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Oil-immersed power transformer

A voltage transformer and oil-immersed technology, applied in transformer/inductor casing, transformer/inductor cooling, transformer/inductor magnetic core, etc., can solve the problems of less materials, unsuitable transformers, high cost of liquid metal, etc.

Inactive Publication Date: 2016-09-07
杨林娣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

——However, the problem of this solution is that the cost of using liquid metal is high, there are few materials to choose from, and the resistance is large, and the heat is serious when the power is large, so it is not suitable for the use of transformers for substation.

Method used

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  • Oil-immersed power transformer
  • Oil-immersed power transformer
  • Oil-immersed power transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] according to Figure 1 to Figure 8 As shown, this embodiment is an oil-immersed electric voltage transformer, which includes a box body 1 with an open upper end, a cover body 2 fixedly and sealingly connected to the upper end of the box body, an iron core 6 fixedly installed at the bottom of the box body, and a fixedly installed Winding assembly 5 on iron core.

[0065] The iron core includes three longitudinally arranged core columns and horizontal iron yokes connected to the upper and lower ends of each core column; the lower part of the iron core at the lower end of the iron core is connected with a base 61, and the base is connected to the box body. Bottom connection.

[0066] The winding assembly includes a ceramic base 50 and three sets of high-voltage winding coils 55 and three sets of low-voltage winding coils 56 integrally formed in the ceramic base. The coil is formed on the outer periphery of the port, and the high-voltage winding coil is located on the out...

Embodiment 2

[0086] In this embodiment, on the basis of Embodiment 1, the oil pump is further improved, specifically: combining Figure 9 to Figure 16 As shown, the oil pump 8 includes a centrifugal pump housing 82, an impeller 85 installed in the centrifugal pump housing, a piston pump housing 83 fixedly connected to one end of the centrifugal pump housing, and a piston member 88 slidingly installed in the piston pump housing. , and a motor 81 fixedly connected to the other end of the centrifugal pump casing for driving the impeller and the piston.

[0087] The motor is connected with a connecting frame 812, and the outer wall of the centrifugal pump casing is integrally formed with a connecting head 822, and the connecting head and the connecting frame are connected by screws; the side wall of the centrifugal pump casing is formed with a liquid outlet 821.

[0088] A drive turntable 811 is connected to the output shaft of the motor. The drive turntable is close to but not in contact wit...

Embodiment 3

[0104] according to figure 1 , figure 2 , Figure 9 to Figure 16 As shown, this embodiment is an oil-immersed electric voltage transformer, which includes a box body 1 with an open upper end, a cover body 2 fixedly and sealingly connected to the upper end of the box body, an iron core 6 fixedly installed at the bottom of the box body, and a fixedly installed Winding assembly 5 on iron core.

[0105] The iron core includes three longitudinally arranged core columns and horizontal iron yokes connected to the upper and lower ends of each core column; the lower part of the iron core at the lower end of the iron core is connected with a base 61, and the base is connected to the box body. Bottom connection.

[0106]The bottom of the box body is fixedly connected with a bracket 10 arranged horizontally, and the side of the box body is connected with a plurality of heat dissipation inner tubes 12 which are arranged vertically and are U-shaped as a whole. The outer side is also co...

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Abstract

The invention discloses an oil-immersed power transformer. The power transformer comprises a box body of which upper end is opened, a cover body which is in fixed and sealed connection with the upper end of the box body, an iron core which is fixedly mounted at the bottom in the box body, and a winding assembly which is fixedly mounted on the iron core. The winding assembly comprises a ceramic base body, and three sets of high voltage winding coils and three sets of low voltage winding coils. The winding coils are moulded in the ceramic base body integrally. The ceramic base body is prepared by a 3D printing method. After the ceramic base body is moulded by sintering, copper water is injected into coil channels, thereby moulding the winding coils. According to the power transformer, the processes of winding the coils and moulding the ceramic base body manually are eliminated; the processing precision is ensured; and the power transformer is applicable to the industrial batch production.

Description

technical field [0001] The invention belongs to the field of distribution transformer structure, and in particular relates to an oil-immersed power transformer structure with good heat dissipation. Background technique [0002] The Chinese Invention Patent No. 201010169512.2 discloses a fully enclosed ceramic sintered dry-type transformer coil and its manufacturing method, including a conductor and an insulator. The special feature is that the conductor is a bare conductor and the insulator is a ceramic; The manufacturing method of the closed ceramic sintered dry-type transformer coil adopts the following process steps: (1) coil winding: the outer surface of the bare conductor is glazed and then wound into a coil; (2) sealed coil: the inter-turn, interlayer, The segments and the coils are completely sealed with ceramic clay; the ceramic clay or porcelain clay is used to wrap the coil tightly and compact it into a green body, and then glaze it; , and form an integral bod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/24H01F27/30H01F27/32H01F27/02H01F27/08H01F27/14C04B35/10C04B35/622C04B35/634C04B35/63F04B23/10F04B17/03F04B53/14F04B53/10
CPCH01F27/24C04B35/10C04B35/622C04B35/6316C04B35/63404C04B2235/6026F04B17/03F04B23/10F04B53/10F04B53/14H01F27/02H01F27/025H01F27/085H01F27/14H01F27/306H01F27/324
Inventor 杨林娣
Owner 杨林娣
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