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Large-scale converter transformer oil tank for fire extinguishing test

A converter transformer and test technology, applied in the field of power transformers, can solve the problems of complex converter transformer structure, large oil consumption in fire extinguishing test, and high test risk, so as to reduce oil consumption and test risk, and reduce the total amount of test. Cost and the effect of reducing the difficulty of processing

Active Publication Date: 2020-03-17
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention proposes a large-scale converter transformer oil tank for fire extinguishing test, aiming at solving the problems that the converter transformer has a complex structure and large size, and is directly used for fire extinguishing tests with high fuel consumption, high cost and high test risk

Method used

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  • Large-scale converter transformer oil tank for fire extinguishing test
  • Large-scale converter transformer oil tank for fire extinguishing test
  • Large-scale converter transformer oil tank for fire extinguishing test

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Embodiment Construction

[0020] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] see Figure 1-Figure 3 , the figure shows the front view of the large converter transformer oil tank used in the fire extinguishing test provided by t...

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Abstract

The invention provides a large converter transformer oil tank for a fire extinguishing test. The large converter transformer oil tank comprises an oil tank body; the top cover covers the top of the oil tank body, and a flange connector of the ascending flanged base and the first oil conservator are reserved on the top cover; the second oil conservator is communicated with the oil tank body; and the first bracket is connected with the oil tank body, so that the height of the oil tank body is the same as that of the true transformer oil tank. The first support supports the oil tank body at the same height position as a real transformer oil tank. The size of the top cover is completely consistent with that of the top cover of the true transformer; according to the invention, the lifting baseis removed, and the lifting base flange interface and the first oil conservator are reserved, so that the structure of the test oil tank is simplified, the oil consumption and the test risk are reduced to the maximum extent while the physical fire of the real converter transformer is completely simulated, and the condition that flame burns at the top of the converter transformer during a fire extinguishing test is effectively simulated.

Description

technical field [0001] The invention relates to the technical field of power transformers, in particular to a large converter transformer oil tank for fire extinguishing tests. Background technique [0002] Large-scale converter transformers are the core equipment of UHVDC power transmission. They have the characteristics of high electric field, large capacity, and large volume. When a short-circuit breakdown fault occurs inside a large-scale converter transformer, its arc energy is much larger than that of conventional transformers. At the same time, the arc fault will cause the transformer insulating oil to decompose and produce a large amount of combustible gas, and the temperature will rise rapidly to form a very high-pressure high-temperature oil-gas mixture, which will generate a lot of pressure on the converter transformer oil tank. When the pressure generated by the fault arc exceeds the maximum bearing capacity of some areas of the fuel tank, it is easy to cause tea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/14H01F27/06
CPCH01F27/06H01F27/14
Inventor 汪可张书琦李鹏李金忠李刚刘进源程涣超谭瑞娟孙建涛王健一赵志刚徐征宇刘雪丽李熙宁吕晓露
Owner CHINA ELECTRIC POWER RES INST
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