Safety protection device for fire resistance test of oil-immersed transformer

Abstract

The invention relates to a safety protection device for an oil-immersed transformer fire resistance test, which includes a first fireproof partition wall and a second fireproof partition wall, a third fireproof partition wall and a fourth fireproof partition wall oppositely arranged, the first The fire partition wall, the third fire partition wall, the second fire partition wall and the fourth fire partition wall successively surround the test area for the fire resistance test of the oil-immersed transformer, and the first fire partition wall and the second fire partition wall are equipped with There are louvers connected to the test area, and there are a number of louvers arranged in parallel from top to bottom in the louvers and inclined downwards. The louver-type fireproof partition wall can not only reduce the risk of fire and explosion during the fire resistance test of the transformer, but also fully ensure the oxygen supply during the test, make the test area communicate with the outside air, and ensure sufficient air entrainment during the test. Make it closer to simulate the real transformer fire scene, and make the test results more accurate.

Description

technical field [0001] The invention relates to the technical field of research on oil-immersed transformers, in particular to a safety protection device for fire resistance tests of oil-immersed transformers. Background technique [0002] At present, most of the transformers operating in the power grid are oil-immersed transformers, which mainly use mineral oil with a low ignition point as the insulating cooling medium. At the same time, oil-immersed transformers using natural ester vegetable oil as the insulating cooling medium are also being continuously developed. Although transformer oil is combustible, it is not flammable or explosive. When there is serious overload, short circuit, insulation damage inside, or when the transformer is exposed to fire, the transformer accident will eventually evolve into serious fire and explosion, and even cause Disasters spread widely. Therefore, in order to verify the fire resistance stability of the transformer, a true transformer f...

AI Technical Summary

Problems solved by technology

In the existing technology, when carrying out the simulation test of the external fire source of the oil-immersed transformer, the explosion-proof wall is usually built to ensure the safety of the test process, but there are obvious deficiencies in this type of test. The danger in the process, but it will also interfere with the air entrainment in the fire simulation process, making it deviate from the real transformer fire scene, affecting the accuracy of the test results

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