Dry thin-film condenser applied in pulse filtering field

Abstract

The invention relates to the field of high-voltage pulse application, in particular to a dry film capacitor applied in the field of pulse dedusting, which can meet the application conditions of high voltage, high current and high charge-discharge frequency. The dry film capacitor comprises a case, wherein the case is provided with potting compounds a left core unit and a right core unit, an insulating board is arranged between the left core unit and the right core unit, both the left core unit and the right core unit are connected to the electrode by welding copper plate, both the left core unit and the right core unit comprise two groups of welding-connected single-core units welded respectively, the single-core unit is at least comprised of four capacitor cores in series, the capacitor core comprises at least ten metallized films, the left core unit and the right core unit are connected in series, the metallized films on the capacitor core are plated with aluminum film, and two end edges of the aluminum film are thickened layer.

Description

technical field [0001] The invention relates to the field of high-voltage pulse applications, in particular to a dry film capacitor used in the field of pulse dust removal. Background technique [0002] With the continuous development of my country's economy, the pollution problem is becoming more and more serious, and my country's economic development policy is gradually tilting towards the environmental protection industry. With the country's increasing demand for energy conservation and environmental protection, and due to the development of power electronics technology, the electrostatic precipitator industry has gradually developed from traditional power frequency power supplies to more advanced high-frequency power supplies, and then to more efficient and energy-saving high-voltage pulse electrostatic precipitators. Can achieve better energy saving and environmental protection effect. [0003] In order to cooperate with the development of high-voltage pulse electrosta...

AI Technical Summary

Problems solved by technology

[0005] Although conventional film capacitors have good adaptability, their operating voltage is generally below 3KV. To achieve an operating voltage of 80kV, a large number of capacitors must be connected in series, and at the same time, it cannot meet the requirements of charging and discharging frequency of 10~50KHz, and discharge current of 10KHz. 100~500A use requirements

[0006] Generally, the high-voltage pulse capacitor adopts the structure of metal foil oil type, but the disadvantage of this kind of product is that the volume and weight are too large, and there is a risk of oil leakage, which is not conducive to the stable and reliable operation of the equipment.

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