Transformer explosion preventing composite device and explosion preventing control method

Abstract

The invention relates to a transformer explosion preventing composite device and an explosion preventing control method and aims to solve the problems that the fire extinguishing effect is bad and the like when conventional transformers are on fire. The device comprises a frame, a transformer component, a transverse frame, high voltage wires, detecting modules and a control module, wherein the control module is connected with a high voltage wire cutting mechanism; a plurality of explosion preventing walls are arranged on the periphery of the transformer component and connected with a lifting driving structure; a plurality of sensing modules are arranged at one sides, which are close to the transformer component, of the explosion preventing walls and connected with the control module; and the control module is respectively connected with a plurality of fire extinguisher nozzles which are arranged at one sides, which are close to the transformer component, of the explosion preventing walls. The device has the advantages that power supply can be automatically cut off; the explosion preventing walls are liftable; no disturbance is caused to the maintenance of the transformer; the explosion preventing walls can be automatically lifted to surround the transformer component when the transformer component is on fire; in the meantime, targeted fire extinguishment is carried out by means of the fire extinguishers arranged inside the explosion preventing walls; and the fire extinguishing effect is good.

Description

technical field [0001] The invention belongs to the technical field of power supply equipment, and in particular relates to a transformer explosion-proof combination device and an explosion-proof control method thereof. Background technique [0002] At present, the fire-fighting measures for large-scale oil-immersed power transformers in China mainly use fixed fire-extinguishing systems such as water spray, foam spray, oil discharge and nitrogen injection, and auxiliary fire-fighting facilities such as sand boxes, sand buckets, hand-held and cart-type fire extinguishers. In the oil discharge and nitrogen injection system, oil pipes, oil discharge pipes connected to butterfly valves and shut-off valves and other joints seepage and oil leakage faults, due to quality problems of pipes and butterfly valve components, unqualified installation process, mechanical vibration environment changes and other influences lead to oil leakage from components Or the sealing rubber pad is wor...

AI Technical Summary

Problems solved by technology

As a result, undesired phase-to-phase short-circuit, inter-turn short-circuit and grounding short-circuit faults are caused. 2. The transposition of the high-voltage winding coil discharges the transformer core, the insulating paper discharges irregularly, and there is arc discharge at the lower part of the iron core column.

The single-phase transformer coil was severely burned, the bell jar was deformed and bulged, the oil inlet pipe at the lower part of the fuel tank was broken, the wire insulation was burned, and the cardboard at the oil inlet port was blackened

3. The faults outside the transformer oil tank include phase-to-phase short circuit and ground short circuit on the bushing and lead-out line

[0005] The above-mentioned scheme solves the problem of poor explosion-proof effect of existing transformers to a certain extent, but the explosion-proof device of the side bushing explosion fire extinguishing system pipe network in this scheme is fixedly installed outside the transformer assembly, and will be damaged if there is no fire. The maintenance and use of the transformer cause certain disturbances, and there are still problems in this scheme: poor stability, poor fire extinguishing effect, and the problem of not being able to extinguish the fire extinguishing point at the first time

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