EP0789925A1 - Power switch mutually locking arrangement - Google Patents
Power switch mutually locking arrangementInfo
- Publication number
- EP0789925A1 EP0789925A1 EP95935837A EP95935837A EP0789925A1 EP 0789925 A1 EP0789925 A1 EP 0789925A1 EP 95935837 A EP95935837 A EP 95935837A EP 95935837 A EP95935837 A EP 95935837A EP 0789925 A1 EP0789925 A1 EP 0789925A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit breaker
- shaft
- evaluation device
- side wall
- support plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- 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
- H01H2009/267—Interlocking, locking, or latching mechanisms for interlocking two or more switches with interlocking of two out of three switches, e.g. two switches each connecting a power supply to a busbar and a bus coupling switch interlocked in such a way that the power supplies are never connected in parallel
Definitions
- the invention relates to an arrangement for mutually locking the actuation of at least two circuit breakers, each circuit breaker having a side wall and a switching shaft accessible on the side wall and a control shaft likewise accessible on the side wall of a device which enables or disables the operation of the circuit breaker, with one Position indicator for emitting a mechanical signal corresponding to the switching position by means of a transmission element (cable pull) and with an evaluation device controllable by the mechanical signals for actuating at least the control shaft of one of the circuit breakers.
- an adapter block of a circuit breaker forms a position indicator and a device for supplying a blocking signal for actuating the control shaft of the same circuit breaker.
- the evaluation device is used to to effect only certain combinations of switching states in a system of three circuit breakers.
- the evaluation device t is always acted upon by a mechanical signal from the position indicator, both of the circuit breaker to which the evaluation device is attached, and by another signal that is provided by the position indicator of one of the other circuit breakers.
- the output signal of the evaluation device is fed to the remaining circuit breaker as a blocking signal.
- the object of the invention is to make the safety device usable independently of the distance between the switching shaft and the control shaft and to enable the user to implement any permissible combinations of switching states of the circuit breakers using basically the same equipment.
- each circuit breaker is assigned an evaluation device and the evaluation device is arranged together with the position indicator of the circuit breaker in question on a common support plate arranged parallel to the side wall, and in that each evaluation device has at least one input slide and one with the Control shaft of the associated circuit breaker detachable output slide.
- each circuit breaker is equipped with a position indicator and an evaluation device ensures that the circuit breaker is standardized and, in principle, independent device equipment.
- this equipment can also be used regardless of the type of circuit breaker mounting, since the support plate allows a functional connection with circuit breakers to be established both in the case of fixed or movable installation (plug-in switch).
- What is essential for the new arrangement is the design of the position indicator as a pure position indicator, which thus only interacts with the control shaft, not against the control shaft. The distance between the control shaft and the control shaft thus has no influence on the design of the position indicator.
- the evaluation device alone has the task of interacting with the control shaft.
- the arrangement according to the invention differs fundamentally from the aforementioned properties from another known locking device according to DE 31 14 186 C2, which is suitable for switching devices which are at different distances from one another and are of different sizes.
- an interlocking housing can be placed in any position and is to be connected to the switching devices by flexible transmission elements.
- different interlocking housings are used.
- the position indicators are separate modules to be attached to the switchgear.
- the support plate provided for receiving a position indicator and an evaluation device can be permanently connected to the circuit breaker in a circuit breaker provided for fixed installation and a connection between the switching shaft of the Circuit breaker and an actuating shaft of the position indicator and a driver coupling to establish a connection between the evaluation device and the control shaft.
- the shaft coupling and the driver coupling make it easier for the user to subsequently equip the circuit breaker with a position indicator and an evaluation device.
- the shaft coupling and the driver coupling can be designed to be detachable in the direction of a movement of the circuit breaker, so that the arrangement can also be used for circuit breakers which are arranged in a slide-in frame in a mobile manner. In this case, the position indicator and the evaluation device can be attached to the slide-in frame.
- a uniform support plate for the various types of installation of a circuit breaker can be made possible in that the side wall of the circuit breaker assigned to the support plate has receiving devices for fastening means for holding an adapter plate, which is designed as a support member for the support plate.
- an adapter plate can also be used if circuit breakers are not mounted on a wall in a switchgear cabinet or a multi-panel switchgear, but by means of suitable mounting angles.
- the support bracket have openings that are aligned with at least some of the receptacles provided for fastening the adapter plate.
- Figure 1 shows a schematic representation of an arrangement for locking three circuit breakers.
- Figures 2, 3 and 4 show different types of mounting a support plate, on each of which a position indicator and an evaluation device are mounted.
- a shaft coupling is shown in longitudinal section in FIG.
- a driver clutch is shown in FIG. 6.
- circuit breakers A, B and C are indicated by dash-dotted lines.
- the circuitry assignment of the circuit breakers A, B and C can be seen from the circuit diagram shown in the upper left part of FIG. 1.
- the circuit breaker A serves as an infeed switch for a transformer and the circuit breaker C as an infeed switch for a generator.
- the circuit breaker B forms a longitudinal coupling of the sections of a busbar to which the circuit breakers A and C are connected.
- the task of the locking arrangement to be described in the following is to prevent the circuit breaker C from being switched on when the circuit breakers A and B are switched on. Conversely, circuit breakers A and B should be blocked when circuit breaker C is switched on.
- Each of the circuit breakers A, B and C has a switch-on button 1 which serves to actuate a switch-on half-shaft 2 by means of an extension 3 attached to it.
- a switch pawl 4 is supported on the switch-on half shaft 2. In a known manner, a rotation of the switch-on shaft 2 in a clockwise direction releases the switch pawl 4 and thus closes the switch contacts of the circuit breaker concerned.
- Each of the circuit breakers A, B and C is assigned a support plate 6, on each of which a position indicator 7 and an evaluation device 10 are located.
- the position indicator 7 has the task of emitting a mechanical signal which is dependent on the switching position of the circuit breaker concerned.
- the position indicator 7 has an actuating shaft 11 which is coupled to a switching shaft of the circuit breaker in a manner to be described.
- On the actuating shaft 11 there is a two-armed lever 12 which is articulated to one or two slidably guided slides 13.
- a spring memory 14 With the interposition of a spring memory 14, when the associated circuit breaker A, B or C is switched on, a cable pull is actuated, which is connected to one of the evaluation devices 10.
- the position indicator 7 for the circuit breaker C has two slides 13 and two
- Each of the evaluation devices 10 has one or two input slides 15, which are held in their rest position by a return spring 16.
- the circuit breakers A and B are assigned evaluation devices each with an input slide, while the circuit breaker C has an evaluation device 10 with two input slides 15. Furthermore, each of the
- coupling members 20 are used or omitted.
- all evaluation devices 10 are equipped with coupling organs 20.
- the locking slide 5 mentioned are connected directly to the output slide 17.
- a total of four cable pulls are provided as flexible transmission elements.
- a cable 21 connects the position indicator 7 of the circuit breaker A to the first input slide 15 of the evaluation device 10 of the circuit breaker C.
- Another cable 22 connects the position indicator 7 of the circuit breaker B to the further input slide 15 of the position indicator 10 of the circuit breaker C.
- the position indicator 7 of the circuit breaker C has two outputs, one of which is connected by a cable 23 to the evaluation device 10 of the circuit breaker A and the other by a cable 24 to the evaluation device 10 of the circuit breaker B.
- FIG. 1 shows the state that the circuit breakers A and B are switched on and the circuit breaker C is blocked against being switched on.
- This state is based on the fact that, as a result of the switch position ON, the circuit breakers A and B are actuated by the associated position indicators 7, the cables 21 and 22 are actuated, and thereby the input slides 15 of the evaluation device 10 of the circuit breaker C with the output slide 17 being carried along are shifted to the right. Therefore, the locking slide 5 is also shifted to the right, as a result of which, in the manner already mentioned, the ON key 1 performs an idle stroke when pressed and the switch-on half shaft 2 is not actuated.
- the support plate 6 is mounted differently depending on the type of installation of a circuit breaker. This is shown schematically in FIGS.
- one of the circuit breakers A, B or C is arranged to be movable in a slide-in frame 26.
- the support plate 6 is attached to the right side wall 27 of the slide frame 26.
- a shaft coupling 30 connects an inner switching shaft of the circuit breaker A, B, or C to the actuating shaft 11 of the position indicator 7.
- a driver coupling 31 connects the output slide 17 of the evaluation device 10 to a device 32, indicated by dash-dotted lines, which functions between the ON button 1 and has the extension 3 engaging locking slide 5 in Figure 1.
- the circuit breaker A, B or C is permanently installed in a switchgear cell of a switchgear by means of a foot bracket 33.
- An adapter plate 34 which is firmly connected to the circuit breaker A, B or C, serves as the support member for the support plate 6.
- the same adapter plate 34 can be used if the circuit breaker A, B or C is attached to a wall 37 by means of two brackets 36. At least one side wall 40 of the support bracket 36 is provided with a contour such that the adapter plate 34 and then the support plate 6 can be mounted without having to remove the circuit breaker A, B or C from the support bracket 36 beforehand. Openings 41 in the side wall 40 allow fixing screws of the adapter plate 34 and the support plate 6 to be handled.
- An example of the design of the shaft coupling 30 is shown in FIG. 5. This shows part of a side wall 42 of a circuit breaker A, B or C to which the adapter plate 34 is fastened.
- a switching shaft 43 of the circuit breaker does not protrude through the side wall 42, but ends inside the housing and is electrically insulated
- the coupling piece 44 which is rotatably mounted in the side wall 42. In this way, the electrical contact protection is maintained despite the external coupling of the actuating shaft 11.
- the coupling piece 44 has a coupling slot 45, into which a correspondingly shaped end piece 46 of the actuating shaft can be inserted. This way, both
- a control shaft 47 which has an actuating arm 50, projects through the partially shown side wall 42 of a circuit breaker. This is offset by an angled portion 51 of a guide slide 52, which can be connected to the output slide 17 of the evaluation device 10 or can be produced in one piece with the latter. Therefore, the driver clutch 31 comes into engagement when mounting the support plate 6 to a circuit breaker.
- the support plate it is essential that the same distance from the side wall of the circuit breaker is achieved in all types of installation of a circuit breaker.
- the distance between the circuit breaker and the side wall of the slide-in frame provided for mounting the support plate can be selected as a reference dimension.
- the adapter plate will therefore designed so that the same position of the support plate results with respect to the side wall of the circuit breaker.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4439751 | 1994-10-31 | ||
DE4439751A DE4439751C2 (en) | 1994-10-31 | 1994-10-31 | Arrangement for interlocking circuit breakers |
PCT/DE1995/001520 WO1996013842A1 (en) | 1994-10-31 | 1995-10-30 | Power switch mutually locking arrangement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0789925A1 true EP0789925A1 (en) | 1997-08-20 |
EP0789925B1 EP0789925B1 (en) | 1998-06-03 |
Family
ID=6532699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95935837A Expired - Lifetime EP0789925B1 (en) | 1994-10-31 | 1995-10-30 | Power switch mutually locking arrangement |
Country Status (5)
Country | Link |
---|---|
US (1) | US5847340A (en) |
EP (1) | EP0789925B1 (en) |
JP (1) | JPH10507866A (en) |
DE (2) | DE4439751C2 (en) |
WO (1) | WO1996013842A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6657524B2 (en) | 2001-09-03 | 2003-12-02 | Siemens Aktiengesellschaft | Circuit breaker with a detachable connection between a switching contact arrangement and a drive apparatus which operates it, as well as a method for removal and installation of the switching contact arrangement |
DE102007037066A1 (en) * | 2007-08-03 | 2009-02-05 | Siemens Ag | Coupling arrangement for transmitting the rotational movement of a switching shaft of an electrical switch to at least one position indicator |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4439751C2 (en) * | 1994-10-31 | 1998-07-09 | Siemens Ag | Arrangement for interlocking circuit breakers |
DE19519999C2 (en) * | 1995-03-10 | 2000-10-05 | Siemens Ag | Arrangement to block or release the operation of a circuit breaker |
DE19734551C2 (en) * | 1997-07-31 | 1999-11-04 | Siemens Ag | Arrangement for providing an auxiliary energy for locking switches |
DE19902728A1 (en) * | 1999-01-19 | 2000-07-20 | Siemens Ag | Switch positions and interlock display arrangement, especially for air-insulated medium-voltage switch-gear and control-gear |
DE102005038629B3 (en) * | 2005-08-10 | 2006-12-21 | Siemens Ag | Locking mechanism for switch e.g. circuit breaker in electrical distribution has force transmission unit swivelable by pivoted and crank levers, which are coupled with drive shaft of commutator and/or with adjacent commutator |
US10098197B2 (en) | 2011-06-03 | 2018-10-09 | Cree, Inc. | Lighting devices with individually compensating multi-color clusters |
US10178723B2 (en) | 2011-06-03 | 2019-01-08 | Cree, Inc. | Systems and methods for controlling solid state lighting devices and lighting apparatus incorporating such systems and/or methods |
US9839083B2 (en) | 2011-06-03 | 2017-12-05 | Cree, Inc. | Solid state lighting apparatus and circuits including LED segments configured for targeted spectral power distribution and methods of operating the same |
US8736186B2 (en) | 2011-11-14 | 2014-05-27 | Cree, Inc. | Solid state lighting switches and fixtures providing selectively linked dimming and color control and methods of operating |
US10043960B2 (en) | 2011-11-15 | 2018-08-07 | Cree, Inc. | Light emitting diode (LED) packages and related methods |
US10231300B2 (en) | 2013-01-15 | 2019-03-12 | Cree, Inc. | Systems and methods for controlling solid state lighting during dimming and lighting apparatus incorporating such systems and/or methods |
US10264638B2 (en) | 2013-01-15 | 2019-04-16 | Cree, Inc. | Circuits and methods for controlling solid state lighting |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1199074A (en) * | 1967-07-31 | 1970-07-15 | Watford Electric Company Ltd | Improvements in Interlock Devices |
US3651709A (en) * | 1970-06-04 | 1972-03-28 | Outboard Marine Corp | Dual station binnacle control |
FR2480993A1 (en) * | 1980-04-17 | 1981-10-23 | Telemecanique Electrique | LOCKING DEVICE BETWEEN TWO REMOTE ELECTRICAL DEVICES AND INSTALLATION EMPLOYING THE SAME |
US4400599A (en) * | 1981-10-30 | 1983-08-23 | Square D Company | Flexible cable mechanical interlock for electric control devices |
DE3412518A1 (en) * | 1984-04-04 | 1985-10-24 | Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn | Control key with rotating drive |
US4626638A (en) * | 1984-12-06 | 1986-12-02 | Siemens Energy & Automation, Inc. | Operating system for remote electrical equipment |
US4620077A (en) * | 1985-02-19 | 1986-10-28 | Cts Corporation | Integral switch connector with remote actuator |
DE3672464D1 (en) * | 1985-12-20 | 1990-08-09 | Siemens Ag | ELECTRICAL SWITCHING DEVICE WITH A PULL-IN FRAME AND A SWITCHGEAR TO BE INSERTED IN IT. |
DE3611020A1 (en) * | 1986-03-27 | 1987-10-01 | Siemens Ag | ARRANGEMENT FOR LOGICALLY LINKING MECHANICAL SIGNALS |
ES2034111T3 (en) * | 1987-12-14 | 1993-04-01 | Sprecher Energie Ag | ELASTIC FORCE ACCUMULATOR FOR A HIGH VOLTAGE SWITCH. |
FR2624647A1 (en) * | 1987-12-14 | 1989-06-16 | Merlin Gerin | INTERLOCKING A PLURALITY OF CIRCUIT BREAKERS |
DE9001127U1 (en) * | 1990-02-01 | 1991-05-29 | Kloeckner-Moeller Elektrizitaets Gmbh, 5300 Bonn, De | |
FR2703183B1 (en) * | 1993-03-25 | 1995-05-19 | Gec Alsthom Equip Basse Tens | Safety device for mechanically locking circuit breakers between them. |
DE4333828C1 (en) * | 1993-09-30 | 1995-03-09 | Siemens Ag | Device for controlling the opening of a circuit breaker |
DE4439751C2 (en) * | 1994-10-31 | 1998-07-09 | Siemens Ag | Arrangement for interlocking circuit breakers |
-
1994
- 1994-10-31 DE DE4439751A patent/DE4439751C2/en not_active Expired - Fee Related
-
1995
- 1995-10-30 EP EP95935837A patent/EP0789925B1/en not_active Expired - Lifetime
- 1995-10-30 JP JP8514162A patent/JPH10507866A/en active Pending
- 1995-10-30 DE DE59502437T patent/DE59502437D1/en not_active Expired - Fee Related
- 1995-10-30 US US08/817,839 patent/US5847340A/en not_active Expired - Fee Related
- 1995-10-30 WO PCT/DE1995/001520 patent/WO1996013842A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9613842A1 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6657524B2 (en) | 2001-09-03 | 2003-12-02 | Siemens Aktiengesellschaft | Circuit breaker with a detachable connection between a switching contact arrangement and a drive apparatus which operates it, as well as a method for removal and installation of the switching contact arrangement |
DE102007037066A1 (en) * | 2007-08-03 | 2009-02-05 | Siemens Ag | Coupling arrangement for transmitting the rotational movement of a switching shaft of an electrical switch to at least one position indicator |
WO2009019175A1 (en) * | 2007-08-03 | 2009-02-12 | Siemens Aktiengesellschaft | Coupling arrangement for transmission of the rotational movement of a switching shaft of an electrical switch to at least one position signalling device |
US8232490B2 (en) | 2007-08-03 | 2012-07-31 | Siemens Aktiengesellschaft | Switch activated slide linkage |
Also Published As
Publication number | Publication date |
---|---|
JPH10507866A (en) | 1998-07-28 |
EP0789925B1 (en) | 1998-06-03 |
US5847340A (en) | 1998-12-08 |
DE59502437D1 (en) | 1998-07-09 |
DE4439751A1 (en) | 1996-05-02 |
DE4439751C2 (en) | 1998-07-09 |
WO1996013842A1 (en) | 1996-05-09 |
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