EP0755061A1 - Single-pole voltage transformer - Google Patents

Single-pole voltage transformer Download PDF

Info

Publication number
EP0755061A1
EP0755061A1 EP95111133A EP95111133A EP0755061A1 EP 0755061 A1 EP0755061 A1 EP 0755061A1 EP 95111133 A EP95111133 A EP 95111133A EP 95111133 A EP95111133 A EP 95111133A EP 0755061 A1 EP0755061 A1 EP 0755061A1
Authority
EP
European Patent Office
Prior art keywords
voltage converter
primary winding
voltage
converter according
contact
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
EP95111133A
Other languages
German (de)
French (fr)
Other versions
EP0755061B1 (en
Inventor
Holger Dr.-Ing. Däumling
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.)
Ritz Messwandler GmbH and Co KG
Original Assignee
Ritz Messwandler GmbH and Co KG
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 Ritz Messwandler GmbH and Co KG filed Critical Ritz Messwandler GmbH and Co KG
Priority to EP95111133A priority Critical patent/EP0755061B1/en
Priority to DE59504564T priority patent/DE59504564D1/en
Priority to AT95111133T priority patent/ATE174719T1/en
Priority to ES95111133T priority patent/ES2126815T3/en
Publication of EP0755061A1 publication Critical patent/EP0755061A1/en
Application granted granted Critical
Publication of EP0755061B1 publication Critical patent/EP0755061B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/24—Voltage transformers
    • H01F38/26—Constructions

Definitions

  • the invention relates to a voltage converter, in particular for high and medium voltage switchgear, with a magnetic core and a primary and secondary winding arranged thereon, between which an insulating layer is provided, the primary winding having a conductor which at one end leads to an external high-voltage contact is and at the other end in operation, a conductive connection to ground potential is made and wherein the secondary winding has a conductor, the ends of which are led to external measuring contacts.
  • the object of the invention is to reduce the assembly effort when testing switchgear.
  • the line connecting the other end of the primary winding to earth potential in the operating state is designed such that it is designed to be separable for an overvoltage test case.
  • the construction according to the invention allows only the earth potential-side connection of the primary winding to be disconnected for testing. For safety reasons, a cap that is resistant to high voltages is placed on the exposed contact. Otherwise, the voltage converter remains firmly connected to the switchgear.
  • the voltage converter For simple and convenient connection of the voltage converter, it is provided that it is one Terminal box in which the conductive connection for ground potential and the ends of the secondary winding are placed on contacts.
  • the converter is constructed such that the primary winding consists of two partial windings, the two partial windings of the primary winding in particular having essentially the same number of turns.
  • the secondary winding is arranged within the primary winding and is externally separated from the primary winding by an insulation layer, the insulation preferably having an outer conductive layer which preferably also conductively connects the two partial windings of the primary winding.
  • the insulation layer has a dielectric strength that corresponds to the test voltage, the insulation layer is only loaded with half the test voltage potential for normal operation, which contributes to operational safety.
  • the contact security of the voltage converter is improved if the earth potential-side contact of the primary winding is designed as a high-voltage contact, to which a test voltage-resistant cap is assigned, which covers the contact in the test case.
  • 1 denotes a voltage transformer encapsulated on all sides by metal.
  • the housing 2 which is usually at ground potential 3, serves as metal encapsulation.
  • the actual voltage converter is located inside the housing 2. It consists of a magnetic core 4, which is enclosed by a conductor of a secondary winding 5. The ends 6 and 7 of the conductor of the secondary winding are guided in a terminal box 8 on contacts a and n.
  • the secondary winding 5 is enclosed on the outside by an insulation layer 9, which serves as a supporting body of a primary winding 10.
  • the current flow in the windings is shown in the usual way with a point or cross.
  • Primary winding 10 consists of 2 partial windings 11 and 12, both of which have the same number of turns and are connected to one another by conductors 13.
  • Conductor 13 can, for example, also be designed as a metallization of the insulation layer 9.
  • a conductor end 14 of the primary winding 10 is led outwards to the high-voltage contact A and another end 15 of the conductor of the primary winding to the high-voltage contact N.
  • this high-voltage contact N is guided into the terminal box 8 by means of a conductor 16 and is connected to earth potential 3 there.
  • the interior of the housing 2 is encapsulated by means of an insulating compound 18, as a result of which the installation parts are fixed.
  • conductor 16 is separated from contact N.
  • the full test voltage can be applied to the high-voltage contact A in the test case. This is then also applied to the high-voltage contact N.
  • the separation of the Voltage converter at cooking voltage contact A is therefore advantageously omitted.
  • the entire switchgear can therefore be tested for its dielectric strength without any major installation effort.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Testing Relating To Insulation (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Insulating Of Coils (AREA)
  • Dc-Dc Converters (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Control Of Stepping Motors (AREA)
  • Inverter Devices (AREA)

Abstract

The high to medium level voltage converter is within a metal housing Ä2Ü and consists of a magnetic core Ä4Ü that is wound with a secondary winding Ä5Ü with the ends Ä6,7Ü secured to a terminal blockÄ8Ü The secondary coil is wound with insulation and is then wound with two primary coils Ä11,12Ü having an interconnection Ä15Ü. The ends of the primary coil are coupled to terminals ÄA,NÜ. The internal space of the housing is filled with an isolating material.

Description

Die Erfindung berifft einen Spannungswandler, insbesondere für Hoch- und Mittelspannungsschaltanlagen, mit einem Magnetkern und einer auf diesem angeordneten Primär- sowie Sekundärwicklung, zwischen denen eine Isolierschicht vorgesehen ist, wobei die Primärwicklung einen Leiter aufweist, der an einem Ende an einen außen liegenden Hochspannungskontakt geführt ist und am anderen Ende im Betriebsfall eine leitende Verbindung zum Erdpotential geführt ist und wobei die Sekundärwicklung einen Leiter aufweist, dessen Enden an außenliegende Meßkontakte geführt sind.The invention relates to a voltage converter, in particular for high and medium voltage switchgear, with a magnetic core and a primary and secondary winding arranged thereon, between which an insulating layer is provided, the primary winding having a conductor which at one end leads to an external high-voltage contact is and at the other end in operation, a conductive connection to ground potential is made and wherein the secondary winding has a conductor, the ends of which are led to external measuring contacts.

Bekannte Hochspannungswandler müssen bei der Prüfung der Spannungsfestigkeit einer Schaltanlage demontiert werden, da sie sonst beschädigt werden. Das Abtrennen der Spannungswandler von der Schaltanlage verursacht einen erheblichen Montageaufwand.Known high-voltage transformers must be dismantled when testing the dielectric strength of a switchgear, otherwise they will be damaged. Disconnecting the voltage transformers from the switchgear causes considerable assembly effort.

Aufgabe der Erfindung ist es, den Montageaufwand beim Prüfen von Schaltanlagen zu verringern.The object of the invention is to reduce the assembly effort when testing switchgear.

Diese Aufgabe wird bei dem gattungsgemäßen Gegenstand dadurch gelöst, daß die im Betriebszustand das andere Ende der Primärwicklung mit Erdpotential verbindende Leitung so ausgebildet ist, daß sie für einen Überspannungsprüffall trennbar ausgebildet ist. Die erfindungsgemäße Konstruktion erlaubt es, daß zur Prüfung lediglich die erdpotentialseitige Verbindung der Primärwicklung getrennt wird. Auf dem freigelegten Kontakt wird aus Sicherheitgründen eine Kappe aufgesetzt, die hochspannungsfest ist. Im übrigen bleibt der Spannungswandler fest mit der Schaltanlage verbunden.This object is achieved in the generic subject matter in that the line connecting the other end of the primary winding to earth potential in the operating state is designed such that it is designed to be separable for an overvoltage test case. The construction according to the invention allows only the earth potential-side connection of the primary winding to be disconnected for testing. For safety reasons, a cap that is resistant to high voltages is placed on the exposed contact. Otherwise, the voltage converter remains firmly connected to the switchgear.

Zum einfachen und bequemen Anschließen des Spannungswandlers ist vorgesehen, daß er einen Klemmenkasten aufweist, in dem die leitende Verbindung für Erdpotential und die Enden der Sekundärwicklung auf Kontakte gelegt sind.For simple and convenient connection of the voltage converter, it is provided that it is one Terminal box in which the conductive connection for ground potential and the ends of the secondary winding are placed on contacts.

Der Wandler ist so aufgebaut, daß die Primärwicklung aus zwei Teilwicklungen besteht, wobei insbesondere die beiden Teilwicklungen der Primärwicklung im wesentlichen dieselben Windungszahlen aufweisen.The converter is constructed such that the primary winding consists of two partial windings, the two partial windings of the primary winding in particular having essentially the same number of turns.

Erfindungsgemäß ist die Sekundärwicklung innerhalb der Primärwicklung angeordnet und außen durch eine Isolationsschicht von der Primärwicklung getrennt, wobei vorzugsweise die Isolation eine äußere leitende Schicht aufweist, die vorzugsweise auch die beiden Teilwicklungen der Primärwicklung leitend verbindet.According to the invention, the secondary winding is arranged within the primary winding and is externally separated from the primary winding by an insulation layer, the insulation preferably having an outer conductive layer which preferably also conductively connects the two partial windings of the primary winding.

Dadurch, daß die Isolationsschicht eine Durchschlagspannungsfestigkeit aufweist, die der Prüfspannung entspricht, wird für den Normalbetrieb die Isolationsschicht nur mit dem halben Prüfspannungspotential belastet, was zur Betriebssicherheit beiträgt.Because the insulation layer has a dielectric strength that corresponds to the test voltage, the insulation layer is only loaded with half the test voltage potential for normal operation, which contributes to operational safety.

Die Berührungssicherheit des Spannungswandlers wird verbessert, wenn der erdpotentialseitige Kontakt der Primärwicklung als Hochspannungskontakt ausgebildet ist, dem eine prüfspannungsfeste Kappe zugeordnet ist, die im Prüffall den Kontakt abdeckt.The contact security of the voltage converter is improved if the earth potential-side contact of the primary winding is designed as a high-voltage contact, to which a test voltage-resistant cap is assigned, which covers the contact in the test case.

Weitere vorteilhafte Ausgestaltungen des Spannungswandlers sind in den Unteransprüchen 9 und 10 beschrieben.Further advantageous configurations of the voltage converter are described in subclaims 9 and 10.

Die Erfindung wird in einer bevorzugten Ausführungsform unter Bezugnahme auf eine Zeichnung beschrieben, wobei weitere vorteilhafte Einzelheiten den Figuren der Zeichnung zu entnehmen sind. Funktionsmäßig gleiche Teile sind dabei mit denselben Bezugszeichen versehen.The invention is described in a preferred embodiment with reference to a drawing, with further advantageous details being shown in the figures of the drawing. Functionally identical parts are provided with the same reference numerals.

Die Zeichnung zeigt im einzelnen:

Figur 1
schematisch einen Vertikalschnitt durch den erfindungsgemäßen Spannungswandler.
The drawing shows in detail:
Figure 1
schematically shows a vertical section through the voltage converter according to the invention.

In Figur 1 bezeichnet 1 einen allseitig durch Metall gekapselten Spannungswandler. Als Metallkapselung dient das Gehäuse 2 das üblicherweise auf Erdpotential 3 liegt.In FIG. 1, 1 denotes a voltage transformer encapsulated on all sides by metal. The housing 2, which is usually at ground potential 3, serves as metal encapsulation.

Im Inneren des Gehäuses 2 befindet sich der eigentliche Spannungswandler. Er besteht aus einem Magnetkern 4, der von einem Leiter einer Sekundärwicklung 5 umschlossen ist. Die Enden 6 und 7 des Leiters der Sekundärwicklung sind in einen Klemmkasten 8 auf Kontakte a und n geführt.The actual voltage converter is located inside the housing 2. It consists of a magnetic core 4, which is enclosed by a conductor of a secondary winding 5. The ends 6 and 7 of the conductor of the secondary winding are guided in a terminal box 8 on contacts a and n.

Die Sekundärwicklung 5 wird außen von einer Isolationsschicht 9 umschlossen, die als Tragkörper einer Primärwicklung 10 dient. Der Stromfluß in den Wicklungen ist in üblicher Weise mit einem Punkt bzw. Kreuz dargstellt. Primärwicklung 10 besteht aus 2 Teilwicklungen 11 und 12, die beide dieselbe Windungszahl aufweisen und miteinander durch Leiter 13 verbunden sind. Leiter 13 kann beispielsweise auch als Metallisierung der Isolationsschicht 9 ausgebildet sein.The secondary winding 5 is enclosed on the outside by an insulation layer 9, which serves as a supporting body of a primary winding 10. The current flow in the windings is shown in the usual way with a point or cross. Primary winding 10 consists of 2 partial windings 11 and 12, both of which have the same number of turns and are connected to one another by conductors 13. Conductor 13 can, for example, also be designed as a metallization of the insulation layer 9.

Ein Leiterende 14 der Primärwicklung 10 ist nach außen an den Hochspannungskontakt A und ein anderes Ende 15 des Leiters der Primärwicklung an den Hochspannungskontakt N geführt. Dieser Hochspannungskontakt N ist im Normalbetrieb mittels eines Leiters 16 in den Klemmkasten 8 geführt und dort auf Erdpotential 3 gelegt.A conductor end 14 of the primary winding 10 is led outwards to the high-voltage contact A and another end 15 of the conductor of the primary winding to the high-voltage contact N. In normal operation, this high-voltage contact N is guided into the terminal box 8 by means of a conductor 16 and is connected to earth potential 3 there.

Das Innere des Gehäuses 2 ist mittels einer Isoliermasse 18 vergossen, dadurch sind die Einbauteile festgelegt.The interior of the housing 2 is encapsulated by means of an insulating compound 18, as a result of which the installation parts are fixed.

Für den Fall eines Spannungstestes wird Leiter 16 von Kontakt N getrennt.In the case of a voltage test, conductor 16 is separated from contact N.

An dem Hochspannungskontakt A kann im Prüffall die volle Prüfspannung anliegen. Diese liegt dann auch an dem Hochspannungskontakt N an. Das Trennen des Spannungswandlers an Kochspannungskontakt A entfällt somit vorteilhaft. Die gesamte Schaltanlage kann also ohne großen Montageaufwand auf ihre Spannungsfestigkeit geprüft werden.The full test voltage can be applied to the high-voltage contact A in the test case. This is then also applied to the high-voltage contact N. The separation of the Voltage converter at cooking voltage contact A is therefore advantageously omitted. The entire switchgear can therefore be tested for its dielectric strength without any major installation effort.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
SpannungswandlerVoltage converter
22nd
Gehäusecasing
33rd
ErdpotentialEarth potential
44th
MagnetkernMagnetic core
55
SekundärwicklungSecondary winding
66
LeiterendeHead end
77
LeiterendeHead end
88th
KlemmkastenTerminal box
99
IsolationsschichtInsulation layer
1010th
PrimärwicklungPrimary winding
1111
TeilwicklungPartial winding
1212th
TeilwicklungPartial winding
1313
Leiterladder
1414
LeiterendeHead end
1515
LeiterendeHead end
1616
Leiterladder
1818th
IsoliermasseInsulating compound
aa
KontaktContact
nn
KontaktContact
AA
HochspannungskontaktHigh voltage contact
NN
erdpotentialseitiger HochspannungskontaktEarth potential-side high-voltage contact

Claims (10)

Spannungswandler, insbesondere für Hoch- und Mittelspannungsschaltanlagen, mit einem Magnetkern und einer auf diesem angeordneten Primär- sowie Sekundärwicklung, zwischen denen eine Isolierschicht vorgesehen ist, wobei die Primärwicklung einen Leiter aufweist, der an einem Ende an einen außen liegenden Hochspannungskontakt geführt ist und am anderen Ende im Betriebsfall eine leitende Verbindung zum Erdpotential geführt ist und wobei die Sekundärwicklung einen Leiter aufweist, dessen Enden an außenliegende Meßkontakte geführt sind, dadurch gekennzeichnet, daß die im Betriebszustand das andere Ende (15) der Primärwicklung (10) mit Erdpotential (3) verbindende Leitung (16) so ausgebildet ist, daß sie für einen Überspannungsprüffall trennbar ist.Voltage converter, in particular for high and medium voltage switchgear, with a magnetic core and a primary and secondary winding arranged thereon, between which an insulating layer is provided, the primary winding having a conductor which is guided at one end to an external high-voltage contact and at the other In operation, a conductive connection is made to earth potential and the secondary winding has a conductor, the ends of which are connected to external measuring contacts, characterized in that, in the operating state, connecting the other end (15) of the primary winding (10) to earth potential (3) Line (16) is designed so that it can be separated for an overvoltage test. Spannungswandler nach Anspruch 1, dadurch gekennzeichnet, daß er einen Klemmenkasten (8) aufweist, in dem die leitende Verbindung (16) für Erdpotential (3) der Primärwicklung (N) und die Enden (6, 7) der Sekundärwicklung (5) auf Kontakte (a, n) gelegt sind.Voltage converter according to claim 1, characterized in that it has a terminal box (8) in which the conductive connection (16) for earth potential (3) of the primary winding (N) and the ends (6, 7) of the secondary winding (5) on contacts (a, n) are laid. Spannungswandler nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Primärwicklung (10) aus zwei Teilwickungen (11, 12) besteht.Voltage converter according to claim 1 or 2, characterized in that the primary winding (10) consists of two partial windings (11, 12). Spannungswandler nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß die beiden Teilwicklungen (11, 12) der Primärwicklung im wesentlichen dieselben Windungszahlen aufweisen.Voltage converter according to claim 1, 2 or 3, characterized in that the two partial windings (11, 12) of the primary winding have essentially the same number of turns. Spannungswandler nach Anspruch 1, 2, 3 oder 4, dadurch gekennzeichnet, daß die Sekundärwicklung (5) innerhalb der Primärwicklung (10) angeordnet ist und außen durch eine Isolationsschicht (9) von der Primärwicklung (10) getrennt ist.Voltage converter according to Claim 1, 2, 3 or 4, characterized in that the secondary winding (5) is arranged within the primary winding (10) and is separated from the primary winding (10) on the outside by an insulation layer (9). Spannungswandler nach Anspruch 1, 2, 3, 4 oder 5, dadurch gekennzeichnet, daß die Isolation (9) eine äußere leitende Schicht aufweist, die vorzugsweise auch die beiden Teilwicklungen der Primärwicklung leitend verbindet.Voltage converter according to claim 1, 2, 3, 4 or 5, characterized in that the insulation (9) has an outer conductive layer which preferably also conductively connects the two partial windings of the primary winding. Spannungswandler nach Anspruch 1, 2, 3, 4, 5, oder 6, dadurch gekennzeichnet, daß die Isolationsschicht (9) eine Durchschlagspannungsfestigkeit aufweist, die der Prüfspannung entspricht.Voltage converter according to claim 1, 2, 3, 4, 5 or 6, characterized in that the insulation layer (9) has a dielectric strength which corresponds to the test voltage. Spannungswandler nach Anspruch 1, 2, 3, 4, 5, 6, oder 7, dadurch gekennzeichnet, daß der erdpotentialseitige Kontakt der Primärwicklung als Hochspannungskontakt (N) ausgebildet ist, dem eine prüfspannungsfeste Kappe zugeordnet ist, die im Prüffall den Kontakt abdeckt.Voltage converter according to claim 1, 2, 3, 4, 5, 6 or 7, characterized in that the earth potential-side contact of the primary winding is designed as a high-voltage contact (N), to which a test voltage-resistant cap is assigned, which covers the contact in the test case. Spannungswandler nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er mit Isoliermasse (18) vergossen ist.Voltage converter according to one or more of the preceding claims, characterized in that it is cast with insulating compound (18). Spannungswandler nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Vergußmasse außen eine leitende Schicht (2), z.B. eine Metallisierung oder ein Metallgehäuse (2) aufweist, die bzw. das mit dem Erdpotential (3) verbunden ist.Voltage converter according to one or more of the preceding claims, characterized in that the potting compound has a conductive layer (2) on the outside, for example a metallization or a metal housing (2), which is connected to the ground potential (3).
EP95111133A 1995-07-15 1995-07-15 Single-pole voltage transformer Expired - Lifetime EP0755061B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP95111133A EP0755061B1 (en) 1995-07-15 1995-07-15 Single-pole voltage transformer
DE59504564T DE59504564D1 (en) 1995-07-15 1995-07-15 Single pole voltage converter
AT95111133T ATE174719T1 (en) 1995-07-15 1995-07-15 SINGLE POLE VOLTAGE CONVERTER
ES95111133T ES2126815T3 (en) 1995-07-15 1995-07-15 SINGLE-POLE VOLTAGE TRANSFORMER.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95111133A EP0755061B1 (en) 1995-07-15 1995-07-15 Single-pole voltage transformer

Publications (2)

Publication Number Publication Date
EP0755061A1 true EP0755061A1 (en) 1997-01-22
EP0755061B1 EP0755061B1 (en) 1998-12-16

Family

ID=8219436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111133A Expired - Lifetime EP0755061B1 (en) 1995-07-15 1995-07-15 Single-pole voltage transformer

Country Status (4)

Country Link
EP (1) EP0755061B1 (en)
AT (1) ATE174719T1 (en)
DE (1) DE59504564D1 (en)
ES (1) ES2126815T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999014772A1 (en) * 1997-09-16 1999-03-25 Kommanditgesellschaft Ritz Messwandler Gmbh & Co. Transformer system provided with a decoupling system
WO2009037153A1 (en) * 2007-09-18 2009-03-26 Siemens Aktiengesellschaft Transducer arrangement having a high voltage winding, and method for the production of a transducer arrangement having a high voltage winding
CN101930838A (en) * 2010-08-12 2010-12-29 浙江天际互感器有限公司 Electronic type voltage transformer
WO2016169031A1 (en) * 2015-04-23 2016-10-27 Abb技术有限公司 Potential transformer isolating device and gas-insulated switchgear

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102360873B (en) * 2011-06-14 2013-01-16 中山市泰峰电气有限公司 Two-core column voltage transformer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061430B (en) * 1958-08-07 1959-07-16 Koch & Sterzel Kommanditgesell transformer
DE1256783B (en) * 1963-04-11 1967-12-21 Siemens Ag Process for the production of cast resin transducers
DE2506937A1 (en) * 1974-03-01 1975-09-04 Asea Ab Transformer with high distribution factor on HV side - has core limb with high windings outside and low windings inside
EP0653767A1 (en) * 1993-11-11 1995-05-17 AEG Sachsenwerk GmbH Transformer for medium voltage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061430B (en) * 1958-08-07 1959-07-16 Koch & Sterzel Kommanditgesell transformer
DE1256783B (en) * 1963-04-11 1967-12-21 Siemens Ag Process for the production of cast resin transducers
DE2506937A1 (en) * 1974-03-01 1975-09-04 Asea Ab Transformer with high distribution factor on HV side - has core limb with high windings outside and low windings inside
EP0653767A1 (en) * 1993-11-11 1995-05-17 AEG Sachsenwerk GmbH Transformer for medium voltage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999014772A1 (en) * 1997-09-16 1999-03-25 Kommanditgesellschaft Ritz Messwandler Gmbh & Co. Transformer system provided with a decoupling system
WO2009037153A1 (en) * 2007-09-18 2009-03-26 Siemens Aktiengesellschaft Transducer arrangement having a high voltage winding, and method for the production of a transducer arrangement having a high voltage winding
CN101930838A (en) * 2010-08-12 2010-12-29 浙江天际互感器有限公司 Electronic type voltage transformer
WO2016169031A1 (en) * 2015-04-23 2016-10-27 Abb技术有限公司 Potential transformer isolating device and gas-insulated switchgear

Also Published As

Publication number Publication date
DE59504564D1 (en) 1999-01-28
EP0755061B1 (en) 1998-12-16
ES2126815T3 (en) 1999-04-01
ATE174719T1 (en) 1999-01-15

Similar Documents

Publication Publication Date Title
EP0688071B1 (en) Metal-clad gas-insulated switchgear
WO2006103193A2 (en) Transformer provided with an electrical shielding
WO1993023861A1 (en) Step switch
EP0755061A1 (en) Single-pole voltage transformer
DE69401800T2 (en) Multipurpose power feedthrough
DE19755887A1 (en) Voltage transformer especially for gas-insulated medium voltage switch and control-gear
DE3742610C1 (en) Coupling capacitor for a voltage measuring and/or display device
EP0856925B1 (en) Voltage transformer
DE4414828C2 (en) High voltage converter
EP0141296A1 (en) Circuit arrangement for the wiring of high power transformers
DE19502061A1 (en) Transducer arrangement at the field connection of encapsulated medium-voltage switchgear
EP0768684B1 (en) Current transformer with annular core to be built in a metal cast high-tension switchgear installation
EP1016104B1 (en) Transformer system provided with a decoupling system
DE69310424T2 (en) Connection block for medium voltage relays with current sensors
EP0603619B1 (en) High or Medium Voltage Switchgear with Voltage Transformer.
EP0041917B2 (en) Inductive-voltage transformer for a fully insulated, metal-enclosed high-voltage switchgear
EP0051715B1 (en) Protective device for high-voltage condenser bushings
DE19510659C1 (en) Ripple control transmitter coupling arrangement for power supply via power transformer
DE2617542A1 (en) COUPLING DEVICE FOR COUPLING TWO-WIRE CABLES INSULATED IN THE PHASE CABLE OF MEDIUM-VOLTAGE LINES FOR MESSAGE TRANSMISSION
EP0704870B1 (en) Multiple feed-through capacitor
WO1995024723A1 (en) Current transformer
DE19530163A1 (en) HV transformer and inductance lead-out- and bushing- connections - has housing with flanged coupling section having conductors within barrier elements
DE19740664A1 (en) Transformer arrangement with isolating device
DE9315570U1 (en) Toroidal transformer
DE2801021A1 (en) ELECTRIC CAPACITOR

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

17P Request for examination filed

Effective date: 19960308

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI SE

17Q First examination report despatched

Effective date: 19961211

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI SE

REF Corresponds to:

Ref document number: 174719

Country of ref document: AT

Date of ref document: 19990115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: URSULA RENFER-VONNEMANN

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59504564

Country of ref document: DE

Date of ref document: 19990128

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

Effective date: 19990211

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2126815

Country of ref document: ES

Kind code of ref document: T3

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Representative=s name: PATENTANWALTSBUERO URSULA RENFER-VONNEMANN; ROSWIESENSTRASSE 61; 8309 BIRCHWIL-NUERENSDORF (CH)

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: KATZAROV S.A.

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

Ref country code: CH

Payment date: 20130723

Year of fee payment: 19

Ref country code: SE

Payment date: 20130723

Year of fee payment: 19

Ref country code: DE

Payment date: 20130923

Year of fee payment: 19

Ref country code: BE

Payment date: 20130722

Year of fee payment: 19

Ref country code: AT

Payment date: 20130722

Year of fee payment: 19

Ref country code: ES

Payment date: 20130722

Year of fee payment: 19

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

Ref country code: FR

Payment date: 20130719

Year of fee payment: 19

Ref country code: GB

Payment date: 20130723

Year of fee payment: 19

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

Ref country code: IT

Payment date: 20130726

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59504564

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 174719

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140715

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

Effective date: 20140715

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150331

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: 20150203

Ref country code: LI

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

Effective date: 20140731

Ref country code: IT

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

Effective date: 20140715

Ref country code: CH

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

Effective date: 20140731

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59504564

Country of ref document: DE

Effective date: 20150203

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: 20140715

Ref country code: SE

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

Effective date: 20140716

Ref country code: AT

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

Effective date: 20140715

Ref country code: FR

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

Effective date: 20140731

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20150826

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

Ref country code: ES

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

Effective date: 20140716

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

Ref country code: BE

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

Effective date: 20140731