CN201449849U - Novel iron yoke binding structure of high-voltage transformer - Google Patents

Novel iron yoke binding structure of high-voltage transformer Download PDF

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Publication number
CN201449849U
CN201449849U CN200920048022XU CN200920048022U CN201449849U CN 201449849 U CN201449849 U CN 201449849U CN 200920048022X U CN200920048022X U CN 200920048022XU CN 200920048022 U CN200920048022 U CN 200920048022U CN 201449849 U CN201449849 U CN 201449849U
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CN
China
Prior art keywords
pet polyester
yoke
iron
iron yoke
binding
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.)
Expired - Lifetime
Application number
CN200920048022XU
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Chinese (zh)
Inventor
李洪春
陈琪
谈花
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.)
JIANGSU HUAPENG TRANSFORMER CO Ltd
Original Assignee
JIANGSU HUAPENG TRANSFORMER CO Ltd
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 JIANGSU HUAPENG TRANSFORMER CO Ltd filed Critical JIANGSU HUAPENG TRANSFORMER CO Ltd
Priority to CN200920048022XU priority Critical patent/CN201449849U/en
Application granted granted Critical
Publication of CN201449849U publication Critical patent/CN201449849U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a novel iron yoke binding structure of a high-voltage transformer. A lower iron yoke is bound by a first PET polyester tape at an interval of 10cm, and an upper iron yoke is bound by a second PET polyester tape at an interval of 10cm. Insulating paper boards which are 0.5mm in thickness are respectively arranged between the first PET polyester tape and the lower iron yoke and between the second PET polyester tape and the upper iron yoke. A wood stepped cushion block is arranged on the lower iron yoke, the periphery of the wood stepped cushion block, the lower iron yoke and a lower iron core clamp is bound integrally with a third PET polyester tape at an interval of 10cm, and the periphery of the second PET polyester tape, the upper iron and an upper iron core clamp is bound with a fourth PET polyester tape at an interval of 10cm. The iron yokes, the iron core clamps and the wood stepped cushion block are bound integrally by the PET polyester tapes replacing epoxy glass adhesive tapes so as to form a firm integral body. Further, the binding structure can not generate local discharge, thereby increasing mechanical stability of the iron cores and quality and safety of the transformer greatly.

Description

The new iron yoke binding structure of high voltage transformer
Technical field
The utility model belongs to the new iron yoke binding structure in transformer technology field, particularly a kind of high voltage transformer.
Background technology
In electric power system, the visual plant that 500kV and above extra-high pressure transformer are power transmission and transformation.In high voltage transformer inside, there are many high electric field regions, wherein coil first and last end and last lower yoke also belong to one of high electric field region.Structural design in this zone will cause the partial discharge of transformer inside if any improper, influence transformer and check and accept quality and safe operation.In traditional structure, the bandage of lower yoke adopts the expoxy glass adhesive tape on the colligation transformer core.This bandage uses glue in a large number, and the expoxy glass adhesive tape tends to occur can form CAB because rate of warming is too fast or be heated inhomogeneously in bandage in solidification process.Under high electric field action, these CABs can produce partial discharge, thereby influence the quality of transformer.
Summary of the invention
The purpose of this utility model provides a kind of new iron yoke binding structure of high voltage transformer.This new iron yoke binding structure replaces the expoxy glass adhesive tape that iron yoke, iron core folder and ladder wood block filler are carried out overall binding with the PET polyester belt, makes it can form a firm integral body.And this binding structure can not produce partial discharge, can improve the mechanical stability of iron core and the quality and the fail safe of transformer greatly.
The technical solution of the utility model is: a kind of new iron yoke binding structure of high voltage transformer.It is whenever to be separated by 10 centimetres to carry out colligation with a PET polyester belt on lower yoke, whenever is separated by 10 centimetres to carry out colligation with the 2nd PET polyester belt on upper yoke.Between a PET polyester belt and the lower yoke and between the 2nd PET polyester belt and upper yoke, all place the thick insulating board of 0.5mm.On lower yoke, place the ladder wood block filler.Whenever be separated by in ladder wood block filler, lower yoke and lower core folder periphery again 10 centimetres and carry out overall binding with the 3rd PET polyester belt.Whenever be separated by in the 2nd PET polyester belt, upper yoke and upper core folder periphery 10 centimetres and carry out overall binding with the 4th PET polyester belt.
The utility model has the advantages that the new iron yoke binding structure that a kind of high voltage transformer is provided.This new iron yoke binding structure replaces the expoxy glass adhesive tape that iron yoke, iron core folder and ladder wood block filler are carried out overall binding with the PET polyester belt, makes it form a firm integral body.And this binding structure can not produce partial discharge, improved the mechanical stability of iron core and the quality and the fail safe of transformer greatly.
Description of drawings
Below in conjunction with drawings and Examples the utility model patent is described further:
Fig. 1 is the structural representation at the utility model lower yoke place.
Fig. 2 is the structural representation at the utility model upper yoke place.
Fig. 3 is the sectional structure schematic diagram at A-A place among Fig. 1.
Fig. 4 is the sectional structure schematic diagram at B-B place among Fig. 2.
Among the figure, the 1, the one PET polyester belt, 2, insulating board, 3, the ladder wood block filler, 4, the 3rd PET polyester belt, 5, the lower core folder, 6, lower yoke, 7, the transformer core stem stem, 8, the 2nd PET polyester belt, the 9, the 4th PET polyester belt, 10, upper yoke, 11, the upper core folder.
Embodiment
Embodiment as shown in Figure 1 and Figure 2 is as follows: a kind of new iron yoke binding structure of high voltage transformer.It is whenever to be separated by 10 centimetres to carry out colligation with a PET polyester belt 1 on lower yoke 6, whenever is separated by 10 centimetres to carry out colligation with the 2nd PET polyester belt 8 on upper yoke 10.Between a PET polyester belt 1 and the lower yoke 6 and between the 2nd PET polyester belt 8 and upper yoke 10, all place the thick insulating board of 0.5mm 2.On lower yoke 6, place ladder wood block filler 3.Whenever be separated by in ladder wood block filler 3, lower yoke 6 and lower core folder 5 peripheries again 10 centimetres and carry out overall binding with the 3rd PET polyester belt 4.Whenever be separated by in the 2nd PET polyester belt 8, upper yoke 10 and upper core folder 11 peripheries 10 centimetres and carry out overall binding with the 4th PET polyester belt 9.

Claims (1)

1. the new iron yoke binding structure of a high voltage transformer is characterized in that: it is whenever to be separated by 10 centimetres to carry out colligation with a PET polyester belt on lower yoke, whenever is separated by 10 centimetres to carry out colligation with the 2nd PET polyester belt on upper yoke; Between a PET polyester belt and the lower yoke and between the 2nd PET polyester belt and upper yoke, all place the thick insulating board of 0.5mm, on lower yoke, place the ladder wood block filler; Whenever be separated by in ladder wood block filler, lower yoke and lower core folder periphery again 10 centimetres and carry out overall binding with the 3rd PET polyester belt; Whenever be separated by in the 2nd PET polyester belt, upper yoke and upper core folder periphery 10 centimetres and carry out overall binding with the 4th PET polyester belt.
CN200920048022XU 2009-08-25 2009-08-25 Novel iron yoke binding structure of high-voltage transformer Expired - Lifetime CN201449849U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920048022XU CN201449849U (en) 2009-08-25 2009-08-25 Novel iron yoke binding structure of high-voltage transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200920048022XU CN201449849U (en) 2009-08-25 2009-08-25 Novel iron yoke binding structure of high-voltage transformer

Publications (1)

Publication Number Publication Date
CN201449849U true CN201449849U (en) 2010-05-05

Family

ID=42554571

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200920048022XU Expired - Lifetime CN201449849U (en) 2009-08-25 2009-08-25 Novel iron yoke binding structure of high-voltage transformer

Country Status (1)

Country Link
CN (1) CN201449849U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111292928A (en) * 2020-03-16 2020-06-16 广东科源电气股份有限公司 Novel oil becomes insulating formed part
CN111415816A (en) * 2019-08-29 2020-07-14 浦江星诚电气有限公司 Safe and reliable's transformer core processing equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111415816A (en) * 2019-08-29 2020-07-14 浦江星诚电气有限公司 Safe and reliable's transformer core processing equipment
CN111415816B (en) * 2019-08-29 2021-06-25 浦江星诚电气有限公司 Transformer core processing equipment
CN111292928A (en) * 2020-03-16 2020-06-16 广东科源电气股份有限公司 Novel oil becomes insulating formed part
CN111292928B (en) * 2020-03-16 2021-03-26 广东科源电气股份有限公司 Novel oil becomes insulating formed part

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CX01 Expiry of patent term

Granted publication date: 20100505

CX01 Expiry of patent term