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
CN1722319AInactive Publication Date: 2006-01-18INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Publication Date
2006-01-18
Estimated Expiration
Not applicable · inactive patent

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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.
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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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