CN201188504Y

CN201188504Y - 500kV, 220kV female and male transforming plant

Info

Publication number: CN201188504Y
Application number: CNU2008200353770U
Authority: CN
Inventors: 卫银忠; 王亮; 项玲
Original assignee: JIANGSU KENENG ELECTRIC ENGINEERING CONSULTATION Co Ltd
Current assignee: JIANGSU KENENG ELECTRIC ENGINEERING CONSULTATION Co Ltd
Priority date: 2008-04-30
Filing date: 2008-04-30
Publication date: 2009-01-28
Anticipated expiration: 2018-04-30

Abstract

The utility model relates to a 500 kV and 220 kV parent-subsidiary substation which belongs to an electrical power unit and comprises a 500 kV main transformer, a 220kV main transformer and a middle part that is used for connecting the 500 kV main transformer and the 220 kV main transformer, wherein, the middle part is 220 kV distribution equipment; the 220 kV distribution equipment and the main transformer are connected to and positioned at the two sides of the 220 kV distribution equipment, one side of the 220 kV distribution equipment is connected with the high-voltage side of the 220 kV transformer, and the other side of the 220 kV distribution equipment is connected with the middle-voltage side of the 500 kV transformer. The 500 kVand 220 kV parent-subsidiary substation has the advantages that the transition from a 220 kV substation to a 500 kV substation is natural, the structure is simple, the occupying area can be saved, the investment can be reduced, the project implementation is convenient, and the 500 kV substation system can be organically connected with the prior 220 kV system in the substation, thereby the two substations are combined into an integer.

Description

500kV, 220kV mothers and sons transformer station

Technical field

Present technique belongs to field of electrical equipment, specifically is a kind of 500kV, 220kV mothers and sons transformer station.

Background technology

Continuous development along with electrical network, the electric power system design theory is constantly progressive, in order to adapt to further developing of supergrid, make full use of limited line channel and land resource simultaneously, build 500kV, 220kV mothers and sons transformer station: promptly in conjunction with the needs and the development of electrical network from now on that have electrical network now, build 220kV transformer station earlier, treating when opportunity is ripe it to be extended is 500kV transformer station.This transformer station need take into account and guarantee 500kV and 220kV transformer station characteristics and function separately, needs simultaneously both are merged, and promptly possesses the Interface design of being convenient to extend transition.

According to original design concept and method, 500kV transformer station and 220kV transformer station are two independently projects from design angle, and generally from the not directly contact of transformer station's body, two transformer stations get in touch by the 220kV circuit; If adjacent with 220kV transformer station and build in 500kV transformer station, simply be electrically connected with similar and mode circuit, not only floor space is big, but also will expend a large amount of equipment and materialss, does not have really to realize the designing requirement of mothers and sons transformer station.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, the utility model proposes a kind of 500kV, 220kV mothers and sons transformer station, concrete technical scheme is as follows:

A kind of 500kV, 220kV mothers and sons transformer station comprise 500kV main transformer, 220kV main transformer (main transformer) and are connected the mid portion of 500kV main transformer and 220kV main transformer that this mid portion is the 220kV power distribution equipment; The 220kV power distribution equipment is connected with the high-pressure side of 220kV transformer with the both sides that place the 220kV power distribution equipment being connected of main transformer a, side, and a side is connected with the medium voltage side of 500kV transformer.

The design 220kV power distribution equipment adopts outdoor medium-sized, biserial suspension type tube mother, circuit breaker three row arrangement forms.Outlet and bus associating framework, current period 220kV and distant view 500kV main transformer inlet wire all adopt overhead leap inlet wire, have saved framework and material; Circuit breaker three row are arranged, bus isolating switch is arranged in measures such as bus below, have compressed occupation of land.The 220kV power distribution equipment is reserved the place of distant view 500kV transformer station's enclosure wall and road, for the independence of distant view transformer station performs transition work.

Lead is by bus bar side isolating switch, circuit breaker, outlet side isolating switch, by equipment sky such as overhead leap power distribution equipment circuit breaker, buses, oppositely introduces main transformer and draws and connect framework, drawn by main transformer to connect framework and realize drawing connecing to the 220kV of main transformer side again.

220kV relay cell is transferred to 220kV power distribution equipment place, performs with distant view 500kV transformer station master control building to be connected preparation.The design makes 220kV power distribution equipment place become the mid portion that nature is connected 500kV main transformer and 220kV main transformer.This mid portion design makes that 220kV transformer station is natural, simple in structure to the transition of 500kV transformer station, save floor occupying area, reduce investment, be convenient to engineering construction.

The design key of 500kV, 220kV mothers and sons transformer station is the ingenious Interface design (being mid portion) of carrying out, and existing 220kV system in 500kV system and the transformer station can organically be linked together, and two transformer stations are united two into one.

Description of drawings

Fig. 1 is a 220kV transformer station floor plan;

Fig. 2 is a 500kV transformer station floor plan;

Fig. 3 is overall 500kV, 220kV mothers and sons transformer station;

Fig. 4 is a 220kV power distribution equipment interface in 500kV, the 220kV mothers and sons transformer station;

Fig. 5 is the overhead leap inlet wire of a main transformer connection diagram.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.

A kind of 500kV, 220kV mothers and sons transformer station comprise 500kV main transformer, 220kV main transformer and are connected the mid portion of 500kV main transformer and 220kV main transformer that this mid portion is the 220kV power distribution equipment; The 220kV power distribution equipment is connected with the high-pressure side of 220kV transformer with the both sides that place the 220kV power distribution equipment being connected of main transformer a, side, and a side is connected with the medium voltage side of 500kV transformer.

The 220kV power distribution equipment adopts outdoor medium-sized, biserial suspension type tube mother, circuit breaker three row arrangement forms, outlet and bus associating framework; Current period 220kV and distant view 500kV main transformer inlet wire all adopt overhead leap inlet wire; Circuit breaker three row are arranged, bus isolating switch is arranged in the bus below.Lead is by bus bar side isolating switch, circuit breaker, outlet side isolating switch, by equipment sky such as overhead leap power distribution equipment circuit breaker, buses, oppositely introduces main transformer and draws and connect framework, drawn by main transformer to connect framework and realize drawing connecing to the 220kV of main transformer side again.Described 500kV, 220kV mothers and sons transformer station also comprise 220kV relay cell, and this 220kV relay cell is transferred to 220kV power distribution equipment place

Accompanying drawing 1 is 500kV, first general layout by 220kV transformer substation construction when 220kV mothers and sons transformer station first stage of the project is implemented: comprise 220kV power distribution equipment place, 220kV main transformer place, 110kV power distribution equipment place and 35kV power distribution equipment chamber.

Accompanying drawing 2 is 500kV, the general layout of 500kV transformer substation construction when engineering construction is boosted in 220kV mothers and sons transformer station: comprise 500kV power distribution equipment, 500kV main transformer place and 220kV power distribution equipment place.

Accompanying drawing 3 is general layouts of 500kV, 220kV mothers and sons transformer station: comprise all power distribution equipments in the mothers and sons transformer station.

From above-mentioned 3 figure as can be seen, the key of mother and sons' transformer substation construction is being connected of transformer in 220kV power distribution equipment and the station: for the ease of electrical arrangement and the outlet of 220kV circuit, with the both sides that place the 220kV power distribution equipment being connected of main transformer, one side needs to be connected with the high-pressure side of 220kV transformer, one side needs to be connected (seeing accompanying drawing 4) with the medium voltage side of 500kV transformer, can take into account the main transformer lead-in wire of both sides so simultaneously, realize that 500kV transformer station is connected with the organic of 220kV transformer station, solves the interface problem of 500kV, 220kV mothers and sons transformer station.

Accompanying drawing 5 is the overhead leap inlet wire of a main transformer connection diagram, by this figure as can be seen, lead is by bus bar side isolating switch, circuit breaker, outlet side isolating switch, by equipment sky such as overhead leap power distribution equipment circuit breaker, buses, oppositely introduce main transformer and draw and connect framework, draw by main transformer and connect framework and realize drawing connecing to the 220kV of main transformer side again.

Claims

1, a kind of 500kV, 220kV mothers and sons transformer station comprise 500kV main transformer and 220kV main transformer, it is characterized in that also comprising the mid portion that is connected 500kV main transformer and 220kV main transformer, and this mid portion is the 220kV power distribution equipment; The 220kV power distribution equipment is connected with the high-pressure side of 220kV transformer with the both sides that place the 220kV power distribution equipment being connected of main transformer a, side, and a side is connected with the medium voltage side of 500kV transformer.

2,500kV according to claim 1,220kV mothers and sons transformer station is characterized in that the 220kV power distribution equipment adopts outdoor medium-sized, biserial suspension type tube mother, circuit breaker three row arrangement forms, outlet and bus associating framework; Current period 220kV and distant view 500kV main transformer inlet wire all adopt overhead leap inlet wire; Circuit breaker three row are arranged, bus isolating switch is arranged in the bus below.

3,500kV according to claim 2,220kV mothers and sons transformer station, it is characterized in that lead is by bus bar side isolating switch, circuit breaker, outlet side isolating switch, by equipment sky such as overhead leap power distribution equipment circuit breaker, buses, oppositely introduce main transformer and draw and connect framework, draw by main transformer and connect framework and realize drawing connecing to the 220kV of main transformer side again.

4, according to claim 1 or 2 or 3 described 500kV, 220kV mothers and sons transformer station, it is characterized in that described 500kV, 220kV mothers and sons transformer station also comprise 220kV relay cell, this 220kV relay cell is transferred to 220kV power distribution equipment place.