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Oil supplement and exhaust device for oil-immersed current transformer

A technology of current transformer and exhaust device, which is applied in the direction of transformer/inductor cooling, switchgear, electrical components, etc., and can solve problems such as manual oil replenishment and inability to remove air bubbles in the oil.

Inactive Publication Date: 2016-05-04
GUIYANG BUREAU OF CHINA SOUTHERN POWER GRID CO LTD EHV TRANSMISSION CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention overcomes the technical problem that the prior art can only replenish oil manually and cannot remove the air bubbles in the oil; it provides an oil-immersed current transformer that can quickly replenish oil to CT and effectively reduce the air bubbles injected into the oil Charge exhaust device

Method used

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  • Oil supplement and exhaust device for oil-immersed current transformer

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Embodiment

[0014] refer to figure 1 , an oil-immersed current transformer oil supply and exhaust device, characterized in that it includes an oil inlet pipeline 1 connected in sequence, an oil pump 2 equipped with a frequency converter, and an oil outlet pipeline 3; in addition, an oil inlet pipeline 1 is provided There is a first filter 11; and a flow regulating valve 31 and a second filter 32 are sequentially provided in the oil outlet pipeline 3 along the oil outlet direction. The first filter 11 is a filter screen, and the second filter 32 is an oil filter; any filter capable of filtering oil residue in the prior art can be used.

[0015] After the oil pump 2 is equipped with a frequency converter, that is, the power supply of the oil pump passes through the frequency converter first, and then supplies the oil pump after coming out of the frequency converter. Thereby the pump oil flow rate of oil pump 2 can quantitatively control by changing the power supply frequency; Just can cont...

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Abstract

The invention discloses an oil supplement and exhaust device for an oil-immersed current transformer. The oil supplement and exhaust device comprises an oil inlet pipe, an oil pump and an oil outlet pipe, which are sequentially connected with one another; furthermore, a first filter is arranged on the oil inlet pipe; and the oil outlet pipe is sequentially provided with a flow control valve and a second filter along an oil outlet direction. The oil supplement and exhaust device for the oil-immersed current transformer has the beneficial effects that quick oil supplement for a CT can be achieved by the structure; and bubbles injected into oil are effectively reduced.

Description

technical field [0001] The invention relates to an oil replenishing and exhausting device for an oil-immersed current transformer. Background technique [0002] Since the oil-immersed CT (current transformer) has a long service life, generally more than 10 years, the equipment begins to gradually enter the aging period, and it is prone to defects such as oil leakage. Once oil leakage occurs in these oil-immersed equipment, maintenance personnel are required to replenish the oil in a short period of time to ensure the reliable operation of the oil-immersed equipment. [0003] In the prior art, oil replenishment work is usually performed manually by maintenance personnel with the help of oil pots or barrels. Once a large amount of oil replenishment is encountered (such as replacing the end screen of an oil-immersed CT), it will highlight the defects of the existing technology. It takes a long time and delays the time to restore power to the equipment. After filling up the oil...

Claims

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Application Information

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IPC IPC(8): H02B3/00H01F27/14B01D36/00B01D19/00
CPCB01D19/00B01D36/00H01F27/14H02B3/00
Inventor 邓文斌王伟唐华东刘凡栋
Owner GUIYANG BUREAU OF CHINA SOUTHERN POWER GRID CO LTD EHV TRANSMISSION CO
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