CN101256918A - Fault/differential current protection switch assembly equipment composed of circuit protection switch and same - Google Patents
Fault/differential current protection switch assembly equipment composed of circuit protection switch and same Download PDFInfo
- Publication number
- CN101256918A CN101256918A CNA2008100063698A CN200810006369A CN101256918A CN 101256918 A CN101256918 A CN 101256918A CN A2008100063698 A CNA2008100063698 A CN A2008100063698A CN 200810006369 A CN200810006369 A CN 200810006369A CN 101256918 A CN101256918 A CN 101256918A
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- CN
- China
- Prior art keywords
- protection switch
- current protection
- main body
- bar main
- reference test
- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 claims abstract description 105
- 238000005452 bending Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
- H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
-
- 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
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
-
- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
With fault current circuit breakers or differential current circuit breakers, a test key is used in the prior art to close a test current circuit so that a test current, which simulates a fault current, flows and a check as carried out to determine whether the circuit breaker functions in a proper manner. In accordance with the invention, a test lever element (16) is used instead of a test key. This can preferably be pivoted about the same axis of rotation as the conventionally provided opening/closing control lever (12) of the circuit breaker, and the movement of the test lever element (16) can be partially coupled to this control lever (12). In a predetermined position of the test lever element (16), the test current circuit is closed. This predetermined position is preferably an intermediate position of the test lever element between two end positions, so that the test current only flows briefly.
Description
Technical field
The present invention relates to a kind of failure current protection switch or differential current protection switch and relate to a kind of unit equipment that constitutes by line protection switch and failure current protection switch or differential current protection switch.
Background technology
Failure current protection switch has the task as differential current protection switch, i.e. the detection failure electric current.The present invention especially tells about a kind of test function: especially produce measuring current by closed test circuit and detect in the framework of test function, whether protection switch is made as the identical correct reaction of the reflection that fault current is made measuring current.
Usually, connect test circuit by pushing testing button.Such testing button is for example described in DE 102 20 622 A1 and EP 1 492 140 A1.With open among JP 2932242 B2, testing button is directly adjacent to the setting of on-off operation bar.Protection switch has such action bars usually.Because action bars requires a lot of spaces, the installing space that is used for testing button so just is restricted, so the setting of testing button is problematic.The user not only must touch action bars but also will touch testing button.For this reason, the space must be used for explanatory note, and this literal explanation must be able to be operated personnel and read.
Summary of the invention
Be the unit equipment that a kind of failure current protection switch, differential current protection switch is provided or constitutes by such protection switch with line protection switch order of the present invention; this protection switch or unit equipment have test function; wherein, occupied space is utilized as far as possible well.
Order of the present invention ground is realized by failure current protection switch according to claim 1 or differential current protection switch or by unit equipment according to claim 9.
According to the present invention; protection switch has can be by the reference test bar main body of operating personnel's deflection between first final position and second final position; wherein, the measuring current of (especially by connecting contact) connection test circuit and flow simulating fault current in the predetermined position of reference test bar main body.
Therefore, the present invention abandons the use test button.Thus, an on-off operation bar to be set after all promptly, be suitable for this action bars and can be by operating personnel contact and the reference test bar main body of handling thereby can be provided with.The problem of Chu Xianing in the time of promptly near testing button is in action bars, may be pushed testing button mistakenly when the manipulation operations bar in the prior art, be can not produce similar problem on the reference test bar main body, and protection switch can be constructed compactly.
In a preferred embodiment, the predetermined position of the reference test bar main body of connection test circuit is the centre position of the reference test bar main body between two final positions.Cautiously consider in this embodiment, promptly when bringing the reference test bar main body into its another final position from its final position, only occupy the predetermined position of test lever body in short time.Certainly, when measuring current only flowed in short time, this was fully enough for test function.
In a preferred embodiment, metal bending thing is engaged on the reference test bar main body, and is engaged to the position that keeps certain distance with the rotation of reference test bar main body.The bending thing with predetermined position in two contacts of bridge joint or in predetermined position, affact on the pressure switch alternatively.
The bending thing can fully bear gravity, thereby freely hangs bending thing end from above.If the reference test bar main body is rotated, the default optimum seeking site of reference test bar main body is so so, and promptly metal bending thing position engaged reaches its minimum point when this position.Then, bending thing end reaches its minimum point and two contacts of bridge joint or masterpiece used on the pressure switch in short time too.Then, when further rotating the reference test bar main body, bending thing end is removed from contact or pressure switch again.
As already described, can realize testing the favourable setting of lever body, this is arranged under the situation of Test Switchboard and is not presented.As the on-off operation bar of fault current protection switch or differential current protection switch, the reference test bar main body can be preferably around its rotation rotation and by this particularly preferably is set directly at action bars.According to protection switch of the present invention the time, this preferred embodiment allows special compact structure.
Propose among the present invention, the operation of reference test bar main body and the operation of action bars can be coupled by any way.
Propose as a kind of measure, as the open position of action bars, first final position of reference test bar main body has the identical position, angle with respect to rotation, and as the on-position of action bars, second final position of reference test bar main body has the identical position, angle with respect to rotation.In other words, the range of deflection of reference test bar main body is identical with the range of deflection of action bars, and this has alleviated the coupling of reference test bar main body and action bars.
The coupling of reference test bar main body and action bars also alleviates in one case, and the surface of the reference test bar main body that can be touched by operating personnel has the surperficial identical cross section with the action bars that can be touched by operating personnel.If the reference test bar main body directly is arranged on by the action bars, this means the reference test bar main body and the action bars that form a subcontinuous operating area and can especially easily touch and handle so.
Coupling between reference test bar main body and action bars also can realize by synchronous piece.This synchronous piece for example can constitute in this wise, and promptly only the reference test bar main body must deflect into second final position from its first final position and action bars is automatically moved in its on-position by its open position.Synchronous piece and especially same synchronous piece can produce such effect, promptly with action bars when its on-position deflects into its open position, reference test bar main body together (from its second final position) moves to its first final position.
By a kind of measure in back,, then stoped the deflection of reference test bar main body in case protection switch keeps disconnecting.This is significant fully because when the protection switch that disconnects flowing test electric current not.Or rather, only when action bars was in its on-position, it also was significant allowing measuring current to flow.
Description of drawings
Next, with reference to the accompanying drawings the preferred embodiments of the present invention are described, shown in the figure:
Fig. 1 shows the perspective internal view according to failure current protection switch of the present invention, in the figure, action bars and reference test bar main body jointly in open position,
Fig. 2 shows the failure current protection switch among Fig. 1 in a state, and promptly action bars and reference test bar main body be at on-position,
Fig. 3 shows the cross-sectional view that passes the failure current protection switch among Fig. 1, in the figure, action bars in on-position and the reference test bar main body in such position, promptly connect test circuit,
Fig. 4 shows failure current protection switch among Fig. 1 with the perspective view in the state, promptly action bars in on-position and the reference test bar main body in open position,
Fig. 5 shows the situation that does not have action bars among Fig. 4,
Fig. 6 shows the perspective view of the reference test bar main body of using in the present invention,
Fig. 7 shows the perspective view of the action bars of using in the present invention.
Embodiment
Failure current protection switch with 10 marks has action bars 12 in a conventional manner in the whole text, utilizes this action bars can switch on and off failure current protection switch.Action bars 12 illustrates in Fig. 7 fully.This action bars is by transmitting other parts acting in conjunction of connecting rod 14 and failure current protection switch, and these other parts are not shown in Figure 1, and this is because as broad as long with prior art with regard to the mode of operation of action bars 12.
It is other that reference test bar main body 16 is set directly at action bars 12.Reference test bar main body 16 can be around same rotation rotation as action bars 12.This reference test bar main body is shown in Figure 6 fully.Action bars 12 has the operating surface 18 that can be touched by operating personnel.Reference test bar main body 16 has same operating surface 20, and this operating surface has and operating surface 18 identical cross-sectional profiles.Operating surface 20 directly is connected on the operating surface 18 and prolongs this operating surface on the direction of the rotation that is parallel to action bars 12 and reference test bar main body 16.Therefore, action bars 12 and reference test bar main body 16 can common each other especially well deflections.This common deflection (perhaps being called synchronous rotation) should be especially shown in Figure 1 action bars 12 open position and take place between the on-position of action bars 12 shown in figure 2.Move in order to alleviate coupling, action bars 12 comprises jut shown in Figure 7 24 on the matrix 22 of annular, also this jut is called bolt.The limb 26 that is formed on the reference test bar main body 16 is more longer and narrower than the matrix 22 of the annular of action bars 12, and this can realize that jut 24 is engaged under the limb 26.Yet, the limb 28 that is connected to the reference test bar main body 16 on the limb 26 design broad, for example width is identical with the matrix 22 of the annular of action bars 12.Sync edge 30 is provided thus.If reference test bar main body 16 is deflected, sync edge 30 just affacts on the jut 24 so, thereby forces action bars 12 and the common deflection of reference test bar main body.Therefore, according to the situation of Fig. 1 to according to the situation transition of Fig. 2 the time, operating personnel only need to handle reference test bar main body 16 basically, action bars 12 rotates jointly.
In contrast, if action bars 12 automatically jumps back to the open position from on-position when fault current, so with regard to that aspect of action bars, this joystick is driving reference test bar main body 16 with this side in the opposite direction.Therefore, this is very significant, because when failure current protection switch 10 disconnected, reference test bar main body 16 should be returned its original position.
In principle, also can be in the open position of reference test bar main body 16 bridge joint contact 36 and 36 ', measuring current flows constantly then.Advantageously, this of measuring current continues to flow through structural measure to be stoped, promptly contact 36 and 36 ' only in the centre position that does not occupy by reference test bar main body 16 constantly by bending thing 32 bridge joints.
The use test button in order to connect test circuit in the prior art, and application testing bar main body 16 has advantage, promptly the space that only provides for action bars in other cases is used for two parts ideally.Problem when arranging testing button is eliminated therefrom, and failure current protection switch can be constructed especially compactly.For explanatory note provides enough positions, this literal explanation can be seen by operating personnel.
Reference number
10 failure current protection switch
12 action bars
14 transmit connecting rod
16 reference test bar main bodys
The operating surface of 18 action bars 12
The operating surface of 20 reference test bar main bodys 16
22 matrixes
24 juts
26 limbs
28 limbs
30 sync edges
32 bending things
34 spaces
36,36 ' contact
Claims (9)
1. a failure current protection switch (10) or differential current protection switch; it is characterized in that; one can be by the reference test bar main body (16) of operating personnel's deflection between first final position and second final position; wherein, the measuring current of connection test circuit and simulated failure electric current flows in the predeterminated position of described reference test bar main body.
2. failure current protection switch according to claim 1 or differential current protection switch is characterized in that, the described predeterminated position of described reference test bar main body (16) is the centre position of the described reference test bar main body (16) between two final positions.
3. failure current protection switch according to claim 1 and 2 or differential current protection switch; it is characterized in that; metal bending thing (32) is engaged on the position (34) that rotation on the described reference test bar main body and described reference test bar main body keeps certain distance, described metal bending thing two contacts of bridge joint (36,36 ') or affact on the pressure switch at described predeterminated position in described predeterminated position.
4. according to each described failure current protection switch or differential current protection switch in the aforementioned claim; it is characterized in that described reference test bar main body (16) can be around the axis rotation identical with the on-off operation bar (12) of described failure current protection switch or differential current protection switch.
5. failure current protection switch according to claim 4 or differential current protection switch; it is characterized in that; first final position of described reference test bar main body (16) has the angle position with respect to described rotation identical with the open position of described action bars (12), and second final position of described reference test bar main body (16) has the angle position with respect to described rotation identical with the on-position of described action bars (12).
6. according to claim 4 or 5 described failure current protection switch or differential current protection switch; it is characterized in that the surface (20) of the described reference test bar main body (16) that can be touched by operating personnel has the identical cross-sectional profiles in surface (18) with the described action bars (12) that can be touched by operating personnel.
7. according to each described failure current protection switch or differential current protection switch in the claim 4 to 6; it is characterized in that; when deflecting into described second final position from described first final position described reference test bar main body (16), synchronous piece (24) produces and to make described action bars (12) move to effect the on-position jointly from its open position.
8. according to each described failure current protection switch or differential current protection switch in the claim 4 to 7; it is characterized in that; the effect of described synchronous piece (24) is; with described action bars (12) when its on-position moves to the open position jointly, described reference test bar main body (16) moves in its first final position jointly.
9. one kind by line protection switch and the unit equipment that constitutes according to each described failure current protection switch or differential current protection switch in the aforementioned claim.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007010015A DE102007010015A1 (en) | 2007-03-01 | 2007-03-01 | Residual current circuit breaker, differential circuit breaker and combination device of circuit breaker and residual current circuit breaker or residual current device |
| DE10200701015.0 | 2007-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101256918A true CN101256918A (en) | 2008-09-03 |
Family
ID=39315887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100063698A Pending CN101256918A (en) | 2007-03-01 | 2008-02-29 | Fault/differential current protection switch assembly equipment composed of circuit protection switch and same |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101256918A (en) |
| DE (2) | DE102007010015A1 (en) |
| GB (2) | GB2453861B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065899B (en) * | 2011-10-21 | 2015-12-30 | 施耐德电器工业公司 | Earth leakage protective device and circuit breaker |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1006495B (en) * | 1955-03-12 | 1957-04-18 | Berker Geb | Test device for circuit breaker |
| DE1178932B (en) * | 1962-02-06 | 1964-10-01 | Schutzapp Ges Paris U Co M B H | Residual current circuit breaker with a summation current transformer and a test device for the switch function |
| DE2115034B2 (en) * | 1971-03-29 | 1977-07-21 | Brown, Boveri & Cie Ag, 6800 Mannheim | CIRCUIT BREAKER WITH OVERCURRENT, SHORT CIRCUIT AND FAULT CURRENT PROTECTION |
| DE3032826C2 (en) * | 1980-08-30 | 1985-11-07 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Residual current circuit breaker with a test button for switching on a resistor in a test circuit |
| DE3920822C2 (en) * | 1989-06-24 | 1994-09-01 | Licentia Gmbh | Additional switch for mounting on a circuit breaker |
| JP2979794B2 (en) * | 1991-11-29 | 1999-11-15 | 松下電器産業株式会社 | Leakage breaker operating device of water heater |
| US5319168A (en) * | 1993-01-04 | 1994-06-07 | Westinghouse Electric Corp. | Circuit breaker retractable handle mechanism |
| EP0630035B1 (en) * | 1993-06-15 | 1997-05-21 | Heinrich Kopp Ag | Auxiliary and signal switch for protective switching devices |
| JP2932242B2 (en) | 1994-12-09 | 1999-08-09 | 春日電機株式会社 | Earth leakage breaker trip device |
| JP2000003661A (en) * | 1998-06-15 | 2000-01-07 | Fuji Electric Co Ltd | Earth leakage breaker |
| DE10220622B4 (en) | 2002-05-08 | 2004-09-09 | Siemens Ag | Residual-current device |
| DE10329115B4 (en) | 2003-06-27 | 2005-09-29 | Siemens Ag | Protection switching device with test button |
| DE102004055564B4 (en) * | 2004-11-18 | 2022-05-05 | Abb Ag | Electrical installation switching device |
| DE102005041232B4 (en) * | 2005-08-31 | 2009-11-26 | Abb Ag | Electrical switching device |
| DE102005041231B4 (en) * | 2005-08-31 | 2009-11-26 | Abb Ag | Electrical switching device |
-
2007
- 2007-03-01 DE DE102007010015A patent/DE102007010015A1/en not_active Withdrawn
- 2007-03-01 DE DE102007063636A patent/DE102007063636A1/en not_active Withdrawn
-
2008
- 2008-02-29 CN CNA2008100063698A patent/CN101256918A/en active Pending
- 2008-03-03 GB GB0819013A patent/GB2453861B/en not_active Expired - Fee Related
- 2008-03-03 GB GB0803962A patent/GB2447147B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB2447147A (en) | 2008-09-03 |
| GB0803962D0 (en) | 2008-04-09 |
| GB2447147B (en) | 2011-09-07 |
| DE102007010015A1 (en) | 2008-09-11 |
| GB2453861A (en) | 2009-04-22 |
| GB0819013D0 (en) | 2008-11-26 |
| DE102007063636A1 (en) | 2009-07-30 |
| GB2453861B (en) | 2009-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080903 |