A dust-proof and heat-dissipating device and a dry-type transformer using the device

Abstract

The invention provides a dust-proof cooling device, which comprises a fan, a dustproof device, a fan bracket fixing plate and a fan bracket, wherein the dustproof device and the fan bracket are arranged on the fan bracket fixing plate; the dustproof device is arranged at the upper part of the fan bracket; and the fan is arranged on the fan bracket and the dustproof device. The invention further provides a dry-type transformer of using the dust-proof cooling device. The dustproof device and the fan are arranged at the upper part of the transformer core; a ventilation opening is formed in the bottom of a box wall; air outlets are formed in the side walls of a box cover; and an insulating layer and a sound absorbing layer are arranged at the inner side wall of a box body of the transformer. Through the top-blown fan arranged on an upper clamping part of a transformer core, a louvered vent arranged in the bottom of the box wall and rectangular air outlets arranged in the surrounding peripheral walls of the box cover, the dust-proof cooling device plays a dustproof role, the problem of accumulation of dust on the core is effectively solved, the cooling effect of the transformer is strengthened and temperature rise of the transformer can be reduced to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a dust-proof and heat-dissipating device and a dry-type transformer using the device. Background technique [0002] Dry-type transformers, simply put, refer to transformers whose iron core and windings are not immersed in insulating oil. Cooling methods are divided into natural air cooling (AN) and forced air cooling (AF). When natural air cooling, the transformer can run continuously at the rated capacity for a long time; when forced air cooling, the output capacity of the transformer can be increased by 50%, which is suitable for intermittent overload operation, or emergency accident overload operation; due to load loss and impedance during overload The voltage increases greatly, and it is in a non-economic operation state, so it should not be operated continuously for a long time. [0003] With the continuous expansion of the application technology field, the applicatio...

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Problems solved by technology

[0006] In order to overcome the problems of poor dust-proof and heat-dissipating effect of transformers and high processing cost in the prior art, the present invention provides a dust-proof and heat-dissipating device with simple structure, easy processing, cost saving and low temperature rise, and a dry-type transformer using the device. transformer

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