CN103247458B - Drive device for an electrical switchgear, electrical switchgear and system comprising at least two electrical switchgear - Google Patents
Drive device for an electrical switchgear, electrical switchgear and system comprising at least two electrical switchgear Download PDFInfo
- Publication number
- CN103247458B CN103247458B CN201310050190.3A CN201310050190A CN103247458B CN 103247458 B CN103247458 B CN 103247458B CN 201310050190 A CN201310050190 A CN 201310050190A CN 103247458 B CN103247458 B CN 103247458B
- Authority
- CN
- China
- Prior art keywords
- drive
- bowden cable
- electrical switching
- switching device
- cable locking
- 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
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Classifications
-
- 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
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
- H01H9/262—Interlocking, locking, or latching mechanisms for interlocking two or more switches using flexible transmission elements, e.g. Bowden cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
- H01H33/52—Interlocking mechanisms for interlocking two or more switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lock And Its Accessories (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to an actuating device (4, 14, 24) for an electrical switching device, in particular a circuit breaker, which is at least designed to switch the electrical switching device on or off, wherein the actuating device (4, 14, 24) has at least one Bowden cable locking module (1, 11, 21) which is operatively connected to the actuating device (4, 14, 24) and is designed to lock the electrical switching device and at least one second electrical switching device to one another. The invention further relates to an electrical switchgear having such a drive device (4, 14, 24) and to a system of at least two electrical switchgear having such a drive device (4, 14, 24).
Description
Technical Field
The invention relates to a drive device for an electrical switching device, in particular a circuit breaker, which drive device is at least designed for switching the electrical switching device on or off. The invention also relates to an electrical switchgear having a drive device and to a system of at least two electrical switchgear having a drive device.
Background
The task of electrical switching devices, such as circuit breakers, is to decouple a plurality of loads from the supply network when a specific fault occurs. A typical fault is the occurrence of a short-circuit current, and the circuit breaker is designed in a conventional manner for moving the switching element and thus breaking the connection between the load and the grid in the event of such a short-circuit current.
The invention relates to an electrical switching device, in particular a circuit breaker in the low voltage range. The "low voltage" is typically a voltage of up to about 1000 volts. In the case of a corresponding design of the disconnection point, such a switching device can also be designed for switching voltages of more than 1000 volts, for example up to 6.3 kV. In particular, such electrical switching devices, such as low-voltage switching devices, are designed to interrupt the current path in the event of an overcurrent, in the event of a fault current and/or in the event of a short circuit. It can be designed unipolar or multipolar, in particular tripolar.
For electrical switching devices, in particular circuit breakers, such as compact circuit breakers, locking is required for certain applications as an accessory. This locking is either a front or a rear locking. It is known to arrange locking modules as external units on electrical switchgear. The mutual locking can be achieved, for example, by means of a connecting rod or bowden cable. In this known interlocking electrical switching device, it is disadvantageous that additional installation space must be provided for the locking module. The locking module arranged in this way may also be susceptible to damage or contamination, so that a permanent function of the locking module cannot be ensured.
Disclosure of Invention
The object of the invention is therefore: the aforementioned disadvantages of known interlocking in electrical switching devices, such as circuit breakers, are at least partially eliminated. In particular, a simple, cost-effective and space-saving interlocking of electrical switching devices, such as circuit breakers, should be achieved.
The above object is achieved by: an actuating device for an electrical switching device having the features of claim 1; an electrical switching device having the features of claim 7; and a system of at least two electric switching devices having the features of claim 9. Further features and details of the invention emerge from the dependent claims, the description and the drawings. The features and details described in connection with the drive device according to the invention for an electrical switchgear are of course also connected with the electrical switchgear according to the invention and with a system consisting of at least two electrical switchgear and vice versa, respectively, so that the disclosure with respect to the individual inventive aspects is always or can be mutually referenced.
According to a first aspect of the invention, the object is achieved by a drive device for an electrical switching apparatus, in particular a circuit breaker, such as a compact circuit breaker, which drive device is at least designed for switching the electrical switching apparatus on and off. The drive device is characterized in that the drive device has at least one Bowden cable locking module which is operatively connected to the drive device and is designed to lock the electrical switching device and the at least one second electrical switching device to one another. In other words, at least one bowden cable locking module is part of the drive of the electrical switching device, in particular integrated into the drive of the electrical switching device. In this case, the at least one bowden cable locking module is operatively connected to the drive device in such a way that the at least one bowden cable locking module can lock or release the electrical switching device. Since the drive device has at least one bowden cable locking module, switching devices, such as circuit breakers, can be locked to one another in a simple, cost-effective and space-saving manner. In particular, the at least one bowden cable locking module is integrated in the drive for the electrical switching device, so that no additional installation space has to be provided for the at least one bowden cable locking module on the electrical switching device, such as a circuit breaker. Furthermore, since the drive device has at least one bowden cable locking module, a simple functional connection of the bowden cable locking module to the drive device can be established in order to lock or release the electrical switching device, on which the drive device is arranged. The drive device can be operated via a bowden cable.
In accordance with a preferred further development of the invention, in the case of an actuating device for an electrical switching device, it can be provided that each bowden cable locking module is detachably fastened in one or in each case one receiving groove of the housing of the actuating device. In the simplest case, the drive for the electrical switching device therefore has a receiving groove for receiving the bowden cable locking module. The receiving groove is preferably formed by the housing of the drive device. The bowden cable locking module is preferably arranged in a form-fitting manner in a receiving groove of the housing of the drive device. Particularly preferably, the housing of the drive device can have a cover portion located above the receiving groove. The cover may be removed for receiving the bowden cable locking module. Alternatively, it is possible in an actuating device for an electrical switching device for two or more bowden cable locking modules to be releasably fastened in a receiving groove of a housing of the actuating device. This can be achieved, for example, by accommodating two bowden cable locking modules, which are designed to mutually lock two other electrical switching devices.
According to a further preferred refinement, in the case of an actuating device for an electrical switching device, it can be provided that two or more bowden cable locking modules are releasably fastened in a respective receiving groove in the housing of the actuating device. This also enables interlocking of the electrical switching device with two or more other electrical switching devices.
Preferably, the corresponding receiving groove is designed such that the one or more bowden cable locking modules are arranged in a form-fitting manner in at least one receiving groove. In other words, the receiving groove is preferably designed such that it corresponds to the dimensions of the bowden cable locking module, so that only the maximum necessary installation space in the housing of the drive device is required for receiving the one or more bowden cable locking modules.
In addition, provision can advantageously be made in a drive device for an electrical switchgear that the drive device has a steering drive (umlenkantriib) and at least one bowden cable locking module is operatively connected to the steering drive. Since the at least one bowden cable locking module is operatively connected to the steering drive of the drive, a direct locking or unlocking of the electrical switching device can be achieved by means of the at least one bowden cable locking module. In this case, at least one bowden cable locking module can be directly engaged into the steering drive in order to carry out the locking thereof. For example, at least one bowden cable locking module can have a latch which can be actuated by the bowden cable of the bowden cable locking module and can be operatively connected to a steering drive for actuating the steering drive of the drive, in particular for locking or releasing an electrical switching device.
Preference is furthermore given to a drive device having a handle. The actuating device can be actuated by means of a handle, i.e. the electrical switching device can be switched on and off by actuating the handle of the actuating device when at least one bowden cable locking module of the actuating device does not lock the actuating device.
According to a further preferred development of the invention, provision can be made in an actuating device for an electrical switching device for at least one bowden cable locking module to be fixed in the actuating device or in at least one receiving groove of a housing of the actuating device. This ensures that the at least one bowden cable locking module is fixed to the drive device, in particular in at least one receiving groove in the housing of the drive device. The locking element is designed such that it can release the at least one bowden cable locking module, for example by removing the locking element, so that the locking element can be removed from the drive.
The drive device for an electrical switching device, in particular for a circuit breaker, such as a compact circuit breaker, can be of different types. Particularly preferably, the drive is a direct drive (Direktantrieb), a gate coupled rotary drive (T ü rkupplungsrehantrieb), a side wall rotary drive (Seitenwanddrehantrieb) or a motor drive. Such drive devices are commonly used in electrical switchgear, in particular in circuit breakers. The direct drive is characterized in that it is arranged directly on the electrical switchgear. The direct drive is preferably designed as a rotary drive. In other words, the direct drive has a handle with a steering drive, which is arranged directly on the electrical switching device in order to switch it at least on or off. An electrical switching device with a direct drive can only be actuated if it is directly accessible. That is to say, such an electrical switching device is arranged in a switchgear cabinet, which can be operated by direct drive means only when the switchgear cabinet door is open. The rotary drive coupled by the door makes it possible to operate electrical switching devices, such as circuit breakers, from the outside even when the switchgear door is closed. Such door coupling rotary drive devices are used in the following places: in this case, the electrical switching device is installed in the electrical control device, the voltage divider and the switching device behind the cover, lid or door to be opened and is actuated manually from the outside. The same applies to the side wall rotary drive. As in the case of the door with a rotary drive, the handle is located in the side wall rotary drive on the side of the door, of the cover or of the lid facing away from the electrical switching device. For actuating the electrical switching device, a steering drive is provided, which has in particular an extension shaft. The steering drive or the extension shaft is guided from the handle through the door, cover or lid to the electrical switching device in order to switch it on or off. In this way, it is easily ensured that the electrical switching device can be switched on and off by actuating the handle when the electrical switching device is arranged in a closed space, in particular in a switchgear cabinet. Furthermore, it is conceivable for the drive to be designed as a motor drive. Particularly preferably, the drive device can be designed as a remote-controlled drive device, so that the drive device can be operated without the operator having to manually operate a handle of the drive device. Such a drive device with an integrated bowden cable locking module can be used in a particularly simple and space-saving manner for locking at least two electrical switching devices to one another.
According to a second aspect of the invention, the object is achieved by an electrical switching device having at least one drive device for switching the electrical switching device on and off, wherein the drive device is designed according to the first aspect of the invention, that is to say according to claims 1 to 7. An electrical switching device, in particular a low-voltage switching device, which is designed in this way, can be used to lock such electrical switching devices, such as circuit breakers, to one another in a simple, cost-effective and space-saving manner, the switching device preferably being designed as a circuit breaker, in particular as a compact circuit breaker. Since the at least one bowden cable locking module is arranged in the drive of the electrical switching device, the electrical switching device can be designed in a simple and space-saving manner. The advantages of the drive device designed for the first aspect of the invention are also applicable here to the electrical switching device according to the second aspect of the invention.
According to a third aspect of the invention, the object is achieved by a system consisting of at least two electrical switching devices, in particular at least two circuit breakers, according to the second aspect of the invention, wherein the bowden cable locking modules of the electrical switching devices are connected by a bowden cable for locking the respective two electrical switching devices to each other. In other words, each of the at least two electrical switching devices preferably has at least one bowden cable locking module, which is part of the respective drive of the electrical switching device. Preferably, a system has two electrical switching devices, such as two circuit breakers. Each of the electrical switching devices advantageously has an actuating device with a bowden cable locking module. The respective bowden cable locking module is advantageously arranged in the housing of the respective drive device. The two bowden cable locking modules of the respective electrical switching device can be connected to one another by means of the bowden cable in such a way that the two electrical switching devices can be locked to one another simply by means of the bowden cable and the two bowden cable locking modules. Thus, for example, one of the electrical switching devices may not be switched on: the other electrical switching device is switched on. The two electrical switching devices are operatively connected by means of a bowden cable and a bowden cable locking module arranged in the drive device in the following manner: the actuation of the drive of one electrical switching device directly causes the opposite actuation of the drive of the other electrical switching device. The bowden cable locking modules are advantageously each arranged in a receiving groove of a corresponding drive of the electrical switching device. The bowden cables connecting the bowden cable locking modules are guided through openings in the housing or the receiving channel to the respective bowden cable locking module.
Of course all the advantages already described in relation to the drive device according to the first aspect of the invention and the electrical switchgear according to the second aspect of the invention also result in a system according to the invention for at least two electrical switchgear, in particular at least two circuit breakers.
Drawings
The drive device for an electrical switching device according to the invention and its advantages are explained in detail below with reference to the drawings. Schematically showing:
fig. 1 shows a drive device for an electrical switching device in a sectional view, which is designed according to the structural principle according to the invention,
fig. 2 shows two drives according to the invention, each for an electrical switchgear, which are designed for mutual locking by their bowden cable locking modules,
figure 3 shows two actuating devices for two electrical switching devices which are connected to one another by means of bowden cables for interlocking, and
fig. 4 shows three drive devices which are connected to one another by means of bowden cables for interlocking.
List of reference numerals
1 Bowden cable locking module
2 locking element
3 Bowden cable
4 driving device
5-steering drive device
11 bowden cable locking module
12 locking element
13 Bowden cable
14 drive device
15 steering driving device
21 Bowden cable locking module
24 driving device
Elements having the same function and mode of action are denoted by the same reference numerals in fig. 1 to 4, respectively.
Detailed Description
Fig. 1 shows a schematic sectional view of a drive device 4 for an electrical switchgear, such as a circuit breaker, in particular a compact circuit breaker, which is designed according to the inventive concept. The drive 4 has a bowden cable locking module or a pull cable locking module or a bowden cable (bowden cable) 1. The bowden cable locking module 1 is integrated in the drive 4. In particular, the bowden cable locking module 1 is detachably fixed in a receiving groove of the housing of the drive device 4. The bowden cable locking module 1 has a locking element 2, which can be operatively connected to a steering drive 5 of a drive 4. The locking element 2 of the bowden cable locking module 1 is designed such that it is locked in one position of the electrical switchgear in operative connection with the steering drive 5 of the drive 1 and can be released in another position of the electrical switchgear. The bowden cable lock module 1 can be connected to a bowden cable lock module 11 of another electrical switching device via a bowden cable or pull cable (Bowdenzug) 3 in order to lock the electrical switching devices to one another. This is shown in fig. 2. The two illustrated drives 4, 14 each have a bowden cable locking module 1, 11. The bowden cable locking modules 1, 11 are interconnected by the bowden cable 3 in such a way that the bowden cable locking module 1 of the first drive 4 releases the movement of the steering drive 5 of the drive 4, while the bowden cable locking module 11 of the second drive 14 locks the movement of the steering drive 15. The steering drive 5, 15 is released or locked by the locking elements 2, 12 of the respective bowden cable locking module 1, 11.
In particular, the bowden cable locking modules 1, 11 or the locking elements 2, 12 of the bowden cable locking modules 1, 11 are designed such that they prevent actuation of the respective other drive 4, 14 when one of the drives 4, 14 is actuated.
Fig. 3 shows two drives 4, 14, each having a bowden cable locking module 1, 11. The bowden cable locking modules 1, 11 are interactively connected by means of a bowden cable 3. Fig. 4 shows three drives 4, 14, 24, each having a bowden cable locking module 1, 11, 21. The bowden cable lock module 1 shown on the left in fig. 4 is connected via a first bowden cable 3 to a second bowden cable lock module 11 shown in the middle. The middle bowden cable locking module 11 is operatively connected via a further bowden cable 13 to a third bowden cable locking module 21 of a drive 24 shown on the right in fig. 4. By means of this embodiment of the drive 4, 14, 24, the three electrical switching devices can be locked to one another. Additionally, bowden cables (not shown) can be led from the drive means 4 to the drive means 24 in order to lock these drive means to each other.
Claims (9)
1. An actuating device (4, 14, 24) for an electrical switching device, which actuating device is at least designed to switch the electrical switching device on and off, characterized in that the actuating device (4, 14, 24) has at least one bowden cable locking module (1, 11, 21), which is operatively connected to the actuating device (4, 14, 24) and is designed to lock the electrical switching device and at least one second electrical switching device to one another, wherein each bowden cable locking module (1, 11, 21) is detachably fastened in one or in each case one receiving groove of a housing of the actuating device (4, 14, 24), wherein the bowden cable locking modules (1, 11) are mutually connected by means of bowden cables (3) in such a way that the bowden cable locking module (1) of the first actuating device (4) releases a movement of a steering actuating device (5) of the actuating device (4), the Bowden cable locking module (11) of the second drive (14) locks the movement of the steering drive (15), wherein the steering drive has an extension shaft which is guided from the handle through the door or the cover as far as an electrical switching device for switching it on or off, wherein the electrical switching device is arranged in a closed space, wherein the corresponding receiving groove is designed in such a way that: such that the one or more bowden cable locking modules are arranged in a form-fitting manner in the at least one receiving groove.
2. Drive arrangement (4, 14, 24) according to claim 1, characterized in that the drive arrangement (4, 14, 24) has a steering drive arrangement and the at least one bowden cable locking module (1, 11, 21) is operatively connected with the steering drive arrangement (5, 15).
3. Drive arrangement (4, 14, 24) according to claim 1 or 2, characterized in that the drive arrangement (4, 14, 24) has a handle.
4. Drive arrangement (4, 14, 24) according to claim 1 or 2, characterized in that a locking element is provided for fixing the at least one bowden cable locking module (1, 11, 21) in the drive arrangement (4, 14, 24).
5. Drive arrangement (4, 14, 24) according to claim 1 or 2, characterized in that the drive arrangement (4, 14, 24) is a direct drive, a door coupling rotary drive, a side wall rotary drive or a motor drive.
6. Drive arrangement (4, 14, 24) according to claim 1 or 2, characterized in that the electrical switching device is a circuit breaker.
7. An electric switching device having at least drive means (4, 14, 24) for switching the electric switching device on and off, characterized in that the drive means (4, 14, 24) are designed according to any one of the preceding claims.
8. An electrical switching apparatus according to claim 7, characterized in that the electrical switching apparatus is a compact circuit breaker.
9. A system consisting of at least two electric switching devices according to claim 7 or 8, characterized in that the Bowden wire locking modules (1, 11, 21) of the drive means (4, 14, 24) of the electric switching devices are connected by means of Bowden wires (3, 13) for mutually locking the two electric switching devices.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012201853.0 | 2012-02-08 | ||
| DE201210201853 DE102012201853A1 (en) | 2012-02-08 | 2012-02-08 | Drive structure e.g. motor drive for turning ON/OFF e.g. compact circuit breaker, has Bowden cable locking module that is located in active connection with drive structure, and provided for mutually locking electrical switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103247458A CN103247458A (en) | 2013-08-14 |
| CN103247458B true CN103247458B (en) | 2020-11-10 |
Family
ID=48794687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310050190.3A Expired - Fee Related CN103247458B (en) | 2012-02-08 | 2013-02-08 | Drive device for an electrical switchgear, electrical switchgear and system comprising at least two electrical switchgear |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103247458B (en) |
| DE (1) | DE102012201853A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015217403A1 (en) | 2015-09-11 | 2017-03-16 | Siemens Aktiengesellschaft | Switchgear with a vacuum tube |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213732A2 (en) * | 2000-11-24 | 2002-06-12 | Moeller GmbH | Interlocking device for electrical switchgear |
| CN101882518A (en) * | 2009-05-04 | 2010-11-10 | 西门子公司 | The device that is used for mutual locking of two switches, especially circuit breaker |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4626638A (en) * | 1984-12-06 | 1986-12-02 | Siemens Energy & Automation, Inc. | Operating system for remote electrical equipment |
| DE4002936A1 (en) * | 1990-02-01 | 1991-08-22 | Kloeckner Moeller Gmbh | Simultaneous switch operation blocking device - uses tension element between identical locking devices for respective switches |
| DE9203532U1 (en) * | 1992-03-17 | 1993-07-15 | Moeller GmbH, 53115 Bonn | Mechanical changeover, parallel or remote drive for electrical switching devices with rotary or toggle lever drive, in particular for circuit breakers, motor protection switches and the like |
| DE19757178C1 (en) * | 1997-12-22 | 1999-06-10 | Kloeckner Moeller Gmbh | Locking arrangement for two low voltage switching devices connected via a flexible element, esp. a Bowden cable and to be locked to prevent simultaneous switching |
-
2012
- 2012-02-08 DE DE201210201853 patent/DE102012201853A1/en not_active Withdrawn
-
2013
- 2013-02-08 CN CN201310050190.3A patent/CN103247458B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1213732A2 (en) * | 2000-11-24 | 2002-06-12 | Moeller GmbH | Interlocking device for electrical switchgear |
| CN101882518A (en) * | 2009-05-04 | 2010-11-10 | 西门子公司 | The device that is used for mutual locking of two switches, especially circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012201853A1 (en) | 2013-08-08 |
| CN103247458A (en) | 2013-08-14 |
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