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Transformer accessory replacing method

A replacement method and technology for transformers, applied in the manufacture of inductors/transformers/magnets, electrical components, switchgear, etc., can solve the problems of oil reduction and high failure rate, reduce oil storage equipment, improve work efficiency, and save work incidents Effect

Inactive Publication Date: 2010-05-26
国网运行有限公司上海超高压管理处
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The transformer is a large oil-filled equipment in the power system, which plays a key role in the transmission of electric energy in the power system, so the requirements for the quality of the transformer operation are very high, and the insulating oil in the transformer is in a sealed state; the failure rate of some accessories of the transformer is relatively high, such as For pressure release valves, gas relays, etc., the conventional replacement work needs to drain the oil below the oil level of the faulty parts. Since there is no special oil level gauge, the amount of oil drained is an empirical estimate, and each replacement work will cause the transformer internal The amount of oil is reduced, and most of the released oil is treated as waste oil

Method used

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Embodiment Construction

[0012] Such as figure 1 As shown, a transformer accessories replacement method, it includes the following steps:

[0013] (a) Connect a transparent plastic hose to the gas relay 4 of the transformer bushing as the oil level pipe 5, the length of which should be higher than the height of the oil conservator 2 of the main body, so as to observe the actual oil level;

[0014] (b) Connect the hose 6 on the transformer body 1 to the exhaust valve on the oil conservator 2, and connect the vacuum pump 7 in between;

[0015] (c) When pumping oil, it is necessary to close the valve 3 between the oil conservator 2 and the body 1;

[0016] (d) Observe the oil level of the oil level pipe 5 when pumping oil, and stop the vacuum pump 7 when it is lower than the replacement part;

[0017] (e) After the parts are replaced, open the valve 3 between the body 1 and the oil conservator 2, and put the oil down.

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Abstract

The invention discloses a transformer accessory replacing method comprising the following steps of: (a) connecting a transparent plastic hose on a transformer casing gas relay to serve as an oil level pipe, wherein the length needs to be higher than the height of a body oil conservator so as to observe the actual oil level; (b) connecting a hose on a transformer body to an exhaust valve on the oil conservator and connecting the middle with a vacuum pump; (c) when oil is pumped, closing the valve between the oil conservator and the body; (d) observing the oil level of the oil level pipe when the oil is pumped, and stopping the vacuum pump when the oil level is lower than replaced components; and (e) after the component is replaced, opening the valve between the body and the oil conservator to discharge the oil. The method does not waste insulating oil in the transformer and reduces a series of work of cleaning oil storage equipment, oil stain and the like, thereby increasing the work efficiency.

Description

technical field [0001] The invention belongs to the technical field of electric equipment maintenance, and in particular relates to a method for replacing accessories of a transformer. Background technique [0002] The transformer is a large oil-filled equipment in the power system, which plays a key role in the transmission of electric energy in the power system, so the requirements for the quality of the transformer operation are very high, and the insulating oil in the transformer is in a sealed state; the failure rate of some accessories of the transformer is relatively high, such as For pressure release valves, gas relays, etc., the conventional replacement work needs to drain the oil below the oil level of the faulty parts. Since there is no special oil level gauge, the amount of oil drained is an empirical estimate, and each replacement work will cause the transformer internal The amount of oil is reduced, and most of the released oil is treated as waste oil. Conten...

Claims

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Application Information

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IPC IPC(8): H01F41/00H02B3/00
Inventor 刘之奎
Owner 国网运行有限公司上海超高压管理处
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