EP0298069A2 - Position indicator for high voltage circuit breaker - Google Patents

Position indicator for high voltage circuit breaker Download PDF

Info

Publication number
EP0298069A2
EP0298069A2 EP88890084A EP88890084A EP0298069A2 EP 0298069 A2 EP0298069 A2 EP 0298069A2 EP 88890084 A EP88890084 A EP 88890084A EP 88890084 A EP88890084 A EP 88890084A EP 0298069 A2 EP0298069 A2 EP 0298069A2
Authority
EP
European Patent Office
Prior art keywords
contact
evaluation unit
light guide
position indicator
switch position
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
EP88890084A
Other languages
German (de)
French (fr)
Other versions
EP0298069A3 (en
EP0298069B1 (en
Inventor
Erwin Raffeiner
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.)
Alstom Austria Ag gec Alsthom AG
Original Assignee
Sprecher Energie Osterreich GmbH
GEC Alsthom T&D GmbH Austria
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
Application filed by Sprecher Energie Osterreich GmbH, GEC Alsthom T&D GmbH Austria filed Critical Sprecher Energie Osterreich GmbH
Publication of EP0298069A2 publication Critical patent/EP0298069A2/en
Publication of EP0298069A3 publication Critical patent/EP0298069A3/en
Application granted granted Critical
Publication of EP0298069B1 publication Critical patent/EP0298069B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/168—Indicators for switching condition, e.g. "on" or "off" making use of an electromagnetic wave communication

Definitions

  • the invention relates to a switch position detector for high-voltage switchgear with a fixed contact that can be brought into and out of engagement with a movable contact, in particular for isolating switches and earthing switches with a fixed contact arranged on a plastic insulator, the switch position being monitored by light conductors connected to an evaluation unit.
  • Switch position detectors are therefore safety-critical elements in these high-voltage switching devices.
  • a prism attached to the movable contact of the high-voltage switch reflects the light sent by a rod into another, leading to the evaluation unit Rod.
  • the message is given by a switching magnet arranged on the fixed contact and a magnetic switch attached to the movable contact via insulating transformers.
  • switch position detectors are relatively complex and therefore uneconomical on the one hand, and on the other hand not applicable to some disconnectors and earthing switches.
  • the arrangement according to the invention shown below has the purpose of a switch position indicator for high-voltage switchgear which is universally applicable, has a high level of operational reliability, can be carried out economically and only gives the message when the movable contact has reached one of its end positions.
  • the light guide connected to the evaluation unit forms a light guide reflex light barrier, which delivers a safe switching position signal when the light exit point is covered by a contact and light is reflected back into the light guide.
  • one end of the light guide opens into an open bore of a contact, the opening of which can be closed by the other contact.
  • the reflection effect can be enhanced and the light exit point can be protected against contamination, although light guide reflex light barriers can be set so precisely that they are insensitive to contamination.
  • the light-reflecting part of the contact can also be up to 30 mm away from the light exit point.
  • the light guide can pass through the plastic insulator in the longitudinal direction and have a section designed as a plug connection.
  • the light guide can be embedded in the plastic insulator.
  • Plastic insulators are preferably made of epoxy resin using the known pressure gelling process.
  • the light guide can be inserted into the mold before casting the plastic insulator and then cast in.
  • the light guide is arranged in the shape so that the separating surface of its connector is aligned with the bottom surface of the plastic insulator.
  • the light guide has a high dielectric strength and is embedded in the plastic insulator, so that neither the insulation strength nor the leakage current resistance of the plastic insulator are impaired.
  • the light guide can also be guided through a hole in the plastic insulator and cast in it.
  • This type of design will be chosen, for example, to avoid damage to the light guide from high casting temperatures.
  • the light guide can be guided through a plastic tube embedded in the plastic insulator and cast in it.
  • a second light guide is preferably connected to the evaluation unit, the other end of which forms a light guide reflex light barrier with part of the movable contact.
  • the evaluation unit is therefore suitable for additionally processing signals for the switch-off position of the high-voltage switching device.
  • the evaluation unit is designed for at least one three-pole high-voltage switching device in order to be able to take over the switching position messages for the on and off switching positions of the three poles.
  • the evaluation unit preferably contains at least one microprocessor and optical transmit and receive diodes for converting the optical signals into electrical signals and interfaces.
  • the evaluation unit is thus not only suitable for processing the signals coming from the fiber optic reflection light barrier and for example the fiber optic cable to a control and monitoring unit, the position report, fault message etc. but also additional functions, e.g. Interlocks to take over.
  • electrical auxiliary switches or limit switches can also be connected to the evaluation unit, as a result of which the evaluation unit can process, for example, all messages from the electrical equipment of an encapsulated switch cell.
  • Optical fibers, surrounded by a size, are particularly suitable for casting or embedding in plastic insulators.
  • FIG. 1 shows the elevation of a high-voltage disconnector with switch position indicators for the on and off switch position
  • FIG. 2 shows the detail of an embodiment of the switch position signal on the high-voltage disconnector according to FIG. 1
  • FIG. 3 shows the detail 1
  • FIG. 4 shows a switching position message on a high voltage earthing switch for outdoor use
  • FIG. 5 shows the block diagram of an embodiment of the evaluation unit.
  • FIG. 1 shows the pole of an interior high-voltage disconnector 1, for example for an operating voltage of 36 kV, in the off position. It consists of two plastic insulators 2, 3 mounted on a frame 16 and a contact track which has a fixed contact 4 with a connecting lug, a contact knife 18 and a rotary contact 5 with a connecting lug.
  • the busbars 6, 7 are electrically conductively connected to the connecting lugs.
  • the movable contact which can be brought into and out of engagement with the fixed contact 4 by pivoting, is formed by the rotary contact 5 and the contact knife 18, which consists of two parallel knives which are connected to one another by spacer bolts and at the other end by the spring force a helical tension spring are pressed laterally on the rotary contact 5.
  • the switch-on position of the contact knife 18 is indicated by dashed lines.
  • the separating surface of the plug connections is aligned with the bottom surface of the plastic insulators 2, 3.
  • the light guides 8, 9 are led out of the frame 16 and via the conductor sections 12, 13 to an evaluation unit 17, which is encapsulated, for example, in the control part Control cell is connected.
  • the light guides 8, 9 are embedded in the plastic insulators 2, 3 and were cast in during the production of the plastic insulators 2, 3.
  • the free ends of the light guides 8, 9 open into open bores 14, 15 on the one hand of the fixed contact 4, on the other hand the rotary contact 5. These bores 14, 15 each run obliquely through the fixed contact 4 or rotation Contact 5 from a predetermined location of a side surface to the base, where they are aligned with the free ends of the light guides 8, 9.
  • a knife end of the contact knife 18 closes the open bore 15 on the rotary contact 5, in the switch-on position indicated by dashed lines, on the other hand, a free knife end of the contact knife 18 closes the open bore 14 on the fixed contact 4.
  • the resulting light signal of this light guide reflex light barrier is preferably processed in the evaluation unit 17 to form a digital switch position signal.
  • Fig. 3 shows another embodiment of the switching position message on the fixed contact 4 of the high-voltage disconnector 1, which is shown in side view on an enlarged scale.
  • the contact knife 18, drawn in section, is in engagement with the fixed contact 4.
  • the light guide 8 consists of an optical fiber with a diameter of about 1 mm and is passed through a plastic tube embedded in the plastic insulator 2 and potted in it.
  • the light exit point 20 of the end of the light guide 8, which protrudes somewhat from the plastic insulator 2, is covered by part of the contact knife 18, as a result of which a light guide reflex light barrier is formed, the light signal of which in turn is processed in the evaluation unit 17 to form a switch position signal.
  • the evaluation unit 17 is arranged in the drive box of the high-voltage earthing switch, which is fixedly mounted on an earthed post and consists of the frame 33, porcelain insulator 32, fixed contact 34 with connecting bolts 36 and switch blade 35.
  • the switch blade 35 in the switched-on position has a U-shaped cross section and is mounted on the frame 33 so that it can be pivoted by 90 °.
  • the switch-off position of the switch blade 35 is indicated by dashed lines.
  • the light guide 38 leads through the inside of the switch blade 35 in an arc into an open bore at the end of the switch blade, so that the light exit point points to the fixed contact 34 and forms a light guide reflex light barrier with a contact surface thereof. It is understood that the light guide 38 is attached to the switch blade 35 either by means of clamps or gluing. In this case, it is possible to dispense with a section of the light guide 38 designed as a plug connection for easier assembly.
  • the block diagram of an embodiment of the evaluation unit 17 is drawn.
  • the dot-dash line indicates the electromagnetically sealed housing in which the electronics of the evaluation unit 17 are accommodated.
  • the electronics can consist of optical transmit and receive diodes 21 for converting the optical signals into electrical signals and electronic logic circuits.
  • the evaluation unit 17 consists of the microprocessor 22 with supply unit 23, the optical transmit and receive diodes 21, which lead to the switch position messages for the switch-on positions E1, E2 and switch-off positions A1, A2 of two three-pole high-voltage isolating switches via optical fibers, and the optical ones Transmitting and receiving diodes 24, which are connected via bidirectional optical fibers to a central control and monitoring unit of the high-voltage switchgear.
  • an electrical auxiliary switch A3 for example a dividing car lock, is connected to the microprocessor 22 via an interface 25.
  • the electronic circuits of the evaluation unit 17 are protected against interference from the high-voltage switchgear by electromagnetic shielding and filter circuits.
  • Switching position detectors of the preceding version can be used universally, for example also in switching devices of compressed gas-insulated high-voltage switchgear, if the light guide is guided tightly through the pressure encapsulation and plastic insulators.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)

Abstract

A switch position indicator for high-voltage switchgear is proposed, having a fixed contact 4 (which can be engaged with and disengaged from a moving contact 5), particularly for isolating switches and earthing switches having a fixed contact 4 arranged on a plastic insulator 2, in which the switch position is monitored by an optical fibres 8...13 connected to an evaluation unit 17. From the evaluation unit 17 there passes to one of the two contacts 4, 5 only one optical fibre 8...13, whose end 19 can be covered by the other contact 18, and which consists of an optical fibre having a diameter of approximately 1 mm. The one end 19 can open into an open hole 14, 15 of a contact 4, 5, whose opening can be closed by the other contact 18. The optical fibre 8...13 is preferably passed in the longitudinal direction through the plastic insulator 2, 3 and is embedded therein. To simplify assembly of the plastic insulators 2, 3, the optical fibre 8...13 has a partial piece 10, 11, designed as a plug connection. To detect both switch positions of an isolating switch 1, a second optical fibre 9, 11, 13 is connected to the evaluation unit 17, the other end of this optical fibre forming an optical fibre reflex light barrier with a part of the contact 18. <IMAGE>

Description

Die Erfindung bezieht sich auf einen Schaltstellungsmelder für Hochspan­nungsschaltgeräte mit einem in und außer Eingriff mit einem beweglichen Kontakt bringbarem Festkontakt, insbesondere für Trennschalter und Erdungs­schalter mit einem auf einem Kunststoffisolator angeordneten Festkontakt, wobei die Schaltstellung durch an eine Auswerteeinheit angeschlossene Lichtleiter überwacht wird.The invention relates to a switch position detector for high-voltage switchgear with a fixed contact that can be brought into and out of engagement with a movable contact, in particular for isolating switches and earthing switches with a fixed contact arranged on a plastic insulator, the switch position being monitored by light conductors connected to an evaluation unit.

Trennschalter und Erdungsschalter haben bekanntlich Sicherheitsaufgaben zu erfüllen, nämlich einerseits zwischen spannungsfreigeschalteten Anlagentei­len und unter Spannung stehenden Anlagenteilen einen Sicherheitsabstand herzustellen, anderseits die spannungsfreigeschalteten Anlagenteile zu er­den.It is well known that isolating switches and earthing switches have to perform safety tasks, namely on the one hand to establish a safety distance between voltage-free system parts and live system parts, and on the other hand to earth the voltage-free system parts.

Erst wenn diese Aufgaben erfüllt und gesichert sind, können an den Anlagen­teilen gefahrlos Wartungs- oder Reparaturarbeiten vorgenommen werden. Schaltstellungsmelder sind bei diesen Hochspannungsschaltgeräten daher si­cherheitskritische Elemente.Only when these tasks have been completed and secured can maintenance or repair work be carried out safely on the system components. Switch position detectors are therefore safety-critical elements in these high-voltage switching devices.

Bei gebräuchlichen Schaltstellungsmeldern mit vom Antrieb betätigten Hilfs­schaltern besteht die Möglichkeit, daß beispielsweise bei einem Bruch im Antriebsgestänge die Meldung gegeben wird, obwohl der bewegliche Kontakt seine Endstellung nicht erreicht hat. Aus der EP-OS 88 155 ist ein Schalt­stellungsmelder für Hochspannungstrennschalter bekannt, bei dem die Meldung durch Ultraschallimpulse übertragen wird. Auch Ausführungen, die mit einem Lichtstrahl und Lichtleitern arbeiten sind beispielsweise aus der DE-AS 1 229 624 bekannt. Bei der Ausführung gemäß der DE-AS wird die Schaltstel­lung eines Hochspannungsschalters durch an eine Auswerteeinheit angeschlos­sene Lichtleiter überwacht, welche aus Stäben aus Glas oder glasähnlichem Kunststoff bestehen. Ein am beweglichen Kontakt des Hochspannungsschalters befestigtes Prisma reflektiert in den Endstellungen des Kontaktes das durch einen Stab gesendete Licht in einen anderen, zur Auswerteeinheit führenden Stab. Bei einem aus der AT-PS 378 861 bekannten Schaltstellungsmelder er­folgt die Meldung durch einen am Festkontakt angeordneten Schaltmagnet und einen am beweglichen Kontakt befestigten Magnetschalter über Isoliertrans­formatoren.In common switch position detectors with auxiliary switches actuated by the drive, there is the possibility that, for example, the message is given in the event of a break in the drive linkage, even though the movable contact has not reached its end position. From EP-OS 88 155 a switch position detector for high-voltage disconnectors is known, in which the message is transmitted by ultrasonic pulses. Designs that work with a light beam and light guides are also known, for example, from DE-AS 1 229 624. In the version according to DE-AS, the switching position of a high-voltage switch is monitored by light guides connected to an evaluation unit, which consist of rods made of glass or glass-like plastic. In the end positions of the contact, a prism attached to the movable contact of the high-voltage switch reflects the light sent by a rod into another, leading to the evaluation unit Rod. In a switch position indicator known from AT-PS 378 861, the message is given by a switching magnet arranged on the fixed contact and a magnetic switch attached to the movable contact via insulating transformers.

Solche Schaltstellungsmelder sind jedoch relativ aufwendig und dadurch ei­nerseits unwirtschaftlich, anderseits bei manchen Trenn- und Erdungsschal­tern nicht anwendbar.However, such switch position detectors are relatively complex and therefore uneconomical on the one hand, and on the other hand not applicable to some disconnectors and earthing switches.

Durch die in der Folge aufgezeigte erfindungsgemäße Anordnung wird ein Schaltstellungsmelder für Hochspannungsschaltgeräte bezweckt, der univer­sell anwendbar ist, eine hohe Betriebssicherheit aufweist, wirtschaftlich ausführbar ist und die Meldung erst gibt, wenn der bewegliche Kontakt eine seiner Endstellungen erreicht hat.The arrangement according to the invention shown below has the purpose of a switch position indicator for high-voltage switchgear which is universally applicable, has a high level of operational reliability, can be carried out economically and only gives the message when the movable contact has reached one of its end positions.

Dies wird dadurch erreicht, daß von der Auswerteeinheit zu einem der beiden Kontakte des Hochspannungsschaltgerätes nur ein aus einer Lichtleitfaser mit einem Durchmesser von etwa 1 mm bestehender Lichtleiter führt, dessen Ende durch den anderen Kontakt abdeckbar ist.This is achieved in that only one of the two contacts of the high-voltage switching device leads from the evaluation unit to an optical fiber consisting of an optical fiber with a diameter of approximately 1 mm, the end of which can be covered by the other contact.

Der an die Auswerteeinheit angeschlossene Lichtleiter bildet im Zusammen­wirken mit einem der beiden Kontakte eine Lichtleiter-Reflexlichtschranke, die ein sicheres Schaltstellungssignal liefert, wenn die Lichtaustritts­stelle durch einen Kontakt abgedeckt ist und Licht zurück in den Lichtlei­ter reflektiert wird. Durch die Lichtleiteranwendung ergeben sich außerdem die bekannten Vorteile der Unempfindlichkeit gegen elektromagnetische Ein­flüsse, bezüglich Gewicht und isolierenden Eigenschaften.In cooperation with one of the two contacts, the light guide connected to the evaluation unit forms a light guide reflex light barrier, which delivers a safe switching position signal when the light exit point is covered by a contact and light is reflected back into the light guide. The use of optical fibers also results in the known advantages of insensitivity to electromagnetic influences, in terms of weight and insulating properties.

Fehlmeldungen in Fällen, bei denen der bewegliche Kontakt eine seiner End­stellungen nicht erreicht hat, sind praktisch ausgeschlossen.Error reports in cases where the moving contact has not reached one of its end positions are practically impossible.

In einer bevorzugten Ausführungsform mündet das eine Ende des Lichtleiters in eine offene Bohrung eines Kontaktes, deren Öffnung durch den anderen Kontakt verschließbar ist.In a preferred embodiment, one end of the light guide opens into an open bore of a contact, the opening of which can be closed by the other contact.

Die Reflexionswirkung kann dadurch verstärkt und die Lichtaustrittsstelle gegen Verschmutzung geschützt werden, obwohl Lichtleiter-Reflexlichtschran­ken so genau einstellbar sind, daß sie gegen Verschmutzung unempfindlich sind. Der das Licht reflektierende Teil des Kontaktes kann außerdem bis zu 30 mm von der Lichtaustrittsstelle entfernt sein.The reflection effect can be enhanced and the light exit point can be protected against contamination, although light guide reflex light barriers can be set so precisely that they are insensitive to contamination. The light-reflecting part of the contact can also be up to 30 mm away from the light exit point.

Bei einer weiteren Ausführung kann der Lichtleiter in Längsrichtung durch den Kunststoffisolator führen und ein als Steckverbindung ausgebildetes Teilstück aufweisen.In a further embodiment, the light guide can pass through the plastic insulator in the longitudinal direction and have a section designed as a plug connection.

Der Lichtleiter kann dabei im Kunststoffisolator eingebettet sein.The light guide can be embedded in the plastic insulator.

Kunststoffisolatoren werden vorzugsweise aus Epoxidharz nach dem bekannten Druckgelierverfahren hergestellt. Der Lichtleiter kann dabei vor dem Gießen des Kunststoffisolators in dessen Form eingebracht und in der Folge einge­gossen werden.Plastic insulators are preferably made of epoxy resin using the known pressure gelling process. The light guide can be inserted into the mold before casting the plastic insulator and then cast in.

Es versteht sich, daß der Lichtleiter in der Form so angeordnet ist, daß die Trennfläche seiner Steckverbindung mit der Bodenfläche des Kunststoff­isolators fluchtet.It is understood that the light guide is arranged in the shape so that the separating surface of its connector is aligned with the bottom surface of the plastic insulator.

Der Lichtleiter weist eine hohe elektrische Durchschlagsfestigkeit auf und ist im Kunststoffisolator eingebettet, so daß weder die Isolationsfestig­keit, noch die Kriechstromfestigkeit des Kunststoffisolators verschlechtert werden.The light guide has a high dielectric strength and is embedded in the plastic insulator, so that neither the insulation strength nor the leakage current resistance of the plastic insulator are impaired.

Der Lichtleiter kann aus Herstellungsgründen auch durch eine im Kunststoff­isolator vorhandene Bohrung geführt und in ihr vergossen sein.For production reasons, the light guide can also be guided through a hole in the plastic insulator and cast in it.

Diese Ausführungsart wird man beispielsweise wählen, um Beschädigungen des Lichtleiters durch hohe Gießtemperaturen zu vermeiden.This type of design will be chosen, for example, to avoid damage to the light guide from high casting temperatures.

Aus dem gleichen Grund kann der Lichtleiter durch ein im Kunststoffisolator eingebettetes Kunststoffrohr geführt und in ihm vergossen sein.For the same reason, the light guide can be guided through a plastic tube embedded in the plastic insulator and cast in it.

Bevorzugterweise ist an die Auswerteeinheit ein zweiter Lichtleiter ange­schlossen, dessen anderes Ende mit einem Teil des beweglichen Kontaktes ei­ne Lichtleiter-Reflexlichtschranke bildet.A second light guide is preferably connected to the evaluation unit, the other end of which forms a light guide reflex light barrier with part of the movable contact.

Die Auswerteeinheit ist damit geeignet, zusätzlich Signale für die Aus­schaltstellung des Hochspannungsschaltgerätes zu verarbeiten.The evaluation unit is therefore suitable for additionally processing signals for the switch-off position of the high-voltage switching device.

In weiteren Ausführungsformen ist die Auswerteeinheit für wenigstens ein dreipoliges Hochspannungsschaltgerät ausgebildet, um die Schaltstellungs­meldungen für die Ein- und Ausschaltstellungen der drei Pole übernehmen zu können.In further embodiments, the evaluation unit is designed for at least one three-pole high-voltage switching device in order to be able to take over the switching position messages for the on and off switching positions of the three poles.

Bevorzugterweise enthält die Auswerteeinheit wenigstens einen Mikroprozes­sor und optische Sende- und Empfangs-Dioden zur Umsetzung der optischen Signale in elektrische Signale sowie Schnittstellen.The evaluation unit preferably contains at least one microprocessor and optical transmit and receive diodes for converting the optical signals into electrical signals and interfaces.

Die Auswerteeinheit ist damit nicht nur geeignet, die von der Lichtleiter-­Reflexionslichtschranke kommenden Signale zu verarbeiten und beispielsweise über Lichtwellenleiter an eine Steuer- und Überwachungs-Einheit die Stel­lungsmeldung, Störmeldung u.a. zu übertragen, sondern auch zusätzliche Funktionen, z.B. Verriegelungen, zu übernehmen.The evaluation unit is thus not only suitable for processing the signals coming from the fiber optic reflection light barrier and for example the fiber optic cable to a control and monitoring unit, the position report, fault message etc. but also additional functions, e.g. Interlocks to take over.

An die Auswerteeinheit können aber auch elektrische Hilfs- oder Endschalter angeschlossen sein, wodurch die Auswerteeinheit beispielsweise sämtliche Meldungen der elektrischen Betriebsmittel einer gekapselten Schaltzelle verarbeiten kann.However, electrical auxiliary switches or limit switches can also be connected to the evaluation unit, as a result of which the evaluation unit can process, for example, all messages from the electrical equipment of an encapsulated switch cell.

Lichtleitfasern, mit einer Schlichte umgeben, eignen sich besonders für das Vergießen oder Einbetten in Kunststoffisolatoren.Optical fibers, surrounded by a size, are particularly suitable for casting or embedding in plastic insulators.

Im folgenden werden an Hand der beiliegenden Zeichnung Ausführungsbeispiele des Erfindungsgegenstandes näher erläutert. Es zeigen Fig. 1 den Aufriß ei­nes Hochspannungstrennschalters mit Schaltstellungsmeldern für die Ein- und Ausschaltstellung, Fig. 2 das Detail einer Ausführungsform der Schaltstel­lungsmeldung am Hochspannungstrennschalter gemäß Fig. 1, Fig. 3 das Detail einer anderen Ausführungsform der Schaltstellungsmeldung am Hochspannungs­trennschalter gemäß Fig. 1, Fig. 4 eine Schaltstellungsmeldung an einem Hochspannungserdungsschalter für Freiluft und Fi.g 5 das Blockschaltbild einer Ausführung der Auswerteeinheit.Exemplary embodiments of the subject matter of the invention are explained in more detail below with reference to the accompanying drawing. 1 shows the elevation of a high-voltage disconnector with switch position indicators for the on and off switch position, FIG. 2 shows the detail of an embodiment of the switch position signal on the high-voltage disconnector according to FIG. 1, FIG. 3 shows the detail 1, FIG. 4 shows a switching position message on a high voltage earthing switch for outdoor use and FIG. 5 shows the block diagram of an embodiment of the evaluation unit.

In Fig. 1 ist der Pol eines Innenraum-Hochspannungstrennschalters 1, bei­spielsweise für eine Betriebsspannung von 36 kV, in der Ausschaltstellung dargestellt. Er besteht aus zwei auf einem Rahmen 16 montierten Kunststoff­isolatoren 2, 3 und einer Kontaktbahn, welche einen Festkontakt 4 mit An­schlußfahne, ein Kontaktmesser 18 und einen Drehkontakt 5 mit Anschlußfahne aufweist. Mit den Anschlußfahnen sind die Stromschienen 6, 7 elektrisch leitend verbunden.1 shows the pole of an interior high-voltage disconnector 1, for example for an operating voltage of 36 kV, in the off position. It consists of two plastic insulators 2, 3 mounted on a frame 16 and a contact track which has a fixed contact 4 with a connecting lug, a contact knife 18 and a rotary contact 5 with a connecting lug. The busbars 6, 7 are electrically conductively connected to the connecting lugs.

Den beweglichen Kontakt, der mit dem Festkontakt 4 durch Schwenken in und außer Eingriff bringbar ist, bilden der Drehkontakt 5 und das Kontaktmesser 18, welches aus zwei parallelen Messern besteht, die am einen Ende durch Distanzbolzen miteinander verbunden sind und am anderen Ende durch die Fe­derkraft einer Schrauben-Zugfeder seitlich an den Drehkontakt 5 gepreßt werden. Die Einschaltstellung des Kontaktmessers 18 ist strichliert ange­deutet.The movable contact, which can be brought into and out of engagement with the fixed contact 4 by pivoting, is formed by the rotary contact 5 and the contact knife 18, which consists of two parallel knives which are connected to one another by spacer bolts and at the other end by the spring force a helical tension spring are pressed laterally on the rotary contact 5. The switch-on position of the contact knife 18 is indicated by dashed lines.

Durch beide Kunststoffisolatoren 2,3 führt je ein Lichtleiter 8, 9, der ein als Steckverbindung ausgebildetes Teilstück 10, 11 aufweist. Die Trennflä­che der Steckverbindungen fluchtet mit der Bodenfläche der Kunststoffisola­toren 2, 3. Nach den Teilstücken 10, 11 sind die Lichtleiter 8, 9 aus dem Rahmen 16 herausgeführt und über die Leiterstücke 12, 13 an eine Auswerte­einheit 17, die sich beispielsweise im Steuerteil einer gekapselten Schalt­zelle befindet angeschlossen. Die Lichtleiter 8, 9 sind in den Kunststoff­isolatoren 2,3 eingebettet und wurden bei der Herstellung der Kunststoff­isolatoren 2, 3 mit eingegossen.A light guide 8, 9, which has a section 10, 11 designed as a plug connection, leads through each of the two plastic insulators 2, 3. The separating surface of the plug connections is aligned with the bottom surface of the plastic insulators 2, 3. After the sections 10, 11, the light guides 8, 9 are led out of the frame 16 and via the conductor sections 12, 13 to an evaluation unit 17, which is encapsulated, for example, in the control part Control cell is connected. The light guides 8, 9 are embedded in the plastic insulators 2, 3 and were cast in during the production of the plastic insulators 2, 3.

Die freien Enden der Lichtleiter 8, 9 münden in offenen Bohrungen 14, 15 einerseits des Festkontaktes 4, anderseits des Drehkontaktes 5. Diese Boh­rungen 14, 15 verlaufen jeweils schräg durch den Festkontakt 4 bzw. Dreh­ kontakt 5 von einer vorbestimmten Stelle einer Seitenfläche zur Grundflä­che, wo sie mit den freien Enden der Lichtleiter 8, 9 fluchten. In der ge­zeichneten Ausschaltstellung des Hochspannungstrennschalters 1 verschließt ein Messerende des Kontaktmessers 18 die offene Bohrung 15 am Drehkontakt 5, in der strichliert angedeuteten Einschaltstellung dagegen ein freies Messerende des Kontaktmessers 18 die offene Bohrung 14 am Festkontakt 4. Ein von der Auswerteeinheit 17 durch die Lichtleiter 8, 9 gesendeter Licht­strahl wird, soferne die offene Bohrung 14, 15 verschlossen ist, von den vorzugsweise versilberten Kontaktflächen des Kontaktmessers 18 zurück in den Lichtleiter 8, 9 reflektiert. Das entstehende Lichtsignal dieser Licht­leiter-Reflexlichtschranke wird in der Auswerteeinheit 17 vorzugsweise zu einem digitalen Schaltstellungsmeldungssignal verarbeitet.The free ends of the light guides 8, 9 open into open bores 14, 15 on the one hand of the fixed contact 4, on the other hand the rotary contact 5. These bores 14, 15 each run obliquely through the fixed contact 4 or rotation Contact 5 from a predetermined location of a side surface to the base, where they are aligned with the free ends of the light guides 8, 9. In the illustrated switch-off position of the high-voltage isolating switch 1, a knife end of the contact knife 18 closes the open bore 15 on the rotary contact 5, in the switch-on position indicated by dashed lines, on the other hand, a free knife end of the contact knife 18 closes the open bore 14 on the fixed contact 4. One from the evaluation unit 17 through the light guides 8 , 9 transmitted light beam, as long as the open bore 14, 15 is closed, is reflected back from the preferably silver-plated contact surfaces of the contact knife 18 into the light guide 8, 9. The resulting light signal of this light guide reflex light barrier is preferably processed in the evaluation unit 17 to form a digital switch position signal.

In Fig. 2 ist ein Detail des auf den Kunststoffisolator 2 geschraubten Festkontaktes 4 im vergrößerten Maßstab und teilweise im Schnitt gezeich­net. Das Lichtleiterende 19 mit der Lichtaustrittsstelle des im Kunststoff­isolator 2 eingebetteten Lichtleiters 8 ragt etwas in die offene Bohrung 14 des Festkontaktes 4 hinein, wodurch dieser präziser in der richtigen, mit dem Lichtleiter 8 fluchtenden Lage festgeschraubt werden kann.2 shows a detail of the fixed contact 4 screwed onto the plastic insulator 2 on an enlarged scale and partly in section. The light guide end 19 with the light exit point of the light guide 8 embedded in the plastic insulator 2 protrudes somewhat into the open bore 14 of the fixed contact 4, as a result of which this can be screwed more precisely into the correct position aligned with the light guide 8.

Fig. 3 zeigt eine andere Ausführung der Schaltstellungsmeldung am Festkon­takt 4 des Hochspannungstrennschalters 1, wobei dieser in Seitenansicht im vergrößerten Maßstab dargestellt ist. Das Kontaktmesser 18, im Schnitt ge­zeichnet, ist in Eingriff mit dem Festkontakt 4. Der Lichtleiter 8 besteht aus einer Lichtleitfaser mit einem Durchmesser von etwa 1 mm und ist durch ein im Kunststoffisolator 2 eingebettetes Kunststoffrohr geführt und in ihm vergossen.Fig. 3 shows another embodiment of the switching position message on the fixed contact 4 of the high-voltage disconnector 1, which is shown in side view on an enlarged scale. The contact knife 18, drawn in section, is in engagement with the fixed contact 4. The light guide 8 consists of an optical fiber with a diameter of about 1 mm and is passed through a plastic tube embedded in the plastic insulator 2 and potted in it.

Die Lichtaustrittsstelle 20 des etwas aus dem Kunststoffisolator 2 heraus­ragenden Endes des Lichtleiters 8 wird von einem Teil des Kontaktmessers 18 abgedeckt, wodurch sich eine Lichtleiter-Reflexlichtschranke bildet, dessen Lichtsignal wiederum in der Auswerteeinheit 17 zu einem Schaltstellungsmel­designal verarbeitet wird.The light exit point 20 of the end of the light guide 8, which protrudes somewhat from the plastic insulator 2, is covered by part of the contact knife 18, as a result of which a light guide reflex light barrier is formed, the light signal of which in turn is processed in the evaluation unit 17 to form a switch position signal.

Eine Ausführung der Schaltstellungsmeldung an einem Hochspannungserdungs­schalter für Freiluft zeigt Fig. 4.
Die Auswerteeinheit 17 ist im Antriebskasten des Hochspannungserdungsschal­ters angeordnet, der auf einem geerdeten Steher fest montiert ist und aus dem Rahmen 33, Porzellanisolator 32, Festkontakt 34 mit Anschlußbolzen 36 und Schaltmesser 35 besteht. Das in der Einschaltstellung befindliche Schaltmesser 35 hat U-förmigen Querschnitt und ist am Rahmen 33 um 90° schwenkbar gelagert. Die Ausschaltstellung des Schaltmessers 35 ist strich­liert angedeutet. Von der Auswerteeinheit 17 führt der Lichtleiter 38 durch das Innere des Schaltmessers 35 in einem Bogen in eine offene Bohrung am Schaltmesserende, so daß die Lichtaustrittsstelle zum Festkontakt 34 hin­weist und mit einer Kontaktfläche desselben eine Lichtleiter-Reflexlicht­schranke bildet. Es versteht sich, daß der Lichtleiter 38 entweder durch Schellen oder Kleben am Schaltmesser 35 befestigt ist. Auf ein als Steck­verbindung ausgebildetes Teilstück des Lichtleiters 38 zur einfacheren Mon­tage kann in diesem Fall verzichtet werden.4 shows an embodiment of the switching position message on a high-voltage earthing switch for outdoor use.
The evaluation unit 17 is arranged in the drive box of the high-voltage earthing switch, which is fixedly mounted on an earthed post and consists of the frame 33, porcelain insulator 32, fixed contact 34 with connecting bolts 36 and switch blade 35. The switch blade 35 in the switched-on position has a U-shaped cross section and is mounted on the frame 33 so that it can be pivoted by 90 °. The switch-off position of the switch blade 35 is indicated by dashed lines. From the evaluation unit 17, the light guide 38 leads through the inside of the switch blade 35 in an arc into an open bore at the end of the switch blade, so that the light exit point points to the fixed contact 34 and forms a light guide reflex light barrier with a contact surface thereof. It is understood that the light guide 38 is attached to the switch blade 35 either by means of clamps or gluing. In this case, it is possible to dispense with a section of the light guide 38 designed as a plug connection for easier assembly.

In Fig. 5 ist das Blockschaltbild einer Ausführung der Auswerteeinheit 17 gezeichnet. Strichpunktiert ist das elektromagnetisch dichte Gehäuse, in dem die Elektronik der Auswerteeinheit 17 untergebracht ist, angedeutet. Die Elektronik kann im einfachsten Fall aus optischen Sende- und Empfangs-­Dioden 21 zur Umsetzung der optischen Signale in elektrische Signale und elektronischen Logikschaltkreisen bestehen. Im dargestellten Ausführungs­beispiel besteht die Auswerteeinheit 17 jedoch aus dem Mikroprozessor 22 mit Speiseeinheit 23 den optischen Sende- und Empfangs-Dioden 21, die über Lichtleiter zu den Schaltstellungsmeldungen für die Einschaltstellungen E1, E2 und Ausschaltstellungen A1, A2 zweier dreipoliger Hochspannungstrenn­schalter führen, und den optischen Sende- und Empfangsdioden 24, welche über bidirektionale Lichtwellenleiter an eine zentrale Steuer- und Überwa­chungs-Einheit der Hochspannungsschaltanlage angeschlossen sind. Außerdem ist über eine Schnittstelle 25 ein elektrischer Hilfsschalter A3, z.B. ei­ner Trennwagenverriegelung, an den Mikroprozessor 22 angeschlossen.5, the block diagram of an embodiment of the evaluation unit 17 is drawn. The dot-dash line indicates the electromagnetically sealed housing in which the electronics of the evaluation unit 17 are accommodated. In the simplest case, the electronics can consist of optical transmit and receive diodes 21 for converting the optical signals into electrical signals and electronic logic circuits. In the illustrated embodiment, however, the evaluation unit 17 consists of the microprocessor 22 with supply unit 23, the optical transmit and receive diodes 21, which lead to the switch position messages for the switch-on positions E1, E2 and switch-off positions A1, A2 of two three-pole high-voltage isolating switches via optical fibers, and the optical ones Transmitting and receiving diodes 24, which are connected via bidirectional optical fibers to a central control and monitoring unit of the high-voltage switchgear. In addition, an electrical auxiliary switch A3, for example a dividing car lock, is connected to the microprocessor 22 via an interface 25.

Es können auch noch weitere Sende- und Empfangs-Dioden und Schnittstellen für den Anschluß der Schaltstellungsmeldungen oder Verriegelungen elektri­scher Betriebsmittel vorhanden sein, so daß die Auswerteeinheit 17 sämtli­che Meldungen der elektrischen Betriebsmittel und Verriegelungen einer ge­kapselten Schaltzelle oder des Schaltfeldes einer druckgasisolierten Schaltanlage verarbeiten kann. Die elektronischen Schaltkreise der Auswer­teeinheit 17 sind durch elektromagnetisch dichte Abschirmung und Filter­kreise gegen Störungen aus der Hochspanungsschaltanlage geschützt.There may also be further transmit and receive diodes and interfaces for the connection of the switch position signals or interlocks of electrical equipment, so that the evaluation unit 17 can process all messages of the electrical equipment and interlocks of an encapsulated control cell or the control panel of a compressed gas-insulated switchgear. The electronic circuits of the evaluation unit 17 are protected against interference from the high-voltage switchgear by electromagnetic shielding and filter circuits.

Schaltstellungsmelder der vorangeführten Ausführung sind universell ein­setzbar, beispielsweise auch bei Schaltgeräten druckgasisolierter Hoch­spannungsschaltanlagen, wenn der Lichtleiter dicht durch die Druckkapselung und Kunststoffisolatoren geführt wird.Switching position detectors of the preceding version can be used universally, for example also in switching devices of compressed gas-insulated high-voltage switchgear, if the light guide is guided tightly through the pressure encapsulation and plastic insulators.

Claims (10)

1. Schaltstellungsmelder für Hochspannungsschaltgeräte mit einem in und außer Eingriff mit einem beweglichen Kontakt bringbarem Festkontakt, insbesondere für Trennschalter und Erdungsschalter mit einem auf einem Kunststoffisolator angeordneten Festkontakt, wobei die Schaltstellung durch an eine Auswerteeinheit angeschlossene Lichtleiter überwacht wird, dadurch gekennzeichnet, daß von der Auswerteeinheit (17) zu einem der beiden Kontakte (4, 5, 18; 34, 35) nur ein aus einer Lichtleitfaser mit einem Durchmesser von etwa 1 mm bestehender Lichtleiter (8...13; 38, 40) führt, dessen Ende (19, 39) durch den anderen Kontakt (18; 35) abdeckbar ist.1. Switch position detector for high-voltage switchgear with a fixed contact that can be brought into and out of engagement with a movable contact, in particular for isolating switches and earthing switches with a fixed contact arranged on a plastic insulator, the switching position being monitored by light conductors connected to an evaluation unit, characterized in that the evaluation unit (17) to one of the two contacts (4, 5, 18; 34, 35) only an optical fiber (8 ... 13; 38, 40) consisting of an optical fiber with a diameter of about 1 mm leads, the end (19th , 39) can be covered by the other contact (18; 35). 2. Schaltstellungsmelder nach Anspruch 1, dadurch gekennzeichnet, daß das eine Ende (19, 39) des Lichtleiters (8...13; 38, 40) in eine offene Boh­rung (14, 15) eines Kontaktes (4, 5; 34) mündet, deren Öffnung durch den anderen Kontakt (18; 35) verschließbar ist.2. Switch position indicator according to claim 1, characterized in that one end (19, 39) of the light guide (8 ... 13; 38, 40) in an open bore (14, 15) of a contact (4, 5; 34) opens, the opening of which can be closed by the other contact (18; 35). 3. Schaltstellungsmelder nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Lichtleiter (8...13) in Längsrichtung durch den Kunststoffiso­lator (2, 3) führt und ein als Steckverbindung ausgebildetes Teilstück (10, 11) aufweist.3. Switching position indicator according to claim 1 or 2, characterized in that the light guide (8 ... 13) leads in the longitudinal direction through the plastic insulator (2, 3) and has a section designed as a plug connection (10, 11). 4. Schaltstellungsmelder nach einem der Ansprüche 1 bis 3, dadurch gekenn­zeichnet, daß der Lichtleiter (8...13) im Kunststoffisolator (2, 3) ein­gebettet ist.4. Switch position indicator according to one of claims 1 to 3, characterized in that the light guide (8 ... 13) in the plastic insulator (2, 3) is embedded. 5. Schaltstellungsmelder nach einem der Ansprüche 1 bis 3, dadurch gekenn­zeichnet, daß der Lichtleiter (8...13) durch eine im Kunststoffisolator (2, 3) vorhandene Bohrung geführt und in ihr vergossen ist.5. Switch position indicator according to one of claims 1 to 3, characterized in that the light guide (8 ... 13) through an existing in the plastic insulator (2, 3) and is cast in it. 6. Schaltstellungsmelder nach einem der Ansprüche 1 bis 3, dadurch gekenn­zeichnet, daß der Lichtleiter (8...13) durch ein im Kunststoffisolator (2, 3) eingebettetes Kunststoffrohr geführt und in ihm vergossen ist.6. Switch position indicator according to one of claims 1 to 3, characterized in that the light guide (8 ... 13) through a plastic tube embedded in the plastic insulator (2, 3) and is cast in it. 7. Schaltstellungsmelder nach einem der Ansprüche 1 bis 6, dadurch gekenn­zeichnet, daß an die Auswerteeinheit (17) ein zweiter Lichtleiter (9, 11, 13) angeschlossen ist, dessen anderes Ende mit einem Teil des be­weglichen Kontaktes (18) eine Lichtleiter-Reflexlichtschranke bildet.7. Switch position indicator according to one of claims 1 to 6, characterized in that a second light guide (9, 11, 13) is connected to the evaluation unit (17), the other end of which with a part of the movable contact (18) is a light guide reflex light barrier forms. 8. Schaltstellungsmelder nach einem der Ansprüche 1 bis 7, dadurch gekenn­zeichnet, daß die Auswerteeinheit (17) für wenigstens ein dreipoliges Hochspannungsschaltgerät ausgebildet ist.8. Switch position indicator according to one of claims 1 to 7, characterized in that the evaluation unit (17) is designed for at least one three-pole high-voltage switching device. 9. Schaltstellungsmelder nach einem der Ansprüche 1 bis 8, dadurch gekenn­zeichnet, daß die Auswerteeinheit (17) wenigstens einen Mikroprozessor (22) mit Speiseeinheit (23) und optische Sende- und Empfangs-Dioden (21) zur Umsetzung der optischen Signale in elektrische Signale sowie Schnittstellen (25) enthält.9. Switch position indicator according to one of claims 1 to 8, characterized in that the evaluation unit (17) at least one microprocessor (22) with supply unit (23) and optical transmit and receive diodes (21) for converting the optical signals into electrical signals and interfaces (25). 10. Schaltstellungsmelder nach einem der Ansprüche 1 bis 9, dadurch gekenn­zeichnet, daß an die Auswerteeinheit (17) elektrische Hilfs- oder End­schalter angeschlossen sind.10. Switch position indicator according to one of claims 1 to 9, characterized in that electrical auxiliary or limit switches are connected to the evaluation unit (17).
EP19880890084 1987-06-29 1988-04-01 Position indicator for high voltage circuit breaker Expired - Lifetime EP0298069B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT163087A AT387473B (en) 1987-06-29 1987-06-29 SWITCH POSITION DETECTOR FOR HIGH VOLTAGE SWITCHGEAR
AT1630/87 1987-06-29

Publications (3)

Publication Number Publication Date
EP0298069A2 true EP0298069A2 (en) 1989-01-04
EP0298069A3 EP0298069A3 (en) 1990-08-29
EP0298069B1 EP0298069B1 (en) 1994-01-26

Family

ID=3517570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880890084 Expired - Lifetime EP0298069B1 (en) 1987-06-29 1988-04-01 Position indicator for high voltage circuit breaker

Country Status (4)

Country Link
EP (1) EP0298069B1 (en)
AT (1) AT387473B (en)
DE (1) DE3887396D1 (en)
ES (1) ES2048216T3 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4042302A1 (en) * 1990-12-31 1992-07-09 Bodenseewerk Geraetetech Switch position sensor - measures position of switchable, control component and incorporates optical transmitter fed with different frequencies
WO1997028590A1 (en) * 1996-01-31 1997-08-07 Siemens Aktiengesellschaft Method of determining the position of a switching device
EP1204129A2 (en) * 2000-11-04 2002-05-08 Alstom Protection device for a switchgear
ES2557252A1 (en) * 2014-07-22 2016-01-22 Administrador De Infraestructuras Ferroviarias (Adif) Equipotentiality management system in high voltage railway installations (Machine-translation by Google Translate, not legally binding)
CN106098455A (en) * 2016-08-09 2016-11-09 苏州华安普电力科技股份有限公司 A kind of disconnecting switch detecting Guan Bi situation
CN108364815A (en) * 2018-03-19 2018-08-03 广东电网有限责任公司佛山供电局 A kind of visualization device for observing disconnecting link contact on off operating mode
CN114093707A (en) * 2021-10-22 2022-02-25 深圳供电局有限公司 GIS equipment
CN117133574A (en) * 2023-09-01 2023-11-28 丹阳铁龙轨道装备有限公司 High-voltage grounding switch and high-voltage box

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110610825B (en) * 2019-09-04 2021-09-24 山东鲁能力源电器设备有限公司 Pressure-prompting disconnecting link for power system
CN113327807B (en) * 2021-07-01 2023-05-16 中国南方电网有限责任公司超高压输电公司贵阳局 High-voltage isolating switch
CN113433441B (en) * 2021-08-26 2022-01-07 长缆电工科技股份有限公司 High-voltage experiment test piece testing device and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1229624B (en) * 1963-08-16 1966-12-01 Siemens Ag Device for displaying the switch position of high-voltage switches
US3746870A (en) * 1970-12-21 1973-07-17 Gen Electric Coated light conduit
FR2454662A1 (en) * 1979-04-20 1980-11-14 Perren Benno SENSOR FOR MONITORING DEVICE
EP0088155A2 (en) * 1981-12-24 1983-09-14 Hydro-Quebec Ultrasonic position indicator for an isolating switch
EP0117754A2 (en) * 1983-02-28 1984-09-05 Kabushiki Kaisha Toshiba Electrical switchgear
AT378861B (en) * 1984-04-05 1985-10-10 Sprecher & Schuh Ag SWITCH POSITION DETECTOR FOR HIGH VOLTAGE EARTH SWITCH
EP0165116A1 (en) * 1984-05-10 1985-12-18 Commissariat A L'energie Atomique System for optical detection from a distance

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565027B1 (en) * 1984-05-23 1986-09-26 Aerospatiale DEVICE FOR CONTROLLING THE STATE OF ELECTRICAL CONTACTS

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1229624B (en) * 1963-08-16 1966-12-01 Siemens Ag Device for displaying the switch position of high-voltage switches
US3746870A (en) * 1970-12-21 1973-07-17 Gen Electric Coated light conduit
FR2454662A1 (en) * 1979-04-20 1980-11-14 Perren Benno SENSOR FOR MONITORING DEVICE
EP0088155A2 (en) * 1981-12-24 1983-09-14 Hydro-Quebec Ultrasonic position indicator for an isolating switch
EP0117754A2 (en) * 1983-02-28 1984-09-05 Kabushiki Kaisha Toshiba Electrical switchgear
AT378861B (en) * 1984-04-05 1985-10-10 Sprecher & Schuh Ag SWITCH POSITION DETECTOR FOR HIGH VOLTAGE EARTH SWITCH
EP0165116A1 (en) * 1984-05-10 1985-12-18 Commissariat A L'energie Atomique System for optical detection from a distance

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4042302A1 (en) * 1990-12-31 1992-07-09 Bodenseewerk Geraetetech Switch position sensor - measures position of switchable, control component and incorporates optical transmitter fed with different frequencies
WO1997028590A1 (en) * 1996-01-31 1997-08-07 Siemens Aktiengesellschaft Method of determining the position of a switching device
EP1204129A2 (en) * 2000-11-04 2002-05-08 Alstom Protection device for a switchgear
EP1204129A3 (en) * 2000-11-04 2004-01-14 Alstom Protection device for a switchgear
ES2557252A1 (en) * 2014-07-22 2016-01-22 Administrador De Infraestructuras Ferroviarias (Adif) Equipotentiality management system in high voltage railway installations (Machine-translation by Google Translate, not legally binding)
CN106098455A (en) * 2016-08-09 2016-11-09 苏州华安普电力科技股份有限公司 A kind of disconnecting switch detecting Guan Bi situation
CN108364815A (en) * 2018-03-19 2018-08-03 广东电网有限责任公司佛山供电局 A kind of visualization device for observing disconnecting link contact on off operating mode
CN108364815B (en) * 2018-03-19 2024-04-12 广东电网有限责任公司佛山供电局 Visualization device for observing on-off state of disconnecting link contact
CN114093707A (en) * 2021-10-22 2022-02-25 深圳供电局有限公司 GIS equipment
CN114093707B (en) * 2021-10-22 2024-01-19 深圳供电局有限公司 GIS equipment
CN117133574A (en) * 2023-09-01 2023-11-28 丹阳铁龙轨道装备有限公司 High-voltage grounding switch and high-voltage box
CN117133574B (en) * 2023-09-01 2024-02-23 丹阳铁龙轨道装备有限公司 High-voltage grounding switch and high-voltage box

Also Published As

Publication number Publication date
EP0298069A3 (en) 1990-08-29
ATA163087A (en) 1988-06-15
DE3887396D1 (en) 1994-03-10
ES2048216T3 (en) 1994-03-16
AT387473B (en) 1989-01-25
EP0298069B1 (en) 1994-01-26

Similar Documents

Publication Publication Date Title
EP0298069B1 (en) Position indicator for high voltage circuit breaker
DE68919684T2 (en) System for fault localization in a substation.
DE102007022401A1 (en) Circuit breaker for arc fault protection
EP0134541A1 (en) Supporting insulator for high voltage
DE19712900A1 (en) Sensor system for measuring electric current and voltage esp. for medium voltage
AT393338B (en) DEVICE FOR CONTROLLING AND MONITORING AN ELECTRICAL POWER DISTRIBUTION SYSTEM
EP1276121A2 (en) Current transformer
DE102008018272A1 (en) Gas insulated voltage transformer for e.g. insulating power station, has container filled with insulating gas, and hard rubber joint and universal joint provided in actuating bar and insulated bar to vibrate moving high voltage contacts
DE102008011522B4 (en) Slide-in switching device for insertion into a slide-in cassette of a control cabinet and for use with a low voltage or medium voltage
WO2007093575A1 (en) Switchgear assembly with a monitoring camera
EP0494151B1 (en) Earthing switch for a metal-encapsulated high-voltage switchboard plant insulated by pressurised gas
DE19546215C1 (en) Switch position indication system for mechanically-operated switchgear
DE19600668C2 (en) Optical monitoring system for high or medium voltage switches and disconnectors with such a monitoring system
CH664851A5 (en) Switch position indicator for HV earthing switch
DE3623424C2 (en) Method for switching off a single or multi-phase electrical switchgear and device for switching off
DE2155398B2 (en) Arrangement for the detection of the disconnected state of a separable system part of an encapsulated, insulating gas-filled high-voltage switchgear
EP0310589B1 (en) Electronic control apparatus
DE3884179T2 (en) Control relay with pluggable sensor.
EP0054726A2 (en) Device for earthing the live parts of metal-clad switchgear and for testing of the cables connected to said switchgear
EP2642499B1 (en) Device for reporting the setting of a low voltage circuit switch with such a switch
DE19628634C2 (en) Optical monitoring system for high and medium voltage switches and disconnectors with such a monitoring system
DE29906247U1 (en) Post insulator and voltage test system containing it
DE1246081B (en) High-voltage switch in encapsulated design
DE3627479A1 (en) Device for differential protection of power cables
EP0782159A2 (en) Optical monitoring system for an isolating switch and isolating switch with such a monitoring system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH DE ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19900904

17Q First examination report despatched

Effective date: 19920708

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE ES FR GB GR IT LI LU NL SE

REF Corresponds to:

Ref document number: 3887396

Country of ref document: DE

Date of ref document: 19940310

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: GEC ALSTHOM T&D GESELLSCHAFT M.B.H.

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: GEC ALSTHOM T&D GESELLSCHAFT M.B.H.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940331

EPTA Lu: last paid annual fee
ET Fr: translation filed
ITPR It: changes in ownership of a european patent

Owner name: CAMBIO RAGIONE SOCIALE;GEC ALSTHOM T & D GESELLSCH

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3011285

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: GEC ALSTHOM T&D GMBH

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: GEC ALSTHOM T&D GESELLSCHAFT M.B.H. TE LINZ, OOSTE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 88890084.2

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19970314

Year of fee payment: 10

Ref country code: FR

Payment date: 19970314

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19970324

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 19970328

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19970418

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980402

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19980402

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980430

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19980430

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19980401

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: ALSTOM AUSTRIA AG;GEC ALSTHOM AG

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Free format text: GEC ALSTHOM T&D GESELLSCHAFT M.B.H. TRANSFER- GEC ALSTHOM AG * GEC ALSTHOM AG TRANSFER- ALSTOM AUSTRIA AG

EUG Se: european patent has lapsed

Ref document number: 88890084.2

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20000201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20000320

Year of fee payment: 13

Ref country code: DE

Payment date: 20000320

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20000323

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 20000404

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20000405

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010430

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010430

BERE Be: lapsed

Owner name: ALSTHOM AUSTRIA A.G.

Effective date: 20010430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20011101

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20011101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050401