Dry-type transformer with overload alarm system inside

The invention relates to the technical field of dry-type transformers, and particularly relates to a dry-type transformer with an overload alarm system inside. The dry-type transformer comprises a transformer, wherein a transparent shell is arranged on one side of an outer cylinder of the transformer, a plurality of supporting columns are fixedly connected between the transformer and the transparent shell, the lower end of the transparent shell is fixedly connected with a control tube, an intercepting valve is arranged in an inner cavity of the control tube, one side of the control tube is fixedly connected with a hard tube, an insulating box is fixedly embedded into the inner wall of the outer cylinder of the transformer, one end of the insulating box extends into an inner cavity of the transformer, and one side of the insulating box is fixedly connected with a grounding wire. According to the invention, the liquid column state in the transparent shell is used for feeding back information in the transformer,