2023-08-24 | Abb Schweiz Ag | Electrical overcurrent relay |
| DE202013002978U1 (en) | 2013-03-28 | 2013-05-02 | Abb Ag | Electrical overcurrent relay in modular design |
| DE102014003102B4 (en) | 2013-03-28 | 2021-04-29 | Abb Schweiz Ag | Electrical overcurrent relay |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4806897A (en) * | 1987-12-17 | 1989-02-21 | Eaton Corporation | Overload relay having adaptive differential mechanism |
| US6014803A (en) * | 1995-12-22 | 2000-01-18 | Siemens Ag | Thermal triggering system |
| CN1652279A (en) * | 2004-02-03 | 2005-08-10 | 富士电机机器制御株式会社 | Overload/open-phase tripping device for circuit breaker |
| CN101162660A (en) * | 2006-10-09 | 2008-04-16 | 阿雷瓦T&D股份公司 | Activation by contacts of an interrupter tube with double movement by an insulating tube |
| CN201364864Y (en) * | 2008-12-16 | 2009-12-16 | Abb股份有限公司 | Multi-phase electrical switch device with circuit breaking slide valve |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1121184B (en) | 1957-09-17 | 1962-01-04 | Emma Widmaier Geb Hoffmann | Circuit breaker with thermal overcurrent and magnetic short circuit release as well as manual operation |
| GB909010A (en) * | 1960-05-30 | 1962-10-24 | Ass Elect Ind | Improvements relating to protective relays for polyphase circuits |
| US3792401A (en) * | 1972-06-29 | 1974-02-12 | Westinghouse Electric Corp | Thermally responsive electrical device |
| DE7422977U (en) | 1974-07-05 | 1976-01-08 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Multi-phase thermally delayed overcurrent relay |
| GB2096397A (en) * | 1981-04-04 | 1982-10-13 | Crabtee Electrical Ind Ltd | Electric overload device |
| FR2516300A1 (en) * | 1981-11-09 | 1983-05-13 | Telemecanique Electrique | DIFFERENTIAL DEVICE FOR A POLYPHASE THERMAL RELAY |
| DE3401901A1 (en) * | 1984-01-20 | 1985-08-01 | Brown, Boveri & Cie Ag, 6800 Mannheim | Thermal overcurrent relay having an adjusting eccentric |
| ATE85156T1 (en) | 1987-07-24 | 1993-02-15 | Maier & Cie C | CALIBRATION OF THE THERMAL TRIP ELEMENT IN AN INSTALLATION BREAKER. |
| FR2667979B1 (en) | 1990-10-11 | 1994-04-01 | Telemecanique | DIFFERENTIAL THERMAL TRIGGER WITH BILAMES. |
| DE19949229B4 (en) | 1999-10-13 | 2007-09-13 | Abb Patent Gmbh | Trip valve assembly for a thermal overload relay or motor protection switch |
| DE19949530A1 (en) | 1999-10-14 | 2001-04-19 | Abb Patent Gmbh | Guide element for triggering slider in thermal overcurrent relay, comprises slider held by cover plate which is secured on housing of overcurrent relay |
| KR20040042627A (en) * | 2002-11-15 | 2004-05-20 | 엘지산전 주식회사 | small type thermal overload relay |
-
2008
- 2008-12-16 DE DE102008062527.2A patent/DE102008062527B4/en active Active
-
2009
- 2009-01-15 CN CNU2009200015514U patent/CN201364864Y/en not_active Expired - Fee Related
- 2009-10-28 FR FR0957565A patent/FR2939957A1/en not_active Withdrawn
- 2009-11-26 IT ITMI2009A002086A patent/IT1396625B1/en active
- 2009-12-16 CN CN200910225475.XA patent/CN101763989B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4806897A (en) * | 1987-12-17 | 1989-02-21 | Eaton Corporation | Overload relay having adaptive differential mechanism |
| US6014803A (en) * | 1995-12-22 | 2000-01-18 | Siemens Ag | Thermal triggering system |
| CN1652279A (en) * | 2004-02-03 | 2005-08-10 | 富士电机机器制御株式会社 | Overload/open-phase tripping device for circuit breaker |
| CN101162660A (en) * | 2006-10-09 | 2008-04-16 | 阿雷瓦T&D股份公司 | Activation by contacts of an interrupter tube with double movement by an insulating tube |
| CN201364864Y (en) * | 2008-12-16 | 2009-12-16 | Abb股份有限公司 | Multi-phase electrical switch device with circuit breaking slide valve |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102008062527B4 (en) | 2022-08-11 |
| DE102008062527A1 (en) | 2010-06-17 |
| FR2939957A1 (en) | 2010-06-18 |
| ITMI20092086A1 (en) | 2010-06-17 |
| CN201364864Y (en) | 2009-12-16 |
| IT1396625B1 (en) | 2012-12-14 |
| CN101763989A (en) | 2010-06-30 |
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