EP3408856A1 - Bobine de self à air de type à transmission de courant continu haute tension et son procédé de fabrication - Google Patents

Bobine de self à air de type à transmission de courant continu haute tension et son procédé de fabrication

Info

Publication number
EP3408856A1
EP3408856A1 EP17720399.9A EP17720399A EP3408856A1 EP 3408856 A1 EP3408856 A1 EP 3408856A1 EP 17720399 A EP17720399 A EP 17720399A EP 3408856 A1 EP3408856 A1 EP 3408856A1
Authority
EP
European Patent Office
Prior art keywords
layer
air
air throttle
hvdc
throttle coil
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.)
Withdrawn
Application number
EP17720399.9A
Other languages
German (de)
English (en)
Inventor
Peter GRIEBLER
Steffen Lang
Stephan Rauchenzauner
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 AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP3408856A1 publication Critical patent/EP3408856A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • 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
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/36—Electric or magnetic shields or screens
    • H01F27/363—Electric or magnetic shields or screens made of electrically conductive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00
    • H01F37/005—Fixed inductances not covered by group H01F17/00 without magnetic core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/041—Printed circuit coils
    • H01F41/043—Printed circuit coils by thick film techniques
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • 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
    • H01F27/32—Insulating of coils, windings, or parts thereof
    • H01F2027/329—Insulation with semiconducting layer, e.g. to reduce corona effect

Definitions

  • HVDC high-voltage direct-current power transmission systems
  • the conductive structure formed on the surface of the HVDC component may cause an electrical flashover, in the worst case, for example, a total failure of an HVDC choke or HVDC choke may occur.
  • Sprayed polyurethane paint This polyurethane paint is sanded to prepare the adhesive surface. Subsequently, the film coated with a semiconductive layer is adhered to the ground polyurethane coating surface. In a final process step, a cover layer is applied for protection. The material for this
  • Cover layer may be a silicone that crosslinks at room temperature (RTV).
  • RTV room temperature
  • the application of the mixed fabric tape is both a labor-intensive and a material-intensive process step.
  • the self-adhesive film is expensive because the film must withstand the ultraviolet radiation over a long period of use.
  • the sanding of the paint surface required for the gluing process is also labor-intensive and also causes harmful dust.
  • Coating surface is no longer sanded, also attracts no grinding dust, which could be harmful to health.
  • the manufacturing process is overall more cost effective. It has been found that with a uniformly applied shielding layer having a thickness of about 80 ym to 120 ym, the "black spot phenomenon" can be efficiently counteracted. Such a shielding layer can be Produce by spray coating easily and with little effort.
  • This semiconductive layer may be improved by suitable fillers, i. conductive particles are given within wide limits.
  • Conductive particles may be formed by dielectric, platelet-shaped substrates, each enveloped by an electrically conductive layer.
  • Suitable materials for a substrate are, for example, natural or synthetic mica,
  • the electrically conductive layer of a particle may consist of a doped metal oxide. With regard to low production costs, it may be advantageous if the sputtered in the spraying material
  • Suitable as a polymer is an epoxy resin or a polyurethane or a silicone or a polyester.
  • the filler is a doped metal oxide or a doped silicon carbide.
  • a filler has
  • Antimony doped tin oxide is composed.
  • the inventive method for producing a HVDC air throttle coil is characterized in that in a first process step, a concentric
  • FIG. 1 shows a HVDC air throttle coil according to the invention in a side view
  • FIG. 2 shows a detailed representation drawn from FIG. 1, with a view of the upper end side of the HVDC air throttle coil, as a result of which a part of the winding arrangement can be seen in a three-dimensional representation
  • FIG. 3 shows the electrostatic shielding of the HVDC
  • FIG. 4 is a sectional view through that in FIG. 2
  • Layer structure is shown enlarged on the outer winding layer.
  • FIG. 1 shows an HVDC air throttle coil 1 as it is
  • HVDC high-voltage direct current
  • the air throttle coil 1 is at a high electrical potential to earth, for example, 500-800 KV and carries a current of up to 4000 A.
  • the voltage drop across the air throttle coil 1 i. between the electrical terminals 11 and 12 is lower in comparison and corresponds approximately to the residual ripple of the voltage to be smoothed, usually about 100 V to a few KV.
  • the air throttle coil 1 is provided with an electrostatic shield.
  • Electrostatic shielding has hitherto been realized by a self-adhesive, electrically semiconducting film, which is now replaced according to the invention by a layer 22 which is sprayed directly onto the outer winding layer, and is explained in more detail below.
  • Figure 2 shows a torn from Figure 1
  • the electrostatic shield 17 is the
  • HVDC air choke drawn out separately. It consists essentially of the wood cylindrical layer 22 and the front side of the circumference enclosing collector electrodes 19, 20.
  • the layer 22 was prepared by spraying. With A spray gun became a semi-conductive polyurethane paint with an air pressure of 3-4 bar: in a spray gun
  • Winding layer 4 ⁇ sprayed on. During the injection process, the distance between the spray gun axis 18 of the coil 1 was kept constant. In this way, by means of an automated spraying device on the outer peripheral surface of the winding layer 4 ⁇ an electrically semiconductive
  • Coating 22 produce a uniform
  • the coating 22 has collector electrodes 19, 20 running around the circumference at the front side.
  • Collector electrodes 19, 20 are connected to the electrical
  • the semiconductive layer 22 comprises a polymeric material containing a filler, in the form of electrically semiconductive solid particles embedded in the polymeric material.
  • the electrical conductivity of the particles can be varied in each case by doping their material within wide limits. By doping or
  • a resistive coating 22 can be made with a surface resistance in a range between 10 9 to 10 14 ohms / square.
  • the layer 22 acts as said electrostatic shielding. With the electrically semiconducting layer 22 it is achieved that the charge carriers impinging on the air throttle coil 1 from the outside space 9 are "dissipative" in each case
  • Figure 4 shows a sectional view through the winding arrangement shown in Figure 2, wherein the layer structure on the outer winding layer 4 ⁇ is shown enlarged.
  • the lateral surface 21 of the outer winding layer 4 ⁇ is coated with the semiconductive spray coating 22.
  • the spray coating 22 contains a filler.
  • particles of the filler are designated by the reference numeral 23
  • the filler is made of particles 23
  • composition of the present embodiment is composed of different materials.
  • the composition of the present embodiment is composed of the same materials.
  • Protective or cover layer 24 covered which consists of a RT silicone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Insulating Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne une bobine de self à air (1) de type à transmission de courant continu haute tension, comprenant : au moins une couche d'enroulement (2-4, 4') concentrique, des connecteurs électriques (11, 12) étant formés au niveau des extrémités correspondantes, un blindage électrostatique (17) comportant : une couche (22) de matériau à dissipation électrostatique, lequel présente une résistance superficielle comprise entre 109 et 1014 Ohm/carré, la couche (22) présentant, sur au moins une extrémité, une électrode collectrice (19, 20) s'étendant sensiblement sur sa circonférence en vue d'une connexion à l'un des connecteurs (11, 12), ladite couche (22) se présentant sous la forme d'un revêtement pulvérisé sur une surface extérieure (21) d'une couche d'enroulement (4') externe.
EP17720399.9A 2016-04-22 2017-04-20 Bobine de self à air de type à transmission de courant continu haute tension et son procédé de fabrication Withdrawn EP3408856A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50358/2016A AT518664B1 (de) 2016-04-22 2016-04-22 HGÜ-Luftdrosselspule und Verfahren zur Herstellung
PCT/EP2017/059411 WO2017182577A1 (fr) 2016-04-22 2017-04-20 Bobine de self à air de type à transmission de courant continu haute tension et son procédé de fabrication

Publications (1)

Publication Number Publication Date
EP3408856A1 true EP3408856A1 (fr) 2018-12-05

Family

ID=58645028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17720399.9A Withdrawn EP3408856A1 (fr) 2016-04-22 2017-04-20 Bobine de self à air de type à transmission de courant continu haute tension et son procédé de fabrication

Country Status (7)

Country Link
US (1) US11562853B2 (fr)
EP (1) EP3408856A1 (fr)
CN (1) CN109074949B (fr)
AT (1) AT518664B1 (fr)
BR (1) BR112018071262B1 (fr)
CA (1) CA3019271C (fr)
WO (1) WO2017182577A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10504646B2 (en) * 2017-06-29 2019-12-10 Siemens Aktiengesellschaft Noise attenuating barrier for air-core dry-type reactor
DE102018213661A1 (de) * 2018-08-14 2020-02-20 Siemens Aktiengesellschaft Wicklungsanordnung mit Feldglättung und Armierung
EP3770931A1 (fr) * 2019-07-23 2021-01-27 Solaredge Technologies Ltd. Appareil de transformateur
AT523998B1 (de) 2020-07-07 2023-11-15 Coil Holding Gmbh HVDC-Luftdrosselspule
RU210272U1 (ru) * 2022-02-04 2022-04-05 Сергей Александрович Моляков Узел крепления изолирующей рейки крестовины с ограничительными торцевыми элементами

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GB1156369A (en) 1966-04-08 1969-06-25 Gen Electric Coated Electrostatic Shields for Electrical Apparatus
US4137515A (en) * 1974-09-19 1979-01-30 Matsushita Electric Industrial Co., Ltd. Synthetic resin packed coil assembly
JPS5895808A (ja) * 1981-12-02 1983-06-07 Toshiba Chem Corp 整列巻きコイルのワニス滴下含浸処理方法
CN2192946Y (zh) * 1994-04-05 1995-03-22 马春秋 新型干式空心户外电抗器
DE4438187A1 (de) * 1994-10-26 1996-05-02 Abb Management Ag Elektrischer Leiter für Wicklungen mit verteiltem Überspannungsschutz
FR2784787B1 (fr) * 1998-10-20 2002-10-11 France Transfo Sa Transformateur sec de puissance ou de distribution de l'energie electrique
DE10024439A1 (de) * 2000-05-19 2001-12-06 Koppe Franz Verguss- oder Einbettmasse mit elektromagnetischen Abschirmeigenschaften zur Herstellung elektronischer Bauteile
ATE476470T1 (de) * 2002-06-28 2010-08-15 Merck Patent Gmbh Härtung und trocknung von lacksystemen und druckfarben
US9553499B2 (en) * 2004-06-17 2017-01-24 Edward Handy Distributed gap inductor potting apparatus and method of use thereof
DE102004048646B4 (de) * 2004-10-04 2006-08-10 Siemens Ag Supraleitende Strombegrenzereinrichtung vom resistiven Typ mit bandförmiger Hoch-Tc-Supraleiterbahn
CN2919481Y (zh) 2006-06-15 2007-07-04 武汉高压研究所 单级结构765kV电磁式标准电压互感器
AT507164B1 (de) 2008-04-18 2010-03-15 Trench Austria Gmbh Elektrostatische abschirmung für einen hgü-bauteil
WO2010146053A1 (fr) 2009-06-16 2010-12-23 Basf Se Composés précurseurs thermolabiles permettant d'améliorer les points de contact interparticulaires et de remplir les espaces intermédiaires dans des couches de particules d'oxyde métallique semi-conductrices
CN201765936U (zh) * 2009-08-06 2011-03-16 张志杰 一种开启式电流互感器
CN201638663U (zh) * 2010-02-09 2010-11-17 桂林五环电器制造有限公司 分段式空心并联电抗器
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EP2866235B1 (fr) * 2013-10-22 2019-09-25 ABB Schweiz AG Transformateurs haute tension
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DE102014213944A1 (de) * 2014-07-17 2016-01-21 Siemens Aktiengesellschaft Elektrische Schaltvorrichtung für Mittel- und/oder Hochspannungsanwendungen
CN204792370U (zh) * 2015-07-10 2015-11-18 珠海拓锐德电子科技有限公司 一种环形变压器
DE102016202385A1 (de) 2016-02-17 2017-08-17 Siemens Aktiengesellschaft Kompakter Trockentransformator mit einer elektrischen Wicklung und Verfahren zur Herstellung einer elektrischen Wicklung
DE102016202391A1 (de) 2016-02-17 2017-08-31 Siemens Aktiengesellschaft Kompakter Trockentransformator mit einer elektrischen Wicklung und Verfahren zur Herstellung einer elektrischen Wicklung

Also Published As

Publication number Publication date
WO2017182577A1 (fr) 2017-10-26
CN109074949B (zh) 2022-02-18
BR112018071262B1 (pt) 2023-05-09
BR112018071262A8 (pt) 2023-05-02
AT518664B1 (de) 2017-12-15
AT518664A4 (de) 2017-12-15
CN109074949A (zh) 2018-12-21
CA3019271C (fr) 2024-04-23
US20190096570A1 (en) 2019-03-28
US11562853B2 (en) 2023-01-24
CA3019271A1 (fr) 2017-10-26
BR112018071262A2 (pt) 2019-02-05

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