Filter capacitor for converter station

A filter capacitor, filter capacitor technology, applied in the direction of feed-through capacitors, anti-noise capacitors, fixed capacitor terminals, etc., can solve the problems of reducing service life, economic losses, damage to the structure of the capacitor body, etc., and achieve the effect of simple setting

Pending Publication Date: 2022-07-08
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Continuous noise has a huge impact on the surrounding environment. Long-term excessive vibration will cause great damage to the structure of the capacitor body, seriously reduce its service life or even cause failure, resulting in huge economic losses

Method used

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  • Filter capacitor for converter station

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Embodiment 1

[0020] Embodiment 1: A filter capacitor for a converter station, see figure 1 , including a vacuum shell 4, a filter capacitor module 1 and a vibration damping device.

[0021] The airtightness of the vacuum housing 4 satisfies that the smaller the degree of vacuum, the better. An extraction electrode is provided on the vacuum shell 4 . In this embodiment, the vacuum casing 4 is an insulating casing. The insulating shell has poor weather resistance. In other embodiments, the vacuum shell 4 can also be a metal shell, and the metal shell is provided with a lead-out electrode opening, and the lead-out electrode is arranged at the lead-out electrode opening and is insulated from the metal shell through an insulating member.

[0022] The filter capacitor module 1 is arranged in the vacuum shell 4 , and the terminals of the filter capacitor module 1 are electrically connected to the lead-out electrodes through flexible wires 5 respectively. The filter capacitor module 1 is non-r...

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Abstract

The invention relates to a filter capacitor for a converter station, which comprises a vacuum shell, a filter capacitor module and a vibration damper, the vacuum shell is provided with an extraction electrode, the filter capacitor module is arranged in the vacuum shell, the wiring end of the filter capacitor module is electrically connected with the extraction electrode through a flexible lead in a matched manner, and the vibration damper is arranged in the vacuum shell. The vibration reduction device comprises an axial fixing radial reset piece and a radial damping elastic piece, the axial end of the filter capacitor module is connected with the inner wall of the vacuum shell through the axial fixing radial reset piece, the radial damping elastic piece comprises a balance weight ring and a radial elastic piece, the balance weight ring is arranged on the filter capacitor module in a sleeving mode, and the radial elastic piece is arranged on the inner wall of the vacuum shell. The balance weight ring is arranged in the vacuum shell and connected with the filter capacitor module through the radial elastic piece, and a gap is formed between the balance weight ring and the inner wall of the vacuum shell, so that the balance weight ring is not connected with the vacuum shell when the filter capacitor module works. The filter capacitor for the converter station can reduce noise generated when the filter capacitor for the converter station works.

Description

technical field [0001] The invention relates to the technical field of filter capacitors, in particular to a filter capacitor for a converter station. Background technique [0002] It is pointed out in the technical descriptions of CIGRE and IEC on the noise of converter station equipment that the noise power level of filter capacitors can reach 105dB(A), and that of filter reactors can reach 90dB(A). Continuous noise has a huge impact on the surrounding environment. Long-term excessive vibration will cause great damage to the structure of the capacitor body, seriously reduce its service life and even cause failure, resulting in huge economic losses. In addition, the converter station is generally evaluated according to the Class II acoustic environment functional area, that is, it meets the requirements of 60dB(A) during the day and 50dB(A) at night. [0003] Sound is a sound wave produced by the vibration of an object. It is a wave phenomenon that is transmitted through ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/224H01G4/236H01G4/35
CPCH01G4/224H01G4/35H01G4/236Y02E60/60
Inventor 王浩宇史林军
Owner HOHAI UNIV
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