EP0755061B1 - Einpoliger Spannungswandler - Google Patents
Einpoliger Spannungswandler Download PDFInfo
- Publication number
- EP0755061B1 EP0755061B1 EP95111133A EP95111133A EP0755061B1 EP 0755061 B1 EP0755061 B1 EP 0755061B1 EP 95111133 A EP95111133 A EP 95111133A EP 95111133 A EP95111133 A EP 95111133A EP 0755061 B1 EP0755061 B1 EP 0755061B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- primary winding
- voltage transformer
- transformer 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.)
- Expired - Lifetime
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 one Magnetic core and a primary and arranged on this Secondary winding, between which an insulating layer is provided, the primary winding having a conductor has at one end to an outside High voltage contact is performed and one at the other end has a conductive and detachable connection to earth potential, which is connected to the earth potential in normal operation, and the secondary winding has a conductor, the ends of which are guided to external measuring contacts.
- From DE-A-2 506 937 is a generic Known voltage converter in which a coil connection of a High-voltage coil is detachably connected to a housing.
- this coil connection could be from the housing be solved to the high voltage coil over the entire Expansion of their winding under high voltage.
- the object of the invention is to reduce the assembly effort Reduce testing of switchgear.
- This task is the generic subject solved in that next to the other high voltage contact also the contact of the primary winding on the earth potential side is designed to withstand high voltages.
- the invention Construction allows only the Earth potential side connection of the primary winding separated becomes. Otherwise, the voltage converter remains fixed with the Switchgear connected.
- the converter is constructed so that the primary winding is off there are two partial windings, in particular the two Partial windings of the primary winding are essentially the same Have number of turns.
- the secondary winding is within the Primary winding arranged and outside by a Isolation layer separated from the primary winding, whereby preferably the insulation is an outer conductive layer has, which preferably also the two partial windings of the primary winding.
- 1 denotes a metal on all sides encapsulated voltage converter. That serves as metal encapsulation Housing 2 which is usually at ground potential 3.
- the actual one is located inside the housing 2 Voltage converter. It consists of a magnetic core 4, the is enclosed by a conductor of a secondary winding 5. The ends 6 and 7 of the conductor of the secondary winding are in a terminal box 8 out on contacts a and n.
- the secondary winding 5 is outside of one Insulation layer 9 enclosed as a supporting body
- Primary winding 10 is used.
- the current flow in the windings is in the usual way with a point or cross shown.
- Primary winding 10 consists of 2 partial windings 11 and 12, both of which have the same number of turns and are interconnected by conductors 13.
- Head 13 can for example as a metallization of the Insulation layer 9 may be formed.
- a conductor end 14 of the primary winding 10 is on the outside the high voltage contact A and another end 15 of the Conductor of the primary winding to the high-voltage contact N guided.
- This high-voltage contact N is in normal operation by means of a conductor 16 in the terminal box 8 and put on earth potential 3 there.
- the interior of the housing 2 is by means of an insulating compound 18 potted, this fixes the built-in parts.
- the full voltage can be connected to the high-voltage contact A in the test Test voltage applied. This is also due to the High voltage contact N on. The separation of the Voltage converter at high-voltage contact A is therefore not required advantageous. The entire switchgear can therefore be large Assembly effort to be checked for their dielectric strength.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Testing Relating To Insulation (AREA)
- Inverter Devices (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Control Of Stepping Motors (AREA)
- Dc-Dc Converters (AREA)
- Coils Or Transformers For Communication (AREA)
- Insulating Of Coils (AREA)
Description
- Figur 1
- schematisch einen Vertikalschnitt durch den erfindungsgemäßen Spannungswandler.
- 1
- Spannungswandler
- 2
- Gehäuse
- 3
- Erdpotential
- 4
- Magnetkern
- 5
- Sekundärwicklung
- 6
- Leiterende
- 7
- Leiterende
- 8
- Klemmkasten
- 9
- Isolationsschicht
- 10
- Primärwicklung
- 11
- Teilwicklung
- 12
- Teilwicklung
- 13
- Leiter
- 14
- Leiterende
- 15
- Leiterende
- 16
- Leiter
- 18
- Isoliermasse 6
- a
- Kontakt
- n
- Kontakt
- A
- Hochspannungskontakt
- N
- erdpotentialseitiger Hochspannungskontakt
Claims (10)
- Spannungswandler, insbesondere für Hoch- und Mittelspannungsschaltanlagen, mit einem Magnetkern (4) und einer auf diesem angeordneten Primär- (10) sowie Sekundärwicklung (5), zwischen denen eine Isolierschicht (9) vorgesehen ist, wobei die Primärwicklung (10) einen Leiter aufweist, der an einem Ende (14) an einen außen liegenden Hochspannungskontakt (A) geführt ist und am anderen Ende (15) eine leitende und lösbare Verbindung (16) zum Erdpotential (3) aufweist, die im Normalbetrieb mit dem Erdpotential (3) verbunden ist, und wobei die Sekundärwicklung (5) einen Leiter aufweist, dessen Enden an außenliegende Meßkontakte (a, n) geführt sind, dadurch gekennzeichnet, daß neben dem anderen Hochspannungskontakt (A) auch der erdpotentialseitige Kontakt (N) der Primärwicklung (10) hochspannungsfest ausgebildet ist.
- Spannungswandler nach Anspruch 1, dadurch gekennzeichnet, daß er einen Klemmkasten (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.
- Spannungswandler nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Primärwicklung (10) aus zwei Teilwickungen (11, 12) besteht.
- Spannungswandler nach Anspruch 3, dadurch gekennzeichnet, daß die beiden Teilwicklungen (11, 12) der Primärwicklung (10) im wesentlichen gleiche Windungszahlen aufweisen.
- Spannungswandler nach einem der Ansprüche 1 bis 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.
- Spannungswandler nach Anspruch 5, dadurch gekennzeichnet, daß die Isolation (9) eine äußere leitende Schicht aufweist, die vorzugsweise auch die beiden Teilwicklungen (11, 12) der Primärwicklung (10) leitend verbindet.
- Spannungswandler nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß die Isolationsschicht (9) eine Durchschlagspannungsfestigkeit aufweist, die der Prüfspannung entspricht.
- Spannungswandler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er mit Isoliermasse (18) vergossen ist.
- Spannungswandler nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Vergußmasse (18) außen eine leitende Schicht (2), z.B. eine Metallisierung oder ein Metallgehäuse (2) aufweist, die bzw. das mit dem Erdpotential (3) verbunden ist.
- Verfahren zur Prüfung eines Spannungswandlers nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der als Hochspannungskontakt ausgebildete erdpotentialseitige Kontakt (N) der Primärwicklung (10) von der leitenden Verbindung (16) zum Erdpotential (3) getrennt und mit einer prüfspannungsfesten Kappe abgedeckt wird.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT95111133T ATE174719T1 (de) | 1995-07-15 | 1995-07-15 | Einpoliger spannungswandler |
DE59504564T DE59504564D1 (de) | 1995-07-15 | 1995-07-15 | Einpoliger Spannungswandler |
EP95111133A EP0755061B1 (de) | 1995-07-15 | 1995-07-15 | Einpoliger Spannungswandler |
ES95111133T ES2126815T3 (es) | 1995-07-15 | 1995-07-15 | Transformador de tension unipolar. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95111133A EP0755061B1 (de) | 1995-07-15 | 1995-07-15 | Einpoliger Spannungswandler |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0755061A1 EP0755061A1 (de) | 1997-01-22 |
EP0755061B1 true EP0755061B1 (de) | 1998-12-16 |
Family
ID=8219436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95111133A Expired - Lifetime EP0755061B1 (de) | 1995-07-15 | 1995-07-15 | Einpoliger Spannungswandler |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0755061B1 (de) |
AT (1) | ATE174719T1 (de) |
DE (1) | DE59504564D1 (de) |
ES (1) | ES2126815T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102360873A (zh) * | 2011-06-14 | 2012-02-22 | 中山市泰峰电气有限公司 | 一种两芯柱电压互感器 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59812131D1 (de) * | 1997-09-16 | 2004-11-18 | Kg Ritz Messwandler Gmbh & Co | Wandleranordnung mit trenneinrichtung |
DE102007045388A1 (de) * | 2007-09-18 | 2009-03-19 | Siemens Ag | Messwandleranordnung mit einer Oberspannungswicklung sowie Verfahren zur Herstellung einer Messwandleranordnung mit einer Oberspannungswicklung |
CN101930838A (zh) * | 2010-08-12 | 2010-12-29 | 浙江天际互感器有限公司 | 电子式电压互感器 |
EP3288050B1 (de) * | 2015-04-23 | 2021-11-10 | ABB Schweiz AG | Spannungswandlerisolierungsvorrichtung und gasisolierte schaltanlage |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1061430B (de) * | 1958-08-07 | 1959-07-16 | Koch & Sterzel Kommanditgesell | Transformator |
DE1256783B (de) * | 1963-04-11 | 1967-12-21 | Siemens Ag | Verfahren zur Herstellung von Giessharzmesswandlern |
SE387468B (sv) * | 1974-03-01 | 1976-09-06 | O Ottesen | Induktiv spenningstransformator |
DE4338537A1 (de) * | 1993-11-11 | 1995-05-18 | Sachsenwerk Ag | Induktiver elektrischer Wandler für Mittelspannung |
-
1995
- 1995-07-15 DE DE59504564T patent/DE59504564D1/de not_active Expired - Lifetime
- 1995-07-15 EP EP95111133A patent/EP0755061B1/de not_active Expired - Lifetime
- 1995-07-15 ES ES95111133T patent/ES2126815T3/es not_active Expired - Lifetime
- 1995-07-15 AT AT95111133T patent/ATE174719T1/de active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102360873A (zh) * | 2011-06-14 | 2012-02-22 | 中山市泰峰电气有限公司 | 一种两芯柱电压互感器 |
CN102360873B (zh) * | 2011-06-14 | 2013-01-16 | 中山市泰峰电气有限公司 | 一种两芯柱电压互感器 |
Also Published As
Publication number | Publication date |
---|---|
DE59504564D1 (de) | 1999-01-28 |
ATE174719T1 (de) | 1999-01-15 |
ES2126815T3 (es) | 1999-04-01 |
EP0755061A1 (de) | 1997-01-22 |
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