CN211790396U - GIS is with miniaturized ground connection frock - Google Patents

Abstract

The utility model relates to a GIS is with miniaturized ground connection frock, including both ends open-ended generating line casing, the one end and the sealed rigid coupling of GIS equipment of generating line casing, the sealed rigid coupling of the other end of generating line casing have the detachable apron, the rigid coupling has the turning arm box of a plurality of and the inside intercommunication of generating line casing on the apron, be equipped with the conducting rod in the turning arm box, through installing the turning arm box on the apron, reduced the size of whole ground connection frock, be convenient for hoist and mount and butt joint, the generating line insulator of setting is used for separating the inner chamber of GIS equipment and the inner chamber of generating line casing, the utility model discloses a ground connection frock volume and weight are about original fifth, hoist and mount, butt joint convenient and fast reduce the potential safety hazard, reduce occupation of land space, improve work efficiency about 50%.

Description

GIS is with miniaturized ground connection frock

Technical Field

The utility model relates to the technical field of electrical equipment, specifically indicate a GIS is with miniaturized ground connection frock.

Background

GIS (gas insulated switchgear) is an English abbreviation of gas insulated totally-enclosed switchgear. The GIS is composed of a breaker, a disconnecting switch, a grounding switch, a mutual inductor, a lightning arrester, a bus, a connecting piece, an outgoing line terminal and the like, all the equipment or components are enclosed in a metal grounded shell, and SF6 insulating gas with certain pressure is filled in the metal grounded shell, so that the GIS is also called as an SF6 fully-closed combined electrical appliance.

When the GIS equipment is used for an insulation test, a grounding tool needs to be assembled on one bus as a loop port, the grounding tool comprises a bus shell, a crank arm box, a conducting rod and the like, the crank arm box is fixedly connected to the outer circumferential surface of the bus shell in the prior art, and the grounding tool is large in size, inconvenient to hoist and butt and low in efficiency.

Disclosure of Invention

The utility model discloses to prior art's not enough, provide a small, safe and reliable, hoist and mount butt joint convenient for GIS miniaturized ground connection frock.

The utility model discloses a following technical scheme realizes, provides a GIS is with miniaturized ground connection frock, including both ends open-ended generating line casing, the one end and the sealed rigid coupling of GIS equipment of generating line casing, the sealed rigid coupling of the other end of generating line casing have the detachable apron, the rigid coupling has the connecting lever box of a plurality of and the inside intercommunication of generating line casing on the apron, the conducting rod is equipped with in the connecting lever box.

Through installing the turning arm box on the apron in this scheme, reduced the size of whole ground connection frock, be convenient for hoist and mount and butt joint.

Preferably, a bus insulator fixedly connected with the inner wall of the bus shell in a sealing manner is arranged in the bus shell, and a plurality of metal inserts with the same number as the crank arm boxes are fixedly connected onto the bus insulator.

The bus insulator in this scheme is used for separating the inner chamber of GIS equipment and the inner chamber of bus casing, and metal insert is used for carrying out electric connection to the components and parts of bus insulator both sides.

Preferably, the number of the crank arm boxes is three, and the three crank arm boxes are circumferentially distributed along the center of the cover plate. The connecting lever box is provided with threely in this scheme to carry out the ground connection operation to three electrode of three-phase electricity, three connecting lever box distributes along apron center circumference, is convenient for reduce the size of whole ground connection frock, is convenient for hoist and mount.

Preferably, the bus bar housing is connected with the cover plate through a flange. According to the scheme, the bus shell and the cover plate are connected through the flange, so that the bus shell and the cover plate are convenient to detach and hermetically connect.

Preferably, the opening at one end of the crank arm box, which is far away from the cover plate, is arranged, and the opening of the crank arm box is connected with the crank arm box cover plate through a flange. The connecting lever box apron that sets up in this scheme is convenient for carry out the dismouting to the inside spare part of connecting lever box.

As optimization, the length of the bus shell is 300-600 mm. The length of generating line casing is 300~600mm in this scheme, compares generating line casing 2000 mm's in the prior art length, has shortened the length of generating line casing greatly.

As optimization, the length of the conductive rod is 200-500 mm. The length of conducting rod is 200~500mm in this scheme, compares conducting rod 1800 mm's in the original technique length, has shortened the length of conducting rod greatly.

Preferably, the connecting mode of the crank arm box and the cover plate is welding. The mode of connection of connecting lever box and apron is the welding in this scheme, is convenient for to the processing of connecting lever box and apron.

The utility model has the advantages that: the utility model discloses a GIS is with miniaturized ground connection frock through installing the crank box on the apron, has reduced the size of whole ground connection frock, is convenient for hoist and mount and butt joint, and the bus insulator of setting is used for separating the inner chamber of GIS equipment and the inner chamber of generating line casing, the utility model discloses a ground connection frock volume and weight are about original fifth, hoist and mount, butt joint convenient and fast, reduce the potential safety hazard, reduce occupation of land space, improve work efficiency about 50%.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a left side view of the present invention;

FIG. 3 is a right side view of the present invention;

fig. 4 is a cross-sectional view taken along the plane a-a of fig. 3 according to the present invention;

FIG. 5 is a schematic view of a conductive rod of the present invention;

shown in the figure:

1. the bus-bar shell comprises a bus-bar shell body, 2, a cover plate, 3, a crank-bar box, 4, a crank-bar box cover plate, 5, a bus-bar insulator, 6, a metal insert, 7, a conducting rod, 8, a contact base, 9, an operating shaft, 10 and a grounding terminal.

Detailed Description

In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.

As shown in fig. 1-5, the utility model discloses a GIS is with miniaturized ground connection frock, including both ends open-ended generating line casing 1, generating line casing 1 is the cylinder, and generating line casing 1's length is 400 mm.

One end of the bus shell 1 is fixedly connected with the GIS equipment through flange sealing, the other end of the bus shell 1 is fixedly connected with a detachable cover plate 2 in a sealing mode, the cover plate 2 is a circular flat plate, and the bus shell 1 is connected with the cover plate 2 through a flange.

Open on the apron 2 and have 3 round holes, the welding has the turning arm box 3 that corresponds with the round hole on the round hole to make turning arm box 3 and the inside intercommunication of generating line casing 1, turning arm box 3 is both ends open-ended cylinder, and the one end of turning arm box 3 welds with apron 2, and flange joint has turning arm box apron 4 on the opening of the other end of turning arm box 3, and three turning arm box 3 distributes along 2 central circumferences of apron.

The conductive rod 7 is installed in the crank arm box 3, the conductive rod 7 is coaxial with the crank arm box 3, the conductive rod 7 is connected inside the crank arm box 3 in a sliding mode through a guide sleeve fixed inside the crank arm box 3, the guide sleeve is made of insulating materials, the length of the conductive rod 7 is 330mm, and the diameter of the conductive rod 7 is 60 mm. Still the hub connection has operating shaft 9 on the turning arm box 3, the one end of operating shaft 9 stretches out to the turning arm box 3 outside, the rotation axis of operating shaft 9 is perpendicular with turning arm box 3 axis, the rigid coupling has the operation fork that is located turning arm box 3 inside on the operating shaft 9, two prongs of operation fork are located conducting rod 7 both sides respectively, insulating slider is equipped with on the prong of operation fork, the spout that has one and insulating slider adaptation is respectively opened to the both sides of conducting rod 7, through rotatory operating shaft 9, drive the operation fork and rotate, the insulating slider of operation fork prong drives the conducting rod along axial displacement, because the prong of operation fork is arc motion, therefore when insulating slider drives the conducting rod along axial displacement, insulating slider has certain radial slip for the spout.

The crank arm box 3 is further fixedly connected with a grounding terminal 10, the grounding terminal 10 is connected with the crank arm box 3 through an insulating material, one section of the grounding terminal 10 extends out of the crank arm box, and the grounding terminal 10 is electrically connected with the conductive rod 7.

The bus insulator 5 fixedly connected with the inner wall of the bus shell 1 in a sealing mode is arranged in the bus shell 1, the bus insulator 5 is made of insulating materials, the bus shell 1 and GIS equipment are separated through the bus insulator, 3 metal inserts 6 corresponding to the crank arm boxes 3 are fixedly connected to the bus insulator 5, one ends of the metal inserts 6 are electrically connected with contact seats 8 fixedly connected in the bus shell 1, the other ends of the metal inserts 6 are electrically connected with the inside of the GIS equipment, conductive holes matched with the conductive rods 7 are formed in the contact seats 8, when the conductive rods 7 are inserted into the conductive holes, the GIS equipment and a grounding terminal 10 are conducted, and grounding of the GIS equipment is achieved.

Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.

Claims (8)

1. The utility model provides a GIS is with miniaturized ground connection frock which characterized in that: including both ends open-ended generating line casing (1), the sealed rigid coupling of the one end and GIS equipment of generating line casing (1), the sealed rigid coupling of the other end of generating line casing (1) has detachable apron (2), the rigid coupling has crank arm box (3) of a plurality of and generating line casing (1) inside intercommunication on the apron, conducting rod (7) are equipped with in crank arm box (3).

2. The GIS of claim 1 is with miniaturized ground connection frock, characterized in that: the bus insulator (5) fixedly connected with the inner wall of the bus shell (1) in a sealing mode is arranged in the bus shell (1), and a plurality of metal inserts (6) the quantity of which is the same as that of the crank arm boxes (3) are fixedly connected to the bus insulator (5).

3. The GIS of claim 1 is with miniaturized ground connection frock, characterized in that: the number of the crank arm boxes (3) is three, and the three crank arm boxes (3) are distributed along the circumferential direction of the center of the cover plate (2).

4. The GIS of claim 1 is with miniaturized ground connection frock, characterized in that: the bus shell (1) is connected with the cover plate (2) through a flange.

5. The GIS of claim 1 is with miniaturized ground connection frock, characterized in that: the opening of one end of the crank arm box (3) far away from the cover plate (2) is arranged, and the opening of the crank arm box (3) is connected with a crank arm box cover plate (4) in a flange mode.

6. The GIS of claim 1 is with miniaturized ground connection frock, characterized in that: the length of the bus shell (1) is 300-600 mm.

7. The GIS of claim 1 is with miniaturized ground connection frock, characterized in that: the length of the conducting rod (7) is 200-500 mm.

8. The GIS of claim 1 is with miniaturized ground connection frock, characterized in that: the connecting mode of the crank arm box (3) and the cover plate (2) is welding.

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