Oil-type direct current filter capacitor

Abstract

The invention discloses an oil-type direct current filter capacitor, which comprises an upper capacitor core, a lower capacitor core, a metal shell, a metal shell cover, an anode leading-out terminal, a cathode leading-out terminal, an anode wafer and a cathode wafer, wherein each of the anode wafer and the cathode wafer comprises an upper wafer, a lower wafer and a vertical conducting strip for connecting the upper wafer and the lower wafer, the anode of the upper capacitor core is upward, the cathode of the upper capacitor core is downward, the anode of the lower capacitor core is downward, the cathode of the lower capacitor core is upward, the upper wafer of the anode wafer is positioned at the bottom of the anode leading-out terminal and at the top of the anode of the upper capacitor core, the lower wafer of the anode wafer is positioned at the bottom of the anode of the lower capacitor core, the upper wafer of the cathode wafer is positioned at the bottom of the cathode leading-out terminal, and the lower wafer of the cathode wafer is positioned at the bottom of the cathode of the upper capacitor body and at the top of the cathode of the lower capacitor core. The oil-type direct current filter capacitor has the advantages of efficient and convenient assembly.

Description

technical field [0001] The invention relates to an oil-type DC filter capacitor, which belongs to the technical field of filter capacitor production and manufacture. Background technique [0002] DC filter capacitors are widely used in high-voltage direct current transmission (HVDC), static var compensation (SVC), wind power generation, electric locomotive traction, AC and DC power transmission, excitation, high-voltage soft start, high-voltage frequency conversion, rectifiers, various mechanical lifting The inverter of the equipment; it can effectively filter the additional ripple cost of the voltage and smooth the waveform. Oil-type filter capacitors The single capacitors inside the capacitors are all equipped with protective devices, which are safe and easy to install. [0003] DC filter capacitors generally use epoxy resin as the potting material. After several years of use, some capacitors will separate the epoxy resin potting material from the shell, the exposed epoxy...

AI Technical Summary

Problems solved by technology

[0004] The present invention is aimed at the deficiencies of the existing technology, and provides an oil-type DC filter capacitor, which improves the structure of the existing oil-type DC filter capacitor and overcomes the problems of easy separation of the pouring material and the shell and easy deterioration of the capacitor performance, and satisfies practical use. Require

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