CN2566510Y - Dry high voltage wall bushing - Google Patents

Abstract

The utility model relates to a dry high voltage wall bushing. The utility model is composed of a primary conductor, voltage-sharing balls, wire connecting terminals, an insulating winding layer, an insulating outer sheath and a flange, wherein, the voltage-sharing balls and the wire connecting terminals are arranged on both ends of the primary conductor; the insulating winding layer and the insulating outer sheath are wound outside the primary conductor. The utility model is characterized in that the insulating winding layer and a capacitance shield are alternately wound outside the primary conductor; the exterior of the insulating winding layer and the capacitance shield are the insulating outer sheath; the flange is fixed on the middle part of the insulating outer sheath and is arranged in a ground shield part of the insulating winding layer. The utility model has the advantages of reduced insulation materials and overcomes the problems that the insulating winding layer of the existing dry high voltage wall bushing is easy to slide and fall off.

Description

The dry-type high-voltage wall bushing

Technical field

The utility model relates to a kind of wall bushing, the dry-type high-voltage wall bushing of the conduction usefulness in particularly a kind of 35kV and the above electrical network.

Background technology

At present, have on the market a kind of in the dry-type high-voltage wall bushing made for the organic synthesis material of external insulation as shown in Figure 1, the feature of this high-voltage wall bushing is: Primary Conductor (or claim carrying object) 30 is passed the endoporus of the tubulose rigid backbone 70 that non-magnetic material makes, the tubulose rigid backbone 70 outer insulating barriers 40 that alternately hold, the outside of insulating barrier 40 is with the insulation oversheath 50 with full skirt, the centre of insulation oversheath 50 and hold the middle fixed outside flange 60 of insulating barrier 40 is provided with voltage equalizing ball 20 and binding post 10 in the two ends of Primary Conductor 30.Because this kind high-voltage wall bushing primary insulation surrounds on the tubular structure, used insulating material is more.

Summary of the invention

Technical problem to be solved in the utility model is the above-mentioned deficiency at prior art, and provides a kind of on the basis that guarantees insulation stability, fail safe, and structure is more reasonable, can save the dry-type high-voltage wall bushing of insulating material.

Above-mentioned technical problem of the present utility model is realized by following technical scheme.

A kind of dry-type high-voltage wall bushing is by Primary Conductor, the voltage equalizing ball of being located at the Primary Conductor two ends and binding post, is paperwrapped in the outer insulating bag of Primary Conductor and is constituted around layer and insulation oversheath, flange, it is characterized in that:

This Primary Conductor alternately holds insulating barrier and capacitance plate outward, and insulating bag is the insulation oversheath around the outside of layer and capacitance plate, and flange is fixed in the middle part of insulation oversheath and is located at insulating bag in the ground of layer screen part.

Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents:

This Primary Conductor is solid conductor or tubular shape conductor.

The utility model has the advantages that:

Overcome existing dry-type high-voltage wall bushing insulating bag around the more problem of the insulating material consumption of layer, reduced the consumption of insulating material.

For structure of the present utility model, feature and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows:

Description of drawings

Fig. 1 is the structural representation of existing high-voltage wall bushing.

Fig. 2 is the structural representation of high-voltage wall bushing of the present utility model.

Embodiment

As shown in Figure 2.A kind of high-voltage wall bushing provided by the utility model is by Primary Conductor 3, the voltage equalizing ball 2 of being located at Primary Conductor 3 two ends and binding post 1, is paperwrapped in the outer insulating bag of Primary Conductor 3 and constitutes around layer and insulation oversheath 5, flange 6, wherein:

Alternately hold insulating barrier and capacitance plate 4 outside Primary Conductor 3, insulating bag is insulation oversheath 5 around the outside of layer and capacitance plate 4, and flange 6 is fixed in the middle part of insulation oversheath 5 and is located at insulating bag in the ground of layer 4 screen part.

This Primary Conductor 3 is that solid conductor also can be a tubular shape conductor.

Claims (2)

1, a kind of dry-type high-voltage wall bushing is by Primary Conductor, the voltage equalizing ball of being located at the Primary Conductor two ends and binding post, is paperwrapped in the outer insulating bag of Primary Conductor and is constituted around layer and insulation oversheath, flange, it is characterized in that:

This Primary Conductor alternately holds insulating barrier and capacitance plate outward, and insulating bag is the insulation oversheath around the outside of layer and capacitance plate, and flange is fixed in the middle part of insulation oversheath and is located at insulating bag in the ground of layer screen part.

2, dry-type high-voltage wall bushing according to claim 1 is characterized in that: this Primary Conductor is solid conductor or tubular shape conductor.

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