CN205724627U - A kind of three-dimensional compact outlet structure being applicable to transformer station 330kV GIS - Google Patents

Abstract

This utility model discloses a kind of three-dimensional compact outlet structure being applicable to transformer station 330kV GIS, including GIS outlet casing tube, spark gap, outlet structure, Cantilever Beams, insulator chain and wire；Outlet structure crossbeam is set to upper and lower two-layer, and single Pin outlet structure configuration two returns back out line, and wherein a three-phase outlet returning back out line spatially arranges in just " product " font；Adjacent another returns back out the three-phase outlet of line spatially in falling " product " font layout；Use structure of the present utility model at transformer station's outgoing line side, two return back out line shares a Pin framework, the mode utilizing cable space to arrange reaches to compress the effect of outlet structure width, thus decrease outgoing line interval width, save floor space, save steel, also save GIS main bus-bar length simultaneously, decrease equipment manufacturing cost.

Description

A three-dimensional compact outlet structure suitable for 330kV GIS of substation

【Technical field】

The utility model belongs to the field of high-voltage power transmission and transformation, and relates to a three-dimensional compact outlet structure suitable for a 330kV GIS of a substation.

【Background technique】

With the rapid development of power grid construction, the scale of ultra-high-voltage substation projects is getting larger and larger, and the problem of using conventional power distribution devices to occupy a large area is becoming more and more prominent. Land reserve resources are seriously insufficient, and the cost of land acquisition and demolition is increasing day by day. , especially in some urban centers, the cost of land acquisition is on the rise, and the selection of substation sites is becoming more and more difficult. Improving the utilization rate of land resources is a topic that must be faced in power grid construction. As far as the design of high-voltage power distribution equipment in substations is concerned, gas-insulated metal-enclosed power distribution equipment (GIS) is an intensive power equipment. Outdoor GIS equipment is generally all overhead, and A, B, and C are arranged horizontally. The outlets of the herringbone gate frame are lined up. Due to the limitation of the width of the outgoing line gate structure, the overall width of the outgoing line side of the substation has not been reduced due to the use of GIS equipment, and the advantages of compact arrangement of GIS equipment have not been fully utilized, especially in high altitude areas.

Therefore, optimize the outlet mode of the 330kV GIS power distribution device, reduce the width of the outlet interval, and comprehensively consider the three-dimensional and compact layout of the GIS power distribution device, the outlet frame, and the line corridor of the outlet circuit, so as to save land to the greatest extent and improve land utilization. , which can provide technical support for the construction of subsequent substation projects, which is of great significance.

【Content of utility model】

The purpose of the utility model is to provide a three-dimensional compact outlet structure suitable for substation 330kV GIS, which can solve the actual engineering needs, reduce the width of the outlet interval, and improve the utilization rate of land.

In order to achieve the above object, the utility model adopts the following technical solutions:

A three-dimensional compact outlet structure suitable for substation 330kV GIS, including 330kV GIS outlet bushing, lightning arrester and outlet frame; The bushings are three-phase two-by-two staggered and arranged front and back. Among them, the A and C phase outlets of the first outlet are drawn out through the lower beam, and the B-phase outlet is drawn out through the suspension insulator string to transition the lead wires to the upper beam, so that the three-phase outlets are spaced. "" font arrangement; the B-phase outgoing line adjacent to the other outgoing line is drawn out through the lower beam, and the A and C-phase outgoing lines are drawn out from the upper beam through the suspension insulator string, so that the three-phase outgoing line is in the shape of an inverted "pin" in space. type arrangement; the arrester is installed under the outlet frame.

Further, the upper beam is provided with a cantilever beam, and the outgoing wires of the upper frame beam pass through the hanging insulator string at the end of the cantilever beam to transfer the lead wire to the upper beam and lead out.

Further, the frame column of the outlet frame adopts a single-column steel pipe steel structure, and the frame beams and cantilever beams adopt a triangular beam lattice steel structure.

Furthermore, the 330kV GIS outlet casing of each GIS three-phase outlet is arranged in the shape of "pin".

Further, a ladder is provided on the frame column of the outlet frame.

Further, the bottom of the frame beam and the end of the cantilever beam are provided with hanging wire loops.

The utility model is suitable for the three-dimensional compact outlet structure of the 330kV GIS of the substation, including the 330kV GIS outlet bushing, the lightning arrester and the outlet frame; In terms of space, it is arranged in a "genuine" or "inverted" type. The spatial arrangement of the wires is used to achieve the effect of compressing the width of the outlet frame. The two outlets share a frame, and the spatial arrangement of the wires can compress the width of the outlet. , saving the substation floor area, better coordination with the terminal tower wiring on the line side, and more beneficial to the line side design. Since the interval width is reduced, and the GIS main busbar is generally arranged parallel to the frame beam, the length of the GIS main busbar is correspondingly reduced, which saves equipment investment.

The utility model has the following advantages:

1. Two rounds of outgoing lines are arranged in a positive "pin" character and an inverted "pin" character, and the spatial arrangement of the conductors is used to effectively compress the interval width and save the occupied area.

2. The two outgoing lines share one outgoing line frame, the amount of steel used for the frame is reduced, and the investment in frame steel and civil engineering is saved.

3. The wiring method of the wires on the frame is different from that of the conventional gantry frame, which also reduces the length of the GIS pipeline bus and saves investment

4. After adopting the three-dimensional compact outlet scheme, the connection with the line outlet is smoother.

【Description of drawings】

Fig. 1 is the layout plan of the 330kV three-dimensional compact outlet GIS of the utility model;

Fig. 2 is a cross-sectional view of a 330kV three-dimensional compact outgoing line of the utility model;

Fig. 3 is a perspective view of a 330kV three-dimensional compact outgoing wire framework of the utility model;

In the figure: 1 is the 330kV GIS outlet bushing; 2 is the lightning arrester; 3 is the frame beam; 4 is the cantilever beam; 5 is the insulator string; 6 is the wire.

【detailed description】

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

See Figure 1, a three-dimensional compact outlet structure suitable for substation 330kV GIS, including the layout of 330kV GIS outlet bushing 1, and the type of outlet frame: 330kV GIS outlet bushing 1 three-phase two-by-two staggered layout, such as A, C Phase is the bottom of the frame beam, phase B is located at the bottom of the end of the cantilever beam, or phase B is arranged at the bottom of the frame beam, and phases A and C are located at the bottom of the end of the cantilever beam, which is arranged in the shape of "pin".

The outlet frame adopts a double-layer frame beam 3, wherein the upper beam is provided with a cantilever beam 4, and finally realizes that the GIS outlet wire transitions from the lower layer outlet or the hanging insulator string 5 at the end of the cantilever beam to the upper layer outlet, thereby completing the three-phase conductor 6 qualify.

Among the two outgoing lines, phase A and C of one outgoing line are located at the bottom of the frame beam, and phase B is located at the bottom of the end of the cantilever beam; phase B of the other outgoing line is arranged at the bottom of the frame beam, and phase A and C are located at the bottom of the cantilever beam The bottom of the end; they are respectively arranged in the shape of a positive "pin" and an inverted "pin"; the lightning arrester 2 is installed under the outlet frame. This kind of layout scheme utilizes spatial arrangement to meet the requirements of electrical safety net distance, effectively compresses the interval width, and saves floor space.

Referring to Figure 2 and Figure 3, due to the use of a double-layer outlet structure, its wiring method will be different from the conventional door-type structure. The outgoing line beam of the 330kV GIS power distribution device is set as upper and lower layers. The A and C phases of the first outlet line are drawn out through the lower level beam, and the B-phase outgoing line is drawn out through the suspension insulator to transition the lead wire to the upper level beam, so that the three-phase outgoing line is separated in space. It is arranged in the shape of a character; the B phase of the adjacent outgoing line is drawn out through the lower beam, and the A and C phases are led out through the suspension insulator string to transition the lead wire to the upper beam; so that the three-phase outlets are in the shape of "pin" and "inverted" in space. Product" font layout. Due to the reduction of the interval width, the length of the GIS main busbar is correspondingly reduced, thereby saving equipment investment. After adopting the three-dimensional compact outlet scheme, the connection with the line outlet is smoother.

The GIS three-phase outlet bushing is arranged in the shape of "pin".

Ladders are arranged on the frame columns. Hanging rings are arranged at the bottom of the frame beam and the end of the cantilever beam.

Further, the outlet frame includes frame columns, double-layer frame beams, upper cantilever beams, ladders and other supporting accessories; the frame columns adopt a single-column steel pipe steel structure, and the frame beams and upper cantilever beams adopt triangular beam lattice steel structures.

Through the above analysis, it can be concluded that this three-dimensional compact outlet method has the advantages of reducing the width of the outlet interval, reducing the amount of steel and basic investment; the facade is simple and beautiful, and the construction and processing are simple and convenient; saving the investment of GIS main bus; It is more convenient, safe and reliable, can be applied in engineering, and provides a new option for outlet design.

The above content is a further detailed description of the utility model in conjunction with specific preferred embodiments. It cannot be determined that the specific embodiment of the utility model is limited to this. Under the premise of the new concept, some simple deduction or replacement can also be made, which should be regarded as belonging to the utility model and the patent protection scope is determined by the submitted claims.

Claims (6)

1. the three-dimensional compact outlet structure being applicable to transformer station 330kV GIS, it is characterised in that: include 330kV GIS Outlet casing tube (1), spark gap (2) and outlet structure；

The truck transom (3) of outlet structure is set to upper and lower two-layer, and single Pin outlet structure configuration two returns back out line, and 330kVGIS goes out Thread casing (1) three-phase staggers two-by-two and front and back arranges, wherein A, a C phase outlet returning back out line is drawn by lower floor's crossbeam, B phase outlet By suspension insulator (5), lead-in wire is transitioned into upper strata crossbeam to draw so that three-phase outlet is spatially in just " product " font Arrangement；Another B phase outlet returning back out line adjacent is drawn by lower floor's crossbeam, and A, C phase outlet will be drawn by suspension insulator (5) Line is transitioned into upper strata crossbeam and draws so that three-phase outlet is spatially in falling " product " font layout；Spark gap (2) is arranged on outlet Frame underneath.

The three-dimensional compact outlet structure being applicable to transformer station 330kV GIS the most according to claim 1, its feature exists In: described upper strata crossbeam is provided with Cantilever Beams (4), the outlet of the upper strata frame girder suspension insulator by Cantilever Beams end (5) lead-in wire is transitioned into upper strata crossbeam draw.

The three-dimensional compact outlet structure being applicable to transformer station 330kV GIS the most according to claim 1 and 2, its feature It is: the truss column of described outlet structure uses single-column steel pipe formula steel construction, truck transom (3) and Cantilever Beams (4) to use triangle Girder lattice type steel construction.

The three-dimensional compact outlet structure being applicable to transformer station 330kV GIS the most according to claim 1 and 2, its feature It is: 330kV GIS outlet casing tube (1) of every time GIS three-phase outlet arranges in triangle disposition.

The three-dimensional compact outlet structure being applicable to transformer station 330kV GIS the most according to claim 1 and 2, its feature It is: on the truss column of described outlet structure, be provided with cat ladder.

The three-dimensional compact outlet structure being applicable to transformer station 330kV GIS the most according to claim 1 and 2, its feature It is: described truck transom (3) bottom and Cantilever Beams (4) end are provided with hanging wire ring.