Simulation test platform and simulation test method of transformer fire propagation behavior

Abstract

The invention discloses a simulation test platform of a transformer fire propagation behavior. The simulation test platform comprises an anti-explosion isolation room, a heating device, an ignition device, a data collection system and a fire extinguishing device; the anti-explosion isolation room comprises a bottom plate, an isolation wall and a top cover; a boss is arranged on the bottom plate; the isolation wall is arranged on the bottom plate to form a test space with an opened top end; the boss is located in the test space; the top cover is detachably connected to the top of the isolationwall to seal the test space, and a to-be-detected transformer is arranged on the boss; the heating device is arranged at a place, below the to-be-detected transformer, on the bottom plate; the ignition device is arranged at an inner wall of the isolation wall, and an ignition end extends to a region above the boss; the data collection system comprises multiple monitors arranged in the anti-explosion room and a PC computer out of the anti-explosion isolation room; each monitor is connected to the PC computer; the fire extinguishing device is arranged on the isolation wall to accurately acquirea temperature change rule; the different to-be-detected transformers can be repeatedly simulated, and the test cost can be reduced.

Description

technical field [0001] The invention belongs to the technical field of electrical engineering, and in particular relates to a simulation test platform and a simulation test method for the fire spread behavior of a transformer. Background technique [0002] At present, transformer fires are one of the main disasters that endanger the stable operation of power systems. Transformer fires are mostly caused by the combustion of hot oil and flammable alkane gas inside the transformer body after the transformer body disintegrates. After a transformer fire occurs, the fire will spread rapidly, and the body will be deformed due to the large amount of heat absorbed in a short period of time, resulting in the enlargement of the break at the disintegrated position, and the transformer oil and flammable alkane gas will rush out along with the spread of the break. Because this process is very intense, the development data and picture collection of the fire accident scene is extremely diff...

AI Technical Summary

Problems solved by technology

However, there are the following defects: 1) Most of the tests use a metal oil pool to simulate a transformer oil fire with the same power, and the fire spread trend and the combustion law of transformer oil are closely related to the geometric relationship of the transformer, so it is simulated in this way The transformer fire is not scientific enough, and the accuracy of the collected data is not high; 2) In the transformer oil fire spread behavior test, the heating device has a large power, but it is easy to be damaged in the high temperature of the fire, and the production cost of the equipment is high, and the service life is short , the fire spread test cannot be repeated many times, and the test cost is too high

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