CN216958870U

CN216958870U - GIS transformer substation and outlet structure thereof

Info

Publication number: CN216958870U
Application number: CN202123455881.0U
Authority: CN
Inventors: 李琳; 杨伟龙; 聂友良; 吴文彬; 林凤思; 杨文臣; 谭红鹏; 陈健; 高英德; 陈海文; 卢伟洪; 罗凤; 王良; 宋丽敏; 梁师齐; 黄泳诗; 苏波; 吕庭锋; 王威
Original assignee: Guangdong Shunde Electric Power Design Institute Co ltd
Current assignee: Guangdong Shunde Electric Power Design Institute Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-12
Anticipated expiration: 2031-12-31

Abstract

The utility model relates to the field of power transmission, and discloses an outlet structure of a GIS (gas insulated switchgear) power transformation device and a GIS substation. The outgoing line structure comprises a GIS horn, a voltage transformer, a lightning arrester, a connecting line and an output line. The voltage transformers are distributed on the left side and the right side of the GIS goat horn, wherein the middle voltage transformer is positioned on the left side or the right side of the GIS goat horn; the lightning arresters are distributed in front of the GIS cavels, wherein the middle lightning arrester is positioned right in front of the middle wiring end of the GIS cavels; and the voltage transformer on the same side, the lightning arrester on the same side and the wiring terminal on the same side of the GIS horn are connected in parallel separately or partially or completely through the connecting wires and then connected to the output wires on the same side. The scheme is used for solving the problem that the external voltage transformer, the external lightning arrester and the GIS horn are optimally arranged in a limited space, and achieves the effects of compact structure, low-cost transformation and construction.

Description

GIS transformer substation and outlet structure thereof

Technical Field

The utility model relates to the field of power transmission, in particular to an outlet structure of a GIS (geographic information System) power transformation device and a GIS substation.

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. GIS devices have been widely operated around the world since the practical use in the 60's of the 20 th century. GIS is widely used not only in the high-voltage and ultra-high voltage fields, but also in the ultra-high voltage field. Compared with a conventional open-type transformer substation, the GIS has the advantages of compact structure, small occupied area, high reliability, flexible configuration, convenience in installation, high safety, high environmental adaptability, small maintenance workload and maintenance interval of main parts not less than 20 years.

Voltage transformers are instruments for transforming voltages, similar to transformers. The voltage transformer is mainly used for supplying power to a measuring instrument and a relay protection device, measuring the voltage, the power and the electric energy of a line, or protecting valuable equipment, a motor and a transformer in the line when the line fails. Therefore, the capacity of the voltage transformer is small, generally, the capacity is only a few volt-amperes and dozens of volt-amperes, and the maximum capacity is not more than one thousand volt-amperes.

The lightning arrester is an electric appliance for protecting electrical equipment from being damaged by high transient overvoltage during lightning stroke, limiting follow current time and limiting follow current amplitude.

For the existing GIS operation power transformation device, in the design scheme, a voltage transformer and a lightning arrester on the line outlet side of the GIS power transformation device are both arranged in the GIS power transformation device, the latest requirements of 35 kV-500 kV transformer substation equipment technology cannot be met, and the GIS operation power transformation device is not beneficial to maintenance of operation units. Therefore, the outlet structure of the GIS power transformation device of the existing transformer substation needs to be improved, and the voltage transformer and the lightning arrester are improved to be external. The outlet structure of the existing GIS transformer device is as follows: the GIS goat's horn at GIS transformer unit end is installed on the platform of being qualified for the next round of competitions, uses aluminium conductors (cable) steel reinforced to connect GIS goat's horn and output line. After the external scheme is changed, a voltage transformer and an arrester are additionally arranged on the original outgoing line platform. Because the space of the original outgoing line platform is limited, how to compactly arrange a voltage transformer, a lightning arrester and a GIS horn as much as possible becomes a new technical problem on the premise of meeting the safety distance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome at least one defect of the prior art, and provides an outgoing line structure of a GIS (geographic information System) power transformation device and a GIS substation, which are used for solving the problem of optimal arrangement of an external voltage transformer, an external lightning arrester and a GIS horn in a limited space and achieving the effects of compact structure, low cost transformation and construction.

The technical scheme adopted by the utility model is that the wire outlet structure of the GIS power transformation device comprises a GIS horn, a voltage transformer, a lightning arrester, a connecting wire and an output wire; the GIS horn comprises a left wiring end, a middle wiring end and a right wiring end; the voltage transformers comprise a left voltage transformer, a middle voltage transformer and a right voltage transformer which are arranged in parallel along the left-right direction; the lightning arrester comprises a left side lightning arrester, a middle lightning arrester and a right side lightning arrester which are arranged in parallel along the left-right direction. The voltage transformers are distributed on the left side and the right side of the GIS goat horn, wherein the middle voltage transformer is positioned on the left side or the right side of the GIS goat horn; the lightning arresters are distributed in front of the GIS cavels, wherein the middle lightning arrester is positioned right in front of the middle wiring end of the GIS cavels; and the voltage transformer on the same side, the lightning arrester on the same side and the wiring terminal on the same side of the GIS horn are connected to the output line through the connecting line independently or after being partially or completely connected in parallel.

In this scheme, left side voltage transformer, middle voltage transformer and right side voltage transformer arrange on a straight line along left right direction, and it has certain interval each other to satisfy the safe alternate distance of alternating current. The lightning arrester is the same as the voltage transformer. The left side wiring end, the middle wiring end and the right side wiring end of GIS goat's horn are three wiring ends of spatial distribution. And the GIS horn is the output end of the GIS power transformation device. The output line adopts the built on stilts line of being qualified for the next round of competitions, and the GIS goat's horn is located the below of output line. The voltage transformers are distributed on the left side and the right side of the GIS ram-horn, and the voltage transformers and the GIS ram-horn are on or approximately on the same straight line. The voltage transformer and the lightning arrester are respectively arranged in tandem. The middle voltage transformer is arranged on the left side or the right side of the GIS cavel and keeps a certain interval with the GIS cavel, the middle lightning arrester is arranged right in front of the GIS cavel and keeps a certain interval with the GIS cavel, and the rest voltage transformers and the lightning arresters are distributed on the left side and the right side. The voltage transformer and the lightning arrester form a point array which extends to the left and the right around the GIS cavel. The dot array is wide in the left-right direction and short in the front-rear direction.

In this scheme, the wiring end and the output line of voltage transformer, arrester, GIS goat's horn are combined into three groups through the connecting wire, and one of them looks of A, B, C looks in every group corresponds three-phase alternating current. For example: and the GIS power transformation device outputs A phases of three-phase alternating current to the left output line through the left wiring end of the GIS claw. In a similar way, the GIS power transformation device outputs the C phase of the three-phase alternating current to the right output line through the right wiring end of the GIS horn. In addition, the voltage transformer, the lightning arrester and the GIS horn can be connected in parallel or partially or completely. Taking the connection of the voltage transformer as an example: the voltage transformer is separately connected with the output line through a connecting line, namely, is separately connected; or the voltage transformer is firstly connected with the GIS claw in parallel through the connecting wire and then connected with the output line through the connecting wire of the GIS claw, namely, the voltage transformer is partially connected in parallel; or the voltage transformer is firstly connected with the lightning arrester in parallel through the connecting wire, then connected with the GIS cavel in parallel through the connecting wire of the lightning arrester, and finally connected with the output line through the connecting wire of the GIS cavel, namely all the voltage transformers are connected in parallel.

This scheme is based on the structure of GIS goat's horn, through arranging the point array of constituteing by voltage transformer and arrester around the GIS goat's horn, and adopt nimble parallel connection mode, under the prerequisite that satisfies the safe alternate distance of three-phase alternating current, the peripheral position of GIS goat's horn has just been utilized, realized in finite space, external voltage transformer, the optimization of external arrester and GIS goat's horn is arranged, make this outlet structure can be used in GIS transformer widely, compact structure has been reached, the effect of low-cost transformation and construction.

Preferably, an insulating assembly is arranged between the intermediate voltage transformer and the GIS horn, and the insulating assembly is used for fixing a connecting wire of the intermediate voltage transformer. Because middle voltage transformer is far away from the GIS goat's horn, and middle voltage transformer's connecting wire needs the space range through the right side terminal of GIS goat's horn again, in order to guarantee the interval of connecting wire and right side terminal, also be the safe alternate distance of B looks and A looks, and then set up the connecting wire of the fixed middle voltage transformer of insulating assembly. According to the field condition, the insulation component can be directly fixed on the wall surface or installed on the outgoing line platform through a support.

Preferably, the middle terminal of the GIS horn is positioned right below the middle output line; the left side voltage transformer is located right below the left side output line or the right side voltage transformer is located right below the right side output line. The alignment mode right below is adopted, on one hand, the connection can be completed only by vertically downward connecting wires, and the installation and construction are convenient; on the other hand, the output line is overlapped with the GIS horn and the voltage transformer below in the space in the vertical projection direction, so that the overall space occupation of the outlet structure is reduced.

Preferably, the left side arrester is located directly in front of the left side voltage transformer; the right side arrester is located right in front of the right side voltage transformer. After the lightning arrester is aligned with the voltage transformer, the lightning arrester and the GIS horn of a goat form a rectangular dot matrix together, so that the installation of each device is facilitated, and meanwhile, the outgoing line platform is convenient to perform subsequent structure strengthening.

Preferably, one ends of the connection lines are connected in parallel with each other or to the output line through a T-type wire clamp.

Preferably, one end of the connecting wire is connected with the voltage transformer, the lightning arrester or the GIS horn through an equipment wire clamp.

The scheme also comprises a GIS transformer substation. A GIS transformer substation comprises a GIS distribution room and a GIS transformer device, wherein the GIS transformer device is installed in the GIS distribution room. The outgoing line structure is adopted outside the GIS power distribution room.

Preferably, one end of the output line is fixed on an outer wall structure of the GIS power distribution room in an overhead mode; the voltage transformer, the lightning arrester and the GIS cavel are installed on a suspended platform outside a GIS distribution room.

Further, the suspended platform comprises a support beam and a support plate; one end of the supporting beam is fixed on an outer wall structure of the GIS power distribution room, and a supporting plate covers the supporting beam; the supporting beam is arranged under the GIS goat's horn, the left side voltage transformer and the right side voltage transformer.

Furthermore, safety guardrails are arranged at the edges of the suspended platforms.

Compared with the prior art, the utility model has the following beneficial effects:

Drawings

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

Fig. 2 is a top layout view of embodiments 1 and 2 of the present invention.

FIG. 3 is a top wiring diagram of examples 1 and 2 of the present invention.

Fig. 4 is a side view of the phase B wiring of embodiments 1 and 2 of the present invention.

Fig. 5 is a front view of embodiment 3 of the present invention.

Description of reference numerals 1: the GIS claw 10, the left side terminal 11, the middle terminal 12, the right side terminal 13, the voltage transformer 20, the left side voltage transformer 21, the middle voltage transformer 22, the right side voltage transformer 23, the lightning arrester 30, the left side lightning arrester 31, the middle lightning arrester 32, the right side lightning arrester 33, the connecting wire 40, the output wire 50, the left side output wire 51, the middle output wire 52, the right side output wire 53, the insulating component 60, the T-shaped wire clamp 70 and the equipment wire clamp 80.

Description of reference numerals 2: GIS electricity distribution room 110, GIS transformer device 120, suspended platform 130, support beam 131, and support plate 132.

Detailed Description

The drawings are only for purposes of illustration and are not to be construed as limiting the utility model. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The curved connecting lines 40 in fig. 1 to 5 are schematic representations only for the sake of clarity of the connection.

Example 1

As shown in fig. 1 to 3, the present embodiment is an outlet structure of a GIS transformer, including a GIS horn 10, a voltage transformer 20, a lightning arrester 30, a connecting line 40, and an output line 50; the GIS horn 10 comprises a left terminal 11, a middle terminal 12 and a right terminal 13; the voltage transformer 20 comprises a left voltage transformer 21, a middle voltage transformer 22 and a right voltage transformer 23 which are arranged in parallel along the left-right direction; the arrester 30 includes a left arrester 31, a middle arrester 32, and a right arrester 33 juxtaposed in the left-right direction; the output lines 50 include a left output line 51, a middle output line 52, and a right output line 53 arranged in parallel in the left-right direction; the GIS horn 10 is located below the output line 50. The voltage transformers 20 are distributed on the left side and the right side of the GIS ram corner 10, wherein the middle voltage transformer 22 is positioned on the left side or the right side of the GIS ram corner 10; the lightning arresters 30 are distributed in front of the GIS cavels 10, wherein the middle lightning arrester 32 is positioned right in front of the middle terminal 12 of the GIS cavels 10; the voltage transformer on the same side, the lightning arrester on the same side and the wiring terminal on the same side of the GIS horn are connected in parallel through the connecting wire 40 individually or partially or all in parallel and then connected to the output wire on the same side.

In this scheme, left side voltage transformer 21, middle voltage transformer 22 and right side voltage transformer 23 are arranged on a straight line along left and right sides direction, and it has certain interval each other to satisfy the safe alternate distance of alternating current. The surge arrester 30 is identical to the voltage transformer 20. The left terminal 11, the middle terminal 12 and the right terminal 13 of the GIS claw 10 are three spatially distributed terminals. The GIS goat's horn 10 is the output of GIS transformer device. The output line 50 adopts an overhead line, and the GIS goat's horn 10 is positioned below the output line 50. The voltage transformers 20 are distributed on the left side and the right side of the GIS goat horn 10, and the voltage transformers 20 and the GIS goat horn 10 are on or approximately on the same straight line. The voltage transformer 20 and the lightning arrester 30 are arranged in tandem, respectively. The middle voltage transformer 22 is arranged on the left side or the right side of the GIS goat horn 10 and keeps a certain interval with the GIS goat horn 10, the middle lightning arrester 32 is arranged right in front of the GIS goat horn 10 and keeps a certain interval with the GIS goat horn 10, and the rest voltage transformers 20 and lightning arresters 30 are distributed on the left side and the right side. The voltage transformer 20 and the arrester 30 form an array of points extending to the left and right sides around the GIS horn 10. The dot array is wide in the left-right direction and short in the front-rear direction.

In the scheme, the terminals of the voltage transformer 20, the lightning arrester 30 and the GIS horn 10 and the output lines 50 are combined into three groups through the connecting lines 40, and each group corresponds to one of A, B, C phases in the three-phase alternating current. For example: the left voltage transformer 21, the left lightning arrester 31 and the left terminal 11 of the GIS claw 10 are connected in parallel with a left output line 51 through a connecting line 40, and the GIS power transformation device outputs a phase A of three-phase alternating current to the left output line 51 through the left terminal 11 of the GIS claw 10. Similarly, the GIS substation outputs the C phase of the three-phase ac power to the right output line 53 through the right terminal 13 of the GIS claw 10. In addition, the voltage transformer 20, the lightning arrester 30 and the connecting line 40 of the terminal of the GIS claw 10 can be connected in parallel individually or partially or completely. Taking the connection of the voltage transformer 20 as an example: the voltage transformer 20 is separately connected with the output line 50 through the connecting line 40, namely, is separately connected; or the voltage transformer 20 is firstly connected with the GIS claw 10 in parallel through the connecting wire 40 and then connected with the output line 50 through the connecting wire 40 of the GIS claw 10, namely, part of the voltage transformer is connected in parallel; or the voltage transformer 20 is firstly connected with the lightning arrester 30 in parallel through the connecting wire 40, then connected with the GIS cavel 10 in parallel through the connecting wire 40 of the lightning arrester 30, and finally connected with the output line 50 through the connecting wire 40 of the GIS cavel 10, namely all connected in parallel.

This scheme is based on GIS goat's horn 10's structure, through arranging the point array of constituteing by voltage transformer 20 and arrester 30 around GIS goat's horn 10 to and adopt nimble parallel connection mode, under the prerequisite that satisfies the safe alternate distance of three-phase alternating current, the peripheral position of GIS goat's horn 10 has just been utilized well, realized in the finite space, external voltage transformer 20, the optimization of external arrester 30 and GIS goat's horn 10 arranges, make this outlet structure can be used widely in GIS transformer, reached compact structure, low-cost transformation and the effect of construction.

In this embodiment, the outlet structure is used for 110KV outlet of the GIS power transformation device, and the voltage transformer 20, the lightning arrester 30 and the GIS goat horn 10 are arranged on an outlet platform. The safe interphase distance of the three-phase alternating current is 1000 mm. The middle voltage transformer 22 is positioned on the right side of the GIS goat horn 10, and the minimum distance between the middle voltage transformer 22 and the right side wiring end 13 of the GIS goat horn 10 is larger than or equal to the safe alternate distance. The middle lightning arrester 32 is located right in front of the middle terminal 12 of the GIS horn 10, and the minimum distance between the middle lightning arrester 32 and the left terminal 11 or the right terminal 13 of the GIS horn 10 is larger than or equal to the safe interval distance.

In this embodiment, the terminals of the voltage transformer 20, the lightning arrester 30 and the GIS 10 and the left group of the output line 50 correspond to the three-phase alternating current phase C, the middle group corresponds to the three-phase alternating current phase B, and the right group corresponds to the three-phase alternating current phase a. The left-side voltage transformer 21 is connected in parallel with the left-side output line 51 alone; the left lightning arrester 31 is connected in parallel with the left output line 51 after being connected in parallel with the left terminal 11 of the GIS claw 10. The intermediate voltage transformer 22 is connected in parallel with the intermediate terminal 12 of the GIS horn 10 and then connected in parallel with the intermediate output line 52; the intermediate arresters 32 are individually connected in parallel with the intermediate output line 52. The right voltage transformer 23 is firstly connected in parallel with the right lightning arrester 33, then connected in parallel with the right terminal 13 of the GIS claw 10, and finally connected in parallel with the right output line 53.

As shown in fig. 4, preferably, an insulating assembly 60 is disposed between the intermediate voltage transformer 22 and the GIS horn 10, and the insulating assembly 60 is used for fixing the connecting line 40 of the intermediate voltage transformer 22. Because the middle voltage transformer 22 is far away from the GIS goat horn 10, and the connecting wire 40 of the middle voltage transformer 22 needs to pass through the space range of the right side terminal 13 of the GIS goat horn 10, in order to ensure the distance between the connecting wire 40 and the right side terminal 13, namely the safe alternate distance between the phase B and the phase a, the insulating assembly 60 is further arranged to fix the connecting wire 40 of the middle voltage transformer 22. Depending on the field conditions, the insulating assembly 60 may be fixed directly to the wall or mounted on the outlet platform by brackets.

Preferably, the middle terminal 12 of the GIS horn 10 is located right below the middle output line 52; the left voltage transformer 21 is located directly below the left output line 51 or the right voltage transformer 23 is located directly below the right output line 53. By adopting the alignment mode right below, on one hand, the connection of the connecting wire 40 can be completed only by vertically downward, and the installation and construction are convenient; on the other hand, the output line 50 is overlapped with the GIS horn 10 and the voltage transformer 20 below in the space in the vertical projection direction, and the overall space occupation of the outlet structure is reduced. In this embodiment, the left voltage transformer 21 is located right below the left output line 51 and on the left side of the GIS cleat 10, the right voltage transformer 23 is located on the right side of the middle voltage transformer 22, and the middle lightning arrester 32 is located right below the middle output line 52.

Preferably, the left lightning arrester 31 is located right in front of the left voltage transformer 21; the right side arrester 33 is located directly in front of the right side voltage transformer 23. After the lightning arrester 30 is aligned with the voltage transformer 20, the lightning arrester and the GIS horn 10 together form a rectangular dot matrix, so that the installation of each device is facilitated, and meanwhile, the outgoing line platform is convenient to perform subsequent structure reinforcement. In this embodiment, the left arrester 31 is also located directly below the left output line 51.

Preferably, one ends of the connection lines 40 are connected in parallel with each other or to the output line 50 through a T-type wire clamp 70. In this embodiment, the positions connected in parallel include a connection line 40 between the left voltage transformer 21 and the left terminal 11, a connection line 40 between the middle voltage transformer 22 and the middle terminal 12, a connection line 40 between the right voltage transformer 23 and the right lightning arrester 33, and a connection line 40 between the right lightning arrester 33 and the right terminal 13.

Preferably, one end of the connection line 40 is connected to the voltage transformer 20, the lightning arrester 30 or the GIS cleat 10 through a device clamp 80. In this embodiment, one end of the connecting wire 40 is a device clip 80 and the other end is a T-clip 70.

Example 2

As shown in fig. 2 to 4, the present embodiment is a GIS substation, which includes a GIS distribution room 110 and a GIS transformation device 120, wherein the GIS transformation device 120 is installed in the GIS distribution room 110. The outlet structure is adopted outside the GIS distribution room 110. In this embodiment, the GIS substation is a building structure, the GIS distribution room 110 is located on the second floor, and the output end of the GIS substation device 120 is a GIS cavel 10.

Preferably, one end of the output line 50 is fixed on the outer wall structure of the GIS distribution room 110 in an overhead manner; the voltage transformer 20, the lightning arrester 30 and the GIS goat's horn 10 are installed on a suspended platform 130 outside the GIS distribution room 110.

Further, the flying platform 130 includes a support beam 131 and a support plate 132; one end of the supporting beam 131 is fixed on the outer wall structure of the GIS distribution room 110, and a supporting plate 132 covers the supporting beam 131; the supporting beam 131 is arranged right below the GIS goat's horn 10, the left voltage transformer 21 and the right voltage transformer 23. In this embodiment, the support beam 131 is made of steel, the support plate 132 is made of steel plate, and the suspended platform 130 has low construction cost.

Further, safety barriers are arranged at the edges of the suspended platform 130.

Example 3

As shown in fig. 5, this embodiment is an outlet structure of a GIS transformer device, similar to embodiment 1. The middle voltage transformer 22 of this embodiment is located the left side of the GIS goat's horn 10, and the left side voltage transformer 21 is located the left side of middle voltage transformer 22, and the right side voltage transformer 23 is located the right side of the GIS goat's horn 10.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.

Claims

1. An outlet structure of a GIS (geographic information System) power transformation device comprises a GIS horn, a voltage transformer, a lightning arrester, a connecting wire and an output wire; the GIS horn comprises a left wiring end, a middle wiring end and a right wiring end; the voltage transformers comprise a left voltage transformer, a middle voltage transformer and a right voltage transformer which are arranged in parallel along the left-right direction; the lightning arrester comprises a left side lightning arrester, a middle lightning arrester and a right side lightning arrester which are arranged in parallel along the left-right direction; it is characterized in that the preparation method is characterized in that,

the voltage transformers are distributed on the left side and the right side of the GIS goat horn, wherein the middle voltage transformer is positioned on the left side or the right side of the GIS goat horn; the lightning arresters are distributed in front of the GIS cavels, wherein the middle lightning arrester is positioned right in front of the middle wiring end of the GIS cavels;

and the voltage transformer on the same side, the lightning arrester on the same side and the wiring terminal on the same side of the GIS horn are connected to the output line through the connecting line independently or after being partially or completely connected in parallel.

2. The outlet structure of the GIS transformer device of claim 1, wherein an insulating assembly is arranged between the intermediate voltage transformer and the GIS horn, and the insulating assembly is used for fixing a connecting wire of the intermediate voltage transformer.

3. The outlet structure of the GIS transformer apparatus of claim 1, wherein the left lightning arrester is located right in front of the left voltage transformer; the right side arrester is located right in front of the right side voltage transformer.

4. The outlet structure of the GIS transformer device according to claim 1, wherein one end of the connection line is connected to the output line in parallel or connected to each other through a T-type wire clamp.

5. The outlet structure of the GIS power transformation device according to claim 1, wherein one end of the connecting wire is connected to the voltage transformer, the lightning arrester or the GIS horn through an equipment wire clamp.

6. A GIS transformer substation comprises a GIS distribution room and a GIS transformer device, wherein the GIS transformer device is installed in the GIS distribution room; the GIS power distribution room is characterized in that the outlet structure of any one of claims 1 to 5 is adopted outside a GIS power distribution room.

7. The GIS substation of claim 6, wherein one end of the output line is fixed on an outer wall structure of the GIS distribution room in an overhead manner; the voltage transformer, the lightning arrester and the GIS cavel are installed on a suspended platform outside a GIS distribution room.

8. The GIS substation of claim 7, wherein the suspended platform comprises support beams and support plates; one end of the supporting beam is fixed on an outer wall structure of the GIS power distribution room, and a supporting plate covers the supporting beam; and the supporting beam is arranged under the GIS ram's horn, the left voltage transformer and the right voltage transformer.

9. The GIS substation of claim 7, wherein safety barriers are provided at edges of the suspended platform.