Conductor for dry-type transformer and its manufacturing process and manufacturing equipment

A dry-type transformer and wire technology, applied in the direction of transformer/inductor coil/winding/connection, cable/conductor manufacturing, conductor, etc., can solve the problems of volatilization of insulating paint solvent, generation of air bubbles, affecting the service life of transformer, etc., to simplify The effect of manufacturing process, lateral thickness reduction, and overall cost saving

CN105139930BActive Publication Date: 2017-07-11宁波铭润恒业电气股份有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-07-11

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Abstract

The invention discloses a wire used for a dry-type transformer and its manufacturing process and manufacturing equipment. It includes a conductive body (101), and it also includes glass fibers wound and fixed on the outer peripheral surface of the conductive body (101) in a spiral form. strip (102); the adjacent glass fiber strips (102) on the conductive body (101) are distributed at intervals; the manufacturing equipment includes a wire-feeding device (5) for feeding the conductive body (101), used for The winding device (6) for the conductive body (101) from the pay-off device (5) to spirally wind the glass fiber tape (102), the drying device (7) for drying the wound conductive body (101) ) and a wire take-up device (8) for collecting the dried conductive body (101); the advantage of the present invention is that the wire produced by this process is applied to a dry-type transformer, so that the dry-type transformer No partial discharge will occur.
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Description

technical field

[0001] The invention relates to a wire used for a dry-type transformer, its manufacturing process and manufacturing equipment. Background technique

[0002] as attached figure 1 , attached figure 2 and attached image 3 As shown, at present, the epoxy resin-cast coil 2' on the dry-type transformer (the wire is wound and poured through epoxy resin), the wire 1' used in this type of coil, the specific structure is the outer surface of the wire body 101' Wrapping the insulating layer 102', the form of setting the insulating layer is mainly insulating varnish-wrapped insulation or film-wrapped wire-wrapped insulation. Since the insulating material used in the above two types of insulating layers is mainly polyester insulating varnish, this type of insulation The varnish contains volatile solvents, and the coils wound with such wires tend to generate bubbles inside the coil due to the volatilization of the solvent in the insulating varnish during the epoxy cas...

Examples

Embodiment Construction

[0029] Combine below Figure 4 , Figure 5 , Image 6 , attached Figure 7 , attached Figure 8 and attached Figure 9 The present invention is described in further detail.

[0030] as attached Image 6 As shown, the present invention is a wire for a dry-type transformer, which includes a conductive body 101, and it also includes a glass fiber tape 102 wound and fixed on the outer peripheral surface of the conductive body 101 in a spiral form; the upper phase of the conductive body 101 is Adjacent glass fiber strips 102 are distributed at intervals, wherein the spacing between adjacent glass fiber strips 102 is 2-3mm; Figure 4 In the above, we mark the wire composed of the conductive body 101 and the glass fiber ribbon 102 spirally distributed on the conductive body 101 with the reference numeral 1, wherein the glass fiber ribbon 102 is wound and fixed on the conductive body 101 in a helical form, and the same The distance between the adjacent glass fiber strips 102 is...