Hot air flow guide device of clamping part of dry-type transformer

Abstract

The invention discloses a hot air flow guide device of a clamping part of a dry-type transformer. The hot air flow guide device comprises an upper clamping part and is characterized in that a long hole is formed in the lower end face of the upper clamping part; a temperature sensor is arranged in a winding; a cooling device and a controller are arranged under a lower clamping part; the temperature sensor is connected with the controller; and the controller is connected with the cooling device. Compared with the prior art, the hot air flow guide device has the beneficial effects that the long hole is formed in the lower end face of the upper clamping part, and can be used for reinforcing the capability of conducting hot air of the upper clamping part, so that the temperature of the transformer can be easily reduced and the service life of the transformer is prolonged; meanwhile, the strength of the upper clamping part is also guaranteed; and furthermore, the temperature sensor, the cooling device and the controller are matched with one another, so that the heat dissipation capability of the transformer can be greatly improved and the hot air flow guide device can be intelligently regulated and controlled according to the temperature of the winding.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, and relates to a hot air guide device for a dry-type transformer clip. Background technique [0002] As one of the major equipment for power transmission and transformation, the transformer will generate power loss during operation due to the current flow of each coil conductor and the existence of electromagnetic field, mainly load loss, no-load loss and additional loss. These losses will be converted into heat transfer to the surrounding medium, causing the transformer to heat up and increase in temperature. However, with the increase of transformer capacity, the leakage magnetic flux increases, and the corresponding stray loss increases; the increase in transformer size and capacity is not proportional to the increase in local stray loss; large-capacity transformers have large currents, especially the parallel wires of low-voltage windings If there is a circulating current passin...

AI Technical Summary

Problems solved by technology

Since the upper clamp is relatively close to the coil at this time, it is not conducive to the circulation of hot air

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