EP2973621A1 - Winding layer pitch compensation for an air-core reactor - Google Patents
Winding layer pitch compensation for an air-core reactorInfo
- Publication number
- EP2973621A1 EP2973621A1 EP14707078.3A EP14707078A EP2973621A1 EP 2973621 A1 EP2973621 A1 EP 2973621A1 EP 14707078 A EP14707078 A EP 14707078A EP 2973621 A1 EP2973621 A1 EP 2973621A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- star
- blades
- slot
- winding layer
- edge
- 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
Links
- 238000004804 winding Methods 0.000 title claims abstract description 58
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims 1
- 239000010410 layer Substances 0.000 description 42
- 239000004020 conductor Substances 0.000 description 11
- 239000011295 pitch Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000011152 fibreglass Substances 0.000 description 4
- 238000003801 milling Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241000511074 Schefflera actinophylla Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- H01F27/30—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 Windungslagen- slope compensation for an air throttle coil, which has at least two concentric, radially spaced apart winding layers.
- Air choke coils are used in energy supply networks and are - in contrast to oil-insulated coils - "dry-insulated” choke coils, in which the isolation by solid insulation and sufficient clearance and creepage distances is accomplished and which usually also contain no ferromagnetic core, ie their central airspace free is .
- 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 retaining stars or star blades are thereby stretched against each other by means of spacer strips or tension bandages extending between the winding layers in order to hold the winding layers.
- the star blades and spacer strips are simultaneously used as winding aids, by first placing the lower star leaves on a coil Turning device clamped and then the winding layers are built thereon, with a set of spacer strips is mounted therebetween.
- the object of the invention is to overcome the disadvantages of the known solutions and to provide a simplified winding layer pitch compensation for air throttle coils.
- 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.
- a plurality of star leaves may be welded at their one ends into a star, so that they form stop stars.
- the star blades are preferably embodied as so-called “star blade stubs", that is, the star blades in their mounting position do not extend into the central air space of the air choke to save material and weight.
- the winding layers 2-5 are held together at their upper and lower axial ends 10, 11 by multi-arm support stems 12, 13, which are tensioned against one another via tension straps 14 and / or the spacer strips 6.
- Each holding star 12, 13 is composed of a plurality of radially arranged star blades 15, which are shown in two embodiments in Fig. 1: In the embodiment of Fig. 1 shown with dashed extension lines the star blades 15 extend to the center 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.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50179/2013A AT514282B1 (en) | 2013-03-15 | 2013-03-15 | Winding layer pitch compensation for an air throttle coil |
PCT/AT2014/050009 WO2014138762A1 (en) | 2013-03-15 | 2014-01-14 | Winding layer pitch compensation for an air-core reactor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2973621A1 true EP2973621A1 (en) | 2016-01-20 |
EP2973621B1 EP2973621B1 (en) | 2017-03-29 |
Family
ID=50189461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14707078.3A Active EP2973621B1 (en) | 2013-03-15 | 2014-01-14 | Winding layer pitch compensation for an air-core reactor |
Country Status (7)
Country | Link |
---|---|
US (1) | US10777348B2 (en) |
EP (1) | EP2973621B1 (en) |
CN (1) | CN105027233B (en) |
AT (1) | AT514282B1 (en) |
BR (1) | BR112015021881B1 (en) |
CA (1) | CA2902589C (en) |
WO (1) | WO2014138762A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3796346A1 (en) | 2019-09-23 | 2021-03-24 | Siemens Energy Global GmbH & Co. KG | Compensation block for air choke coils and transformers |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT521480B1 (en) | 2018-08-06 | 2020-02-15 | Coil Holding Gmbh | Coil arrangement with a support arrangement |
WO2022086505A1 (en) * | 2020-10-20 | 2022-04-28 | Siemens Energy Global GmbH & Co. KG | Structural arrangement for attachment of conductor winding packages in air core reactor |
US11823822B2 (en) | 2020-11-12 | 2023-11-21 | Siemens Energy Global GmbH & Co. KG | Structural arrangement for mounting conductor winding packages in air core reactor |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 (en) * | 1978-03-16 | 1979-09-27 | Max Planck Gesellschaft | NORMAL OR SUPRAL CONDUCTING MAGNETIC COIL |
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 (en) * | 1983-01-27 | 1987-02-27 | Bbc Brown Boveri & Cie | AIR THROTTLE COIL AND METHOD FOR THEIR PRODUCTION. |
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 (en) * | 2008-02-22 | 2009-08-27 | Abb Technology Ag | Two- or multi-phase transformer |
AT507164B1 (en) * | 2008-04-18 | 2010-03-15 | Trench Austria Gmbh | ELECTROSTATIC SHIELDING FOR A HVDC EQUIPMENT |
IN2015DN00485A (en) * | 2012-07-24 | 2015-06-26 | Trench Ltd |
-
2013
- 2013-03-15 AT ATA50179/2013A patent/AT514282B1/en active
-
2014
- 2014-01-14 US US14/771,571 patent/US10777348B2/en active Active
- 2014-01-14 EP EP14707078.3A patent/EP2973621B1/en active Active
- 2014-01-14 CN CN201480016120.9A patent/CN105027233B/en active Active
- 2014-01-14 BR BR112015021881-4A patent/BR112015021881B1/en active IP Right Grant
- 2014-01-14 CA CA2902589A patent/CA2902589C/en active Active
- 2014-01-14 WO PCT/AT2014/050009 patent/WO2014138762A1/en active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3796346A1 (en) | 2019-09-23 | 2021-03-24 | Siemens Energy Global GmbH & Co. KG | Compensation block for air choke coils and transformers |
Also Published As
Publication number | Publication date |
---|---|
AT514282A1 (en) | 2014-11-15 |
WO2014138762A1 (en) | 2014-09-18 |
US10777348B2 (en) | 2020-09-15 |
CA2902589A1 (en) | 2014-09-18 |
BR112015021881B1 (en) | 2021-02-17 |
CN105027233B (en) | 2018-07-17 |
CA2902589C (en) | 2021-11-16 |
US20160005529A1 (en) | 2016-01-07 |
AT514282B1 (en) | 2015-10-15 |
CN105027233A (en) | 2015-11-04 |
EP2973621B1 (en) | 2017-03-29 |
BR112015021881A2 (en) | 2017-07-18 |
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