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Bubble suppression method and device of large-scale transformer during live-line oil filtering

An oil filtering device and transformer oil technology, which is applied in the direction of transformer/inductor cooling, foam dispersion/prevention, etc., can solve problems such as unconsidered bubble suppression, achieve high-efficiency live oil filtering work, solve safety risks, and improve equipment Effect

Inactive Publication Date: 2016-08-10
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently existing transformer live oil filtering device CN 201420510502.4 uses a deterioration tank and a purification tank to improve safety through intermittent control, but does not consider the problem of air bubble suppression

Method used

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  • Bubble suppression method and device of large-scale transformer during live-line oil filtering
  • Bubble suppression method and device of large-scale transformer during live-line oil filtering

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] see figure 1 and figure 2 The method for suppressing air bubbles during live oil filtering of large transformers provided by the present invention comprises a transformer live oil filter device and live oil filter equipment thereof, and a vacuum air bubble elimination device 9 and a forced air bubble remover are connected in series in the transformer live oil filter device 8. The vacuum bubble elimination device 9 uses a vacuum pump to evacuate the pair, and the vacuum degree reaches 5-150 Pa; the flow rate of the transformer oil is controlled at 30-150 L / min.

[0019] see figure 1 and figure 2 The device provided by the present invention to realize the method for suppressing air bubbles during live oil filtering of a large transformer includes a live oil filter device for a transformer and live oil filter equipment thereof, a vacuum bubble elimination device 9 ...

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Abstract

The invention discloses a bubble suppression method and device of a large-scale transformer during live-line oil filtering. The device comprises a transformer live-line oil filtering device and a live-line oil filtering unit, wherein a vacuum bubble elimination device and a forced bubble removal device are connected in series in the transformer live-line oil filtering device, the vacuum bubble elimination device adopts a vacuum pump to vacuumize a vacuum pot, the vacuum degree reaches 5-150Pa, and the flow rate of transformer oil is controlled to be 30-150L / min. By the device, the safety risk of bubbles to transformer running during live-line oil filtering of the large-scale transformer can be effectively avoided, and the product production is very convenient to achieve; and with the adoption of the bubble suppression method and device of the large-scale transformer during live-line oil filtering, the live-line oil filtering unit is improved, live-line oil filtering operation in a transformer site is safely and efficiently facilitated, and thus, the device has potential and expected economic benefit.

Description

technical field [0001] The invention relates to live oil filtering of a transformer, in particular to a method for suppressing air bubbles during live oil filtering of a large transformer. The invention also relates to a device for realizing the method for suppressing air bubbles when the large transformer is charged with oil. Background technique [0002] During the installation, oil filling and maintenance of the oil-immersed power transformer in operation, a certain amount of gas will inevitably enter. Since the air bubbles in the transformer oil will always remain suspended and moving in the transformer box, a large transformer has a strong electric field during operation. When the air bubbles in the oil pass through the strong electric field area, it will definitely cause partial discharge. When there are a large number of air bubbles, the insulation performance of the equipment will be seriously reduced, and even the insulation breakdown of the equipment will be cause...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/14B01D19/02
CPCH01F27/14B01D19/02
Inventor 万涛周舟刘凯邱应军钱晖冯兵龚尚昆吴俊杰李臻
Owner STATE GRID CORP OF CHINA
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