EP1058281B1 - Niederspannungs-Schaltgerät mit Anschlussschienen sowie Verfahren zur Erkennung des Bemessungsstromes des Schaltgerätes - Google Patents
Niederspannungs-Schaltgerät mit Anschlussschienen sowie Verfahren zur Erkennung des Bemessungsstromes des Schaltgerätes Download PDFInfo
- Publication number
- EP1058281B1 EP1058281B1 EP20000250169 EP00250169A EP1058281B1 EP 1058281 B1 EP1058281 B1 EP 1058281B1 EP 20000250169 EP20000250169 EP 20000250169 EP 00250169 A EP00250169 A EP 00250169A EP 1058281 B1 EP1058281 B1 EP 1058281B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching device
- connecting rails
- low
- cutouts
- voltage switching
- 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 - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/06—Distinguishing marks, e.g. colour coding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
-
- 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
- H01H9/52—Cooling of switch parts
-
- 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
- H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
- H01H2009/188—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks with indication of rating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H2011/0093—Standardization, e.g. limiting the factory stock by limiting the number of unique, i.e. different components
-
- 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
- H01H71/08—Terminals; Connections
Definitions
- the invention relates to a low-voltage switching device, such as z. B. a low voltage circuit breaker with one off a rear wall and a front part existing housing and at least one contact system located in this housing, the two roughly parallel connection rails for connection of the contact system with an external circuit, wherein the connecting rails with end ends extend the back wall and by fasteners in the Housing are locked.
- the invention is also concerned with a procedure to use the connecting rails to or rated current of the switching device.
- connection rails are for the properties of a switching device essential because they determine based on their Resilience the assignment of the entire device to a specific one Rated current or nominal current. Therefore has already been tried with different means, using connecting rails high resilience with comparatively small dimensions and to develop with simplified manufacturability.
- the top of the Connection rails have a fixed switch contact and must be in one insulating wall body arranged and against the forces supported when the moving contacts hit be that the prescribed service life of the switchgear is observed. This requires an adapted design the interacting parts.
- connecting rails and the one that receives them Housing not insignificantly stressed by forces that derive from further current conductors or isolating contacts.
- connection rails Conventional switching devices, such as in DE 44 16 105 described screws that extend through transversely to the longitudinal axis the openings arranged and extend openings for their inclusion in the rear wall of the switchgear housing a corresponding nut thread is provided.
- circuit breakers mentioned with high rated currents of for example, 1000 to 6000 A have the connection rails a considerable cross-section. To fix them and to make the connections they are with several Cross holes and there is a corresponding number of fasteners required. The production and the installation of such connecting rails is consequently with a high cost of materials and manufacturing.
- connecting rails To produce these connecting rails are special Profiles used that have an integrally molded bar, from which pieces are then cut off, which form the connecting bar.
- the attachment of the connecting rail takes place by the switch contact system facing Page.
- the object of the present invention is therefore to Connection rails suitable for low-voltage switchgear to create that on the basis of a profiled Semi-finished products are economically producible, but above also have an increased thermal load capacity and are suitable for automated manufacturing and testing processes.
- each connecting rail entry slopes for ease of interaction with plug-in disconnector contacts his. This not only increases the mechanical insertion resistance reduced. Rather, the abrasion is reduced and the service life of the contact surfaces increases. This contributes to Lowering the electrical contact resistance and thus also contributes to less warming.
- Cutouts will be made in a production line for Switching device used automatic tester is able to for example using suitable test probes or styli Switchgear with different rated or nominal currents solely on the basis of the recesses in the connecting rails to identify.
- Such a method does not only allow the rated current recognize a properly installed switchgear, but -for example with multi-pole switching devices, which have a large number of connecting rails proper assembly. It gives the simultaneous or successive checking of the recesses by one or more probes that the signals are different are, this can only mean that erroneously different Connection rails were installed.
- FIG. 1 shows schematically a section through a low-voltage circuit breaker with the connecting rails according to the invention.
- FIG. 2 shows a possible configuration of the recess with a connection rail with a nominal current value of 5000 A. according to the present invention.
- FIG 3 shows a possible configuration of the recess with a connecting bar with a nominal current value of 6300 A. according to the present invention.
- Figures 4 and 5 illustrate the detection of the design or nominal current of a switching device by means of the cutouts in the associated connecting rails by a Probe of a test facility.
- Figure 1 shows schematically a section through a low-voltage circuit breaker 1 with one in its housing located, a movable contact 2 and a fixed Contact 3 having switch contact system.
- the connecting bar 5 serves as a carrier of the fixed Switching contact 3 and an associated arcing horn 7, while the connecting bar 6 by an articulated conductor arrangement 8 with the movable switch contact 2 of the switch contact system communicates.
- the connecting bar 5 with the fixed switching contact 3 is in the insulating wall body fixed, because during the switching process the movable contact 2 with full force on the fixed contact 3 hits.
- the lower connecting bar 6 is through a housing pocket equipped with a current transformer 9 10 led.
- On the parts of the Connection rails 5 and 6 can be a continuing rail be screwed on or a plug-in contact for slide-in switches be attached (not shown).
- On the end faces through the holes 13 for the mounting screws the cross section of the conductor rails weakened, or by the resistance of the contact transitions of the isolating contacts additionally heated ends of the connecting rails 5 and 6 are for enlarging the heat emitting Surface recesses 11 or provided, whereby better heat dissipation is achieved. Also are on these ends entry slopes 14 and 15 or 16 and 17 for a Easier interaction with plug-in isolating contacts is provided.
- connection rails shown 20 and 23 are examples of versions of the lower one Connection rail 6 in Figure 1. Both connection rails shown have the same external dimensions, i.e. you can in switchgear with the same dimensions as those provided in the housing Receiving openings used for the connection rails have different resilience on, e.g. B. 5000 A for the connecting rail 20 ( Figure 2) and 6300 A for the connecting bar 23 ( Figure 3). This is based on the fact that the connecting rail 20 according to FIG 2 due a profile indentation 21 opposite the connecting rail 23 according to FIG. 3 has a reduced cross section. Because the end faces of the connecting rails 20 and 23 with differently shaped recesses 22 and 24 are provided, but there is a distinguishing feature Available.
- the recess 22 of the connecting rail 20 ( Figure 2) designed approximately semicircular, while the recess 24 of the connecting rail 23 (FIG. 3) is approximately a rounded one Rectangle corresponds.
- the respective nominal current can both a fitter by eye and an automatic test machine, for example based on the different entrance depth of test probes or stylus needles.
- FIGS. 4 and 5 Such an automated nominal current detection is shown in FIGS. 4 and 5 as part of a corresponding procedure illustrated.
- FIGS. 4 and 5 show in an enlarged view Scale the end located on the outside of the switchgear a connecting rail 20 or 23 in connection with a Probe head 25.
- This contains three probe needles 26, 27 and 28, which are each under the action of a compression spring 29 and switch contacts coupled with the aforementioned styli 30. These are closed when the stylus 26, 27 and 28th are unloaded and therefore farthest from the probe 25 protrude. First of all, this allows a simple check of whether the probe is working properly.
- the signals specific to the cutouts 22 and 24 will be an evaluation device 31 supplied, the stored Contains signals of the total recesses provided. By comparing the signal supplied by the probe 25 with the stored signals done as a result on one Display field of the evaluation device 31 the output of the dimensioning or rated current with "5000 A” for a switching device with Connection rails 20 ( Figure 4) or with "6300 A” for one Switchgear with connection rails 23 ( Figure 5).
- the advantages of the solution according to the invention consist in one improved compared to the conventional connecting rails Heat dissipation due to an enlarged surface, especially with high nominal currents and a lower running-in resistance for slide-in switches. Furthermore, weight reduction of the total switch and a cost reduction reached, as well as a recognizability of the nominal current of the Connection rails for the fitter as well as for one Testing machines implemented.
- connection rails are also with others Switchgear available, for example with fuse switch disconnectors or insertable device combinations for Switchgear.
- the described connection rails are here analogously applicable with advantage.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Patch Boards (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Breakers (AREA)
Description
Damit ist einmal die Position des Festkontaktes zum Gehäuse bestimmt und zum Anderen wird die Befestigungsstelle von den genannten Kräften entlastet, so dass hier nur eine Fixierkraft benötigt wird, eine Belastung durch die Scherkraft und die Positionisierungskraft aber nicht auftritt.
- ein Tastkopf wird an die aus dem Gehäuse des Schaltgerätes herausragenden Enden der Anschlussschienen herangeführt,
- die jeweilige Ausbildung bzw. Form der Aussparung wird durch den Tastkopf erfaßt und als ein die Ausbildung bzw. Form repräsentierendes elektrisches Signal dargestellt,
- das elektrische Signal wird mit gespeicherten Signalen für die bei dem betreffenden Schaltgerät vorgesehenen Ausbildungen bzw. Formen von Aussparungen mit jeweils zugehörigem Bemessungs- bzw. Nennstrom verglichen und bei Übereinstimmung mit einem der gespeicherten Signale der zutreffenden Bemessungs- bzw. Nennstrom angezeigt.
Claims (8)
- Niederspannungs-Schaltgerät (1) mit einem aus einer Rückwand (4) und einem Vorderteil bestehenden Gehäuse und einem in diesem Gehäuse befindlichen Kontaktsystem, das wenigstens zwei etwa parallele Anschlussschienen (5, 6; 20, 23), zur Verbindung des Kontaktsystems mit einem äußeren Stromkreis aufweist, wobei sich die Anschlussschienen (5, 6; 20, 24) mit stirnseitigen Enden durch die Rückwand (4) erstrecken und durch Befestigungsmittel in dem Gehäuse arretiert,
dadurch gekennzeichnet, dass die freiliegenden Stirnflächen der stirnseitigen Enden der Anschlussschienen (5, 6; 20, 23), an die sich Kontaktflächen zur Verbindung der Anschlussschienen (5, 6; 20, 23) mit dem äußeren Stromkreis anschließen, zur Vergrößerung der wärmeabgebenden Oberfläche dienende Aussparungen (11, 12; 22, 24) aufweisen. - Niederspannungs-Schaltgerät nach Anspruch 1,
dadurch gekennzeichnet, dass die stirnseitigen Enden der Anschlussschienen(5, 6) Einfahrschrägen (14, 15; 16, 17) zur Erleichterung des Zusammenwirkens mit Einschub-Trennkontakten aufweisen. - Niederspannungs-Schaltgerät nach Anspruch 2,
dadurch gekennzeichnet, dass die Aussparungen (11, 12) in der Richtung der Breite der Anschlussschienen (5, 6) angeordnet sind. - Niederspannungs-Leistungsschalter nach Anspruch 1,
dadurch gekennzeichnet, dass die Aussparungen (11; 22, 24) in den Anschlussschienen (5, 6; 20, 23) in Abhängigkeit von einem Nenn- oder Bemessungsstrom des Schaltgerätes (1) unterschiedlich ausgebildet sind. - Niederspannungs-Schaltgerät nach Anspruch 4,
dadurch gekennzeichnet, dass die Aussparungen (11, 12) in den Anschlussschienen (5, 6) unterschiedlich gestaltete Formen aufweisen. - Niederspannungs-Schaltgerät nach Anspruch 4 oder 5,
dadurch gekennzeichnet, dass die Aussparungen (11, 12) in den Anschlussschienen (5, 6)
unterschiedliche Höhen aufweisen. - Niederspannungs-Schaltgerät nach Anspruch 4 oder 5,
dadurch gekennzeichnet, dass die Aussparungen (11, 12) in den Anschlussschienen (5, 6)
unterschiedliche Tiefen aufweisen. - Verfahren zur Erkennung des Bemessungs- oder Nennstromes eines Niederspannungs-Schaltgerätes nach einem der vorangehenden Ansprüche,
gekennnzeichnet durch
folgende Merkmale:ein Tastkopf (25) wird an die aus dem Gehäuse des Schaltgerätes herausragenden Enden der Anschlussschienen (20, 23) herangeführt,die jeweilige Ausbildung bzw. Form der Aussparung (22, 24) wird durch den Tastkopf (25) erfaßt und als ein die Ausbildung bzw. Form repräsentierendes elektrisches Signal dargestellt,das elektrische Signal wird mit gespeicherten Signalen für die bei dem betreffenden Schaltgerät vorgesehenen Ausbildungen bzw. Formen von Aussparungen mit jeweils zugehörigem Bemessungs- bzw. Nennstrom verglichen und bei Übereinstimmung mit einem der gespeicherten Signale der zutreffenden Bemessungs- bzw. Nennstrom angezeigt.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19925966 | 1999-05-31 | ||
DE19925966 | 1999-05-31 | ||
DE10021272A DE10021272A1 (de) | 1999-05-31 | 2000-04-26 | Niederspannungs-Schaltgerät mit Anschlusschienen sowie Verfahren zur Erkennung des Bemessungsstromes des Schaltgerätes |
DE10021272 | 2000-04-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1058281A2 EP1058281A2 (de) | 2000-12-06 |
EP1058281A3 EP1058281A3 (de) | 2002-04-24 |
EP1058281B1 true EP1058281B1 (de) | 2003-08-13 |
Family
ID=26005515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000250169 Expired - Lifetime EP1058281B1 (de) | 1999-05-31 | 2000-05-31 | Niederspannungs-Schaltgerät mit Anschlussschienen sowie Verfahren zur Erkennung des Bemessungsstromes des Schaltgerätes |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1058281B1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10219561A1 (de) * | 2002-04-26 | 2003-11-13 | Siemens Ag | Elektrischer Leistungsschalter mit einem Stromwandler |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3662137A (en) * | 1970-01-21 | 1972-05-09 | Westinghouse Electric Corp | Switchgear having heat pipes incorporated in the disconnecting structures and power conductors |
DE4416105C1 (de) * | 1994-04-19 | 1995-05-24 | Siemens Ag | Niederspannungs-Leistungsschalter mit einer Schaltkammer |
DE19643607A1 (de) * | 1996-05-13 | 1997-11-20 | Siemens Ag | Leistungsschalter für Niederspannung mit Anschlußschienen |
US5753875A (en) * | 1996-10-15 | 1998-05-19 | Eaton Corporation | Heat sink for contact stems of a vacuum interrupter and a vacuum interrupter therewith |
-
2000
- 2000-05-31 EP EP20000250169 patent/EP1058281B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1058281A2 (de) | 2000-12-06 |
EP1058281A3 (de) | 2002-04-24 |
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