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EP3320547B1 - Électrode en forme de jante et ensemble enroulement d'un transformateur de mesure - Google Patents

Électrode en forme de jante et ensemble enroulement d'un transformateur de mesure Download PDF

Info

Publication number
EP3320547B1
EP3320547B1 EP16750147.7A EP16750147A EP3320547B1 EP 3320547 B1 EP3320547 B1 EP 3320547B1 EP 16750147 A EP16750147 A EP 16750147A EP 3320547 B1 EP3320547 B1 EP 3320547B1
Authority
EP
European Patent Office
Prior art keywords
transducer
electrode
winding
rim
middle section
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.)
Active
Application number
EP16750147.7A
Other languages
German (de)
English (en)
Other versions
EP3320547A1 (fr
Inventor
Sebastian BAEHR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens Energy Global 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 Siemens Energy Global GmbH and Co KG filed Critical Siemens Energy Global GmbH and Co KG
Publication of EP3320547A1 publication Critical patent/EP3320547A1/fr
Application granted granted Critical
Publication of EP3320547B1 publication Critical patent/EP3320547B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/288—Shielding
    • H01F27/2885—Shielding with shields or electrodes

Definitions

  • the invention relates to a winding arrangement of a measuring transducer and in particular a rim electrode of such a winding arrangement.
  • the invention relates to measuring transducers designed as voltage converters for measuring electrical voltages and / or for protection against high electrical voltages, as well as measuring transducers which are a combination of such voltage converters with current converters for measuring electrical currents and / or for protecting against high electrical currents.
  • Such transducers such as. B. from the DE 25 24 547 A1 known, transform electrical voltages and currents according to the principle of a transformer and for this purpose have a winding arrangement with two different transducer windings.
  • the invention is based on the object of specifying an improved electrode of a winding arrangement of a measuring transducer, an improved winding arrangement of a measuring transducer and a method for their production as well as an improved measuring transducer.
  • the rim electrode enables, on the one hand, the positioning and introduction of a transducer winding of the winding arrangement by applying the transducer winding to the central electrode section and, on the other hand, shielding the winding arrangement from electrical fields, in particular at the ends of the winding arrangement, by means of the shielding collar.
  • the rim electrode has two functions that are implemented by separate components in conventional winding arrangements, namely by a rim for positioning and introducing a transducer winding and by shielding electrodes for shielding electrical fields. This advantageously reduces the number of components of the winding arrangement and thereby also the component costs, and simplifies and shortens the assembly of the winding arrangement.
  • each shielding collar is bent outwards by more than 180 degrees with respect to the central electrode section and is designed to be open.
  • the invention provides that the rim electrode consists of two electrode halves which each form one half of the central electrode section and each shielding collar.
  • the rim electrode is made of a metallic material, for example aluminum.
  • a winding arrangement according to the invention of a measuring transducer comprises a first measuring transducer winding which runs around a winding axis, a rim electrode according to the invention which is arranged around the first measuring transducer winding so that an inner surface of the electrode center section surrounds an outer surface of the first measuring transducer winding, and a second measuring transducer winding which surrounds an outer surface of the electrode center portion extends around.
  • the winding arrangement also has a wound tube around which the first transducer winding runs.
  • a winding tube advantageously simplifies the positioning and assembly of the winding arrangement, in particular around a core section of a transducer core.
  • the inner surface of the central electrode section of the rim electrode is materially bonded to the outer surface of the first transducer winding.
  • the second transducer winding is then placed around the outer surface of the central electrode section of the rim electrode.
  • the inner surface of the electrode center section is cohesively bonded to the outer surface of the electrode, for example with an adhesive first transducer winding connected.
  • a binding agent is applied to the outer surface of the first transducer winding and / or to the inner surface of the electrode center section and the inner surface of the electrode center section is bonded to the outer surface of the first transducer winding by heating the binder.
  • the two electrode halves of a two-part rim electrode in particular do not need to be connected to one another, since their positions are fixed by the material connection with the first transducer winding.
  • Such a transducer already has the advantages above due to the design with a winding arrangement according to the invention.
  • Figure 1 shows a sectional view of a measuring transducer 1.
  • the measuring transducer 1 is designed as a gas-insulated combined voltage and current transformer.
  • the transducer 1 comprises a transducer housing 3 with a housing head 5, a housing base 7 and an insulator 9 running between the housing head 5 and the housing base 7 Housing head opening surrounds, constricted.
  • the insulator 9 adjoins the housing head end 11.
  • the insulator 9 is designed essentially as a tube which has insulator ribs 13 on its outside, which run in a ring around a longitudinal axis of the insulator 9.
  • the housing base 7 closes an end of the insulator 9 facing away from the housing head 5.
  • the transducer housing 3 is designed to be gas-tight for receiving an insulating gas such as sulfur hexafluoride.
  • the housing head 5 has a pressure relief valve 15 through which insulating gas can be discharged from the transducer housing 3 when the pressure in the transducer housing 3 exceeds a pressure threshold value.
  • a conductor bushing 17 is arranged on the housing base 7, through which electrical conductors are led from the interior of the transducer housing 3 to the outside.
  • a terminal box 19 for contacting the conductors guided through the conductor bushing 17 is arranged on the conductor bushing 17.
  • an active part unit 21 with a winding arrangement 22 according to the invention and a current converter unit 23 are arranged as a voltage converter, the current converter unit 23 being arranged between the active part unit 21 and the insulator 9.
  • the active part unit 21 and the winding arrangement 22 are explained below with reference to FIG Figures 2 to 5 described in more detail.
  • the current transformer unit 23 comprises a primary conductor 25 in the form of a busbar with primary conductor connections 27 arranged outside of the transducer housing 3 and a current transformer winding arrangement 29, known per se and therefore not shown in detail, with a secondary current transformer winding running in a ring around the primary conductor 25.
  • a secondary transducer winding 41 of the winding arrangement 22 and the secondary current transformer winding of the current transformer winding arrangement 29 are each connected to connections of the terminal box 19 via connecting lines (not shown), the connecting lines through tubular shielding sleeves 31 arranged in the transducer housing 3 and through the conductor lead-through 17 to the terminal box 19 are led.
  • FIGS. 2 and 3 show the active part unit 21 of the transducer 1. It shows Figure 2 a perspective view and Figure 3 shows a perspective sectional illustration of the active part unit 21.
  • the active part unit 21 comprises a transducer core 33, a press frame 35 and the winding arrangement 22.
  • the winding arrangement 22 comprises a wound tube 37, a primary first transducer winding 39, the secondary second transducer winding 41, a rim electrode 43 according to the invention and four anti-rotation devices 45.
  • the transducer core 33 is designed as an annular laminated core made up of laminated laminations which are pressed together by the press frame 35.
  • the press frame 35 is U-shaped with two legs running parallel to one another and a leg connection connecting the two legs.
  • the press frame 35 consists of two press frame halves 35.1, 35.2, which each form one half of each leg and the leg connection and lie on different sides of a plane of symmetry in which the press frame halves 35.1, 35.2 abut one another.
  • the leg ends of each leg are designed for fastening the press frame 35 in the housing head 5 of the transducer 1.
  • each press frame half 35.1, 35.2 has a connection opening 47 at each leg end through which a connecting element, for example a screw, for fastening the leg end to a corresponding frame holder 49 of the housing head 5 (see Figure 1 ) to be led.
  • Each clamping element 51 is rod-like and has at least one end passed through a press frame half 35.1, 35.2 onto which a screw nut 53 is screwed to press the press frame half 35.1, 35.2 onto the transducer core 33.
  • the winding tube 37 surrounds a core section 34 of the transducer core 33, which runs between the legs of the press frame 35 and through frame recesses 55 in the press frame halves 35.1, 35.2.
  • the winding tube 37 supports the primary transducer winding 39 surrounding a central portion of the winding tube 37, the rim electrode 43 surrounding the primary transducer winding 39, and the secondary transducer winding 41 surrounding the rim electrode 43.
  • the rim electrode 43 has an electrode center portion 57, the is designed as a hollow circular cylinder, and two opposing shielding collars 59. Each shielding collar 59 forms one end of the rim electrode 43 and is designed to shield electrical fields from the central electrode section 57 outwardly by more than 180 degrees, preferably by more than 270 degrees.
  • the rim electrode 43 consists of two identical electrode halves 43.1, 43.2 (see Figures 4 and 5 ), which each form one half of the electrode center section 57 and each shielding collar 59.
  • the rotation locks 45 connect the winding tube 37 to the press frame 35 and prevent rotation of the winding tube 37 about its longitudinal axis.
  • Each end of the winding tube 37 is connected to each of the two press frame halves 35.1, 35.2 by a respective anti-rotation lock 45, so that the winding tube 37 is connected to the press frame 35 by a total of four anti-rotation locks 45.
  • Each anti-rotation device 45 connects the winding tube 37 to the press frame 35 by means of a curing compound in a manner not described in detail here.
  • Figure 4 shows a perspective view of the winding arrangement 22 of the active part unit 21 formed by the winding tube 37, the transducer windings 39, 41 and the electrode halves 43.1, 43.2 of the rim electrode 43.
  • FIG. 5 shows a perspective view of the rim electrode 43.
  • the two electrode halves 43.1, 43.2 are identical and can be placed precisely against one another in a plane in which a longitudinal axis of the rim electrode 43 runs, so that they jointly form the electrode center section 57 and the two shielding collars 59.
  • Each shielding collar 59 adjoins the central electrode section 57, the shielding collar 59 in the area directly adjoining the central electrode section 57 being initially bent inwardly opposite the central electrode section 57 and the shielding collar 59 subsequently being designed to be bent outward so that the shielding collar 59 has the shape a toroidal jacket, from which a strip extending annularly around the electrode center section 57 is cut out.
  • the rim electrode 43 is made of a metallic material, for example aluminum, for shielding electrical fields.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Transformers For Measuring Instruments (AREA)

Claims (11)

  1. Electrode (43) en forme de jante d'un ensemble (22) d'enroulement d'un transducteur (1) de mesure, l'électrode (43) en forme de jante comprenant
    - une partie (57) médiane d'électrode cylindrique creuse,
    - et deux collets (59) annulaires de blindage formant des extrémités opposées de l'électrode (43) en forme de jante,
    - dans laquelle chaque collet (59) de blindage se raccorde à la partie (57) médiane de l'électrode et est de conformation incurvée vers l'extérieur par rapport à la partie (57) médiane de l'électrode,
    caractérisée en ce que
    l'électrode (43) en forme de jante est constituée de deux moitiés (43.1, 43.2) d'électrode, qui forment chacune une moitié de la partie (57) médiane de l'électrode et de chaque collet (59) de blindage.
  2. Electrode (43) en forme de jante suivant la revendication 1,
    caractérisée en ce que
    chaque collet (59) de blindage est courbé vers l'extérieur de plus de 180 degrés par rapport à la partie (57) médiane de l'électrode et est de conformation ouverte.
  3. Electrode (43) en forme de jante suivant l'une des revendications précédentes,
    caractérisée en ce que
    l'électrode (43) en forme de jante est en un matériau métallique.
  4. Electrode (43) en forme de jante suivant l'une des revendications précédentes,
    caractérisée en ce que
    l'électrode (43) en forme de jante est en aluminium.
  5. Ensemble (22) d'enroulement d'un transducteur (1) de mesure, l'ensemble (22) d'enroulement comprenant
    - un premier enroulement (39) de transducteur de mesure, qui s'étend autour d'un axe d'enroulement,
    - une électrode (43) en forme de jante suivant l'une des revendications précédentes, qui est disposée autour du premier enroulement (39) de transducteur de mesure de manière à ce qu'une surface intérieure de la partie (57) médiane de l'électrode entoure une surface extérieure du premier enroulement (39) du transducteur de mesure,
    - et un deuxième enroulement (41) de transducteur de mesure qui s'étend autour d'une surface extérieure de la partie (57) médiane de l'électrode.
  6. Ensemble (22) d'enroulement suivant la revendication 5,
    caractérisé
    par un tube (37) qui s'étend autour du premier enroulement (39) du transducteur de mesure.
  7. Procédé de fabrication d'un ensemble (22) d'enroulement suivant la revendication 5 ou 6, dans lequel on relie la surface intérieure de la partie (57) médiane de l'électrode (43) en forme de jante à coopération de matière avec la surface extérieure du premier enroulement (39) du transducteur de mesure et ensuite on met le deuxième enroulement (41) du transducteur de mesure autour de la surface extérieure de la partie (57) médiane de l'électrode (43) en forme de jante.
  8. Procédé suivant la revendication 7,
    caractérisé en ce que
    l'on relie la surface intérieure de la partie (57) médiane de l'électrode par une colle à coopération de matière à la surface extérieure du premier enroulement (39) du transducteur de mesure.
  9. Procédé suivant la revendication 7 ou 8,
    caractérisé en ce que
    l'on dépose un liant sur la surface extérieure du premier enroulement (39) du transducteur de mesure ou/et sur la surface intérieure de la partie (57) médiane de l'électrode et on relie à coopération de matière la surface intérieure de la partie (57) médiane de l'électrode par chauffage du liant à la surface extérieure du premier enroulement (39) du transducteur de mesure.
  10. Transducteur (1) de mesure ayant un ensemble (22) d'enroulement suivant la revendication 5 ou 6.
  11. Transducteur (1) de mesure suivant la revendication 10, caractérisé par
    un noyau (33) de transducteur de mesure, ayant une partie (34) de noyau qui est disposée autour de l'ensemble (22) d'enroulement.
EP16750147.7A 2015-09-03 2016-08-03 Électrode en forme de jante et ensemble enroulement d'un transformateur de mesure Active EP3320547B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015216860.3A DE102015216860A1 (de) 2015-09-03 2015-09-03 Felgenelektrode und Wicklungsanordnung eines Messwandlers
PCT/EP2016/068499 WO2017036715A1 (fr) 2015-09-03 2016-08-03 Électrode en forme de jante et ensemble enroulement d'un transformateur de mesure

Publications (2)

Publication Number Publication Date
EP3320547A1 EP3320547A1 (fr) 2018-05-16
EP3320547B1 true EP3320547B1 (fr) 2021-04-14

Family

ID=56618153

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16750147.7A Active EP3320547B1 (fr) 2015-09-03 2016-08-03 Électrode en forme de jante et ensemble enroulement d'un transformateur de mesure

Country Status (5)

Country Link
EP (1) EP3320547B1 (fr)
CN (1) CN107924753A (fr)
DE (1) DE102015216860A1 (fr)
ES (1) ES2877526T3 (fr)
WO (1) WO2017036715A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016216499B4 (de) * 2016-09-01 2018-04-19 Siemens Aktiengesellschaft Spannungswandlereinheit mit einem Aktivteilgehäuse
DE102019214368B4 (de) * 2019-09-20 2023-02-02 Siemens Energy Global GmbH & Co. KG Messwandleranordnung mit einem Spannungswandler und einem Stromwandler
DE102020201100A1 (de) * 2020-01-30 2021-08-05 Siemens Aktiengesellschaft Spannungswandler

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE533273C (de) * 1929-11-16 1931-09-11 Koch & Sterzel Akt Ges Messwandlersatz, bestehend aus einem zusammengebauten Strom- und Spannungswandler
CH218921A (de) * 1940-08-19 1942-01-15 Bbc Brown Boveri & Cie Hochspannungsstromwandler.
DE967656C (de) * 1955-08-30 1957-12-05 Koch & Sterzel Ag Kombinierter Strom- und Spannungswandler
DE2325450A1 (de) * 1973-05-17 1974-11-21 Siemens Ag Einleiterwandler fuer hochspannungsschaltanlagen
DE2452056B2 (de) * 1974-11-02 1978-02-09 Messwandler-Bau Gmbh, 8600 Bamberg Induktiver spannungswandler fuer eine mittels isoliergas vollisolierte, metallgekapselte hochspannungsschaltanlage
DE2524547C2 (de) * 1975-05-30 1989-09-21 Siemens AG, 1000 Berlin und 8000 München Einleiterwandler für metallgekapselte Hochspannungsschaltanlage
JPH0646611B2 (ja) * 1984-12-26 1994-06-15 日新電機株式会社 変圧器
JPS61201410A (ja) * 1985-03-04 1986-09-06 Toshiba Corp ガス絶縁計器用変圧器
DE3737989C1 (de) * 1987-11-09 1989-05-11 Messwandler Bau Ag Hochspannungsspannungswandler
CH698970A1 (de) * 2008-06-04 2009-12-15 Trench Switzerland Ag Hochspannungs-Messwandler mit flexibler Isolierung.
CN103077811B (zh) * 2013-02-27 2015-07-08 江苏盛华电气有限公司 一种高压变压器绕组的屏蔽环及其加工方法
CN103730247B (zh) * 2013-12-17 2016-04-20 国家电网公司 一种全屏蔽高压隔离型电压互感器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3320547A1 (fr) 2018-05-16
WO2017036715A1 (fr) 2017-03-09
CN107924753A (zh) 2018-04-17
DE102015216860A1 (de) 2017-03-09
ES2877526T3 (es) 2021-11-17

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