CN203941765U

CN203941765U - A kind of condenser type dry sleeve

Info

Publication number: CN203941765U
Application number: CN201420381826.2U
Authority: CN
Inventors: 虞育号
Original assignee: NANJING ZHIDA ELECTRIC CO Ltd
Current assignee: NANJING ZHIDA ELECTRIC CO Ltd
Priority date: 2014-07-10
Filing date: 2014-07-10
Publication date: 2014-11-12
Anticipated expiration: 2024-07-10

Abstract

The utility model provides a kind of condenser type dry sleeve, and this sleeve pipe comprises capacitor core and conducting rod, and described capacitor core is the tubular structure with centre bore; Described conducting rod is arranged in described capacitor core centre bore, and between described conducting rod and described capacitor core, fills curable medium formation articulamentum; The utility model condenser type dry sleeve replaces conventional true procelain filling type sleeve pipe, and its capacitor core is the unit that Independent is taken into account manufacture, and the capacitor core of same electric pressure can standardized production, has shortened the production cycle.

Description

A kind of condenser type dry sleeve

Technical field

The utility model relates to current-carrying and the insulator of transformer lead-out wire, particularly a kind of mesolow condenser type dry sleeve.

Background technology

46kV and following transformer all adopt true procelain structure by mesolow sleeve pipe major part, and by rational design, can control Ur (sleeve pipe rated voltage) and be placed on below 10pC for lower innings, be the main flow of existing market.

Also have many users to require to adopt capacitance type structure abroad, generally with oilpaper or epoxy, soak two kinds of capacitance type structures of paper, its capacitor core is directly wound on metal conducting bar.Because the common electric current of mesolow sleeve pipe is all larger, specification is also more, so adopt the sleeve pipe production cycle of current capacitance type structure long, standardization level is low, especially 1600A and above large electric current sleeve pipe manufacturing cost are higher, so the mesolow sleeve pipe of capacitance type structure still seldom adopts.

The cost of pure porcelain casing tube is lower, but have the risk of leakage of oil, especially occur the inner or outside fault of transformer and cause sleeve pipe insulator broken, sleeve pipe likely becomes the leakage path of transformer oil, once fire for transformer, is difficult to control and causes huge economic loss.Along with more and more higher to the requirement of transformer safety, its bushing can progressively be transitioned into employing dry sleeve, and mesolow sleeve pipe also needs a kind of safer reliable product.

Summary of the invention

For the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of mesolow condenser type dry sleeve, replace conventional true procelain filling type sleeve pipe, its capacitor core is the unit that Independent is taken into account manufacture, the capacitor core of same electric pressure can standardized production, has shortened the production cycle.

For achieving the above object, the technical solution adopted in the utility model is:

The utility model condenser type dry sleeve comprises capacitor core and conducting rod, and described capacitor core is the tubular structure with centre bore; Described conducting rod is arranged in described capacitor core centre bore, and between described conducting rod and described capacitor core, fills curable medium formation articulamentum.

Described capacitor core comprises a plurality of pole plates, a plurality of inner insulating layer, external insulation sleeve and flange, and described pole plate and described inner insulating layer are arranged alternately successively; Being positioned at the pole plate of inner side is connected with described conducting rod equipotential; The outer surface that is positioned at outermost described inner insulating layer is also provided with described external insulation sleeve; Described external insulation sleeve below is provided with described flange.

Described inner insulating layer is glass fiber or strap.

Described external insulation sleeve is silicon rubber material; Described external insulation sleeve is multilayer umbrella skirt construction.

Described curable medium is epoxy resin.

The top of described conducting rod is provided with binding post

The top of described capacitor core is provided with sealing ring.

Compared with prior art, the beneficial effect that the present invention has is:

The utility model condenser type dry sleeve, capacitor core is unit independently, and the capacitor core of same electric pressure can standardization manufacture, and conducting rod can, by the different plurality of specifications that adopt of size of current, shorten the production cycle greatly; Compare with traditional true procelain filling type sleeve pipe, without oil, without gas, without porcelain, it adopts flame-retardant insulating material, and without decomposing, electric property is stable, without burning and explosion hazard, has improved the general safety performance of transformer; This technology also can extend to 72.5kV, 126kV, 252kV and the electric pressure within the scope of this; Compact conformation, volume is little, lightweight, is convenient to transportation, can arbitrarily angledly install; External insulation adopts silicon rubber composite material, and resistant sudden strain of a muscle ability is strong, to improving pollution flashover voltage, has remarkable result.

Accompanying drawing explanation

Fig. 1 is the utility model condenser type dry sleeve overall structure schematic diagram.

Fig. 2 is the capacitor core structural representation in the utility model.

Fig. 3 is the partial enlarged drawing at Figure 1A place.

In figure: 1, capacitor core, 11, pole plate, 12, inner insulating layer, 13, external insulation sleeve, 14, flange, 2, conducting rod, 21, binding post, 3, articulamentum, 4, sealing ring.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

The utility model condenser type dry sleeve comprises capacitor core 1, conducting rod 2 and articulamentum 3, capacitor core 1 is the tubular structure with centre bore, conducting rod 2 is arranged in capacitor core 1 centre bore, fills curable medium (epoxy) and form articulamentum 3 between conducting rod 2 and capacitor core 1; Capacitor core 1 comprises a plurality of pole plates 11, a plurality of inner insulating layer 12, external insulation sleeve 13 and flange 14, and pole plate 11 is arranged alternately successively with inner insulating layer 12.

The making of capacitor core 1 adopts following concrete grammar: first on glass fibre reinforced plastic cylinder, first use the glass fiber (or strap) of epoxy impregnation to be wound around the inner insulating layer 12 that one deck forms innermost layer, then thickness and pole plate 11 length according to design alternately wind remaining inner insulating layer 12 and pole plate 11 successively; The capacitor core winding 1 is put into mould and flood epoxy, carry out hot setting, after the demoulding, capacitor core 1 outer surface and section carry out necessary processing, after this outside surface casting silicon rubber as external insulation sleeve 13, last mucilage binding mounting flange 14, capacitor core 1 completes.

After capacitor core 1 is made, conducting rod 2 is penetrated in capacitor core 1 centre bore, fill afterwards curable medium (epoxy) and form articulamentum 3 between conducting rod 2 and capacitor core 1, after curable epoxide, Surface Machining is smooth; Finally the pole plate 11 of inner side (zero screen) is connected with conducting rod 2 equipotentials, to reach the object of optimization electric property.

Finally, at conducting rod 2 heads, be inserted in the parts such as O RunddichtringO 4, packing ring, nut, binding post 21, tighten head nut, make sealing ring 4 in compression seal state, strengthen head seal.

Independently capacitor core can be taked standardized production, improve versatility, and independent capacitance fuse is used as sleeve pipe external insulation unit.

Claims

1. a condenser type dry sleeve, this sleeve pipe comprises capacitor core (1) and conducting rod (2), it is characterized in that, described capacitor core (1) is the tubular structure with centre bore; Described conducting rod (2) is arranged in described capacitor core (1) centre bore, and between described conducting rod (2) and described capacitor core (1), fills curable medium formation articulamentum (3).

2. condenser type dry sleeve according to claim 1, it is characterized in that, described capacitor core (1) comprises a plurality of pole plates (11), a plurality of inner insulating layer (12), external insulation sleeve (13) and flange (14), and described pole plate (11) is arranged alternately successively with described inner insulating layer (12); Being positioned at the pole plate (11) of inner side is connected with described conducting rod (2) equipotential; The outer surface that is positioned at outermost described inner insulating layer (12) is also provided with described external insulation sleeve (13); Described external insulation sleeve (13) below is provided with described flange (14).

3. condenser type dry sleeve according to claim 2, is characterized in that, described inner insulating layer (12) is glass fiber or strap.

4. condenser type dry sleeve according to claim 2, is characterized in that, described external insulation sleeve (13) is silicon rubber material; Described external insulation sleeve (13) is multilayer umbrella skirt construction.

5. according to condenser type dry sleeve described in any one in claim 1 to 4, it is characterized in that, described curable medium is epoxy resin.

6. condenser type dry sleeve according to claim 1, is characterized in that, the top of described conducting rod (2) is provided with binding post (21).

7. condenser type dry sleeve according to claim 1, is characterized in that, the top of described capacitor core (1) is provided with sealing ring (4).