Dry-type transformer blower fan maintaining device

Abstract

A dry-type transformer blower fan maintaining device comprises a maintenance trolley and a maintenance bracket. The maintenance trolley comprises a seat, a U-shaped slide carriage and a control unit. Furthermore the lower end of the seat is provided with universal wheels. The maintenance bracket comprises a blower fan bracket and a supporting plate. A heat radiating fan is fixed on the supporting plate. The blower fan bracket is fixed below a transformer coil. A guiding block on the maintenance trolley matches a guiding trough on the maintenance bracket. By means of structure setting for the blower fan bracket, designing the maintenance trolley which matches the blower fan bracket structure, and endowing a telescopic structure to the maintenance trolley, operations of detachment of the heat radiating fan from the transformer coil, conveying the heat radiating fan to a safe position for maintenance, and conveying the heat radiating fan back after maintenance, etc. can be realized in a range which is separated from the transformer coil within a certain distance. In the whole maintenance process, not only is power supply stoppage realized, but also operation of maintenance personnel in a safe segment is ensured always. Overall, the dry-type transformer blower fan maintaining device can realize safe and high-efficiency live maintenance operation.

Description

technical field [0001] The invention relates to the technical field of power transmission and transformation, in particular to a dry-type transformer fan maintenance device used in the maintenance process of a dry-type transformer cooling fan. Background technique [0002] The heat dissipation fan of the dry-type transformer is installed under the transformer coil to cool down the transformer coil. Since there is at least 10KV high-voltage electricity near the transformer, it is necessary to cut off the power transmission before maintenance when the cooling fan is damaged, which will inevitably cause a large-scale power supply interruption and affect production and life. At the same time, because the cooling fan is fixed under the transformer coil, it needs to be dismantled before maintenance, and then reinstalled and fixed after the maintenance. The whole process takes a long time, and the maintenance will be limited by space, which further reduces the maintenance efficienc...

AI Technical Summary

Problems solved by technology

Since there is at least 10KV high-voltage electricity near the transformer, it is necessary to cut off the power transmission before the maintenance when the cooling fan is damaged, which will inevitably cause a large-scale power supply interruption and affect production and life.

At the same time, because the cooling fan is fixed under the transformer coil, it needs to be disassembled before maintenance, and then reinstalled and fixed after the maintenance. The whole process takes a long time, and the maintenance will be limited by space, which further reduces the maintenance efficiency.

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