Outdoor dry-type transformer and using method thereof

Abstract

The invention belongs to the technical field of transformers, and provides an outdoor dry-type transformer and a using method thereof. The outdoor dry-type transformer comprises a transformer body and a transformer shell arranged outside the transformer body; a wall bushing connected with the transformer body is arranged on the outer wall of the transformer shell; a temperature controller and a ventilation fan which are electrically connected are arranged at the top end in the transformer shell, and heat dissipation holes are formed in the position, matched with the ventilation fan, of the transformer shell. In the using process, the outdoor dry-type transformer is moved based on a hoisting support arranged on the transformer shell and a hoisting shaft arranged on the shell base; after the position of the dry-type transformer is fixed, an external cable and the transformer body are connected through the high-voltage wall bushing and the low-voltage wall bushing; under the action of the temperature controller, the temperature of the outdoor dry-type transformer is monitored in real time, and the working state and the air outlet amount of the ventilation fan are automatically adjusted according to the set temperature requirement.

Description

technical field [0001] The disclosure belongs to the technical field of transformers, and in particular relates to an outdoor dry-type transformer and a usage method thereof. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] At present, oil-immersed transformers are generally used outdoors, but oil-immersed transformers have the problem of easy oil leakage, and the maintenance workload is heavy. With the advantages of strong overload capacity, flame retardant and self-extinguishing, no pollution to the environment, and maintenance-free, dry-type transformers can go deep into the load center, and are often used in some indoor places with high requirements for fire protection, explosion protection, and overload. However, due to the structural characteristics of the dry-type transformer body, it cannot be used outdoors, and one of the key fac...

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Problems solved by technology

However, due to the structural characteristics of the dry-type transformer body, it cannot be used outdoors, and one of the key factors that mainly restricts the outdoor use of dry-type transformers is that the enclosure protection level is difficult to meet the requirements

[0004] According to the inventor's understanding, the existing outdoor dry-type transformers are difficult to realize in terms of casing design and production.

An outdoor dry-type transformer (patent, application number: 201710551448.6) has no casing in the design, and is suitable for outdoor requirements by adding a protective cavity outside the dry-type transformer itself, but it is difficult to manufacture and high in cost, and it is not suitable for widespread promotion; Outdoor dry-type transformers (patent 201811163275.1) are equipped with a protective cover and a protective shell on the outer wall of the transformer body, which is equivalent to two layers of protective shells. It has better protection performance for dry-type transformers, but the production is difficult and costly.

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