EP3361490A1 - Switch which can be actuated on one side with central contact and t-shaped mast with such a switch - Google Patents
Switch which can be actuated on one side with central contact and t-shaped mast with such a switch Download PDFInfo
- Publication number
- EP3361490A1 EP3361490A1 EP18153035.3A EP18153035A EP3361490A1 EP 3361490 A1 EP3361490 A1 EP 3361490A1 EP 18153035 A EP18153035 A EP 18153035A EP 3361490 A1 EP3361490 A1 EP 3361490A1
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- housing
- switching
- shaft
- electrical
- switch
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- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 125000006850 spacer group Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
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- 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
- H01H33/008—Pedestal mounted switch gear combinations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
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- 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
- H01H33/022—Details particular to three-phase circuit breakers
-
- 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
- H01H2009/0088—Details of rotatable shafts common to more than one pole or switch unit
Definitions
- the invention relates to a one-sided actuated switch with center tap and a T-shaped masts with such a switch according to the preamble of claim 1 and 8.
- electrical switches are used with a center tap, in addition to the input-side terminal contacts, are connected to the power supplying lines, and the output-side terminal contacts to which the lines are connected to the consumers, in addition further output-side terminal contacts, via which a additional consumers, such as an industrial plant or a district, etc., even then can be supplied with electric power, when the supply lines connected to the first output-side terminal contacts are de-energized.
- a additional consumers such as an industrial plant or a district, etc.
- the known switches used for this purpose have a housing in which first and second electrical switching elements can be switched independently of each other via a respectively associated first or second switching shaft, between the input-side electrical connection contacts and the output side electrical Connection contacts and the output-side terminal contacts for the so-called center tap to make an electrically conductive connection.
- T-shaped medium voltage masts in particular the known T-shaped lattice towers, however, is not possible with the previous switches, as the bottom of the actuated push rod in a Distance of about 1.5 m from each other would be arranged, and accordingly one of the push rod would be positioned freely suspended under the boom.
- an electric switch with a center tap which can be operated from only one side by means of two arranged push rods.
- Another object of the invention is to provide a T-shaped mast on which a switch with center tap is arranged, which can be operated via two push rods from one side.
- the invention provides the advantage that existing T-shaped medium-voltage masts can be retrofitted in a cost-effective manner with an electrical switch, which has a central electric tap, for. To connect industrial plants or even city districts or solar farms locally to a main power supply line or to disconnect them in the event of a fault or work to be carried out.
- an electrical switch 2 for switching electrical voltages in the range of, for example, 5 kV to 35 kV or even more comprises a housing 6 in which first electrical switching elements 2 a are accommodated.
- the first electrical switching elements 2a are actuated via a first switching shaft 8a, which is led out of this on a first side 6a of the housing 6.
- a first pivot lever 10a is attached, via which the first switching shaft 8a can be rotated from a first open switching position to a second closed switching position in which the first electrical switching elements 2a an electrically conductive connection between an electrical input-side terminal contact 12 and make an electrical connection contact 14 for the center tap of the switch 2.
- second electrical switching elements 2b are arranged in the housing 6, which are actuated via a second switching shaft 8b, which is led out on a second side 6b of the housing 6 from this, which is the first side 6a opposite.
- a second pivot lever 10b is rotatably received, via which the second shift shaft 8b from a in Fig. 4 shown first open switching position can be rotated into a second closed switching position in which the second electrical switching elements 2b make an electrically conductive connection between the electrical connection contact 14 for the center tap and a third output side electrical connection contact 16 of the switch 2.
- the electrical switching elements 2 a and 2 b can either be known electrical contacts which are arranged in a protective gas atmosphere, or else semiconductor components which are accommodated in the housing 6 which is insulated from the medium voltage to the outside.
- first pivot lever 10a In order to rotate the first shift shaft 8a for closing or opening the electrical line connection between the connection contacts 12 and 14, the first pivot lever 10a is pivotally coupled to a first push rod 18a, which preferably extends down to the ground and in the lower part of the mast 4 via a first hand lever 19a can be actuated, as shown schematically in FIG Fig. 1 and 2 is indicated.
- a transverse shaft 20 is provided on the housing 6, which is rotatably mounted above the housing 6 in two mutually spaced holding plates 26a, 26b.
- the transverse shaft 20 extends as shown by Fig. 1 and 2 across the width of, for example, 1.2 to 1.5 m wide housing 6 from the first side 6a to the second side 6b thereof.
- a first lever arm 22a is rotatably attached to the first side of the housing 6a, which is pivotally coupled to a guided to the bottom second push rod 18b, which is pivotally coupled to the second lever arm 22b via a second hand lever 19b can be operated.
- the second lever arm 22b can be moved in the upward and downward directions, thereby rotating the transverse shaft 20 back and forth.
- a second lever arm 22b is rotatably mounted on the second side 6b of the housing 6, which is connected via a mechanical coupling rod 24 pivotally connected to the second pivot lever 10b to the movement of the second thrust rod 18b generated rotational movement of the transverse shaft 20 via the coupling rod 24 and the second pivot lever 10b to the second switching shaft 8b to transmit.
- the transverse shaft 20 is preferably mounted in two mutually parallel holding plates 26a, 26b, which also serve as holding elements, via which the housing 6 is fixed to the underside of the boom 4a or the cross member 29 of the mast 4.
- the bearing of the transverse shaft is in this case preferably in plain bearings, wherein between the first and the second lever arm 22a, 22b and the holding plates 26a, 26b each one Fixing element in the form of a spacer sleeve 28 a, 28 b is arranged, which prevent axial displacement of the transverse shaft 20 in the bearings relative to the housing 6.
- the first pivot lever 10a and / or the second pivot lever 10b in different angular positions on the associated first shift shaft 8a and / or second shift shaft 8b fastened.
- the second pivot lever 10b and the second lever arm 22b are aligned parallel to one another.
- the advantage is obtained that these two are moved synchronously with the transverse shaft 20, which makes the actuating travel between the hand lever 19b and the shift shaft 8b even.
- the coupling rod 24 may be designed as a lockable in different positions (through holes in the flat steel) lockable steel, e.g. with an end-formed eye on a pin not shown in detail with threaded portion engages which e.g. through the holes in the lever arm 22b, or in the pivot lever 10b (not shown) and e.g. can be fastened in different positions by bolts.
- the electric switch 2 is preferably mounted under the boom 4a on the boom itself or on the underside of the cross member 29 under the boom 4a, that the first housing side 6a facing the central pole body 4b.
- the first and second push rods 18a, 18b for Actuation of the first and second shift shaft 8a, 8b preferably extends in the vertical direction in the direction of the ground either on the outside of the mast body 4b.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Ein elektrischer Schalter (2) zur Aufnahme am Ausleger (4a) oder am Querträger (29) eines T-förmigen Masten (4), mit einem Gehäuse (6), in welchem erste elektrische Schaltelemente (2a) aufgenommen sind, die über eine an einer ersten Seite (6a) des Gehäuses (6) aus diesem herausgeführten ersten Schaltwelle (8a) betätigbar sind, sowie mit im Gehäuse (6) aufgenommenen zweiten elektrischen Schaltelementen (2b), die über eine, an einer der ersten Seite (6a) gegenüberliegenden zweiten Seite (6b) aus dem Gehäuse (6) herausgeführten zweiten Schaltwelle (8b) betätigbar sind, wobei die erste Schaltwelle (8a) über einen ersten, an dieser angeordneten Schwenkhebel (10a) aus einer ersten geöffneten Schaltstellung in eine zweite geschlossene Schaltstellung verdrehbar ist, in der die ersten Schaltelemente (2a) eine leitende Verbindung zwischen einem ersten eingangsseitigen Anschlusskontakt (12) und einem zweiten Anschlusskontakt (14) für den Mittenabgriff des Schalters (2) herstellen, und wobei an der zweiten Schaltwelle (8b) ein zweiter Schwenkhebel (10b) angeordnet ist, über welchen die zweite Schaltwelle (8b) aus einer ersten geöffneten Schaltstellung in eine zweite geschlossene Schaltstellung verdrehbar ist, in der die zweiten Schaltelemente (2b) eine Verbindung zwischen dem zweiten Anschlusskontakt für den Mittenabgriff (14) und einem dritten ausgangsseitigen Anschlusskontakt (16) erzeugen, und wobei der erste Schwenkhebel (10a) über ein erstes, mit diesem gelenkig gekoppeltes Schubgestänge (18a) aus der ersten in die zweite Schaltstellung verschwenkbar ist, zeichnet sich dadurch aus, dass am Gehäuse (6) eine gegenüber diesem drehbar gelagerte Querwelle (20) aufgenommen ist, welche sich über die Breite des Gehäuses (6) hinweg von der ersten Seite (6a) aus zur zweiten Seite (6b) des Gehäuses (6) erstreckt, dass an der Querwelle (20) auf der ersten Seite des Gehäuses (6a) ein erster Hebelarm (22a) drehfest aufgenommen ist, welcher über ein zweites, drehgelenkig mit diesem gekoppeltes Schubgestänge (18b) verschwenkbar ist, und dass an der Querwelle (20) auf der zweiten Seite (6b) des Gehäuses (6) ein zweiter Hebelarm (22b) drehfest an dieser aufgenommen ist, der über eine mechanische Koppelstange (24) drehgelenkig mit dem zweiten Schwenkhebel (10b) verbunden ist, um diesen durch eine lineare Bewegung des zweiten Schubgestänges (18b) zu verschwenken und dadurch die zweite Schaltwelle (2b) aus der ersten Schaltstellung in die zweite Schaltstellung zu verdrehen. An electrical switch (2) for receiving on the boom (4a) or on the cross member (29) of a T-shaped mast (4), with a housing (6) in which first electrical switching elements (2a) are accommodated, via an on a first side (6a) of the housing (6) can be actuated out of this first switching shaft (8a), and with second electrical switching elements (2b) accommodated in the housing (6), which are opposite one another on one of the first side (6a) second side (6b) of the housing (6) led out second switching shaft (8b) are actuated, wherein the first switching shaft (8a) via a first, arranged on this pivot lever (10a) from a first open switching position is rotated into a second closed switching position in which the first switching elements (2a) establish a conductive connection between a first input-side connection contact (12) and a second connection contact (14) for the center tap of the switch (2), and wherein on the second switching shaft (8b), a second pivot lever (10b) is arranged, via which the second switching shaft (8b) from a first open switching position into a second closed switching position is rotatable, in which the second switching elements (2b) a connection between the second connection contact for the center tap (14) and a third output-side terminal contact (16) produce, and wherein the first pivot lever (10a) via a first, articulated with this articulated push rod (18a) from the first to the second switching position is pivotal, draws characterized in that on the housing (6) has a relative to this rotatably mounted transverse shaft (20) is received, which extends across the width of the housing (6) from the first side (6a) to the second side (6b) of the housing ( 6) that on the transverse shaft (20) on the first side of the housing (6a) a first lever arm (22a) is rotatably received, which via a second, d rehgelenkig with this coupled push rod (18b) is pivotable, and that at the transverse shaft (20) on the second side (6b) of the housing (6), a second lever arm (22b) is rotatably received at this, which via a mechanical coupling rod (24 ) is pivotally connected to the second pivot lever (10b) to pivot it by a linear movement of the second push link (18b) and thereby to rotate the second shift shaft (2b) from the first shift position to the second shift position.
Description
Die Erfindung betrifft einen einseitig betätigbaren Schalter mit Mittenabgriff sowie einen T-förmigen Masten mit einem solchen Schalter gemäß dem Oberbegriff von Anspruch 1 und 8.The invention relates to a one-sided actuated switch with center tap and a T-shaped masts with such a switch according to the preamble of claim 1 and 8.
Auf dem Gebiet der Verteilung von elektrischem Strom ist es bekannt, elektrischen Strom oberirdisch über Überlandleitungen zu führen, die im Abstand zum Erdboden an T-förmigen oder auch H-förmigen Masten aufgenommen sind.In the field of distribution of electric power, it is known to conduct electrical power above ground via power lines, which are received at a distance from the ground on T-shaped or H-shaped masts.
Um für den Fall einer Störung, beispielsweise bei einem elektrischen Kurzschluss oder einer Leitungsunterbrechung in einem durch eine elektrische Mittelspannungsleitung versorgten Gebiet die Möglichkeit zu haben, die Stromzufuhr zu diesem Gebiet lokal zu unterbrechen, ist es aus dem Stand der Technik bekannt, an den Masten elektrische Schalter vorzusehen, mit welchen z. B. die von einem Kraftwerk her kommenden Leitungen von den zu einem Stadtteil oder einem sonstigen Bereich führenden Leitungen elektrisch getrennt werden können, sodass letztere für Arbeiten an den Leitungen stromlos geschaltet werden können. Hierbei werden unter anderem elektrische Schalter mit einem Mittenabgriff eingesetzt, die neben den eingangsseitigen Anschlusskontakten, an die den Strom zuführenden Leitungen angeschlossen sind, und den ausgangsseitigen Anschlusskontakten, an die die Leitungen zu den Verbrauchern angeschlossen sind, zusätzlich weitere ausgangsseitige Anschlusskontakte besitzen, über welchen ein zusätzlicher Verbraucher, beispielsweise eine Industrieanlage oder ein Stadtteil etc., auch dann noch mit elektrischem Strom versorgt werden kann, wenn die an den ersten ausgangsseitigen Anschlusskontakten angeschlossenen Versorgungsleitungen stromlos geschaltet sind. Entsprechendes gilt für den Anschluss von lokalen Stromerzeugern, wie z.B. Solarfarmen oder Windkraftparks.In order to be able to interrupt the power supply to this area locally in the event of a fault, for example in the case of an electrical short circuit or a line interruption in an area supplied by a medium-voltage electrical line, it is known from the prior art to provide electric power to the masts Provide switch with which z. B. the lines coming from a power plant can be electrically separated from the leading to a district or other area lines, so that the latter can be switched off for work on the lines. Here, inter alia, electrical switches are used with a center tap, in addition to the input-side terminal contacts, are connected to the power supplying lines, and the output-side terminal contacts to which the lines are connected to the consumers, in addition further output-side terminal contacts, via which a additional consumers, such as an industrial plant or a district, etc., even then can be supplied with electric power, when the supply lines connected to the first output-side terminal contacts are de-energized. The same applies to the connection of local power generators, such as e.g. Solar farms or wind farms.
Die zu diesem Zwecke eingesetzten bekannten Schalter besitzen ein Gehäuse, in welchem erste und zweite elektrische Schaltelemente über eine jeweils zugehörige erste oder zweite Schaltwelle unabhängig voneinander geschaltet werden können, um zwischen den eingangsseitigen elektrischen Anschlusskontakten und den ausgangsseitigen elektrischen Anschlusskontakten und den ausgangsseitigen Anschlusskontakten für den sogenannten Mittenabgriff eine elektrisch leitende Verbindung herzustellen.The known switches used for this purpose have a housing in which first and second electrical switching elements can be switched independently of each other via a respectively associated first or second switching shaft, between the input-side electrical connection contacts and the output side electrical Connection contacts and the output-side terminal contacts for the so-called center tap to make an electrically conductive connection.
Bei den zuvor beschriebenen Schaltern des Standes der Technik, wie z.B. den unter der Bezeichnung "NXBD" auf dem Markt erhältlichen Schaltern, ergibt sich hierbei das Problem, dass die erste und die zweite Schaltwelle zum Betätigen der jeweiligen elektrischen Schaltelemente im Inneren des Gehäuses auf einander gegenüberliegenden Seiten des Gehäuses aus diesem heraus geführt sind. Dies führt dazu, dass bei den Schaltern, die beispielsweise eine Gehäusebreite von ca. 1,2 m besitzen, die Schubgestänge, über die die Schaltwellen über jeweilige Schwenkhebel vom Boden aus verdreht werden können, ebenfalls einen lichten Abstand von ca. 1,2 bis 1,5 m zueinander aufweisen. Hierdurch lassen sich diese bekannten Schalter bisher nur an H-förmigen Masten einsetzen, deren vertikale Mastkörper einen entsprechenden Abstand von ca. 1,2 m bis 1,5 m oder auch mehr besitzen. Allerdings sind derartige H-förmige Masten vergleichsweise teuer, da insgesamt 2 vertikale Mastkörper samt Fundament installiert werden müssen, um die Schalter überhaupt einsetzen zu können.In the previously described switches of the prior art, e.g. the available under the name "NXBD" switches, this results in the problem that the first and the second switching shaft for actuating the respective electrical switching elements in the interior of the housing are guided on opposite sides of the housing out of this. This means that in the switches, for example, have a housing width of about 1.2 m, the push rod, via which the switching shafts can be rotated via respective pivot lever from the bottom, also a clear distance of about 1.2 to 1.5 m to each other. As a result, these known switches can be used only on H-shaped masts whose vertical mast body have a corresponding distance of about 1.2 m to 1.5 m or more. However, such H-shaped masts are relatively expensive, since a total of 2 vertical mast body including foundation must be installed in order to use the switch at all.
Eine Montage an den heutzutage in erster Linie eingesetzten, gegenüber H-förmigen Masten erheblich kostengünstigeren T-förmigen Mittelspannungsmasten, wie insbesondere den bekannten T-förmigen Gittermasten, ist hingegen mit den bisherigen Schaltern nicht möglich, da die vom Boden aus zu betätigenden Schubgestänge in einem Abstand von ca. 1,5 m voneinander angeordnet wären, und demgemäß eines der Schubgestänge frei hängend unter dem Ausleger positioniert wäre.A mounting on the nowadays used in the first place, compared to H-shaped masts considerably cheaper T-shaped medium voltage masts, in particular the known T-shaped lattice towers, however, is not possible with the previous switches, as the bottom of the actuated push rod in a Distance of about 1.5 m from each other would be arranged, and accordingly one of the push rod would be positioned freely suspended under the boom.
Demgemäß ist es die Aufgabe der vorliegenden Erfindung, einen elektrischen Schalter mit einem Mittenabgriff zu schaffen, welcher sich von lediglich einer Seite aus mittels zweier angeordneter Schubgestänge betätigen lässt.Accordingly, it is the object of the present invention to provide an electric switch with a center tap, which can be operated from only one side by means of two arranged push rods.
Diese Aufgabe wird erfindungsgemäß durch einen Schalter mit den Merkmalen von Anspruch 1 gelöst.This object is achieved by a switch with the features of claim 1.
Eine weitere Aufgabe der Erfindung besteht darin, einen T-förmigen Masten zu schaffen, an dem ein Schalter mit Mittenabgriff angeordnet ist, welcher sich über zwei Schubgestänge von einer Seite aus bedienen lässt.Another object of the invention is to provide a T-shaped mast on which a switch with center tap is arranged, which can be operated via two push rods from one side.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale von Anspruch 8 gelöst.This object is achieved by the features of claim 8.
Weitere Merkmale der Erfindung sind in den Unteransprüchen enthalten.Further features of the invention are contained in the subclaims.
Durch die Erfindung ergibt sich der Vorteil, dass bestehende T-förmige Mittelspannungsmasten in kostengünstiger Weise mit einem elektrischen Schalter nachgerüstet werden können, welcher einen elektrischen Mittenabgriff hat, um z.B. Industrieanlagen oder auch Stadtteile oder Solarfarmen lokal an eine Hauptstromversorgungsleitung anzuschließen oder im Falle einer Störung oder auszuführender Arbeiten von dieser zu trennen.The invention provides the advantage that existing T-shaped medium-voltage masts can be retrofitted in a cost-effective manner with an electrical switch, which has a central electric tap, for. To connect industrial plants or even city districts or solar farms locally to a main power supply line or to disconnect them in the event of a fault or work to be carried out.
Die Erfindung wird nachfolgend mit Bezug auf die Zeichnungen anhand von bevorzugten Ausführungsformen beschrieben.The invention will be described below with reference to the drawings based on preferred embodiments.
In den Zeichnungen zeigen:
- Fig. 1
- schematische Frontansicht eines Masten mit einem Ausleger und erfindungsgemäßen Antrieb des elektrischen Schalters mit Befestigung des Schalters am Ausleger,
- Fig. 2
- eine seitliche Ansicht des Masten von
Fig. 1 , - Fig. 3
- eine vergrößerte schematische Darstellung des erfindungsgemäßen Schalterantriebes des elektrischen Schalters mit Mittenabgriff, und
- Fig. 4
- eine schematische Schaltungsdarstellung des Schalters mit den im Inneren des Gehäuses angeordneten elektrischen Schaltelementen,
- Fig. 5
- schematische Frontansicht eines Masten mit einem Ausleger und erfindungsgemäßen Antrieb des elektrischen Schalters mit Befestigung des Schalters am Querträger.
- Fig. 1
- schematic front view of a mast with a boom and drive according to the invention of the electric switch with attachment of the switch on the boom,
- Fig. 2
- a side view of the mast of
Fig. 1 . - Fig. 3
- an enlarged schematic representation of the switch drive according to the invention of the electric switch with center tap, and
- Fig. 4
- 2 shows a schematic circuit diagram of the switch with the electrical switching elements arranged in the interior of the housing,
- Fig. 5
- schematic front view of a mast with a boom and drive according to the invention of the electric switch with attachment of the switch on the cross member.
Wie in den
Wie der Darstellung von
Die elektrischen Schaltelemente 2a und 2b können entweder bekannte elektrische Kontakte sein, die in einer Schutzgasatmosphäre angeordnet sind, oder auch Halbleiterbauelemente, die in dem nach außen hin gegen Mittelspannung isolierten Gehäuse 6 aufgenommen sind.The
Um die erste Schaltwelle 8a zum Schließen oder Öffnen der elektrischen Leitungsverbindung zwischen den Anschlusskontakten 12 und 14 zu verdrehen, ist der erste Schwenkhebel 10a gelenkig mit einem ersten Schubgestänge 18a gekoppelt, welches sich vorzugsweise bis zum Boden herab erstreckt und im unteren Teil des Masts 4 über einen ersten Handhebel 19a betätigt werden kann, wie dies schematisch in
Wie den Darstellungen der
An der Querwelle 20, vorzugsweise an deren freiem Wellenende, ist auf der zweiten Seite 6b des Gehäuses 6 ein zweiter Hebelarm 22b drehfest befestigt, der über eine mechanische Koppelstange 24 drehgelenkig mit dem zweiten Schwenkhebel 10b verbunden ist, um die bei einer Bewegung des zweiten Schubgestänges 18b erzeugte Drehbewegung der Querwelle 20 über die Koppelstange 24 und den zweiten Schwenkhebel 10b auf die zweite Schaltwelle 8b zu übertragen.On the
Hierdurch wird es ermöglicht, sowohl das erste, als auch das zweite Schubgestänge gemeinsam auf der ersten Seite des Gehäuses 6 anzuordnen und im Wesentlichen parallel zueinander zwischen dem Gehäuse 6 und dem Mastkörper 4b oder, wie gezeigt, innerhalb des Mastkörpers 4b zu den im Bodenbereich angeordneten Handhebeln 19a und 19b zu führen, wie dies in den
Wie in
Die Lagerung der Querwelle erfolgt hierbei bevorzugt in Gleitlagern, wobei zwischen dem ersten und dem zweiten Hebelarm 22a, 22b und den Halteblechen 26a, 26b jeweils ein Fixierelement in Form einer Distanzhülse 28a, 28b angeordnet ist, welche eine axiale Verschiebung der Querwelle 20 in den Lagern relativ zum Gehäuse 6 verhindern. Hierdurch ergibt sich eine kostengünstige und zuverlässige Lagerung der Querwelle, die auch nach langen Jahren eine in diesem Falle erforderliche höchstmögliche Zuverlässigkeit bei der Betätigung der ersten und zweiten Schaltwelle 8a, 8b sicherstellt.The bearing of the transverse shaft is in this case preferably in plain bearings, wherein between the first and the
Der erste Schwenkhebel 10a und/oder der zweite Schwenkhebel 10b in verschiedenen Winkelpositionen auf der zugehörigen ersten Schaltwelle 8a und/oder zweiten Schaltwelle 8b befestigbar. Hierdurch ergibt sich der Vorteil, dass die Winkelausrichtungen der Schwenkhebel 10a, 10b gegenüber der Querwelle 20 flexibel und mit geringem Aufwand an unterschiedliche Aufhängepunkte des Gehäuses 6 sowie Konfigurationen der Gestänge 18a, 18b angepasst werden können.The first pivot lever 10a and / or the
Bei der bevorzugten Ausführungsform der Erfindung sind der zweite Schwenkhebel 10b und der zweite Hebelarm 22b parallel zueinander ausgerichtet. Hierdurch wird der Vorteil erhalten, dass diese beide synchron mit der Querwelle 20 mitbewegt werden, was den Betätigungsweg zwischen dem Handhebel 19b und der Schaltwelle 8b vergleichmäßigt.In the preferred embodiment of the invention, the
In Hinblick auf eine leichte Anpassbarkeit des Bewegungsweges der Handhebel 19a, 19b an den Bewegungsweg der Schaltwellen 8a, 8b stellt es einen weiteren Vorteil dar, wenn die Länge der Koppelstange 24 und/oder die Position der drehgelenkigen Verbindung zwischen der Koppelstange 24 und dem zweiten Hebelarm 22b und/oder der Koppelstange 24 und dem zweiten Schwenkhebel 10b verändert werden können. Hierzu kann die Koppelstange 24 als ein in unterschiedlichen Positionen (durch Bohrungen im Flachstahl) arretierbarer Flachstahl ausgeführt sein, der z.B. mit einem am Ende geformten Auge an einem nicht näher gezeigten Zapfen mit Gewindeabschnitt angreift, welcher z.B. durch die Bohrungen im Hebelarm 22b, bzw. im Schwenkhebel 10b hindurchgreift (nicht gezeigt) und z.B. in unterschiedlichen Positionen durch Bolzen befestigt werden kann.In view of an easy adaptability of the movement path of the
Der elektrische Schalter 2 wird bevorzugt unter dem Ausleger 4a am Ausleger selbst oder an der Unterseite des Querträgers 29 unter dem Ausleger 4a befestigt, dass die erste Gehäuseseite 6a dem zentralen Mastkörper 4b zugewandt ist. Das erste und zweite Schubgestänge 18a, 18b zur Betätigung der ersten und zweiten Schaltwelle 8a, 8b erstreckt sich dabei bevorzugt in vertikaler Richtung in Richtung zum Boden hin entweder an der Außenseite des Mastkörpers 4b.The
- 22
- elektrischer Schalterelectrical switch
- 2a2a
- erstes elektrisches Schaltelementfirst electrical switching element
- 2b2 B
- zweites elektrisches Schaltelementsecond electrical switching element
- 44
- T-förmiger MastT-shaped mast
- 4a4a
- Auslegerboom
- 4b4b
- zentraler Mastkörpercentral mast body
- 66
- Gehäusecasing
- 6a6a
- erste Gehäuseseitefirst housing side
- 6b6b
- zweite Gehäuseseitesecond side of the housing
- 8a8a
- erste Schaltwellefirst shift shaft
- 8b8b
- zweite Schaltwellesecond shift shaft
- 10a10a
- erster Schwenkhebelfirst pivot lever
- 10b10b
- zweiter Schwenkhebelsecond pivot lever
- 1212
- erster eingangsseitiger elektrischer Anschlusskontaktfirst input-side electrical connection contact
- 1414
- zweiter elektrischer Anschlusskontakt für Mittenabgriffsecond electrical connection contact for center tap
- 1616
- dritter ausgangsseitiger elektrischer Anschlusskontaktthird output side electrical connection contact
- 18a18a
- erstes Schubgestängefirst pushrod
- 18b18b
- zweites Schubgestängesecond pushrod
- 19a19a
- erster Handhebelfirst hand lever
- 19b19b
- zweiter Handhebelsecond hand lever
- 2020
- Querwellecross shaft
- 22a22a
- erster Hebelarmfirst lever arm
- 22b22b
- zweiter Hebelarmsecond lever arm
- 2424
- Koppelstangecoupling rod
- 26a,b26a, b
- HalteblecheHaltebleche
- 28a, b28a, b
- DistanzhülseStand Off
- 2929
- Querträgercrossbeam
Claims (9)
dadurch gekennzeichnet,
dass am Gehäuse (6) eine gegenüber diesem drehbar gelagerte Querwelle (20) aufgenommen ist, welche sich über die Breite des Gehäuses (6) hinweg von der ersten Seite (6a) aus zur zweiten Seite (6b) des Gehäuses (6) erstreckt,
dass an der Querwelle (20) auf der ersten Seite des Gehäuses (6a) ein erster Hebelarm (22a) drehfest aufgenommen ist, welcher über ein zweites, drehgelenkig mit diesem gekoppeltes Schubgestänge (18b) verschwenkbar ist, und dass an der Querwelle (20) auf der zweiten Seite (6b) des Gehäuses (6) ein zweiter Hebelarm (22b) drehfest an dieser aufgenommen ist, der über eine mechanische Koppelstange (24) drehgelenkig mit dem zweiten Schwenkhebel (10b) verbunden ist, um diesen durch eine lineare Bewegung des zweiten Schubgestänges (18b) zu verschwenken und dadurch die zweite Schaltwelle (2b) aus der ersten Schaltstellung in die zweite Schaltstellung zu verdrehen.Electric switch (2) for receiving on a boom (4a) or cross member (29), having a housing (6) in which are accommodated first electrical switching elements (2a) which are connected to a first side (6a) of the housing (6a). 6) can be actuated from this first switching shaft (8a), and with second electrical switching elements (2b) accommodated in the housing (6), which are removed from the housing (6b) via a second side (6b) opposite one of the first side (6a). 6) led out second switching shaft (8b) are actuated, wherein the first switching shaft (8a) via a first, arranged on this pivot lever (10a) from a first open switching position into a second closed switching position is rotated, in which the first electrical switching elements (2a ) an electrically conductive connection between a first input-side electrical connection contact (12) and a second electrical connection contact (14) for the center tap of the scarf (2), and wherein on the second switching shaft (8b), a second pivot lever (10b) is arranged, via which the second switching shaft (8b) from a first open switching position is pivotable in a second closed switching position in which the second electrical Switching elements (2b) establish an electrically conductive connection between the second electrical connection contact for the center tap (14) and a third output-side electrical connection contact (16) of the electrical switch (2), and wherein the first pivot lever (10a) via a first, with this articulated coupled pushrod (18a) is pivotable from the first to the second switching position,
characterized,
that a relative thereto rotatably mounted transverse shaft (20) is received on the housing (6), which away from the first side (6a) of the second side (6b) of the housing (6) extends over the width of the housing (6),
in that a first lever arm (22a) is rotatably received on the transverse shaft (20) on the first side of the housing (6a), which is pivotable via a second pivot linkage (18b) coupled thereto in a pivoting manner, and in that on the transverse shaft (20). on the second side (6b) of the housing (6) a second lever arm (22b) is rotatably received in this, which is connected via a mechanical coupling rod (24) pivotally connected to the second pivot lever (10b) to this by a linear Movement of the second thrust rod (18b) to pivot and thereby to rotate the second switching shaft (2b) from the first switching position to the second switching position.
dadurch gekennzeichnet,
dass die Querwelle (20) in zwei beabstandet zueinander angeordneten Halteblechen (26a, 26b) drehbar gelagert ist, die auf der dem zweiten elektrischen Anschlusskontakt(14) für den Mittenabgriff gegenüberliegenden Seite des Gehäuses (6) angeordnet sind.Device according to claim 1,
characterized,
that the transverse shaft (20) spaced apart in two mutually arranged holding plates (26a, 26b) is rotatably mounted on said second electrical terminal (14) opposite to the center tap of the housing (6) are arranged.
dadurch gekennzeichnet,
dass die Querwelle (20) in den Halteblechen (26a, 26b) in Gleitlagern gelagert ist.Device according to claim 2,
characterized,
that the transverse shaft (20) (26a, 26b) is mounted in plain bearings in the support plates.
dadurch gekennzeichnet,
dass die Querwelle (20) in axialer Richtung durch wenigstens ein Fixierelement (28a, 28b) gegen eine axiale Verschiebung relativ zum Gehäuse (6) fixiert ist.Device according to claim 2 or 3,
characterized,
that the transverse shaft (20) in the axial direction by at least one fixing element (28a, 28b) is fixed against axial displacement relative to the housing (6).
dadurch gekennzeichnet,
dass der zweite Schwenkhebel (10b) und der zweite Hebelarm (22b) im Wesentlichen parallel zueinander ausgerichtet sind.Device according to one of the preceding claims,
characterized,
in that the second pivot lever (10b) and the second lever arm (22b) are aligned substantially parallel to one another.
dadurch gekennzeichnet,
dass die Länge der Koppelstange (24) und/oder die Position der drehgelenkigen Verbindung zwischen der Koppelstange (24) und dem zweiten Hebelarm (22b) und/oder der Koppelstange (24) und dem zweiten Schwenkhebel (10b) veränderbar ist.Device according to one of the preceding claims,
characterized,
that the length of the coupling rod (24) and / or the position of the pivotal connection between the coupling rod (24) and the second lever arm (22b) and / or the coupling rod (24) and the second pivot lever (10b) is variable.
dadurch gekennzeichnet,
dass am Ausleger (4a) oder am Querträger (29) ein elektrischer Schalter (2) nach einem der vorhergehenden Ansprüche angeordnet ist.T-shaped mast, in particular lattice mast (4), which has a boom (4a)
characterized,
in that an electrical switch (2) according to one of the preceding claims is arranged on the extension arm (4a) or on the cross member (29).
dadurch gekennzeichnet,
dass der elektrische Schalter (2) an der Unterseite des Auslegers (4a) oder des Querträgers (29) an diesem in der Weise befestigt ist, dass die erste Gehäuseseite (6a) dem zentralen Mastkörper (4b) zugewandt ist, und dass das erste und zweite Schubgestänge (18a, 18b) zur Betätigung der ersten und zweiten Schaltwelle (8a, 8b) sich in vertikaler Richtung erstreckend zwischen der ersten Gehäuseseite (6a) und dem Mastkörper (4b) angeordnet sind.T-shaped mast according to claim 8,
characterized,
in that the electrical switch (2) on the underside of the arm (4a) or of the cross member (29) is fixed to the latter in such a way that the first side of the housing (6a) faces the central pole body (4b), and in that the first and second thrust linkage (18a, 18b) for actuating the first and second shift shaft (8a, 8b) are arranged extending in the vertical direction between the first housing side (6a) and the mast body (4b).
dadurch gekennzeichnet,
dass der Mast (4) ein Gittermast ist.T-shaped mast according to claim 8 or 9,
characterized,
that the mast (4) is a lattice mast.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017001272.5A DE102017001272A1 (en) | 2017-02-10 | 2017-02-10 | Single-sided switch with center tap and T-shaped mast with such a switch |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3361490A1 true EP3361490A1 (en) | 2018-08-15 |
EP3361490B1 EP3361490B1 (en) | 2019-03-27 |
EP3361490B8 EP3361490B8 (en) | 2019-06-12 |
Family
ID=61022247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18153035.3A Active EP3361490B8 (en) | 2017-02-10 | 2018-01-23 | Switch which can be actuated on one side with central contact and t-shaped mast with such a switch |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3361490B8 (en) |
DE (1) | DE102017001272A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5023415A (en) * | 1988-11-28 | 1991-06-11 | Hitachi, Ltd. | Switch apparatus |
US7026558B1 (en) * | 2004-01-07 | 2006-04-11 | Cleaveland/Price Inc. | Motor operator, with inherent decoupling characteristics, for electrical power switches |
-
2017
- 2017-02-10 DE DE102017001272.5A patent/DE102017001272A1/en active Pending
-
2018
- 2018-01-23 EP EP18153035.3A patent/EP3361490B8/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5023415A (en) * | 1988-11-28 | 1991-06-11 | Hitachi, Ltd. | Switch apparatus |
US7026558B1 (en) * | 2004-01-07 | 2006-04-11 | Cleaveland/Price Inc. | Motor operator, with inherent decoupling characteristics, for electrical power switches |
Non-Patent Citations (1)
Title |
---|
ABB: "Double Sectos NXBD Switch Disconnector For Overhead Networks", 1 July 2011 (2011-07-01), Xiamen Fujian, China, pages 1 - 4, XP055483734, Retrieved from the Internet <URL:https://library.e.abb.com/public/79355ecc6bf8dbd048257a7f004796a1/NXBD11GB2011_7_1.pdf> [retrieved on 20180613] * |
Also Published As
Publication number | Publication date |
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DE102017001272A1 (en) | 2018-08-16 |
EP3361490B1 (en) | 2019-03-27 |
EP3361490B8 (en) | 2019-06-12 |
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