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WO2011147310A1 - 一种110kV及以上电压等级立体三角形卷铁心电力变压器 - Google Patents

一种110kV及以上电压等级立体三角形卷铁心电力变压器 Download PDF

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Publication number
WO2011147310A1
WO2011147310A1 PCT/CN2011/074630 CN2011074630W WO2011147310A1 WO 2011147310 A1 WO2011147310 A1 WO 2011147310A1 CN 2011074630 W CN2011074630 W CN 2011074630W WO 2011147310 A1 WO2011147310 A1 WO 2011147310A1
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Prior art keywords
winding
iron core
core
iron
insulating
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English (en)
French (fr)
Inventor
许凯旋
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Guangdong Haihong Co Ltd
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Guangdong Haihong Co Ltd
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Priority to US13/700,719 priority Critical patent/US8653929B2/en
Priority to KR1020127026291A priority patent/KR101377384B1/ko
Priority to MYPI2012701030A priority patent/MY184113A/en
Publication of WO2011147310A1 publication Critical patent/WO2011147310A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/263—Fastening parts of the core together
    • 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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • 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
    • 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
    • H01F27/33—Arrangements for noise damping
    • 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
    • H01F30/12—Two-phase, three-phase or polyphase transformers
    • 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

Definitions

  • the invention belongs to the technical field of electric equipment, and specifically relates to a three-dimensional triangular-rolled iron core power transformer with a voltage level of 110 kV and above.
  • the power transformers of the 110kV and above voltage levels on the market are all iron cores.
  • the laminated iron core is made up of a slitting production line and a cross-cutting production line, and the silicon steel strip is processed into a certain shape of silicon steel sheet, and then the silicon steel sheet is stacked in a certain manner.
  • the main disadvantages of the stacked iron core 1. There are many air gaps formed by the seams in the magnetic circuit. This air gap increases the magnetic resistance of the magnetic circuit, thereby increasing the no-load loss and no-load current. 2.
  • the direction of the local local magnetic circuit is inconsistent with the high magnetic direction of the silicon steel strip.
  • the film is not tight enough between the film, which not only reduces the lamination factor, but more importantly increases the noise. 4.
  • the three-phase magnetic circuit is unbalanced, resulting in a three-phase current imbalance of the power transformer.
  • the laminated iron core power transformer has obvious defects and needs further improvement.
  • the object of the present invention is to provide a three-dimensional triangular-rolled iron core power transformer with a reasonable structure, safety, reliability, energy saving, three-phase balance and noise reduction, and a voltage level of 110 kV and above.
  • the invention is realized as follows: a three-dimensional triangular-rolled iron core power transformer with a voltage level of 110 kV and above, comprising a three-dimensional triangular winding core and a winding, the special feature is that the three-dimensional triangular winding core is composed of an iron yoke and a iron core, three The iron core columns are arranged in an equilateral triangle, and the adjacent two iron core columns are connected by an iron yoke;
  • the winding comprises a high voltage winding, a low voltage winding, or further comprising a voltage regulating winding; the high voltage winding and the low voltage winding are wound on the iron core; the voltage regulating winding is also wound on a core column;
  • angle rings Also included are angle rings, end rings, insulated end rings, insulated end plates and frame clamps.
  • An angle ring, an insulating end ring, an end ring and an insulating end plate are arranged at two ends of the iron core column, and the end of the iron core column is further disposed on the insulating end plate; the high voltage winding, the low voltage winding and the voltage regulating winding are disposed between the corner rings.
  • On the iron core column three iron core columns respectively pass through the insulating end plate; the frame type clamp covers the iron yoke, and the support plate on the frame type bracket is connected with the insulating end plate through the pressing nail;
  • the utility model further comprises an insulating cylinder and a struts; the insulating cylinder encloses a high voltage winding, a low voltage winding and a voltage regulating winding; a struts are arranged between the adjacent two insulating cylinders, and a gap between the adjacent two struts and the insulating cylinder constitutes an oil chamber ;
  • the three-dimensional triangular-rolled iron core power transformer of the voltage level of 110 kV and above is special in that the three-dimensional triangular-shaped core is formed by three identical single-frame joints, and the three iron cores after the splitting are presented.
  • the equilateral triangle is arranged in a three-dimensional arrangement; the cross section of the iron core is circular.
  • the above-mentioned 110kV and above voltage level three-dimensional triangular-rolled iron core power transformer is special in that: a second stay, a block and a baffle plate are arranged on the winding; the block is located at two ends of the winding on the iron core column, a second stay is located on the winding between the two blocks;
  • the second stay is mated with the insulation barrel and the winding.
  • the invention relates to a three-dimensional triangular-rolled iron core power transformer with a voltage level of 110KV and above. Because of adopting such a structure, the three-dimensional triangular-rolled core is formed by three identical single-frame joints, and the three cores of the assembled iron core are waited for. The three-dimensional arrangement of the side triangles ensures the balance of the three-phase power supply, and the magnetic resistance is greatly reduced, and the excitation current and the no-load loss are significantly reduced.
  • Each single frame is continuously wound by a plurality of trapezoidal strips, and the silicon steel strips are tightly wound. The magnetic direction of the silicon steel strips is completely consistent with the magnetic path direction of the iron core, and the vibration during operation is small, and the laminated iron core is solved.
  • the cross-section of the single frame after winding is close to a semi-circular shape, and the cross-section after the flattening is a quasi-polygon that is very close to the full circle (as shown in Fig. 3), and the different size trapezoidal strips of the single-frame are wound by a special fold line.
  • the machine is obtained by cutting. This type of cutting can be processed without cost, that is, when the cutting is made, the material utilization rate is 100%.
  • Figure 1 is a cross-sectional view of the present invention.
  • Figure 2 is a perspective view of a three-dimensional triangular core of the present invention.
  • Figure 3 is a cross-sectional view of a core column of a three-dimensional triangular core of the present invention.
  • a three-dimensional triangular-rolled iron core power transformer of voltage level of 110 kV and above includes a three-dimensional triangular core and a winding.
  • the three-dimensional triangular core 1 is composed of an iron yoke 11 and a core.
  • the column 12 is formed, the three core columns 12 are arranged in an equilateral triangle, and the adjacent two core columns 12 are connected by the iron yoke 11;
  • the winding includes a high voltage winding 21, a low voltage winding 22, or further includes a voltage regulating winding 23; the high voltage winding 21 and the low voltage winding 22 are wound around the core column 12; the voltage regulating winding 23 is also wound around a core column 12;
  • An angle ring 3, an insulating end ring 5, an end ring 4 and an insulating end ring 5 are arranged at two ends of the iron core column, and an end portion of the iron core column 12 is further provided with an insulating end plate 6; a high voltage winding 21, a low voltage winding 22 and a voltage regulating The windings 23 are disposed on the core studs 12 between the corner rings 3, and the three core studs 12 respectively pass through the insulating end plates 6; the frame clamps 7 cover the iron yokes 11, and the support plates 71 on the frame type clamp members 7 are pressed The nail 8 is connected to the insulating end plate 6;
  • the insulating cylinder 9 encloses the high voltage winding 21, the low voltage winding 22 and the voltage regulating winding 23; the struts 10 are disposed between the adjacent two insulating cylinders 9, and the gap between the adjacent two struts 10 and the insulating cylinder 9 constitutes an oil chamber ;
  • the three-dimensional triangular core 1 is formed by three identical single frames, and the three core columns 12 are arranged in an equilateral triangle.
  • the cross section of the core stud 12 is circular.
  • the winding is provided with a second stay 13, a block 14 and a baffle 15; the block 14 is located at both ends of the winding of the core stud 12, and the second strut 13 is located on the winding between the two blocks 14. ;
  • the second stay 13 is engaged with the insulating barrel 9 and the winding.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)

Description

一种110kV及以上电压等级立体三角形卷铁心电力变压器
技术领域
本发明属于电力设备的技术领域，具体是指一种110kV及以上电压等级立体三角形卷铁心电力变压器。
背景技术
目前市场上的110kV及以上电压等级的电力变压器，所采用的铁心均为叠铁心。叠铁心是由纵剪生产线和横剪生产线，将硅钢带加工成一定形状的硅钢片，再将硅钢片按一定方式叠装而成。叠铁心的主要缺点： 1. 在磁路中存在着许多接缝形成的空气隙，这种空气隙加大了磁路的磁阻，从而增加了空载损耗和空载电流。2. 局部地方磁路的方向与硅钢带的高导磁方向不一致。3.片与片之间不够紧密，不仅降低了叠片系数，更重要的是加大了噪音。4.三相磁路不平衡，导致电力变压器的三相电流不平衡。综上所述，叠铁心电力变压器存在着明显的缺陷，有待进一步改进。
发明内容
本发明的目的是：提供一种结构合理，安全可靠，节能省材，三相平衡，降低噪音的一种110kV及以上电压等级立体三角形卷铁心电力变压器。
本发明是这样实现的：一种110kV及以上电压等级立体三角形卷铁心电力变压器，包括立体三角形卷铁心和绕组，其特殊之处在于：所述立体三角形卷铁心由铁轭和铁心柱构成，三个铁心柱呈正三角形排列，相邻二个铁心柱由铁轭连接在一起；
所述绕组包括高压绕组、低压绕组，或还包括调压绕组；高压绕组和低压绕组绕在铁心柱上；所述调压绕组也绕在一铁心柱上；
还包括角环、端环、绝缘端圈、绝缘端板和框架式夹件，
在铁心柱的两端依次设置有角环、绝缘端圈、端环和绝缘端板，铁心柱端部还设置在绝缘端板；高压绕组、低压绕组和调压绕组设置在角环之间的铁心柱上，三个铁心柱分别穿过绝缘端板；框架式夹件覆盖铁轭，框架式支架上的支板通过压钉与绝缘端板相连接；
还包括绝缘筒和撑条；所述绝缘筒包裹高压绕组、低压绕组和调压绕组；相邻二个绝缘筒之间设置撑条，相邻二撑条与绝缘筒之间的间隙构成油腔；
所述的一种110kV及以上电压等级立体三角形卷铁心电力变压器，其特殊之处在于：所述的立体三角形卷铁心由三个完全相同的单框拼合而成，拼合后的三个铁心柱呈等边三角形立体排列；铁心柱的截面呈类圆形。
所述的一种110kV及以上电压等级立体三角形卷铁心电力变压器，其特殊之处在于：绕组上设有第二撑条、垫块和挡油板；垫块位于铁心柱上绕组的两端，第二撑条位于二个垫块之间的绕组上；
第二撑条与绝缘筒和绕组配合。
本发明一种110KV及以上电压等级立体三角形卷铁心电力变压器，由于采用这样的结构，立体三角形卷铁心是由三个完全相同的单框拼合而成，拼合后的铁心的三个心柱呈等边三角形立体排列，确保三相供电平衡，并使磁阻大大减小，励磁电流、空载损耗显著降低。每个单框是由若干根梯形料带依次连续卷绕而成，硅钢带之间卷绕紧密，硅钢带的导磁方向与铁心的磁路方向完全一致，工作时振动小，解决了叠铁心因磁路不连贯而发出的噪音。卷绕后的单框横截面接近半圆形，拼合后的横截面呈非常接近整圆的准多边形（如图3所示），卷绕单框的不同尺寸梯形料带，由专用折线开料机进行套裁加工得到。这种套裁加工可以做到无费料加工，即套裁时，材料利用率为100%。
附图说明
图1是本发明剖视图。
图2是本发明立体三角形卷铁心的立体图。
图3是本发明立体三角形卷铁心的铁心柱的截面图。
具体实施方式
下面结合附图对本发明作进一步描述。
如图1、图2所示，一种110kV及以上电压等级立体三角形卷铁心电力变压器，包括立体三角形卷铁心和绕组，如图2所示，所述立体三角形卷铁心1由铁轭11和铁心柱12构成，三个铁心柱12呈正三角形排列，相邻二个铁心柱12由铁轭11连接在一起；
所述绕组包括高压绕组21、低压绕组22，或还包括调压绕组23；高压绕组21和低压绕组22绕在铁心柱上12；所述调压绕组23也绕在一铁心柱12上；
还包括角环3、端环4、绝缘端圈5、绝缘端板6和框架式夹件7，
在铁心柱的两端依次设置有角环3、绝缘端圈5、端环4和绝缘端圈5，铁心柱12端部还设置有绝缘端板6；高压绕组21、低压绕组22和调压绕组23设置在角环3之间的铁心柱12上，三个铁心柱12分别穿过绝缘端板6；框架式夹件7覆盖铁轭11，框架式夹件7上的支板71通过压钉8与绝缘端板6连接；
还包括绝缘筒9和撑条10；
所述绝缘筒9包裹高压绕组21、低压绕组22和调压绕组23；相邻二个绝缘筒9之间设置撑条10，相邻二撑条10与绝缘筒9之间的间隙构成油腔；
如图2所示，所述的立体三角形卷铁心1由三个完全相同的单框拼合而成，拼合后的三个铁心柱12呈等边三角形立体排列；
如图3所示，铁心柱12的截面呈类圆形。
所述绕组上设有第二撑条13、垫块14和挡油板15；垫块14位于铁心柱12上绕组的两端，第二撑条13位于二个垫块14之间的绕组上；
第二撑条13与绝缘筒9和绕组配合。
以上所述的仅是本发明的优先实施方式。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明原理的情况下，还可以作出若干改进和变型，这也视为本发明的保护范围。

Claims (3)

  1. 一种110kV及以上电压等级立体三角形卷铁心电力变压器，包括立体三角形卷铁心和绕组，其特征在于：所述立体三角形卷铁心由铁轭和铁心柱构成，三个铁心柱呈正三角形排列，相邻二个铁心柱由铁轭连接在一起；
    所述绕组包括高压绕组、低压绕组，或还包括调压绕组；高压绕组和低压绕组绕在铁心柱上；所述调压绕组也绕在一铁心柱上；
    还包括角环、端环、绝缘端圈、绝缘端板和框架式夹件，
    在铁心柱的两端依次设置有角环、绝缘端圈、端环和绝缘端圈，铁心柱端部还设置在绝缘端板；高压绕组、低压绕组和调压绕组设置在角环之间的铁心柱上，三个铁心柱分别穿过绝缘端板；框架式夹件覆盖铁轭，框架式支架上的支板通过压钉与绝缘端板相连接；
    还包括绝缘筒和撑条。
  2. 所述绝缘筒包裹高压绕组、低压绕组和调压绕组；相邻二个绝缘筒之间设置撑条，相邻二撑条与绝缘筒之间的间隙构成油腔；
    根据权利要求1所述的一种110kV及以上电压等级立体三角形卷铁心电力变压器，其特征在于：所述的立体三角形卷铁心由三个完全相同的单框拼合而成，拼合后的三个铁心柱呈等边三角形立体排列；
    铁心柱的截面呈类圆形。
  3. 根据权利要求1或2所述的一种110kV及以上电压等级立体三角形卷铁心电力变压器，其特征在于：绕组上设有第二撑条、垫块和挡油板；垫块位于铁心柱上绕组的两端，第二撑条位于二个垫块之间的绕组上；
    第二撑条与绝缘筒和绕组配合。
PCT/CN2011/074630 2010-05-28 2011-05-25 一种110kV及以上电压等级立体三角形卷铁心电力变压器 Ceased WO2011147310A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/700,719 US8653929B2 (en) 2010-05-28 2011-05-25 Stereo-triangular wound-core power transformer with a voltage class more than or equal to 110kV
KR1020127026291A KR101377384B1 (ko) 2010-05-28 2011-05-25 110킬로 볼트 및 이상의 전압등급 입체 삼각형 권철심 전력 변압기
MYPI2012701030A MY184113A (en) 2010-05-28 2011-05-25 Stereo-triangular wound core power transformer with voltage class more than or equal to 110kv

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010202134760U CN201741535U (zh) 2010-05-28 2010-05-28 一种110kV及以上电压等级立体三角形卷铁心电力变压器
CN201020213476.0 2010-05-28

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WO2011147310A1 true WO2011147310A1 (zh) 2011-12-01

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US (1) US8653929B2 (zh)
KR (1) KR101377384B1 (zh)
CN (1) CN201741535U (zh)
MY (1) MY184113A (zh)
WO (1) WO2011147310A1 (zh)

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CN201741535U (zh) * 2010-05-28 2011-02-09 广东海鸿变压器有限公司 一种110kV及以上电压等级立体三角形卷铁心电力变压器
CN102262955A (zh) * 2010-05-28 2011-11-30 广东海鸿变压器有限公司 一种110kV及以上电压等级立体三角形卷铁心电力变压器
MY177569A (en) * 2011-05-27 2020-09-21 Guangdong Haihong Co Ltd Amorphous alloy stereo wound-core
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EP3951812B1 (en) * 2020-08-06 2025-07-30 Hitachi Energy Ltd Transformer core and transformer
CN112259327B (zh) * 2020-10-30 2024-08-09 山东电工电气集团常州东智变压器有限公司 1000kV高压绕组分裂的双圈油浸式电力变压器
CN112652477B (zh) * 2020-12-14 2022-08-16 山东电力设备有限公司 线圈油道垫条全自动粘接方法
KR102687994B1 (ko) * 2022-03-03 2024-07-23 엘에스일렉트릭(주) 진동 저감부 및 이를 포함하는 변압기
CN114974861A (zh) * 2022-07-05 2022-08-30 广东电网有限责任公司广州供电局 一种三相星形立体铁芯变压器模块化组装方法
CN116469655B (zh) * 2023-06-19 2023-09-01 北京电科能创技术有限公司 一种高耦合小型化干式空心电抗器
CN117373799A (zh) * 2023-11-27 2024-01-09 特富特电磁科技(洛阳)有限公司 一种一拖三电抗器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2053372U (zh) * 1989-06-20 1990-02-21 沈阳变压器厂 一种线端调压的调压线圈
CN201072688Y (zh) * 2007-07-27 2008-06-11 中电电气集团有限公司 变压器挡油板装置及应用该装置的油导向结构
CN101236824A (zh) * 2007-12-20 2008-08-06 卧龙电气集团股份有限公司 单相牵引变压器的器身结构
CN201259817Y (zh) * 2009-01-20 2009-06-17 广东海鸿变压器有限公司 立体卷铁心树脂绝缘干式变压器
CN201741535U (zh) * 2010-05-28 2011-02-09 广东海鸿变压器有限公司 一种110kV及以上电压等级立体三角形卷铁心电力变压器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815068A (en) * 1968-01-31 1974-06-04 Hitachi Ltd Stationary induction apparatus
JPS5923455B2 (ja) * 1978-11-06 1984-06-02 株式会社日立製作所 ３巻線変圧器
US6683524B1 (en) * 1998-09-02 2004-01-27 Hoeglund Lennart Transformer core
SE0000410D0 (sv) * 2000-02-06 2000-02-06 Lennart Hoeglund Trefas transformatorkärna
AU2010211030A1 (en) * 2009-02-05 2011-07-28 Hexaformer Ab Amorphous metal continuous flux path transformer and method of manufacture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2053372U (zh) * 1989-06-20 1990-02-21 沈阳变压器厂 一种线端调压的调压线圈
CN201072688Y (zh) * 2007-07-27 2008-06-11 中电电气集团有限公司 变压器挡油板装置及应用该装置的油导向结构
CN101236824A (zh) * 2007-12-20 2008-08-06 卧龙电气集团股份有限公司 单相牵引变压器的器身结构
CN201259817Y (zh) * 2009-01-20 2009-06-17 广东海鸿变压器有限公司 立体卷铁心树脂绝缘干式变压器
CN201741535U (zh) * 2010-05-28 2011-02-09 广东海鸿变压器有限公司 一种110kV及以上电压等级立体三角形卷铁心电力变压器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114530317A (zh) * 2022-02-28 2022-05-24 西安热工研究院有限公司 一种油浸式可控电抗器

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