Method for repairing core of rack transformer

Abstract

The invention discloses a method for repairing the core of a rack transformer and belongs to the field of power maintenance. The method is characterized by comprising: (1) installing a gate-shaped support core hoisting tool on the channel steel on the bottom of the rack transformer for repairing the core; (2) fixing the core of the rack transformer by using the gate-shaped support core hoisting tool in the step (1); (3) hoisting the core of the rack transformer by using the gate-shaped support core hoisting tool in the step (1); (4) placing the hoisted rack transformer at an appropriate position; (5) enabling a worker to check and repair the core of the rack transformer; (6) hoisting the repaired core of the rack transformer over the rack transformer by using the gate-shaped support core hoisting tool, and installing repaired core of the rack transformer; and (7) detaching the gate-shaped support core hoisting tool to complete the maintenance. The method improves overhaul efficiency of the core of the rack transformer, decreases labor intensity, and reduces an operation safety risk and repairing cost.

Description

technical field [0001] The invention belongs to the field of electric power transmission equipment, and in particular relates to a maintenance method for a suspension core of a bench-type transformer. Background technique [0002] In the practical application of transformers, due to various reasons, the probability of failure of distribution transformers increases and the reliability of operation decreases. In order to ensure the safe and stable operation of transformers, it must be repaired by lifting cores, and according to the maintenance guidelines for power transformers: Generally, transformers should be inspected for hanging cores every 5-10 years. At present, three methods are generally used for the maintenance of transformer hanging cores: crane, manual lifting or returning to the factory. The coefficient is low; the disadvantages of the manual lifting method are: due to the small space of the bench-type transformer, the working hours are long, the labor cost is high...

AI Technical Summary

Problems solved by technology

[0002] In the practical application of transformers, due to various reasons, the probability of failure of distribution transformers increases and the reliability of operation decreases. In order to ensure the safe and stable operation of transformers, it must be repaired by lifting cores, and according to the maintenance guidelines for power transformers: Generally, transformers should be inspected for hanging cores every 5-10 years. At present, three methods are generally used for the maintenance of transformer hanging cores: crane, manual lifting or returning to the factory. The coefficient is low; the disadvantages of the manual lifting method are: due to the narrow space of the bench-type transformer, the working hours are long, the labor cost is high, and the efficiency is low; the defects of the return method are: the maintenance time is long and the maintenance cost is too high

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