Insulation protection device for unfilled transformer

Abstract

The invention discloses an insulation protection device for an unfilled transformer. The insulation protection device comprises a pit foundation and a transformer foundation, wherein the transformer is arranged on the transformer foundation; a seal plate is arranged on the transformer foundation correspondingly to the transformer; a seal cover body is movably arranged on the seal plate; a gas injection opening is formed in the seal cover body and is connected with an air drying mechanism; and an inlet and an outlet and an insulating oil outlet are formed in the seal cover body. The insulation protection device can carry out insulating protection on the transformer after insulating oil of the transformer is discharged; the inside of the transformer is prevented from being damaged by relatively humid air; the operation is simple and convenient; and the sealing effect is relatively good.

Description

technical field [0001] The invention relates to the technical field of substation infrastructure construction, in particular to an insulation protection device for a non-oil-filled transformer. Background technique [0002] When the transformer is in normal operation, it is filled with qualified transformer oil, which ensures that the iron core and coil inside the body are not in contact with the air, and prevents the insulation of the body from being damp. However, the main transformer must release all the transformer oil during maintenance. In order to ensure good insulation of the body, the exposure time of the body insulation of the main transformer in the air is stipulated. When the humidity of the air is 65%-75%, it shall not exceed 12 hours, and the humidity of the air shall not exceed 16 When the humidity of the air is greater than 75%, the transformer cannot be repaired, especially in rainy days, the transformer cannot be repaired. In the rainy weather in the south...

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Problems solved by technology

But this method has disadvantages. If the transformer is not well sealed, a large amount of moisture from the outside will continuously enter the body of the transformer, which will not only fail to maintain the insulation of the body, but will be harmful to the insulation of the main transformer.

[0004] Moreover, in the prior art, the transformer is generally installed outdoors, and the environment has a greater impact. In summer, it is necessary to ensure the internal sealing state of the transformer, and it is also necessary for the staff to carry out maintenance inside. The high temperature is a great challenge to the health of the staff. There are many staff members who fainted due to heatstroke during the maintenance operation, which is not conducive to the smooth progress of the maintenance work and the health of the staff

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