An intelligent dry-type distribution transformer

Abstract

The invention relates to the technical field of transformers, and discloses an intelligent dry-type distribution transformer, which includes a fixed base, fans are arranged inside both sides of the fixed base, and a dry-type transformer group is fixedly installed in the middle of the top of the fixed base , and the top of the dry-type transformer group is fixedly installed with a mounting bracket, and the two sides of the top of the mounting bracket are respectively provided with a control mechanism and a feedback mechanism, and the feedback mechanism includes a fixed sleeve. For the intelligent dry-type distribution transformer, for the setting of elastic airbags, conductive heating bulbs and current wires, when the dry-type transformer is in an overloaded state, the conductive heating bulbs will generate more heat, thereby forcing the elastic airbags to generate heat. Expansion until it ruptures due to excessive expansion, causing the conductive heating ball to fall off due to the loss of the support valve of the fixing cable, and then cut off the circuit connection between the two sets of current wires to realize the tripping action of the dry-type transformer.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to an intelligent dry-type distribution transformer. Background technique [0002] Dry-type transformer is a kind of transformer whose core and winding are not immersed in insulating oil. Therefore, compared with wet-type transformers, it has fireproof and explosion-proof characteristics, and has the advantages of strong short-circuit resistance, high operating efficiency and small size. It is widely used in lighting, machining and other fields. [0003] Among them, dry-type transformers are divided into two forms: natural air cooling and forced air cooling. In the process of normal operation, natural air cooling is adopted, and the continuity of intermittent overload or emergency handling During overload operation, with the increase of its output power and the increase of heat, the simple air cooling measures can no longer meet its heat dissipation needs. Therefore, forced ai...

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Problems solved by technology

[0005] However, the temperature control system in the existing dry-type transformer belongs to the point control method for the control and start of the forced air cooling mechanism, which starts when the temperature exceeds the set threshold; shuts down when the temperature is lower than the set threshold, and cannot Adjust the wind force of the forced air cooling mechanism on the dry-type transformer according to the temperature change in the dry-type transformer, resulting in poor heat dissipation effect of the dry-type transformer. The temperature control system in the dry-type transformer has a complex structure and various trigger mechanisms, and there are many control systems and trigger mechanisms, which greatly affect its stability during operation.

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