A fully-sealed oil char device for transformer sleeve and an oil char method

Abstract

The application provides a A fully-sealed oil char device for transformer sleeve and its oil char method are provided. That device comprises a main body, wherein the main body is provided with an oilpipe and a three-way pipe in a vertical direction, a first end of the oil pipe is connected with the transformer sleeve, and a second end of the oil pipe is connected with an oil tank; The first ventilation port of the three-way pipe is connected with the transformer bushing, the second ventilation port of the three-way pipe is connected with the inflator, the inflator is filled with inert gas, and the third ventilation port of the three-way pipe is connected with the suction device. When the oil sample needs to be taken, the inflator is turned on, the gas in the inflator enters the transformer bushing, and the oil sample in the transformer bushing enters the oil tank through the tubing; When oil filling is required, the suction device is turned on to generate negative pressure in the transformer bushing, which causes the transformer oil in the fuel tank to enter the transformer bushing through the tubing. The device maintains the sealing property throughout the oil filling and oil extraction process, and the air cannot enter the transformer bushing to avoid the oil sample quality change.

Description

technical field [0001] The disclosure relates to the technical field of transformers, in particular to a fully sealed oil filling and extraction device for transformer bushings and an oil filling and extraction method. Background technique [0002] With the rapid development of the national economy, the scale of my country's power system and power grid is rapidly increasing. The rapid increase in the scale of the power system puts forward more stringent requirements for the reliability of power supply. Improving the safety and stability of the power system is of great significance to the stable development of the national economy and the continuous improvement of people's living standards. As one of the key equipment of the power system, the power transformer undertakes many functions such as the transmission and transformation of electric energy. [0003] Transformer oil plays a vital role in the proper operation of transformers. When the transformer is running, it mainly...

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Problems solved by technology

[0005] The embodiment of the present invention provides a transformer bushing fully sealed oil filling device and oil filling method to solve the problem in the prior art that the oil sample in the transformer bushing is prone to qualitative change when taking oil from the transformer

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