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Oil-immersed power transformer

A power transformer, oil-immersed technology, applied in the direction of transformers, fixed transformers, transformer/inductor components, etc., can solve the problems of high operating costs and high maintenance requirements, and achieve high operating costs, high maintenance requirements, and low costs. Effect

Inactive Publication Date: 2006-01-18
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the shortcomings of the prior art that an on-line monitoring device is required to detect transformer faults, and each component of the transformer fire extinguishing device needs to be regularly detected, the maintenance requirement is high, and the operating cost is high. type transformer

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] One of the specific embodiments of the present invention has a structure such as figure 1 shown. That is, one isolation plate 90 is added to the front, rear, left, right and upper (or upper and lower) of the transformer oil tank, and five (or six) isolation plates 90 are fixedly connected and sealed into a whole, and the internal space constitutes the transformer oil tank. Cavity 10, the outside of five (or six) isolation plates 90 and the wall of the transformer oil tank form the outer cavity 20 of the transformer oil tank. Transformer oil is placed in the inner cavity 10 of the transformer oil tank, and a fireproof and extinguishing medium is placed in the outer cavity 20 of the transformer oil tank.

[0026] The structure of the inner chamber 10 of the transformer oil tank is the same as that of a conventional high-voltage oil-immer...

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Abstract

This invention discloses an oil-immersed type electric transformer with automatic firebreak and extinguishing device, characterized in: separating the transformer fuel tank into inner and outer layers, placing the transformer oil in the inner cave, and firebreak and extinguishing agent in the outer cave, such as FLA, 4310, 300 and so on, when the transformer works well, the agent evaporates, and the phrase change absorbs heat, which does good to the chilling of transformer; when the electric system gets out of order, the tank seam crossing break, the agent in gas state will run out, because it has complete inflammability, even if the open fire happens out of the fuel tank, the agent also can extinguish the fire outside, and it can insulate the fuel and outside air to make the oil not flame, which can protect the transformer from the fire; after the bug is defecated, the agent and oil can be recycled, and transformer can be fixed. The invention has broad application prospect under the condition of high electric pressure and large-capacity transformer.

Description

technical field [0001] The invention relates to an oil-immersed power transformer, in particular to an oil-immersed transformer with an automatic fire extinguishing device. Background technique [0002] The insulation and cooling medium of oil-immersed power transformers is transformer oil. During long-term use, due to short-circuit faults or other faults, the transformer oil tank may rupture, and the transformer oil will burn when exposed to an open flame. [0003] In the prior art, a water spray fire extinguishing system and an oil discharge and nitrogen injection fire prevention and fire extinguishing system are generally used to prevent and extinguish transformer fires. [0004] Patent application number is a kind of closed water spray fire extinguishing system described in the invention patent of 01138876.5 and the automatic opening and closing type water spray fire extinguishing device described in the invention patent of patent application number 97116595.5. The wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/00H01F30/06
Inventor 郭卉张国强顾国彪
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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