High voltage outgoing line device of extra-high voltage transformer
A technology of high-voltage outgoing wires and high-voltage outgoing wires, applied in the direction of transformer/inductor coil/winding/connection, preventing/reducing unnecessary electric/magnetic influence, etc., can solve the problem that the number and size of oil gaps cannot meet 1000kV and The above problems such as the insulation requirements of UHV transformers, partial discharge of high-voltage outlet devices, and difficulty in cleaning welding slag can achieve the effects of weight reduction, reduction of electric field strength, and reasonable field strength distribution.
Active Publication Date: 2010-04-14
CHINA XD ELECTRIC CO LTD +1
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Problems solved by technology
[0003] In the traditional transformer high-voltage outgoing line device, the equalizing tube and the equalizing ball are welded together, and the potential connection between the high-voltage winding lead-out line and the equalizing ball is also welded, which has poor operation process and poor reliability. It is difficult to clean up the welding
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[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0020] like figure 1 figure 2 As shown, the high-voltage outlet device of the present invention is composed of a pressure equalizing tube 1 and a pressure equalizing ball 2 reliably connected by a metal bolt 16 with a self-locking function as an electrode, and the materials of the pressure equalizing tube 1 and the pressure equalizing ball 2 can be selected from copper or Aluminum material, the high-voltage lead-out wire 3 is drawn out from the high-voltage winding 5 and penetrates into a 90-degree upward-bending pressure equalizing tube 1, and the potential connection line 4 of the high-voltage lead-out line is reliably connected to the pressure equalizing ball 2 in the pressure equalizing ball 2, Make the high-voltage lead-out wire 3 and the pressure equalizing ball 2 and the part 6 in the oil of the high-voltage bushing become eq...
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The invention discloses a high voltage outgoing line device of an extra-high voltage transformer, which comprises a high voltage outgoing line, wherein the high voltage outgoing line which is led out from a high voltage winding firstly penetrates from the horizontal end portion of an upwards bent equalizing pipe and then is bent to the vertical end portion of the equalizing pipe, finally the high voltage outgoing line is partially led out from high voltage branch pipe oil after passing through an equalizing ball connected with the vertical end portion of the equalizing pipe, and the high voltage outgoing line is provided with an electric potential connecting line in the equalizing ball for being connected with the equalizing ball. The high voltage outgoing line device of the extra-high voltage transformer is characterized in that the connection between the vertical end portion of the equalizing pipe and the equalizing ball is realized through a metal screw bolt with self-locking function, the connection between the electrical potential connecting line and the equalizing ball is also realized through a metal screw bolt with self-locking function, multiple layers of insulation screen separating oil clearances are arranged on the equalizing pipe and the equalizing ball, and an insulation support is positioned in each oil clearance.
Description
technical field [0001] The invention relates to a high-voltage outlet device of an ultra-high voltage (1000kV and above) transformer. Background technique [0002] The high-voltage outlet device of the transformer is an insulating structure that connects the high-voltage end lead-out wire of the transformer high-voltage winding and the high-voltage bushing oil. The overall structure composed of components has good electrical insulation performance, and is an important part of the main insulation structure of ultra-high voltage transformers and UHV transformers. [0003] In the traditional transformer high-voltage outgoing line device, the equalizing tube and the equalizing ball are welded together, and the potential connection between the high-voltage winding lead-out line and the equalizing ball is also welded, which has poor operation process and poor reliability. It is difficult to clean up the welding slag, which will cause internal pollution and cause the risk of parti...
Claims
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Login to view more IPC IPC(8): H01F27/32H01F27/29H01F27/34
Inventor 谢庆峰韩晓东孟丽坤
Owner CHINA XD ELECTRIC CO LTD
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