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Amorphous alloy oil-immersed transformer employing micro-perforated panels

An oil-immersed transformer and micro-perforated plate technology, applied in the field of transformers, can solve problems such as high noise and achieve the effect of coordination between operation and environment

Active Publication Date: 2016-05-25
JIANGXI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because the magnetostriction of the amorphous alloy transformer core is larger than that of the traditional silicon steel sheet distribution transformer, the amorphous alloy transformer has higher noise

Method used

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  • Amorphous alloy oil-immersed transformer employing micro-perforated panels

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Embodiment Construction

[0035] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides an amorphous alloy oil-immersed transformer employing micro-perforated panels. The amorphous alloy oil-immersed transformer comprises a specially designed transformer oil tank, the micro-perforated panels, a hollow cavity, shock pads and a high-voltage bushing, a low-voltage bushing and a high-voltage tap switch, wherein the specially designed micro-perforated panels are arranged in the oil tank; the hollow cavity is used for serving as an acoustic impedance; one shock pad is arranged between a transformer body and the tank bottom; the other shock pad is arranged between a hanger plate and a clamp; transformer oil is used as an insulating and cooling medium; the high-voltage bushing, the low-voltage bushing and the high-voltage tap switch are arranged on a tank cover; and a sound absorber comprises one or more micro-perforated panels and the single hollow cavity or a plurality of hollow cavities. The micro-perforated panels form a helmholtz resonant cavity after being installed on the inner side wall of the amorphous alloy oil-immersed transformer oil tank, can absorb energy of vibration caused by iron core magnetostriction and coil vibration caused by electrodynamic force, and finally reduce the noise. Due to the adoption of an amorphous alloy iron core, the amorphous alloy oil-immersed transformer can save more energy than a traditional transformer; the oil tank provided with the micro-perforated panels can absorb vibration of the maximum amplitude corresponding to the iron core vibration frequency; and the noise of the micro-perforated panels is reduced.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to an amorphous alloy oil-immersed transformer using a micro-perforated plate. Background technique [0002] At present, power users at home and abroad are affected by the pressure of energy saving and emission reduction, and amorphous alloy transformers are more and more concerned and used by people. Although the amorphous alloy transformer has the advantage of very low no-load loss, due to its sensitivity to stress, the amorphous alloy core cannot be fixed by clamps, and the noise caused by hysteresis stretching is inevitable. The noise nuisance problem of amorphous alloy transformers has always been the primary factor hindering the promotion and application of amorphous alloy transformers. [0003] The noise of the amorphous alloy oil-immersed transformer currently produced is mainly caused by the vibration caused by the hysteresis of the amorphous core. In addition, when t...

Claims

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Application Information

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IPC IPC(8): H01F27/25H01F27/14H01F27/33
CPCH01F27/14H01F27/25H01F27/33
Inventor 刘道生严慕秋王仕会刘飞飞
Owner JIANGXI UNIV OF SCI & TECH
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