High and low voltage lead installation structure for distribution silicon steel oil-immersed transformer
An installation structure and transformer technology, which is applied in the direction of transformer/inductor coil/winding/connection, transformer/inductor parts, circuits, etc., which can solve the problem of lengthening the clamping distance of wire clamp A, increasing the amount of copper bars, and increasing costs, etc. problems, to achieve the effect of reducing the number of materials and welding processes, reducing manufacturing costs, and reducing costs
Inactive Publication Date: 2019-02-22
WUJIANG TRANSFORMER CO LTD
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Problems solved by technology
[0002] The existing oil-immersed distribution transformer high and low voltage winding leads are clamped by two wire clamps, such as Figure 7 and Figure 8 As shown, when the center-to-center distance of the large-capacity transformer core is relatively large, while ensuring the insulation distance requirements between the leads, the clamping distance of the corresponding wire clamp A for high and low voltage is also lengthened, resulting in a low utilization rate of the wire clamp A and a high cost. rise; at the same time, as Figure 9 and Figure 10 As shown, the low-voltage leads are fixed by the wire clamp A, which will also increase the amount of copper bars and increase the cost
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[0023] Such as Figure 1 to Figure 6 As shown, this embodiment provides a distribution silicon steel oil-immersed transformer high and low voltage lead wire installation structure, which includes a high voltage lead wire installation structure; the high voltage lead wire installation structure includes a high voltage phase connection 1, a switch branch wire 2, a core high voltage side Upper clamp 3 and laminated cardboard 4; the rear end of the laminated cardboard 4 is fixed on the upper clamp 3 on the high-voltage side of the iron core; the front end of the laminated cardboard 4 is provided with a phase connection round hole 6 and a branch line length shaped hole 7; the high-voltage phase connection 1 passes through the phase connection round hole 6 of the laminated cardboard 4 and is bound and fixed; 4 is provided with a pair of fixing holes 8 at the rear end, and the laminated cardboard 4 is fixed with the clamp 3 on the high-voltage side of the iron core through the fixing...
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The invention relates to a high and low voltage lead installation structure for a distribution silicon steel oil-immersed transformer. The structure includes a high voltage lead installation structureand a low voltage lead installation structure; the high voltage lead installation structure includes a high voltage phase connection, a tapping switch wire, an iron-core high-voltage-side clamp and alaminated paper board; the low voltage lead installation structure includes an iron-core low-voltage-side clamp, a, b, c and o four-phase lug plates, a, b, c and o four-phase copper bars, and three laminated woods corresponding to the a, b and c three-phase copper bars. The invention provides the high and low voltage lead installation structure for the distribution silicon steel oil-immersed transformer, the high voltage side is fixed through the laminated paper board instead of a wiring clamp, the cost is reduced, the low voltage side is led out and fixed through the laminated woods and thea, b and c copper bars, the use amount of the copper bars is reduced, the welding procedures are reduced, the contamination probability of a transformer body is reduced, and the purpose of reducing the transformer manufacturing cost is achieved.
Description
technical field [0001] The invention relates to the field of transformer design and manufacture, in particular to a high and low voltage lead wire installation structure of a silicon steel oil-immersed transformer for power distribution. Background technique [0002] The existing oil-immersed distribution transformer high and low voltage winding leads are clamped by two wire clamps, such as Figure 7 and Figure 8 As shown, when the center-to-center distance of the large-capacity transformer core is relatively large, while ensuring the insulation distance requirements between the leads, the clamping distance of the corresponding wire clamp A for high and low voltage is also lengthened, resulting in a low utilization rate of the wire clamp A and a high cost. rise; at the same time, as Figure 9 and Figure 10 As shown, the low-voltage leads are fixed by the wire clamp A, which will also increase the consumption of copper bars, resulting in an increase in cost. Contents of...
Claims
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IPC IPC(8): H01F27/28H01F27/00
CPCH01F27/2828H01F27/00H01F27/28
Inventor 周亮薛建平关银环
Owner WUJIANG TRANSFORMER CO LTD