VPI stator wire bar

Abstract

The invention relates to a VPI stator wire bar. The VPI stator wire bar consists of a straight line part and two end parts. The straight line part comprises a lead wire board, displacement gaskets, displacement fillers, an inter-row insulator, an internal pressure equalizing layer, an insulator to ground, an anti-corona processor, an additional insulator and an electromagnetic wire, wherein the inter-row insulator wraps the lead wire board; the displacement gaskets are arranged at the two side ends of the inter-row insulator; the electromagnetic wire wraps the inter-row insulator and the displacement gasket; the displacement fillers are fixed at the two side ends; and the internal pressure equalizing layer, the insulator to ground, the anti-corona processor and the additional insulator sequentially wrap the structure. Each end part comprises a conducting board, an inter-row isolator, an internal pressure equalizing layer, an insulator to ground, an anti-corona processor, an additionalinsulator and an electromagnetic wire, wherein the inter-row insulator wraps the conducting board; the electromagnetic wire is fixed on the two wide end faces of the inter-row insulator; and the internal pressure equalizing layer, the insulator to ground, the anti-corona processor and the additional insulator sequentially wrap the structure. The VPI stator wire bar of the invention has the advantages of fewer layers, thin layers and thin whole body.

Description

Technical field: [0001] The invention relates to a VPI stator bar. Background technique [0002] Existing a kind of manufacturing process of turbogenerator stator wire rod, it is 1) after lead hot-pressing is formed, insulating layer is repaired from the center of conductor narrow face to both ends, exposes bare copper, and stator wire rod is made of upper layer wire rod and The lower layer of wire rods is composed of a exposed copper point at an interval of 88mm from point A to B on the upper layer of wire rods, and a copper exposed point is repaired at an interval of 176mm from point C to D on the upper layer of wire rods; Fix a exposed copper point at a distance of 205.4mm from rod G to H, and the length of the equipotential layer is 9210mm. Within this range, evenly paint a layer of conductive paint, and then wrap a layer of low-resistance anti-halation tape, and the equipotential layer is completed; 2) Wrap Tongma epoxy glass powder mica tape layer as the main insulati...

AI Technical Summary

Problems solved by technology

It has many layers, each layer is thick, the overall thickness is thick, and the cost is high

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