EP2156454A1 - Switching pole for a high-voltage network - Google Patents

Switching pole for a high-voltage network

Info

Publication number
EP2156454A1
EP2156454A1 EP08760151A EP08760151A EP2156454A1 EP 2156454 A1 EP2156454 A1 EP 2156454A1 EP 08760151 A EP08760151 A EP 08760151A EP 08760151 A EP08760151 A EP 08760151A EP 2156454 A1 EP2156454 A1 EP 2156454A1
Authority
EP
European Patent Office
Prior art keywords
sensor
switching pole
switching
voltage
peripheral wall
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
Application number
EP08760151A
Other languages
German (de)
French (fr)
Other versions
EP2156454B1 (en
Inventor
Jochen Ermisch
Ralf-Reiner Volkmar
Jürgen EINSCHENK
Bernd Specht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2156454A1 publication Critical patent/EP2156454A1/en
Application granted granted Critical
Publication of EP2156454B1 publication Critical patent/EP2156454B1/en
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Links

Classifications

    • 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
    • H01H33/027—Integrated apparatus for measuring current or voltage
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • H01H2033/6623—Details relating to the encasing or the outside layers of the vacuum switch housings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/04—Cases; Covers
    • H01H23/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Definitions

  • the invention relates to a switching pole for a high-voltage network specified in the preamble of claim 1. Art.
  • Such a switching pole is already disclosed, for example, in US Pat. No. 5,729,888, wherein the switching device in the switching pole housing is a vacuum interrupter.
  • This vacuum interrupter is mounted in an upper chamber of the hollow arranged upright in the assembled state switching pole, wherein the Festkon ⁇ clock side up and the Bewegtemposeite located below.
  • On the fixed contact side of the fixed contact of the vacuum interrupter is conductively connected to an input terminal which is coaxial with the central longitudinal axis of the Wegpolgephinuses and protrudes with a serving for line connection threaded piece from the upper end of the housing.
  • a guide tube which is coupled to the movable contact of the interrupter and passes through a central opening in a cup-shaped collecting ring of a side protruding from the housing outgoing ⁇ tee.
  • the moving contact is connected under axial coupling to an insulated switching rod, which is permanently connected to the outgoing fitting in the upper end region.
  • the switch rod can be, for example, by a cam mechanism to adjust up or down, wherein the con- tacts the vacuum interrupter pressed against each other or be Offn ⁇ other moves.
  • a current ⁇ sensor and a voltage sensor are arranged on the switching pole.
  • the annular current sensor surrounds the input terminal and is thus arranged in the upper end of the Wegpolgephases.
  • the rod-shaped voltage sensor below the laterally in the central region of the Wegpolgephaseuses ange ⁇ arranged outlet fitting is integrated into the pipe wall, which limits the lower length of the hollow chamber at its periphery.
  • the invention is therefore based on the object to provide a switching pole ⁇ specified in the preamble of claim 1 type with a high breakdown safety in a combined arrangement of current and voltage sensor.
  • the switching pole for a high-voltage network comprises a switching pole housing made of solid insulating material, in which a Heidelbergein ⁇ direction is arranged with fixed and moving contact whose Be ⁇ wegtern on the direction reversible feed a shift rod between the on and the off position is movable, wherein in the closed position by means of the switching device, an input connection piece on the fixed contact side is electrically conductively connected to a outgoing connection piece on the moving contact side.
  • the switching pole ⁇ also includes a sensor array having a current and a voltage sensor. According to the current sensor and the voltage sensor on the peripheral wall of the
  • the high-voltage potential of the voltage sensor and the Erdpoten ⁇ tial of the current sensor spatially in particular in such a way apart by the provided between the sensors circumferential distance, the inhomogeneous field courses and local overrides ⁇ tion of the breakdown field strength of the insulating material and so ⁇ are reliably avoided with partial discharges.
  • the inhomogeneous field courses and local overrides ⁇ tion of the breakdown field strength of the insulating material and so ⁇ are reliably avoided with partial discharges.
  • the voltage sensor or current sensor additionally assigned to the connection piece may optionally be the voltage sensor or current sensor installed by the other connection piece. Alternatively, however, a voltage sensor or a current sensor can also be assigned to both connecting pieces if the current measurement should continue to take place on the other connecting piece as well.
  • the potentials of the voltage and current sensors applied to a common connection piece are spatially better controlled or deactivated. Because of the offset in the circumferential direction of the switch-pole housing, apart from the spatial equalization of the sensors, a field-technical optimization of the sensor pair associated with the connection piece inevitably results. If the switching pole is provided with only one voltage and one current sensor, these sensors can preferably be arranged at 180 degrees or at a different predeterminable angle on the circumference of the switching pole housing, which is particularly safe in terms of avoiding partial discharges.
  • Has voltage sensors which are arranged diametrically.
  • the voltage sensor or the two voltage sensors can be integrated, for example, by embedding or pouring, in each case into an assigned region of the circumferential wall of the switching pole.
  • theistssen ⁇ sensors are each integrated into a housing web, the tunnel ⁇ like extends along the outer circumference of the housing.
  • the length of the housing while the web so bemes ⁇ sen that the connected sensor line may be integrated with a longitudinal section in the housing web.
  • the current sensor is preferably at a distance to the circumferential wall of the switching pole in a ⁇ the on-circuit piece insulating branch pipe of the switching pole integrate.
  • the associated sensor line of the current sensor can be advantageously integrated into a further raised housing web, which runs from the branch pipe to the foot of the switching ⁇ pole.
  • the Sensorlei ⁇ tion of the voltage sensor in a conditional by the offset to the current sensor peripheral portion may be integrated into a torus of the Wegpolgephinuses extending under approximately four ⁇ circular curvature between the housing web of the voltage sensor and the branch pipe.
  • the voltage sensor is connected via an approximately right-angled bent ⁇ sensor line to the high-voltage potential of the ⁇ Bewegumbleseite.
  • the sensor line can consist of a strand which is guided in a bent at an angle of 90 degrees protective tube.
  • the sensor line of the voltage sensor may consist of a correspondingly bent wire conductor or wire bracket.
  • the most uniform possible wall thickness of the Wegpolgekoruses with raised embedding of sensors and possibly sensor lines has an advantageous effect on the material consumption in the manufacture of the housing.
  • the heat dissipation can be done without problems with strong heat load of Wegpols.
  • FIG. 1 shows a central longitudinal section through a switching pole, which is provided with a sensor arrangement
  • FIG. 2 shows a central longitudinal section through the switching pole with a relation to that of FIG. 1 rotated by 90 degrees cutting profile
  • Fig. 5 is a horizontal section through the switching pole at the level of its side outlet connection piece.
  • a standing arranged switching pole 1 is shown in section, which is to serve as a switching point in a conventional high voltage network ⁇ .
  • the switching pole 1 has a high-voltage shielding switching pole housing 2, which consists of solid insulating material and is cast, for example, of synthetic resin.
  • This Heidelbergpolgeophuse 2 is a total of tubular workedbil ⁇ det, wherein the hollow cross-section of the peripheral wall formed as a pipe wall 3 is increased in several stages from top to bottom.
  • an input terminal 4 which stands out with a threaded pin from the Heidelbergpolgeophuse 2 he ⁇ .
  • the einspei ⁇ sende power line can be connected.
  • a vacuum interrupter 5 is immovably mounted by means of a suitable potting compound, which is arranged coaxially to the central longitudinal axis 6.
  • the vacuum interrupter 5 comprises in a conventional manner a fixed and a moving contact whose contact surfaces are not shown under vacuum in the switching chamber of the interrupter 5 are arranged.
  • the immovable Festfest contact is constantly, z. B. via a fixed rod, conductively connected to the input terminal 4.
  • the moving contact with a moving contact ⁇ rod 7 is connected, which protrudes centrally through a guide tube from the lower end face of the vacuum interrupter 5.
  • the implementation of the BewegWalletstange is hermetically sealed, for example with ⁇ means of a suitable bellows.
  • the hollow cross-section of the switching pole housing 2 enclosed by the peripheral wall 3 increases approximately frustoconically.
  • a shift rod 8 whose lower end is hinged in the installed state to a Hubme ⁇ mechanism, not shown.
  • the shift rod 8 consists of an insulator material, while in the upper end region it consists of conductive material.
  • the upper end of the shift rod 8 is coupled under axial support from ⁇ with the end of BewegWalletstange 7, so that the Beweg Membershipstange 7 together with the upper end the shift rod 8 is moved.
  • the coupling must in this case take place above a pressure piece 9, which bridges a teles ⁇ like length-variable section of the shift rod with ⁇ means of a helical compression spring which is axially supported between two Ringtellern the shift rod.
  • the shift rod 8 can be provided with an overstroke, through which the contacts are pressed together in the on state with a defi ⁇ ned force resulting from the spring ⁇ force of the compressed helical compression spring.
  • the conductive end region of the shift rod 8 is z. B. via a flexible conductor strip, a sliding contact or the like constantly conductively connected to a leaving connection ⁇ piece 10, which passes through the peripheral wall 3 in the central region and projects laterally from this.
  • a branch pipe 11 is seen upstream, which may be advantageously formed integrally with the peripheral wall 3 from ⁇ .
  • an annular current sensor 12 is embedded in a lateral distance from the peripheral wall 3, with which the current flow in the outlet ⁇ connecting part 10 can be detected inductively in the usual way.
  • the associated sensor line 13 of the current sensor 12 is there ⁇ cast in a housing bar 14 which extends perpendicularly between the center of the branch pipe 11 and the foot of the switching ⁇ polgephaseuses 2. This also a winkelstei ⁇ fere connection of the radially protruding branch pipe 11 is ER- ranges.
  • a reinforcing ribs 15 extending in the circumferential direction of the peripheral wall 3 can be provided.
  • a rod-shaped voltage sensor 16 is provided, which is seen in plan view offset by an angle of 90 degrees to the current sensor 12 on the peripheral wall 3.
  • the staggered arrangement of the voltage sensor 16 and the laying of the ⁇ orderly sensor line are shown only schematically in Fig. 1 because of the cutting process.
  • the housing web 18 is above thepolssen ⁇ sors 16 approximately up to the height of the middle of the switching pole 2 ver ⁇ extended, so that a first longitudinal portion of the sensor cable is embedded in the fin extension 17th
  • the sensor line 17 is first bent by about 90 degrees and then passes to adapt to the circumferential curvature of the peripheral wall 3 in a raised annular bead 19 which extends from the upper end of the web 18 in a transverse plane to the branch pipe 11, in he led in and connected to the outlet fitting 10.
  • the voltage sensor 16 diametrically opposite, so offset in the circumferential direction by 180 degrees, a second, same construction same voltage sensor 16 'is disposed on the peripheral wall 3 of the Wegpolgephaseuses 2 at the same height, which also extends parallel to the central longitudinal axis 6 and in an assigned ⁇ Housing web 18 'is embedded.
  • This voltage ⁇ sensor 18 ' is to detect the voltage of the input connector 4, so its sensor line 17' within the switching pole 2 along the circumferential wall 3 upwards ge ⁇ leads is.

Landscapes

  • Measuring Fluid Pressure (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

The invention relates to a switching pole (1) for a high-voltage network, having a switching unit (5) disposed in the switching pole housing (2) thereof, the switching unit comprising a fixed and movable contact, wherein an input connector (4) on the fixed contact side is connected to an output connector (10) on the movable contact side in an electrically conductive manner in the switched-on position of the switching unit (5). In order to be able to simultaneously connect a current (12) and a voltage sensor (16, 16') to one of the connectors while maintaining breakdown safety, the invention provides an arrangement of the current (12) and voltage sensors (16, 16') at a circumferential distance from each other on the circumferential wall (3) of the switching pole housing (2), which prevents partial discharges.

Description

Beschreibungdescription
Schaltpol für ein HochspannungsnetzSwitching pole for a high-voltage network
Die Erfindung bezieht sich auf einen Schaltpol für ein Hochspannungsnetz der im Oberbegriff von Patentanspruch 1 angegebenen Art .The invention relates to a switching pole for a high-voltage network specified in the preamble of claim 1. Art.
Ein derartiger Schaltpol ist z.B. in der US 5729888 bereits offenbart, wobei die Schalteinrichtung im Schaltpolgehäuse eine Vakuumschaltröhre ist. Diese Vakuumschaltröhre ist in einer oberen Hohlkammer des in montiertem Zustand stehend angeordneten Schaltpolgehäuses angebracht, wobei die Festkon¬ taktseite oben und die Bewegkontaktseite unten liegt. Auf der Festkontaktseite ist der Festkontakt der Vakuumschaltröhre leitend mit einem Eingangsanschlussstück verbunden, das koaxial zur Mittellängsachse des Schaltpolgehäuses verläuft und mit einem zum Leitungsanschluss dienenden Gewindestück aus dem oberen Ende des Gehäuses heraussteht. Am unteren Ende ragt aus der Vakuumschaltröhre ein Führungsrohr heraus, das mit dem beweglichen Kontakt der Schaltröhre gekoppelt ist und eine Mittelöffnung in einem topfförmigen Sammelring eines seitlich aus dem Gehäuse herausstehenden Abgangsanschluss¬ stücks durchsetzt. Der Bewegkontakt ist unter axialer Koppe- lung mit einer isolierten Schaltstange verbunden, die im oberen Endbereich ständig leitend mit dem Abgangsanschlussstück verbunden ist. Zum Ein- bzw. Ausschalten der Schaltröhre lässt sich die Schaltstange z.B. durch einen Nockenmechanismus nach oben bzw. unten verstellen, wobei die Kon- takte der Vakuumschaltröhre aufeinandergedrückt bzw. ausein¬ anderbewegt werden. Zur laufenden Überwachung des Schaltzu- standes bzw. des Betriebs sind am Schaltpolgehäuse ein Strom¬ sensor und ein Spannungssensor angeordnet. Der ringförmige Stromsensor umschließt das Eingangsanschlussstück und ist so- mit im oberen Endbereich des Schaltpolgehäuses angeordnet. Demgegenüber ist der stabförmige Spannungssensor unterhalb des seitlich im Mittelbereich des Schaltpolgehäuses ange¬ ordneten Abgangsanschlussstücks in die Rohrwand integriert, welche den unteren Längenbereich der Hohlkammer an ihrem Umfang begrenzt.Such a switching pole is already disclosed, for example, in US Pat. No. 5,729,888, wherein the switching device in the switching pole housing is a vacuum interrupter. This vacuum interrupter is mounted in an upper chamber of the hollow arranged upright in the assembled state switching pole, wherein the Festkon ¬ clock side up and the Bewegkontaktseite located below. On the fixed contact side of the fixed contact of the vacuum interrupter is conductively connected to an input terminal which is coaxial with the central longitudinal axis of the Schaltpolgehäuses and protrudes with a serving for line connection threaded piece from the upper end of the housing. At the lower end protrudes from the vacuum interrupter, a guide tube which is coupled to the movable contact of the interrupter and passes through a central opening in a cup-shaped collecting ring of a side protruding from the housing outgoing ¬ tee. The moving contact is connected under axial coupling to an insulated switching rod, which is permanently connected to the outgoing fitting in the upper end region. For switching on or off of the switch tube, the switch rod can be, for example, by a cam mechanism to adjust up or down, wherein the con- tacts the vacuum interrupter pressed against each other or be Offn ¬ other moves. For the continuous monitoring of the switching state or operation, a current ¬ sensor and a voltage sensor are arranged on the switching pole. The annular current sensor surrounds the input terminal and is thus arranged in the upper end of the Schaltpolgehäuses. In contrast, the rod-shaped voltage sensor below the laterally in the central region of the Schaltpolgehäuses ange ¬ arranged outlet fitting is integrated into the pipe wall, which limits the lower length of the hollow chamber at its periphery.
Der Erfindung liegt daher die Aufgabe zugrunde, einen Schalt¬ pol der im Oberbegriff von Patentanspruch 1 angegebenen Art mit einer hohen Durchschlagsicherheit bei einer kombinierten Anordnung von Strom- und Spannungssensor anzugeben.The invention is therefore based on the object to provide a switching pole ¬ specified in the preamble of claim 1 type with a high breakdown safety in a combined arrangement of current and voltage sensor.
Die Lösung dieser Aufgabe ergibt sich aus den Merkmalen von Patentanspruch 1.The solution of this problem arises from the features of claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Ansprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Der Schaltpol für ein Hochspannungsnetz umfasst ein Schalt- polgehäuse aus festem Isolierstoff, in dem eine Schaltein¬ richtung mit Fest- und Bewegkontakt angeordnet ist, deren Be¬ wegkontakt über den richtungsumkehrbaren Vorschub einer Schaltstange zwischen der ein- und der ausgeschalteten Stellung bewegbar ist, wobei in der Einschaltstellung mittels der Schalteinrichtung ein Eingangsanschlussstück auf der Festkontaktseite elektrisch leitend mit einem Abgangsanschlussstück auf der Bewegkontaktseite verbunden ist. Der Schaltpol um¬ fasst darüber hinaus eine Sensoranordnung, die einen Strom- und einen Spannungssensor aufweist. Erfindungsgemäß sind der Stromsensor und der Spannungssensor an der Umfangswand desThe switching pole for a high-voltage network comprises a switching pole housing made of solid insulating material, in which a Schaltein ¬ direction is arranged with fixed and moving contact whose Be ¬ wegkontakt on the direction reversible feed a shift rod between the on and the off position is movable, wherein in the closed position by means of the switching device, an input connection piece on the fixed contact side is electrically conductively connected to a outgoing connection piece on the moving contact side. The switching pole ¬ also includes a sensor array having a current and a voltage sensor. According to the current sensor and the voltage sensor on the peripheral wall of the
Schaltpolgehäuses an einem zugeordneten Anschlussstück angeschlossen, wobei der Stromsensor in einem Teilentladungen verhindernden Umfangsabstand zum Spannungssensor an der Umfangswand des Schaltpolgehäuses angeordnet ist. Durch die gemeinsame Anordnung von Strom- und Spannungssensor an einem der Anschlussstücke, insbesondere am Abgangsan¬ schlussstück, kann bei ausgeschalteter Vakuumschaltröhre z. B. ein Kurzschluss im an das Abgangsanschlussstück angeschlossenen Netzbereich festgestellt werden. Dabei liegen das Hochspannungspotential des Spannungssensors und das Erdpoten¬ tial des Stromsensors insbesondere durch den zwischen den Sensoren vorgesehenen Umfangsabstand räumlich derart ausein- ander, das inhomogene Feldverläufe und örtliche Überschrei¬ tungen der Durchschlagfeldstärke des Isoliermaterials und so¬ mit Teilentladungen sicher vermieden sind. Mit anderen Worten: Die gleichzeitig an eines der Anschlussstücke des Schaltpols angeschlossenen Strom- und Spannungssensoren sind derart zueinander beabstandet und an die Umfangswand angeord¬ net, dass eine hohe Durchschlagsicherheit der Isolierung si¬ chergestellt ist.Schaltpolgehäuses connected to an associated connector, wherein the current sensor is arranged in a partial discharge preventing circumferential distance to the voltage sensor on the peripheral wall of the Schaltpolgehäuses. Due to the common arrangement of current and voltage sensor on one of the fittings, in particular the Abgangsan ¬ final piece, can be switched off when the vacuum interrupter z. B. a short circuit in the connected to the outgoing connector network area are detected. In this case, the high-voltage potential of the voltage sensor and the Erdpoten ¬ tial of the current sensor spatially in particular in such a way apart by the provided between the sensors circumferential distance, the inhomogeneous field courses and local overrides ¬ tion of the breakdown field strength of the insulating material and so ¬ are reliably avoided with partial discharges. In other words, at the same time connected to one of the terminals of the switching pole current and voltage sensors are spaced to each other and to the peripheral wall angeord ¬ net that has a high breakdown safety of insulation is si ¬ chergestellt.
Der dem Anschlussstück zusätzlich zugeordnete Spannungssensor oder Stromsensor kann ggf. der vom anderen Anschlussstück verlegte Spannungssensor bzw. Stromsensor sein. Alternativ kann aber auch beiden Anschlussstücken ein Spannungssensor oder ein Stromsensor zugeordnet werden, falls die Strommes¬ sung weiterhin auch am anderen Anschlussstück erfolgen soll.The voltage sensor or current sensor additionally assigned to the connection piece may optionally be the voltage sensor or current sensor installed by the other connection piece. Alternatively, however, a voltage sensor or a current sensor can also be assigned to both connecting pieces if the current measurement should continue to take place on the other connecting piece as well.
Durch die erfindungsgemäße Anordnung der Sensoren wird erreicht, dass die an einem gemeinsamen Anschlussstück anliegenden Potentiale von Spannungs- und Stromsensor räumlich besser ausgesteuert bzw. abgesteuert werden. Wegen des Ver- satzes in Umfangsrichtung des Schaltpolgehäuses ergibt sich neben der räumlichen Entzerrung der Sensoren unweigerlich auch eine feldtechnische Optimierung des dem Anschlussstück zugeordneten Sensorpaars. Wenn der Schaltpol nur mit einem Spannungs- und einem Stromsensor versehen ist, lassen sich diese Sensoren vorzugsweise um 180 Grad oder in einem anderen vorgebbaren Winkel versetzt am Umfang des Schaltpolgehäuses anordnen, was im Hinblick auf die Vermeidung von Teilentladungen besonders sicher ist.As a result of the arrangement of the sensors according to the invention, it is achieved that the potentials of the voltage and current sensors applied to a common connection piece are spatially better controlled or deactivated. Because of the offset in the circumferential direction of the switch-pole housing, apart from the spatial equalization of the sensors, a field-technical optimization of the sensor pair associated with the connection piece inevitably results. If the switching pole is provided with only one voltage and one current sensor, these sensors can preferably be arranged at 180 degrees or at a different predeterminable angle on the circumference of the switching pole housing, which is particularly safe in terms of avoiding partial discharges.
Falls dieser Umfangsversatz von 180 Grad nicht möglich ist, sollte der Stromsensor gegenüber dem Spannungssensor um einen Winkel von mindestens 90 Grad versetzt an der Umfangswand des Schaltpolgehäuses angeordnet sein. Hierdurch kann bei Schalt¬ polen unter in Hochspannungsnetzen üblichen Bedingungen noch eine TE-freie Anordnung (TE= Teilentladungen) des Sensorpaars erreicht werden. Dieser Umfangsversatz um einen Winkel von 90 Grad lässt sich selbst dann noch einhalten, wenn der Schalt- pol an seiner Umfangswand neben dem Stromsensor noch zweiIf this circumferential offset of 180 degrees is not possible, the current sensor should be arranged offset relative to the voltage sensor by an angle of at least 90 degrees on the peripheral wall of the Schaltpolgehäuses. In this way, even a TE-free arrangement (TE = partial discharges) of the sensor pair may be achieved with switching poles ¬ under customary in high-voltage networks conditions. This circumferential offset by an angle of 90 degrees can be maintained even if the switching pole on its peripheral wall next to the current sensor two more
Spannungssensoren aufweist, die diametrisch angeordnet sind.Has voltage sensors which are arranged diametrically.
Aufgrund ihrer länglichen Form lässt sich der Spannungssensor oder lassen sich die beiden Spannungssensoren z.B. durch Ein- betten bzw. Eingießen jeweils in einen zugeordneten Bereich der Umfangswand des Schaltpols integrieren. Vorteilhaft wer¬ den die Spannungssensoren dabei so angebracht, dass die kon¬ struktiv festgelegte Isolationswanddicke des Schaltpolgehäu¬ ses auch zwischen Sensor und Hohlraum gegeben ist.Due to their elongated shape, the voltage sensor or the two voltage sensors can be integrated, for example, by embedding or pouring, in each case into an assigned region of the circumferential wall of the switching pole. Advantageously ¬ which the voltage sensors thereby attached so that the kon ¬ structurally fixed insulation wall thickness of the Schaltpolgehäu ¬ ses is also placed between the sensor and the cavity.
Um dies bei möglichst geringer und gleichmäßiger Wanddicke des Schaltpolgehäuses zu ermöglichen, sind die Spannungssen¬ soren jeweils in einen Gehäusesteg integriert, der tunnel¬ artig erhaben entlang dem Außenumfang des Gehäuses verläuft. Vorzugsweise ist die Länge des Gehäusestegs dabei so bemes¬ sen, dass auch die angeschlossene Sensorleitung mit einem Längenabschnitt in den Gehäusesteg integriert sein kann. Wenn das Anschlussstück mit dem Sensorenpaar radial vom Schaltpol absteht, lässt sich der Stromsensor vorzugsweise in einem Abstand zur Umfangswand des Schaltpols in ein das An¬ schlussstück isolierendes Abzweigrohr des Schaltpolgehäuses integrieren. Die zugehörige Sensorleitung des Stromsensors kann dabei vorteilhaft in einen weiteren erhabenen Gehäusesteg integriert sein, der vom Abzweigrohr zum Fuß des Schalt¬ pols verläuft.To enable this with the smallest possible and uniform wall thickness of the Schaltpolgehäuses, the Spannungssen ¬ sensors are each integrated into a housing web, the tunnel ¬ like extends along the outer circumference of the housing. Preferably, the length of the housing while the web so bemes ¬ sen that the connected sensor line may be integrated with a longitudinal section in the housing web. If the fitting with the pair of sensors projects radially from the switching pole, the current sensor is preferably at a distance to the circumferential wall of the switching pole in a ¬ the on-circuit piece insulating branch pipe of the switching pole integrate. The associated sensor line of the current sensor can be advantageously integrated into a further raised housing web, which runs from the branch pipe to the foot of the switching ¬ pole.
In zum Gehäusesteg ähnlicher Weise kann auch die Sensorlei¬ tung des Spannungssensors in einem durch den Versatz zum Stromsensor bedingten Umfangsabschnitt in einen Ringwulst des Schaltpolgehäuses integriert sein, der sich unter etwa vier¬ telkreisförmiger Krümmung zwischen dem Gehäusesteg des Span- nungssensors und dem Abzweigrohr erstreckt.In the housing web similar manner, the Sensorlei ¬ tion of the voltage sensor in a conditional by the offset to the current sensor peripheral portion may be integrated into a torus of the Schaltpolgehäuses extending under approximately four ¬ circular curvature between the housing web of the voltage sensor and the branch pipe.
Vorzugsweise ist der Spannungssensor über eine etwa recht¬ winklig abgebogene Sensorleitung an das Hochspannungs¬ potential der Bewegkontaktseite angeschlossen. Die Sensor- leitung kann dabei aus einer Litze bestehen, die in einem unter einem Winkel von 90 Grad abgebogene Schutzrohr geführt ist. Alternativ kann die Sensorleitung des Spannungssensors aus einem entsprechend abgebogenen Drahtleiter bzw. Drahtbügel bestehen.Preferably, the voltage sensor is connected via an approximately right-angled bent ¬ sensor line to the high-voltage potential of the ¬ Bewegkontaktseite. The sensor line can consist of a strand which is guided in a bent at an angle of 90 degrees protective tube. Alternatively, the sensor line of the voltage sensor may consist of a correspondingly bent wire conductor or wire bracket.
Eine möglichst gleichmäßige Wanddicke des Schaltpolgehäuses mit erhabener Einbettung von Sensoren und ggf. Sensorleitungen wirkt sich vorteilhaft auf den Materialverbrauch bei der Herstellung des Gehäuses aus. Zudem kann die Wärmeabfuhr bei starker Wärmebelastung des Schaltpols problemloser erfolgen .The most uniform possible wall thickness of the Schaltpolgehäuses with raised embedding of sensors and possibly sensor lines has an advantageous effect on the material consumption in the manufacture of the housing. In addition, the heat dissipation can be done without problems with strong heat load of Schaltpols.
Weitere zweckmäßige Ausgestaltungen und Vorteile der Erfin¬ dung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels unter Bezug auf die Figuren der Zeich¬ nungen, wobei einander entsprechende Bauteile mit gleichen Bezugszeichen versehen sind.Further expedient refinements and advantages of the inven ¬ tion will become apparent from the following description of a Embodiment with reference to the figures of drawing ¬ calculations, each corresponding components are provided with the same reference numerals.
In den Zeichnungen zeigen:In the drawings show:
Fig. 1 einen Mittellängsschnitt durch einen Schaltpol, der mit einer Sensoranordnung versehen ist,1 shows a central longitudinal section through a switching pole, which is provided with a sensor arrangement,
Fig. 2 einen Mittellängsschnitt durch den Schaltpol mit einem gegenüber dem von Fig. 1 um 90 Grad gedrehten Schnittverlauf,2 shows a central longitudinal section through the switching pole with a relation to that of FIG. 1 rotated by 90 degrees cutting profile,
Fig. 3 eine perspektivische Schrägansicht von außen auf den Schaltpol,3 is a perspective oblique view from the outside on the switching pole,
Fig. 4 eine perspektivische Frontalansicht auf die Abgangsan¬ schlussseite des Schaltpols und4 is a perspective front view of the Abgangsan ¬ final side of the Schaltpols and
Fig. 5 einen Horizontalschnitt durch den Schaltpol auf Höhe seines seitlichen Abgangsanschlussstücks.Fig. 5 is a horizontal section through the switching pole at the level of its side outlet connection piece.
Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen.Corresponding parts are provided in all figures with the same reference numerals.
In Figur 1 ist ein stehend angeordneter Schaltpol 1 im Schnitt gezeigt, der als Schaltstelle in einem üblichen Hoch¬ spannungsnetz dienen soll. Der Schaltpol 1 weist ein Hochspannung abschirmendes Schaltpolgehäuse 2 auf, das aus festem Isolierstoff besteht und z.B. aus Kunstharz gegossen ist.In Figure 1, a standing arranged switching pole 1 is shown in section, which is to serve as a switching point in a conventional high voltage network ¬ . The switching pole 1 has a high-voltage shielding switching pole housing 2, which consists of solid insulating material and is cast, for example, of synthetic resin.
Dieses Schaltpolgehäuse 2 ist insgesamt rohrförmig ausgebil¬ det, wobei der Hohlquerschnitt der als Rohrwand ausgebildeten Umfangswand 3 von oben nach unten mehrstufig vergrößert ist. So umschließt die Umfangswand 3 im am stärksten verjüngten oberen Bereich formschlüssig ein Eingangsanschlussstück 4, das mit einem Gewindezapfen aus dem Schaltpolgehäuse 2 he¬ raussteht. An dieses Anschlussstück 4 lässt sich die einspei¬ sende Stromleitung anschließen.This Schaltpolgehäuse 2 is a total of tubular ausgebil ¬ det, wherein the hollow cross-section of the peripheral wall formed as a pipe wall 3 is increased in several stages from top to bottom. Thus enclosing the peripheral wall 3 in the most tapered upper area form fit an input terminal 4, which stands out with a threaded pin from the Schaltpolgehäuse 2 he ¬ . At this connection piece 4, the einspei ¬ sende power line can be connected.
Daran anschließend ist der Hohlquerschnitt der Umfangswand 3 zu einer zylindrischen Hohlkammer erweitert, die sich etwa bis zur Höhenmitte der Umfangswand 3 erstreckt. In diese Hohlkammer ist mittels einer geeigneten Vergussmasse eine Va- kuumschaltröhre 5 unbeweglich angebracht, die koaxial zur Mittellängsachse 6 angeordnet ist. Die Vakuumschaltröhre 5 umfasst in üblicher Weise einen Fest- und einen Bewegkontakt, deren Kontaktflächen nicht eingezeichnet unter Vakuum in der Schaltkammer der Schaltröhre 5 angeordnet sind. Der unbeweg- liehe Festkontakt ist dabei ständig, z. B. über eine feste Stange, leitend mit dem Eingangsanschlussstück 4 verbunden. Demgegenüber ist der Bewegkontakt mit einer Bewegkontakt¬ stange 7 verbunden, welche durch ein Führungsrohr mittig aus der unteren Stirnseite der Vakuumschaltröhre 5 heraussteht. Die Durchführung der Bewegkontaktstange ist dabei z.B. mit¬ tels eines geeigneten Faltenbalges hermetisch abgedichtet.Subsequently, the hollow cross section of the peripheral wall 3 is expanded to a cylindrical hollow chamber which extends approximately to the middle of the height of the peripheral wall 3. In this hollow chamber, a vacuum interrupter 5 is immovably mounted by means of a suitable potting compound, which is arranged coaxially to the central longitudinal axis 6. The vacuum interrupter 5 comprises in a conventional manner a fixed and a moving contact whose contact surfaces are not shown under vacuum in the switching chamber of the interrupter 5 are arranged. The immovable Festfest contact is constantly, z. B. via a fixed rod, conductively connected to the input terminal 4. In contrast, the moving contact with a moving contact ¬ rod 7 is connected, which protrudes centrally through a guide tube from the lower end face of the vacuum interrupter 5. The implementation of the Bewegkontaktstange is hermetically sealed, for example with ¬ means of a suitable bellows.
Im darunter liegenden Abschnitt vergrößert sich der von der Umfangswand 3 umschlossene Hohlquerschnitt des Schaltpolge- häuses 2 etwa kegelstumpfförmig. Im Wesentlichen entlang der Mittellängsachse 6 des Schaltpolgehäuses 2 ragt in den kegel¬ förmigen Hohlquerschnitt eine Schaltstange 8 hinein, deren unteres Ende im Einbauzustand an einem nicht gezeigten Hubme¬ chanismus angelenkt ist. In einem mittleren Längenbereich be- steht die Schaltstange 8 aus einem Isolatorwerkstoff, während sie im oberen Endbereich aus leitfähigem Material besteht. Dabei ist das obere Ende der Schaltstange 8 unter axialer Ab¬ stützung mit dem Ende der Bewegkontaktstange 7 gekoppelt, so dass die Bewegkontaktstange 7 gemeinsam mit dem oberen Ende der Schaltstange 8 bewegt wird. Die Koppelung muss hierbei oberhalb eines Druckstückes 9 erfolgen, das einen teles¬ kopartig längenveränderbaren Abschnitt der Schaltstange mit¬ tels einer Schraubendruckfeder überbrückt, die axial zwischen zwei Ringtellern der Schaltstange abgestützt ist. Hierdurch kann die Schaltstange 8 mit einem Überhub versehen werden, durch den die Kontakte im Einschaltzustand mit einer defi¬ nierten Kraft aufeinandergedrückt werden, die aus der Feder¬ kraft der zusammengedrückten Schraubendruckfeder resultiert. Hierdurch ergeben sich Vorteile im Hinblick auf die Kurzschlussfestigkeit der Vakuumschaltröhre 5.In the section below, the hollow cross-section of the switching pole housing 2 enclosed by the peripheral wall 3 increases approximately frustoconically. In essence, along the central longitudinal axis 6 of the Schaltpolgehäuses 2 protrudes into the conical ¬ shaped hollow cross section, a shift rod 8, whose lower end is hinged in the installed state to a Hubme ¬ mechanism, not shown. In a middle length range, the shift rod 8 consists of an insulator material, while in the upper end region it consists of conductive material. In this case, the upper end of the shift rod 8 is coupled under axial support from ¬ with the end of Bewegkontaktstange 7, so that the Bewegkontaktstange 7 together with the upper end the shift rod 8 is moved. The coupling must in this case take place above a pressure piece 9, which bridges a teles ¬ like length-variable section of the shift rod with ¬ means of a helical compression spring which is axially supported between two Ringtellern the shift rod. In this way, the shift rod 8 can be provided with an overstroke, through which the contacts are pressed together in the on state with a defi ¬ ned force resulting from the spring ¬ force of the compressed helical compression spring. This results in advantages with regard to the short-circuit resistance of the vacuum interrupter 5.
Um bei eingeschalteter Vakuumschaltröhre 5 einen Stromfluss zu ermöglichen, ist der leitende Endbereich der Schaltstange 8 z. B. über ein flexibles Leiterband, einen Schleifkontakt oder ähnliches ständig leitend mit einem Abgangsanschluss¬ stück 10 verbunden, das die Umfangswand 3 im Mittelbereich durchsetzt und seitlich von dieser absteht. Zur Isolierung des Abgangsanschlussstücks 10 ist ein Abzweigrohr 11 vor- gesehen, das vorteilhaft einteilig mit der Umfangswand 3 aus¬ gebildet sein kann. In das Abzweigrohr 11 ist in einem seitlichen Abstand zur Umfangswand 3 ein ringförmiger Stromsensor 12 eingebettet, mit dem sich der Stromfluss im Abgangs¬ anschlussteil 10 auf übliche Weise induktiv erfassen lässt. Die zugeordnete Sensorleitung 13 des Stromsensors 12 ist da¬ bei in einen Gehäusesteg 14 eingegossen, der senkrecht zwischen der Mitte des Abzweigrohrs 11 und dem Fuß des Schalt¬ polgehäuses 2 verläuft. Hierdurch wird auch eine winkelstei¬ fere Anbindung des radial abragenden Abzweigrohrs 11 er- reicht. Zur Erhöhung der Knicksteifigkeit des tunnelartigen Gehäusestegs 14 selbst, können eine oder mehrere in Umfangs- richtung der Umfangswand 3 verlaufende Verstärkungsrippen 15 vorgesehen werden. Um zusätzlich eine messtechnische Erfassung der am Abgangs¬ anschlussteil 10 anliegenden Spannung zu ermöglichen, ist ein stabförmiger Spannungssensor 16 vorgesehen, der in der Draufsicht gesehen um einen Winkel von 90 Grad versetzt zum Strom- sensor 12 an der Umfangswand 3 angeordnet ist. Die versetzte Anordnung des Spannungssensors 16 sowie die Verlegung der zu¬ geordneten Sensorleitung sind in Fig. 1 wegen des Schnittverlaufes nur andeutungsweise eingezeichnet.In order to enable current flow when the vacuum interrupter 5 is switched on, the conductive end region of the shift rod 8 is z. B. via a flexible conductor strip, a sliding contact or the like constantly conductively connected to a leaving connection ¬ piece 10, which passes through the peripheral wall 3 in the central region and projects laterally from this. For the isolation of the outlet connector 10, a branch pipe 11 is seen upstream, which may be advantageously formed integrally with the peripheral wall 3 from ¬. In the branch pipe 11, an annular current sensor 12 is embedded in a lateral distance from the peripheral wall 3, with which the current flow in the outlet ¬ connecting part 10 can be detected inductively in the usual way. The associated sensor line 13 of the current sensor 12 is there ¬ cast in a housing bar 14 which extends perpendicularly between the center of the branch pipe 11 and the foot of the switching ¬ polgehäuses 2. This also a winkelstei ¬ fere connection of the radially protruding branch pipe 11 is ER- ranges. To increase the buckling resistance of the tunnel-like housing web 14 itself, one or more reinforcing ribs 15 extending in the circumferential direction of the peripheral wall 3 can be provided. In order to additionally enable a metrological detection of the voltage applied to the outlet ¬ connecting part 10, a rod-shaped voltage sensor 16 is provided, which is seen in plan view offset by an angle of 90 degrees to the current sensor 12 on the peripheral wall 3. The staggered arrangement of the voltage sensor 16 and the laying of the ¬ orderly sensor line are shown only schematically in Fig. 1 because of the cutting process.
In Verbindung mit Figur 2 ist die Anordnung des Spannungssensors 16 an der Umfangswand 3 deutlicher zu erkennen, da das Schaltpolgehäuse 2 in Fig. 2 gegenüber dem Schnittverlauf gemäß Fig. 1 bezogen auf die Mittellängsachse 6 um 90 Grad gedreht geschnitten ist. Hier ist sichtbar, dass der stab- förmige Spannungssensor 16 vollständig in einen von der Umfangswand 3 erhaben abstehenden Gehäusesteg 18 eingebettet bzw. eingegossen ist, der entsprechend dicker ist als der Durchmesser des Spannungssensors 16. Dabei verläuft der Span¬ nungssensor 16 parallel zur Mittellängsachse 6 des Schaltpol- gehäuses 2. Der Gehäusesteg 18 ist oberhalb des Spannungssen¬ sors 16 etwa bis zur Höhenmitte des Schaltpolgehäuses 2 ver¬ längert, so dass ein erster Längenabschnitt der Sensorleitung 17 in die Stegverlängerung eingebettet ist. Am oberen Ende dieses Abschnittes ist die Sensorleitung 17 zunächst um etwa 90 Grad abgebogen und verläuft danach unter Anpassung an die Umfangskrümmung der Umfangswand 3 in einem erhabenen Ringwulst 19, der sich vom oberen Ende des Steges 18 in einer Querebene bis zum Abzweigrohr 11 erstreckt, in das er hineingeführt und an das Abgangsanschlussstück 10 angeschlossen ist. Dieser abgewinkelte und abgebogene Verlauf der Sensor¬ leitung 17 entspricht somit dem Verlauf der erhabenen Außenkontur des Steges 18 sowie des daran anschließenden Ringwuls¬ tes 19 und ist in Verbindung mit der perspektivischen Ansicht gemäß Figur 3 sowie der Schnittdarstellung gemäß der Figur 5 gut zu erkennen. Wie dargestellt, ist es hierbei vorteilhaft, wenn der einen Sensorleitungsabschnitt aufnehmende Längenbe¬ reich des Gehäusesteges 14 sowie der sich daran anschließende Ringwulst 19 unter Anpassung an den Leitungsquerschnitt der Sensorleitung 17 verjüngt sind.In conjunction with Figure 2, the arrangement of the voltage sensor 16 on the peripheral wall 3 can be seen more clearly, since the switching pole housing 2 is cut in Fig. 2 relative to the section line of FIG. 1 relative to the central longitudinal axis 6 rotated by 90 degrees. Here it is visible that the rod-shaped voltage sensor 16 is completely embedded or cast in a raised from the peripheral wall 3 housing web 18, which is correspondingly thicker than the diameter of the voltage sensor 16. In this case, the clamping ¬ voltage sensor 16 is parallel to the central longitudinal axis. 6 the switching pole 2. the housing web 18 is above the Spannungssen ¬ sors 16 approximately up to the height of the middle of the switching pole 2 ver ¬ extended, so that a first longitudinal portion of the sensor cable is embedded in the fin extension 17th At the upper end of this section, the sensor line 17 is first bent by about 90 degrees and then passes to adapt to the circumferential curvature of the peripheral wall 3 in a raised annular bead 19 which extends from the upper end of the web 18 in a transverse plane to the branch pipe 11, in he led in and connected to the outlet fitting 10. This angled and bent course of the sensor ¬ line 17 thus corresponds to the course of the raised outer contour of the web 18 and the subsequent Ringwuls ¬ tes 19 and is in conjunction with the perspective view of Figure 3 and the sectional view of FIG clearly visible. As illustrated, there is in this case advantageous if the conduit portion accommodating a sensor Längenbe ¬ area of the housing rib 14 and the adjoining annular ring 19 are tapered and adaptation to the line cross section of the sensor conduit 17th
Dem Spannungssensor 16 diametrisch gegenüberliegend, also in Umfangsrichtung um 180 Grad versetzt, ist auf der Umfangswand 3 des Schaltpolgehäuses 2 auf gleicher Höhe ein zweiter, bau- gleicher Spannungssensor 16' angeordnet, der sich ebenfalls parallel zur Mittellängsachse 6 erstreckt und in einen zuge¬ ordneten Gehäusesteg 18' eingebettet ist. Dieser Spannungs¬ sensor 18' soll die Spannung des Eingangsanschlussstücks 4 erfassen, weshalb seine Sensorleitung 17' innerhalb des Schaltpolgehäuses 2 entlang der Umfangswand 3 nach oben ge¬ führt ist. Wie insbesondere in Verbindung mit Figur 4 zu se¬ hen ist, verläuft die erst im oberen Bereich etwa rechtwinklig abgebogene Sensorleitung 17' schräg zur Mittellängsachse 6 in einem entsprechend verlängerten Gehäusesteg 18, dessen Querschnitt über die Höhenerstreckung der Sensorleitung 17' entsprechend verjüngt ist. The voltage sensor 16 diametrically opposite, so offset in the circumferential direction by 180 degrees, a second, same construction same voltage sensor 16 'is disposed on the peripheral wall 3 of the Schaltpolgehäuses 2 at the same height, which also extends parallel to the central longitudinal axis 6 and in an assigned ¬ Housing web 18 'is embedded. This voltage ¬ sensor 18 'is to detect the voltage of the input connector 4, so its sensor line 17' within the switching pole 2 along the circumferential wall 3 upwards ge ¬ leads is. As shown in particular in connection with Figure 4 it can be se ¬ hen that approximately at right angles are bent only at the top of sensor pipe 17 'extends obliquely to the central longitudinal axis 6 in a corresponding elongated housing web 18, its cross-section over the height dimension of the sensor line 17' is tapered correspondingly.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Schaltpol1 switching pole
2 Schaltpolgehäuse 3 Umfangswand2 switching pole housing 3 peripheral wall
4 Eingangsanschlussstück4 input connection piece
5 Vakuumschaltröhre5 vacuum interrupter
6 Mittellängsachse6 center longitudinal axis
7 Bewegkontaktstange 8 Schaltstange7 moving contact rod 8 shift rod
9 Druckstück9 pressure piece
10 Abgangsanschlussstück10 outlet fitting
11 Abzweigrohr11 branch pipe
12 Stromsensor 13 Sensorleitung12 current sensor 13 sensor line
14 Gehäusesteg14 housing bridge
15 Verstärkungsrippe15 reinforcement rib
16 Spannungssensor 16' Spannungssensor 17 Sensorleitung16 Voltage sensor 16 'Voltage sensor 17 Sensor cable
17' Sensorleitung17 'sensor line
18 Gehäusesteg 18' Gehäusesteg18 Housing web 18 'Housing web
19 Ringwulst 19 ring bulge

Claims

Patentansprüche claims
1. Schaltpol (1) für ein Hochspannungsnetz mit einem Schaltpolgehäuse (2) aus festem Isolierstoff, in dem eine Schalt- einrichtung mit Fest- und Bewegkontakt angeordnet ist, deren Bewegkontakt über den richtungsumkehrbaren Vorschub einer Schaltstange zwischen der ein- und der ausgeschalteten Stellung bewegbar ist, wobei in der Einschaltstellung mittels der Schalteinrichtung ein Eingangsanschlussstück (4) auf der Festkontaktseite elektrisch leitend mit einem Abgangsan¬ schlussstück (10) auf der Bewegkontaktseite verbunden ist, und mit einer Sensoranordnung, die einen Strom- und einen Spannungssensor (12, 16) umfasst, d a d u r c h g e k e n n z e i c h n e t, dass der Stromsensor (12) und der Spannungssensor (16) an der Um- fangswand (3) des Schaltpolgehäuses (2) an einem zugeordneten Anschlussstück (10) angeschlossen sind, wobei der Stromsensor (12) in einem Teilentladungen verhindernden Umfangsab- stand zum Spannungssensor (16) an der Umfangswand (3) des Schaltpolgehäuses (2) angeordnet ist.1. switching pole (1) for a high-voltage network with a Schaltpolgehäuse (2) made of solid insulating material, in which a switching device is arranged with fixed and moving contact whose moving contact on the direction reversible feed a shift rod between the on and the off position movable is, wherein in the closed position by means of the switching means an input terminal (4) on the fixed contact side is electrically connected to a Abgangsan ¬ circuit piece (10) on the Bewegkontaktseite, and with a sensor arrangement comprising a current and a voltage sensor (12, 16) characterized in that the current sensor (12) and the voltage sensor (16) on the peripheral wall (3) of the Schaltpolgehäuses (2) are connected to an associated connector (10), wherein the current sensor (12) in a partial discharge preventing circumference - Was to the voltage sensor (16) on the peripheral wall (3) of the Schaltpolgehäuses (2) is arranged.
2. Schaltpol nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, dass der Stromsensor (12) gegenüber dem Spannungssensor (16, 16') um einen vorgebbaren Winkel, insbesondere einen Winkel von mindestens 90 Grad versetzt an der Umfangswand (3) des Schaltpolgehäuses (2) angeordnet ist.2. switching pole according to claim 1, characterized in that the current sensor (12) relative to the voltage sensor (16, 16 ') offset by a predetermined angle, in particular an angle of at least 90 degrees on the peripheral wall (3) of the Schaltpolgehäuses (2) ,
3. Schaltpol nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, dass die Sensoranordnung zwei Spannungssensoren (16, 16') umfasst, die um einen vorgebbaren Winkel, insbesondere einen Winkel von 180 Grad gegeneinander versetzt an der Umfangswand (3) des Schaltpolgehäuses (2) angeordnet sind. 3. switching pole according to claim 1, characterized in that the sensor arrangement comprises two voltage sensors (16, 16 ') which are offset by a predetermined angle, in particular an angle of 180 degrees to each other on the peripheral wall (3) of the Schaltpolgehäuses (2).
4. Schaltpol nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, dass jeder Spannungssensor (16, 16') der Sensoranordnung unter Aufrechterhaltung der konstruktiv festgelegten Wanddicke der Umfangswand (3) in den zugehörigen Wandbereich des Schaltpol¬ gehäuses (2) integriert ist.4. switching pole according to claim 1, characterized in that each voltage sensor (16, 16 ') of the sensor assembly while maintaining the constructive wall thickness of the peripheral wall (3) in the associated wall portion of the Schaltpol ¬ housing (2) is integrated.
5. Schaltpol nach Anspruch 4, d a d u r c h g e k e n n z e i c h n e t, dass der Spannungssensor (16, 16') in einen erhabenen Gehäusesteg (18, 18') der Umfangswand (3) integriert ist.5. Switching pole according to claim 4, characterized in that the voltage sensor (16, 16 ') in a raised housing web (18, 18') of the peripheral wall (3) is integrated.
6. Schaltpol nach Anspruch 5, d a d u r c h g e k e n n z e i c h n e t, dass der Gehäusesteg (18, 18') den zugehörigen Spannungssensor (16, 16') sowie einen daran anschließenden Längenabschnitt einer Sensorleitung (17, 17') aufnimmt.6. Switching pole according to claim 5, characterized in that the housing web (18, 18 ') accommodates the associated voltage sensor (16, 16') and an adjoining longitudinal section of a sensor line (17, 17 ').
7. Schaltpol nach einem der Ansprüche 1 bis 6, d a d u r c h g e k e n n z e i c h n e t, dass der Stromsensor (12) in ein das zugeordnete Anschlussstück (10) isolierend umschließendes Abzweigrohr (11) des Schalt¬ polgehäuses (2) integriert ist, das unter radialer Erstre- ckung von der Umfangswand (3) des Schaltpolgehäuses (2) ab¬ ragt .7. switching pole according to one of claims 1 to 6, characterized in that the current sensor (12) in an associated connector (10) insulating enclosing branch pipe (11) of the switching ¬ polgehäuses (2) is integrated, the under radial Erstre- ckung of the peripheral wall (3) of the Schaltpolgehäuses (2) protrudes from ¬ .
8. Schaltpol nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t, dass zwischen Abzweigrohr (11) und dem Fuß des Schaltpolgehäuses (1 ) eine Sensorleitung (13) des Stromsensors (12) in einen erhabenen Gehäusesteg (14) integriert ist. 8. switching pole according to claim 7, characterized in that between the branch pipe (11) and the foot of the Schaltpolgehäuses (1) a sensor line (13) of the current sensor (12) in a raised housing web (14) is integrated.
9. Schaltpol nach den Ansprüchen 6 und 7, d a d u r c h g e k e n n z e i c h n e t, dass die Sensorleitung (17) des Spannungssensors (16) in einem versatzbedingten Umfangsabschnitt zwischen Gehäusesteg (18) und Abzweigrohr (11) in einen Ringwulst (19) des Schaltpolge¬ häuses (2) integriert ist.9. switching pole according to claims 6 and 7, characterized in that the sensor line (17) of the voltage sensor (16) in an offset-related peripheral portion between the housing web (18) and branch pipe (11) in an annular bead (19) of the Schaltpolge ¬ housing (2) is integrated.
10. Schaltpol nach Anspruch 9, d a d u r c h g e k e n n z e i c h n e t, dass der Spannungssensor (16) über eine etwa rechtwinklig abgebogene und anschließend gekrümmte Sensorleitung (17) an das Ab¬ gangsanschlussstück (10) angeschlossen ist. 10. switching pole according to claim 9, characterized in that the voltage sensor (16) via an approximately bent at right angles and then curved sensor line (17) to the Ab ¬ gangsanschlussstück (10) is connected.
EP08760151.4A 2007-06-15 2008-05-28 Switching pole for a high-voltage network Active EP2156454B1 (en)

Applications Claiming Priority (2)

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DE102007028205A DE102007028205A1 (en) 2007-06-15 2007-06-15 Switching pole for a high-voltage network
PCT/EP2008/056556 WO2008151937A1 (en) 2007-06-15 2008-05-28 Switching pole for a high-voltage network

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EP2156454B1 EP2156454B1 (en) 2015-08-12

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EP (1) EP2156454B1 (en)
CN (1) CN101772817B (en)
DE (1) DE102007028205A1 (en)
ES (1) ES2546285T3 (en)
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EP2156454B1 (en) 2015-08-12
ES2546285T3 (en) 2015-09-22
CN101772817B (en) 2013-08-07
DE102007028205A1 (en) 2008-12-24
MX2009013441A (en) 2010-04-21
US20100170774A1 (en) 2010-07-08
WO2008151937A1 (en) 2008-12-18
CN101772817A (en) 2010-07-07
PT2156454E (en) 2015-10-12

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