EP2973621B1 - Wicklungslagen-steigungsausgleich für eine luftdrosselspule - Google Patents

Wicklungslagen-steigungsausgleich für eine luftdrosselspule Download PDF

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Publication number
EP2973621B1
EP2973621B1 EP14707078.3A EP14707078A EP2973621B1 EP 2973621 B1 EP2973621 B1 EP 2973621B1 EP 14707078 A EP14707078 A EP 14707078A EP 2973621 B1 EP2973621 B1 EP 2973621B1
Authority
EP
European Patent Office
Prior art keywords
star
winding layer
sheets
slot
layer pitch
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
EP14707078.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2973621A1 (de
Inventor
Otto HASLEHNER
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 AG
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2973621A1 publication Critical patent/EP2973621A1/de
Application granted granted Critical
Publication of EP2973621B1 publication Critical patent/EP2973621B1/de
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    • 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
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/006—Details of transformers or inductances, in general with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance
    • 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
    • H01F27/2823—Wires
    • 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
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/08—Fixed transformers not covered by group H01F19/00 characterised by the structure without magnetic core

Definitions

  • the present invention relates to a winding layer pitch compensation for an air throttle coil having at least two concentric, radially spaced winding layers.
  • Air throttle coils such as known from WO2009 / 126977 , are used in energy supply networks and are - in contrast to oil-insulated coils - "dry-insulated” inductors, in which the insulation is accomplished by solid insulation and sufficient creepage and clearance and which usually also contain no ferromagnetic core, ie their central air space is free ,
  • the concentric winding layers of the air throttle coil are each held at their upper and lower axial ends by a holding star, which is composed of a plurality of star-shaped radially arranged arms, so-called star blades.
  • a holding star which is composed of a plurality of star-shaped radially arranged arms, so-called star blades.
  • star blades instead of a one-piece holding star, it is also possible in each case to use a large number of individual star leaves, which lie only in the area below and above the winding layers in order to save star-blade material.
  • the opposing holding stars or star blades are biased against each other by means of running between the winding layers spacer strips or Switzerlandbandagen to hold the winding layers.
  • the star blades and spacer strips are used simultaneously as a winding aids by first spanned the lower star blades on a rotating device and then the winding layers are built thereon, with a set of spacer strips is mounted therebetween.
  • the currently known compensating blades are relatively complex parts, since the height to be compensated between a star blade and a winding layer varies depending on the circumferential location of the coil, radial location of the winding layer and conductor cross section of the winding layer, which already requires a multiplicity of different, individually calculated compensating blades for a single coil dimensioning; For different coil dimensions, the required variants of compensating blades multiply.
  • the invention has for its object to overcome the disadvantages of the known solutions and to provide a simplified winding position slope compensation for air throttle coils.
  • the invention thus provides a modular plug-in system for constructing a winding layer pitch compensation of only a few variable parts, on the one hand compensating leaves and on the other hand star blades, which are form-fitting nestable by their slots, the slot depth in the star leaves the Vorkragung, ie defined effective compensation height of the compensating blades.
  • the compensating blades can thereby all be designed uniformly, possibly with different thicknesses according to the conductor cross-section as explained in more detail later, and thus very easily manufactured and stored in a few variants.
  • the slot depths of the star leaves can be easily precalculated and then the slots are made in the appropriate depths, which is a relatively simple final step and can be made for example on a uniform type of unslotted star blade blanks.
  • a mechanically high-strength in its dimensions and compensation options extremely variable system, which greatly facilitates both the production and the storage of the winding layer pitch compensation.
  • star blades may be used which have only a single receiving slot, wherein the slot depths of the receiving slots may then be different within the star blade set between different star blades.
  • each star blade has at least two spaced-apart, emanating from the edge receiving slots whose slot depths are different, so that different effective compensation heights for different layers can be created at each individual star blade.
  • the star blades are made of metal and the receiving slots are milled therein.
  • this satisfies the requirements of the high strength of the star blades, which have to bear the great weight of the winding layers, and on the other hand, this enables extremely rapid and high-precision finishing of the star blade blanks, e.g. by CNC milling in the desired slot depths.
  • the compensating blades together with their insertion slots made of plastic or molded are cut.
  • the compensating blades can thus simultaneously perform an isolator function and - once apart from different thicknesses for different conductor cross-sections - are made substantially uniform, for example by preforming the plastic.
  • GRP glass fiber reinforced plastic
  • the slots can also be formed by cutting, which can be carried out with a uniform slot depth and thus low manufacturing requirements, eg manually with a single template.
  • the slot widths of at least two receiving slots of a star blade are preferably different and the compensating blades preferably have correspondingly adapted different thicknesses in order to be able to support winding layers with different conductor cross sections.
  • a plurality of star leaves may be welded at their one ends into a star, so that they form stop stars.
  • the star leaves are preferably carried out as so-called "star leaf stubs", i.
  • the star blades in their installed position do not reach the central air space of the air throttle coil in order to save material and weight.
  • the star leaves have anchorages for spacer strips or tension bandages extending between the winding layers, e.g. Holes for screwing or hanging such elements.
  • Fig. 1 comprises an air throttle coil 1, for example for high voltage power grids, four concentric winding layers 2, 3, 4, 5, which are spaced from each other by a plurality of circumferentially spaced spacer strips 6 to form cooling air gaps 7 between each other.
  • Each of the winding layers 2 - 5 is formed from a plurality in the axial direction 8 of the air throttle coil 1 superimposed turns of a conductor 9, such as a wire, wire strand or wire rope, and reached - depending on the conductor cross-section diameter D and number of turns - an individual winding layer height h 2 - h 5 (only h 5 of the outer layer 5 shown).
  • the winding layers 2 - 5 are held together at their upper and lower axial ends 10, 11 of multi-armed support rods 12, 13, which are stretched over tension bands 14 and / or the spacer strips 6 against each other.
  • Each holding star 12, 13 is composed of a plurality of radially arranged star blades 15, which in Fig. 1 are shown in two embodiments: In the embodiment shown by dashed lines of extension of Fig. 1 The star blades 15 extend to the middle of the central air space 16 of the air throttle coil 1 and are there at their ends 17 together - possibly with the formation of a hub - welded to the holding star 12, 13.
  • star leaves 15 are shortened to "star leaf stubs", which are only in the area below or above the winding layers 2 - 5 are arranged so that they no longer reach into the central air space 16 of the air throttle coil 1.
  • Each star blade 15 is strip-shaped, for example in the form of an approximately rectangular plate, and provided along a longitudinal edge 19 with a number of the longitudinal edge 19 receiving slots 20.
  • the number of receiving slots 20 corresponds to the number of winding layers 2 - 5, for which the star blade 15 is determined.
  • Each compensating blade 18 in turn is strip-shaped, for example in the form of an approximately rectangular plate, and (at least) provided with an insertion slot 22 extending from an edge 21.
  • each receiving slot 20 of a star blade 15 is now a compensating blade 18 form-fitting inserted so that at the same time the star blade 15 engages positively in the insertion slot 22 of the compensating blade 18, as in Fig. 2 shown.
  • the compensating blades 18 are thus approximately normal, ie transversely, placed on or in the star blades 15.
  • the slot widths B S of the receiving slots 20 of the star blades 15 respectively correspond to the thicknesses D A of the compensating blades 18 received therein, and vice versa, the slot widths B A of the slots 22 of the compensating blades 18 correspond to the thicknesses D S of the respective star blades 15 inserted therein.
  • the star blades 15 preferably have a uniform thickness D S , and accordingly, the slot widths B A of the insertion slots 22 are uniformly the same.
  • the slot depths T A of the insertion slots 22 of the compensating blades 18 are preferably (although not necessarily) uniform.
  • the slot depths T S of the various receiving slots 20 of a star blade 15 are each different, ie at least two slot depths T S of two receiving slots 20 are different from each other.
  • the compensating blades 18 penetrate at different depths into a star blade 15 and thus produce different effective compensation heights ah 2 , ah 3 , ah 4 , ah 5 (in FIG Fig. 2 only ah 5 for the outermost layer 5 shown) between a star blade 15 and a winding layer 2-5.
  • Distributed over the circumference of the air throttle coil 1 star blades 15 also have each increasing or decreasing slot depths T S to the rise of the conductor 9 a winding layer 2 - 5 in the course of the first or last turn to record.
  • the star blades 15 are preferably made of metal, in particular an aluminum alloy, and the receiving slots 20 therein are preferably made by milling, for example, CNC milling.
  • the compensating blades 18 are preferably made of plastic for the purpose of insulation, eg GRP (glass fiber reinforced plastic).
  • the insertion slots 22 in the compensating blades 18 can be mitausgeformt in the plastic production of the compensating blades 18 or subsequently cut into it, stamped, milled, etc. Since here usually only a uniform slot depth T A and a uniform slot width B A are required, the cutting of the insertion slots 22 can also be done manually, for example by means of a single template.
  • the star blades 15 may be provided with additional anchors for the spacer strips 6, for example, a plurality of holes 23, with which the spacer strips 6 can be screwed.
  • the star blades 15 can be used for example in holder 25, which are distributed on the turntable of a winding machine distributed over the circumference, and then the compensating blades 18 - or initially only the radially innermost compensating blade 18 - plugged.
  • a set of spacer strips 6 is distributed over the circumference and bolted to the star blades 18, then the next leveling blades 18 are plugged (if not done yet) on the star blades 15, then the next winding layer. 3 wound, etc., etc.
  • the star blades 15 may each have only a single receiving slot 20, in which case the receiving slots 20 different star blades 15 in a set of star blades may have different slot depths T S to the increase of the conductor. 9 to absorb over the circumference of the air throttle coil 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Windings For Motors And Generators (AREA)
  • Rolling Contact Bearings (AREA)
EP14707078.3A 2013-03-15 2014-01-14 Wicklungslagen-steigungsausgleich für eine luftdrosselspule Active EP2973621B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50179/2013A AT514282B1 (de) 2013-03-15 2013-03-15 Wicklungslagen-Steigungsausgleich für eine Luftdrosselspule
PCT/AT2014/050009 WO2014138762A1 (de) 2013-03-15 2014-01-14 Wicklungslagen-steigungsausgleich für eine luftdrosselspule

Publications (2)

Publication Number Publication Date
EP2973621A1 EP2973621A1 (de) 2016-01-20
EP2973621B1 true EP2973621B1 (de) 2017-03-29

Family

ID=50189461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14707078.3A Active EP2973621B1 (de) 2013-03-15 2014-01-14 Wicklungslagen-steigungsausgleich für eine luftdrosselspule

Country Status (7)

Country Link
US (1) US10777348B2 (zh)
EP (1) EP2973621B1 (zh)
CN (1) CN105027233B (zh)
AT (1) AT514282B1 (zh)
BR (1) BR112015021881B1 (zh)
CA (1) CA2902589C (zh)
WO (1) WO2014138762A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021058229A1 (de) 2019-09-23 2021-04-01 Siemens Energy Global GmbH & Co. KG Ausgleichsblock für luftdrosselspulen und transformatoren

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521480B1 (de) 2018-08-06 2020-02-15 Coil Holding Gmbh Spulenanordnung mit einer Stützanordnung
BR112023005021A2 (pt) * 2020-10-20 2023-05-02 Siemens Energy Global Gmbh & Co Kg Arranjo estrutural para fixação de pacotes de enrolamento de condutor em reator de núcleo de ar
WO2022103395A1 (en) * 2020-11-12 2022-05-19 Siemens Energy Global GmbH & Co. KG Structural arrangement for mounting conductor winding packages in air core reactor

Family Cites Families (14)

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US1159770A (en) * 1914-12-26 1915-11-09 Gen Electric Coil construction.
US2052649A (en) * 1932-09-10 1936-09-01 Nat Aniline & Chem Co Inc Electrically heated apparatus and method of operating
GB1007569A (en) * 1962-05-29 1965-10-13 Anthony Barclay Trench Current limiting reactor
US3696315A (en) * 1970-09-24 1972-10-03 Westinghouse Electric Corp Line traps for power line carrier current systems
DE2811504A1 (de) * 1978-03-16 1979-09-27 Max Planck Gesellschaft Normal- oder supraleitende magnetspule
CA1114465A (en) 1979-04-18 1981-12-15 Steve I. Nagy Tapped air core reactor
CA1170321A (en) * 1982-01-20 1984-07-03 Richard F. Dudley Low loss spider support for coil of an inductive apparatus
US4462017A (en) * 1982-08-23 1984-07-24 General Electric Company High voltage air core reactor
CH659910A5 (de) * 1983-01-27 1987-02-27 Bbc Brown Boveri & Cie Luftdrosselspule und verfahren zu ihrer herstellung.
CA1312360C (en) * 1987-03-31 1993-01-05 Patrick Earl Burke Sensitive fault detection system for parallel coil air core reactors
US5202584A (en) * 1991-08-30 1993-04-13 Bba Canada Limited High energy dissipation harmonic filter reactor
DE102008010548A1 (de) * 2008-02-22 2009-08-27 Abb Technology Ag Zwei- oder mehrphasiger Transformator
AT507164B1 (de) * 2008-04-18 2010-03-15 Trench Austria Gmbh Elektrostatische abschirmung für einen hgü-bauteil
IN2015DN00485A (zh) * 2012-07-24 2015-06-26 Trench Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021058229A1 (de) 2019-09-23 2021-04-01 Siemens Energy Global GmbH & Co. KG Ausgleichsblock für luftdrosselspulen und transformatoren

Also Published As

Publication number Publication date
CN105027233B (zh) 2018-07-17
US20160005529A1 (en) 2016-01-07
EP2973621A1 (de) 2016-01-20
AT514282A1 (de) 2014-11-15
AT514282B1 (de) 2015-10-15
BR112015021881B1 (pt) 2021-02-17
CA2902589C (en) 2021-11-16
CA2902589A1 (en) 2014-09-18
US10777348B2 (en) 2020-09-15
BR112015021881A2 (pt) 2017-07-18
WO2014138762A1 (de) 2014-09-18
CN105027233A (zh) 2015-11-04

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