CN201075601Y

CN201075601Y - Gas insulated metal sealing switchgear

Info

Publication number: CN201075601Y
Application number: CNU2007200323164U
Authority: CN
Inventors: 张希捷; 王淑平; 火恒章; 王文文; 姜章兰; 程立
Original assignee: XI'AN ELECTRIC MANUFACTURING CORP
Current assignee: China XD Electric Co Ltd
Priority date: 2007-07-20
Filing date: 2007-07-20
Publication date: 2008-06-18
Anticipated expiration: 2017-07-20

Abstract

The utility model provides a gas insulation and metal enclosed switch device with compact structure, aiming at solving the problems of large occupation space and inconvenient operation and maintenance in the existing products. The switch device comprises a Z type inlet and outlet line interval, 'Pi'-typed inlet and outlet line interval and a bus interval and each interval is respectively provided with a three-pole breaker, two sections of main bus, six current transformers, an insulating switch with at least six poles and a three-pole earth switch connected with the insulating switch with at least six poles. The utility model is characterized in that: the breaker is a single-break breaker which is vertically arranged, the main bus is arranged on the ground and the insulating switch is a perpendicular angel type.

Description

A kind of Cubicle Gas-Insulated Switchgear

Technical field

The utility model relates to the power switchgear in a kind of high-voltage electric power system, particularly a kind of Cubicle Gas-Insulated Switchgear (GIS)

Background technology

The Cubicle Gas-Insulated Switchgear of existing a kind of 363kV (363kVGIS), because what circuit breaker (CB) adopted is double break mouth, horizontal arrangement form, when arranging, in order to make the compactness of structural configuration, often with the built on stilts layout of bus, therefore isolating switch (DS), earthed switch (ES) executive component of etc.ing are in the higher position, from operate and Maintenance and Repair all uneconomical making things convenient for, reduce cost, improve on the reliability of products, and it is bigger to take up room.

Summary of the invention

Problems such as the utility model is intended to solve that existing product takes up room greatly, operation and Maintenance and Repair inconvenience provide the Cubicle Gas-Insulated Switchgear of a kind of 363kV of compact conformation.

For reaching above purpose, the utility model takes following technical scheme to be achieved:

A kind of Cubicle Gas-Insulated Switchgear, comprise Z type turnover line interval, π type turnover line interval, female connection interval, described each be respectively equipped with three-pole breaker, two sections main bus bars, six current transformers, sextupole isolating switch and connected sextupole earthed switch at least at interval, it is characterized in that, described circuit breaker is the single break circuit breaker of vertical layout, described main bus bar places ground, and described isolating switch is the perpendicular type isolating switch.

In the such scheme, described perpendicular type isolating switch and connected earthed switch can be arranged on the main bus bar; But described current transformer horizontal arrangement.

The utility model is owing to adopted new-type vertical single break breaker structure, main bus bar can be placed ground, isolating switch, earthed switch place on the main bus bar, make 363kV GIS arrange compact more, take up room that it is a lot of to dwindle, therefore reliability height, operation and repair and maintenance are convenient, amount of parts reduces significantly, and cost significantly reduces.

Description of drawings

Fig. 1 is a kind of overall vertical view of existing 363kVGIS product.Among the figure, 1 is Z type turnover line interval; 2 are π type turnover line interval; 3 is female connection interval; CB is a double break mouth circuit breaker; M ₁, M ₂Be main bus bar; LCP is an on-site control; A, B, C are phase mark.

Fig. 2 is an each several part side direction view at interval among Fig. 1, and wherein Fig. 2 a is that the D-D of Fig. 1 is to view; Fig. 2 b is that the E-E of Fig. 1 is to view; Fig. 2 c is that the F-F of Fig. 1 is to view.Among the figure, DS is an isolating switch; FES is the fault earthing switch; ES is an earthed switch; CT is a current transformer; BSG is a sleeve pipe.

Fig. 3 is an overall vertical view of the present utility model.Among the figure, CB ' is the single break circuit breaker.

Fig. 4 is an each several part side direction view at interval among Fig. 3, and wherein Fig. 4 a is that the G-G of Fig. 3 is to view; Fig. 4 b is that the H-H of Fig. 3 is to view; Fig. 4 c is that the I-I of Fig. 3 is to view.Among the figure, DS ' is the perpendicular type isolating switch; ES ' is the earthed switch that is connected with perpendicular type isolating switch DS '.

Embodiment

Below in conjunction with drawings and Examples the utility model is described in further details.

Fig. 1, Fig. 2 are the general arrangement of a kind of existing 363kV GIS, comprise three kinds of typical cases arrangement at interval: a kind of Z type turnover line at interval; A kind of π type turnover line at interval; A kind of female connection at interval.As can be seen from Figure: its spaced apart 1250mm, spacer are 3800mm, highly are about 11300mm, and overall width is about 13350mm, and it is bigger to take up room.In addition, that it adopts is double break mouth circuit breaker CB, whole horizontal arrangement forms, and in order to make the compactness of structural configuration, must be with bus M ₁, M ₂Built on stilts arrange (Fig. 2), so executive components such as isolating switch DS, earthed switch ES are in the higher position, operation and Maintenance and Repair are very inconvenient.

As shown in Figure 3, Figure 4, the utility model has adopted novel vertical single break circuit breaker CB ', with main bus bar M ₁, M ₂Place ground, isolating switch DS ' and connected earthed switch ES ' frame are on main bus bar.Spaced apart 1000mm, spacer are 3400mm, highly are about 8100mm, and overall width is about 12520mm.

Z type turnover line interval: comprise that three utmost point Z type single break circuit breaker CB ', sextupole perpendicular type isolating switch DS ' and connected three utmost point earthed switch ES ', three utmost point linear pattern isolating switch DS and connected three utmost point earthed switch ES and fault earthing switch FES, six current transformer CT, three sleeve pipe BSG, two sections main bus bar M1/M2, on-site control LCP (see Fig. 4 a), wherein perpendicular type isolating switch DS ' and earthed switch ES ' are arranged on the top of main bus bar M1, M2, and divide the both sides that are located at circuit breaker CB ' with linear pattern isolating switch DS; Current transformer CT is arranged horizontally in circuit breaker CB ' both sides.

The π type is into and out of line at interval: comprise three utmost point π type single break circuit breaker CB ', sextupole perpendicular type isolating switch DS ' and connected three utmost point earthed switch ES ', three utmost point linear pattern isolating switch DS and connected three utmost point earthed switch ES and fault earthing switch FES, six current transformer CT, three sleeve pipe BSG, two sections main bus bar M1, M2, an on-site control (seeing Fig. 4 b), wherein perpendicular type isolating switch DS ' and earthed switch ES ' are arranged on the top of main bus bar M1, M2, and are located at the same side of circuit breaker CB ' with linear pattern isolating switch DS; Current transformer CT also is arranged horizontally in circuit breaker CB ' the same side.

Female connection interval: comprise three utmost point π type single break circuit breaker CB ', sextupole perpendicular type isolating switch DS ', six current transformer CT, two sections main bus bar M1/M2, on-site control LCP (seeing Fig. 4 c), wherein perpendicular type isolating switch DS ' and earthed switch ES ' (not marking among the figure) are arranged on the top of main bus bar M1, M2, and current transformer CT is arranged horizontally in circuit breaker CB ' the same side.

Claims

1. Cubicle Gas-Insulated Switchgear, comprise Z type turnover line interval, π type turnover line interval, female connection interval, described each be respectively equipped with three-pole breaker, two sections main bus bars, six current transformers, sextupole isolating switch and connected three utmost point earthed switches at least at interval, it is characterized in that, described circuit breaker is the single break circuit breaker of vertical layout, described main bus bar places ground, and described isolating switch is the perpendicular type isolating switch.

2. Cubicle Gas-Insulated Switchgear according to claim 1 is characterized in that, described perpendicular type isolating switch and connected earthed switch are arranged on the main bus bar.

3. Cubicle Gas-Insulated Switchgear according to claim 1 and 2 is characterized in that described current transformer is arranged horizontally.