Power transformer with leakage-preventing double-protection function

Abstract

The invention discloses a power transformer with a leakage-preventing double-protection function. The power transformer structurally comprises an oil conservator, an explosion-proof pipe, high-pressure bushings, an oil tank and heat dissipation pipes; the explosion-proof pipe is arranged between the oil conservator and the oil tank; more than two high-voltage bushings are arranged on the oil tank;the heat dissipation pipes are matched with the oil tank; the explosion-proof pipe is composed of an explosion-proof joint, a glass film and a sealing film; the explosion-proof joint and the explosion-proof pipe are integrally welded; the glass film and the sealing film are both arranged in the explosion-proof pipe and are compactly attached to each other; the sealing film comprises inner connecting plates, clamping openings and an elastic shaft; each inner connecting plate and the corresponding clamping opening are of an integrated clamping groove structure shaped like a Chinese character "ou"; and the elastic shaft is arranged between the upper end opening and lower end opening of the clamping openings in a matched mode. According to the power transformer with the leakage-preventing double-protection function of the invention, the sealing film wraps the outer surface of the glass film, so that the sealing performance of the explosion-proof pipe is improved through dual protection; and meanwhile, with the sealing film adopted, moisture can be prevented from entering the broken glass pipe easily.

Description

technical field [0001] The invention relates to the field of transformers, in particular to a leakage-proof and re-protected power transformer. Background technique [0002] A transformer is an electrical component used to transform voltage, current, or impedance. When transmitting power over long distances, a transformer can be used to increase the voltage sent by the power station to reduce losses during power transmission, so as to facilitate long-distance power transmission. , as a transformer that is widely used in power equipment at present-three-phase transformers, in the process of transmission and distribution of electric energy, power transformers are the core of energy conversion and transmission, and safety protection measures are particularly important. The internal pressure of the transformer is too high. In order to avoid the rupture of the transformer oil tank, some transformers are equipped with explosion-proof tubes inside. The glass film in the explosion-p...

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Problems solved by technology

[0002] A transformer is an electrical component used to transform voltage, current, or impedance. When transmitting power over long distances, a transformer can be used to increase the voltage sent by the power station to reduce losses during power transmission, so as to facilitate long-distance power transmission. , as a transformer that is widely used in power equipment at present-three-phase transformers, in the process of transmission and distribution of electric energy, power transformers are the core of energy conversion and transmission, and safety protection measures are particularly important. The internal pressure of the transformer is too high. In order to avoid the rupture of the transformer oil tank, some transformers are equipped with explosion-proof tubes inside. The glass film in the explosion-proof tube is easily broken due to vibration during the operation of the transformer, and the glass cannot be replaced in time. Moisture therefore enters the oil tank, making the insulation The oil is damp, the insulation level is reduced, and the safety of the equipment is endangered

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