CN209591768U - A kind of band auxiliary winding transformer - Google Patents

A kind of band auxiliary winding transformer Download PDF

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Publication number
CN209591768U
CN209591768U CN201920721772.2U CN201920721772U CN209591768U CN 209591768 U CN209591768 U CN 209591768U CN 201920721772 U CN201920721772 U CN 201920721772U CN 209591768 U CN209591768 U CN 209591768U
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CN
China
Prior art keywords
winding
low pressure
auxiliary winding
iron core
auxiliary
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Active
Application number
CN201920721772.2U
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Chinese (zh)
Inventor
胡芳
郭浩
程玉芳
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Baoding Tianwei Baobian Electric Co Ltd
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Baoding Tianwei Baobian Electric Co Ltd
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Priority to CN201920721772.2U priority Critical patent/CN209591768U/en
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Abstract

The utility model relates to a kind of band auxiliary winding transformers, belong to technical field of transformer manufacturing.The technical solution of the utility model is: including iron core (1), auxiliary winding (2), low pressure winding (3) and high-voltage winding (4), the low pressure winding (3) and high-voltage winding (4) concentric type are sleeved on iron core (1), and insulating cylinder and stay are equipped between low pressure winding (3) and high-voltage winding (4);Auxiliary winding (2) is sleeved on the outside of iron core (1) by support insulators, is located at the lower section of low pressure winding (3).The beneficial effects of the utility model are: auxiliary winding to be sleeved on to the outside of iron core and the lower section of low pressure winding, with existing each winding compared with contour and concentric type structure, it is greater than 300% short-circuit impedance between auxiliary winding easy to accomplish and main winding, and transformer manufacturing cost can be significantly reduced.

Description

A kind of band auxiliary winding transformer
Technical field
The utility model relates to a kind of band auxiliary winding transformers, belong to technical field of transformer manufacturing.
Background technique
For the transformer being mounted in substation, it is sometimes desirable to which transformer has the auxiliary winding of low capacity, auxiliary with this Help the electric energy of winding output substation's internal demands.The capacity of auxiliary winding is generally less than or equal to transformer rated capacity 10%, but in order to which transformer will not be damaged when guaranteeing that short circuit occurs for auxiliary winding output end, it is desirable to auxiliary winding is to main winding Short-circuit impedance is greater than 300%.If auxiliary winding will be sleeved between iron core and low pressure winding with existing technology, this structure is not The high impedance being only difficult to realize between auxiliary winding and main winding can also increase considerably transformer manufacturing cost.
Utility model content
The utility model aim is to provide a kind of band auxiliary winding transformer, by auxiliary winding be sleeved on iron core outside and The lower section of low pressure winding, compared with and concentric type structure contour with existing each winding, between auxiliary winding easy to accomplish and main winding Short-circuit impedance greater than 300%, and transformer manufacturing cost can be significantly reduced, it efficiently solves on present in background technique State problem.
The technical solution of the utility model is: a kind of band auxiliary winding transformer, comprising iron core, auxiliary winding, low pressure around Group and high-voltage winding, the low pressure winding and high-voltage winding concentric type are sleeved on iron core, between low pressure winding and high-voltage winding Equipped with insulating cylinder and stay;Auxiliary winding is sleeved on the outside of iron core by support insulators, positioned at the lower section of low pressure winding.
The height of the auxiliary winding is at 30~100mm(millimeters) in range, the internal diameter of auxiliary winding and low pressure winding Internal diameter is identical, and the outer diameter of auxiliary winding and the outer diameter of low pressure winding match.
Transformer core has been manufactured first, and assembly supports the insulating part of winding on iron core, is then set with auxiliary winding; Insulating end ring is assembled in the top of auxiliary winding, is set with low pressure winding later;Insulating cylinder and support are assembled in the outside of low pressure winding Item is set with high-voltage winding later;Remaining body insulating part is installed, then completes the other assembly works of transformer by process;It installs After transformer, transformer various performance parameters are measured by respective standard, between auxiliary winding and high-voltage winding and low pressure winding Short-circuit impedance can reach 300% or more.
The beneficial effects of the utility model are: auxiliary winding is sleeved on to the outside of iron core and the lower section of low pressure winding, with Existing each winding is contour and concentric type structure is compared, the short circuit resistance between auxiliary winding easy to accomplish and main winding greater than 300% It is anti-, and transformer manufacturing cost can be significantly reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
In figure: iron core 1, auxiliary winding 2, low pressure winding 3, high-voltage winding 4.
Specific embodiment
Technical solutions of the utility model are described in further detail with embodiment with reference to the accompanying drawing.
A kind of band auxiliary winding transformer is described low comprising iron core 1, auxiliary winding 2, low pressure winding 3 and high-voltage winding 4 Pressure winding 3 and 4 concentric type of high-voltage winding are sleeved on iron core 1, and insulating cylinder and support are equipped between low pressure winding 3 and high-voltage winding 4 Item;Auxiliary winding 2 is sleeved on the outside of iron core 1 by support insulators, positioned at the lower section of low pressure winding 3.
The height of the auxiliary winding 2 is at 30~100mm(millimeters) in range, the internal diameter and low pressure winding 3 of auxiliary winding 2 Internal diameter it is identical, the outer diameter of auxiliary winding 2 and the outer diameter of low pressure winding 3 match.
Transformer core has been manufactured first, and assembly supports the insulating part of winding on iron core, is then set with auxiliary winding; Insulating end ring is assembled in the top of auxiliary winding, is set with low pressure winding later;Insulating cylinder and support are assembled in the outside of low pressure winding Item is set with high-voltage winding later;Remaining body insulating part is installed, then completes the other assembly works of transformer by process;It installs After transformer, transformer various performance parameters are measured by respective standard, between auxiliary winding and high-voltage winding and low pressure winding Short-circuit impedance can reach 300% or more.
In practical applications, low pressure winding and high-voltage winding concentric type are sleeved on iron core, and the height of two windings is basic It is equal, and auxiliary winding is sleeved on the outside of iron core and the lower section of low pressure winding, and the height dimension of auxiliary winding 30~ Within the scope of 100mm;The internal diameter of auxiliary winding is identical as low pressure winding, but outer diameter can be different.
The utility model applicable elements: the capacity of auxiliary winding be less than or equal to transformer rated capacity 10%, auxiliary around Group is all larger than 300% to the short-circuit impedance of low pressure winding and high-voltage winding.In this way, auxiliary winding can not only be normally into substation Load power supply, moreover it is possible to guarantee the short-circuit strength of transformer.

Claims (2)

1. a kind of band auxiliary winding transformer, it is characterised in that: include iron core (1), auxiliary winding (2), low pressure winding (3) and height It presses winding (4), the low pressure winding (3) and high-voltage winding (4) concentric type are sleeved on iron core (1), low pressure winding (3) and high pressure Insulating cylinder and stay are equipped between winding (4);Auxiliary winding (2) is sleeved on the outside of iron core (1) by support insulators, is located at The lower section of low pressure winding (3).
2. a kind of band auxiliary winding transformer according to claim 1, it is characterised in that: the height of the auxiliary winding (2) For degree within the scope of 30~100mm, the internal diameter of auxiliary winding (2) is identical as the internal diameter of low pressure winding (3), outside auxiliary winding (2) Diameter and the outer diameter of low pressure winding (3) match.
CN201920721772.2U 2019-05-20 2019-05-20 A kind of band auxiliary winding transformer Active CN209591768U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920721772.2U CN209591768U (en) 2019-05-20 2019-05-20 A kind of band auxiliary winding transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920721772.2U CN209591768U (en) 2019-05-20 2019-05-20 A kind of band auxiliary winding transformer

Publications (1)

Publication Number Publication Date
CN209591768U true CN209591768U (en) 2019-11-05

Family

ID=68345446

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920721772.2U Active CN209591768U (en) 2019-05-20 2019-05-20 A kind of band auxiliary winding transformer

Country Status (1)

Country Link
CN (1) CN209591768U (en)

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