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Tanks for transformers or inductors filled with liquids

A technology of transformers and inductors, which is applied in the direction of transformer/inductor housing, transformer/inductor cooling, transformer/inductor components, etc. It can solve the problem that the sound insulation of transformers and inductors cannot be satisfactorily solved

Active Publication Date: 2017-10-31
西门子能源全球两合公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The sound insulation of larger power transformers and inductors has not been satisfactorily resolved

Method used

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  • Tanks for transformers or inductors filled with liquids
  • Tanks for transformers or inductors filled with liquids
  • Tanks for transformers or inductors filled with liquids

Examples

Experimental program
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Embodiment Construction

[0036] figure 1 A tank 1 is shown, the shell of which is designed in the manner of a double-walled tank. The two tank shells 2 , 5 are formed by an outer tank shell 2 and an inner tank shell 5 , which are arranged at a distance 4 from one another. Between the two shells 2 , 5 there is a circumferential gap 6 which according to the invention is filled with a plastic or polymer material 7 . The outer tank shell 2 tapers downwards to a bottom part 3 . The bottom part 3 is supported on elastic supports 19 on a base. An electrical connection 23 (Durchführungen (through)) is arranged on the cover 8 . Before the transformer / inductor is put into operation, a negative pressure is usually generated in the inner chamber 9 . In order to ensure the mechanical stability of the tank under vacuum, different reinforcements are installed on the tank in the interior as well as in the exterior, where, in figure 1 For the sake of overview, only the externally arranged reinforcement elements 1...

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Abstract

The invention relates to tanks for transformers or inductors filled with liquids, comprising: a) an outer tank shell (2) having a bottom portion (3); b) an outer tank shell (2) separated by a distance ( 4) a surrounding inner tank shell (5), wherein the outer and inner tank shells (2, 5) are made of metal; c) a plastic or polymer material (7), which is passed through the outer tank The inner surface (14) of the shell (2) and the inner surface (13) of the inner tank shell (5) define the gap (6) and at least partially fill the gap (6), wherein the plastic or polymer material and its attachment to the inner surfaces (13, 14) are arranged such that d) shear forces are transmitted between the inner and outer tank shells (2, 5) and e) in operation by a The transmission of structure-borne sound generated by the utility ( 10 ) arranged in the interior ( 9 ) is blocked between the inner tank shell ( 5 ) and the outer tank shell ( 2 ).

Description

technical field [0001] The invention relates to a tank for liquid-filled transformers or inductors, such as are used in energy supply networks. Background technique [0002] Electrical transformers or inductors used in power supply networks generally consist of a magnetic core with electrical windings contained in a tank filled with an insulating and cooling liquid, such as oil. [0003] A disadvantage is that during operation of the transformer or inductor, the magnetic core vibrates the surrounding insulating and cooling liquid through magnetostriction and also forces acting on the individual conductors of the winding. These vibrations propagate into the insulating and cooling liquid and excite the tank walls to generate unwanted sound radiation. [0004] In order to reduce the operating noise of transformers or inductors, passively acting measures have long been known. [0005] It is known, for example, from DE 23 09 564 to cover the outer wall of a transformer tank wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/02H01F27/12H01F27/33
CPCH01F27/12H01F27/33H01F27/025H01F27/10
Inventor F.阿梅茨伯格A.霍泽尔H.弗雷加特纳H.雷奇伯格H.肖伯
Owner 西门子能源全球两合公司
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