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Coil out structure in high voltage in oil immersed type distribution transformer

A technology for distribution transformers and high-voltage outlets, applied in the direction of transformers/inductor coils/windings/connections, etc., can solve problems such as easy-to-crack foreign objects, equipment damage, casualties, etc., to prevent accidents, reduce distances, and ensure safety performance Effect

Active Publication Date: 2006-07-05
SHANGHAI ZHIXIN INTELLIGENT ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, there is an exposed charged body on the high-voltage side of the transformer at the terminal of the porcelain bushing. When a small animal climbs to the high-voltage terminal (ie: exposed charged body), an accident will occur.
In addition, the porcelain bushing is installed on the transformer, which is easy to crack or be crushed by foreign objects during the transportation and operation of the transformer, causing equipment damage and casualties

Method used

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  • Coil out structure in high voltage in oil immersed type distribution transformer
  • Coil out structure in high voltage in oil immersed type distribution transformer

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Embodiment Construction

[0011] The high-voltage outlet structure of the oil-immersed distribution transformer of the present invention is particularly suitable for the oil-immersed distribution transformer with a high-voltage rated voltage of 35 kV or below.

[0012] figure 1 Shown is the structure of the first embodiment of the present invention. The high-voltage outlet structure of the oil-immersed distribution transformer includes a tank cover 1, an oil tank 2, a high-voltage cable 5, a high-voltage bushing seat 3 and an elbow-shaped cable head 4 inserted on the high-voltage bushing seat 3.

[0013] The high-voltage bushing seat 3 is hermetically installed on the case cover 1 .

[0014] The connection between the tail conductive part of the elbow cable head 4 and the high voltage cable 5 is connected by cold pressure welding.

[0015] figure 2 Shown is the structure of the second embodiment of the present invention. The high-voltage outlet structure of the oil-immersed distribution transforme...

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Abstract

The structure includes tank cap, oil tank, and high voltage cable, sleeve socket of high voltage, and tail current conducting piece of elbow shaped cable head for connecting high voltage cable. Cold pressure welding can be connected in the connection modes. Replacing sleeve of porcelain vase in prior art, cooperation between the sleeve socket of high voltage and the elbow shaped cable head makes transformers have no exposed electrified body at high voltage side so as to prevent accident caused by that small creature climbs to high voltage connection terminal. The elbow shaped cable head and sleeve socket of high voltage are made from macromolecule insulating material, which possesses certain toughness so as to ensure safety performance in procedures of transportation and operation. Furthermore, distances among sleeve sockets of high voltage in three are reduced.

Description

technical field [0001] The invention relates to an oil-immersed distribution transformer, in particular to a high-voltage outlet structure of an oil-immersed distribution transformer with a high-voltage rated voltage of 35kV or below. technical background [0002] At present, the high-voltage side wires of oil-immersed distribution transformers are usually led from the inside of the oil tank to the tank cover or the outside of the oil tank. The pole is connected to the external high-voltage grid. In this way, there is an exposed charged body on the high-voltage side of the transformer at the connecting terminal of the porcelain bushing. When a small animal climbs to the high-voltage connecting terminal (ie: exposed charged body), an accident will occur. In addition, the porcelain bushing is installed on the transformer, which is easy to crack or be crushed by foreign objects during the transportation and operation of the transformer, causing equipment damage and casualties....

Claims

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Application Information

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IPC IPC(8): H01F27/29
Inventor 凌健顾伟
Owner SHANGHAI ZHIXIN INTELLIGENT ELECTRIC CO LTD
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