RU157544U1 - REACTOR WINDING - Google Patents

Abstract

The reactor winding, containing turns of stranded wire equipped with general insulation in the form of a rectangular rectangular silicone duct, and tightening elements, characterized in that for stranded wires with a cross section of 150 ÷ 300 mm, the dimensions of the silicone duct are within b = (5.0 ÷ 5.3 ) d, h = (6.9 ÷ 7, l) d, where b is the width of the cross section of the duct, h is the height of the cross section of the duct, d is the diameter of one core.

Description

The utility model relates to the electric power industry, namely to reactors used, for example, to limit short-circuit currents in electric networks.

Known selected as a prototype reactor, containing a winding of turns of an insulated wire, bonded by means of a tightening element [RU 107639]. The insulated wire of the winding is made in the form of a multi-wire core, covered with general insulation in the form of a rectangular silicone box.

The disadvantage of the prototype is that with loose or too dense filling of the internal cross section of the silicone box with wires of a multi-wire core, the cross section of the windings covered by the tightening elements (ties) deviates from a rectangular shape, providing rigidity and dynamic stability of the structure with a minimum number of ties .

Utility Model Essence

The technical result of the utility model is to increase the rigidity and dynamic stability of the design of the reactor winding without increasing the number of couplers.

The subject of a utility model is a reactor winding containing coils of a stranded wire equipped with general insulation in the form of a rectangular rectangular duct and tightening elements, characterized in that for a multicore conductor with a cross section of 150–300 mm, the dimensions of the silicone duct are within

b = (5.0 ÷ 5.3) d (one), h = (6.9 ÷ 7, l) (2)

where b is the width of the cross section of the box, h is the height of the cross section of the box, d is the diameter of one core.

Utility Model Implementation

In FIG. 1 presents a stranded wire of the proposed winding, in FIG. 2 - section of a stranded wire.

The figures show: 1 - wire core, 2 - insulating coating of the core (silicone varnish or enamel), 3 - general silicone insulation of the stranded wire.

The reactor winding contains turns of stranded insulated wire and tightening elements. Each core 1 of a stranded insulated wire may or may not have a coating 2. All cores 1 of a stranded wire are covered by a common silicone insulation 3, the thickness of which is determined by the voltage class of the reactor.

General insulation 3 is made in the form of a silicone box with a rectangular cross section. Coils of a winding from a stranded wire with insulation 3 can be tightly laid on each other and tightly covered by ties. At the same time, the design of the winding is more rigid with fewer ties. However, when tightening the turns of the winding, the outer section of the box deviates from a rectangular shape.

In order to minimize these deviations, an empirically determined technological and preferred in terms of winding stiffness ratio of the internal dimensions of the box section and diameter 3

veins 1. This ratio for a stranded wire with a cross section of 150 ÷ 300 mm ² lies within the limits specified in expressions (1) and (2).

Claims (1)

The reactor winding, containing turns of stranded wire, provided with general insulation in the form of a rectangular rectangular silicone duct, and tightening elements, characterized in that for a multicore wire with a cross section of 150 ÷ 300 mm ^{2, the} dimensions of the silicone duct are within b = (5.0 ÷ 5 , 3) d, h = (6.9 ÷ 7, l) d, where b is the width of the cross section of the box, h is the height of the cross section of the box, d is the diameter of one core.

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