CN203014185U - Line connecting structure for crossed matching of incoming lines and outgoing lines of 500kV power distribution device - Google Patents
Line connecting structure for crossed matching of incoming lines and outgoing lines of 500kV power distribution device Download PDFInfo
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- CN203014185U CN203014185U CN 201220702658 CN201220702658U CN203014185U CN 203014185 U CN203014185 U CN 203014185U CN 201220702658 CN201220702658 CN 201220702658 CN 201220702658 U CN201220702658 U CN 201220702658U CN 203014185 U CN203014185 U CN 203014185U
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- main transformer
- circuit
- isolating switch
- interval
- transformer
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Abstract
The utility model provides a line connecting structure for crossed matching of incoming lines and outgoing lines of a 500kV power distribution device. The line connecting structure comprises a starting/standby transformer wire inlet circuit, a main transformer wire inlet circuit, a main transformer wire outlet circuit, group I bus and group II bus which are connected according to the connection mode of a 3/2 circuit breaker, the starting/standby transformer wire inlet circuit and the main transformer wire inlet circuit are arranged in a second interval and a first interval which are adjacent, the group I bus and the group II bus traverse the two intervals side by side, one end of the main transformer wire outlet circuit is arranged in the first interval, and is connected with the group I bus, and the other end of the main transformer wire outlet circuit passes through the second interval. The problem is solved that three-row arrangement crossed matching of a conventional 500kV power distribution device for connection of a 3/2 circuit breaker needs to occupy more intervals, and a new arrangement pattern is adopted, the arrangement is compact, the transverse occupied area is small, and extension is easy.
Description
Technical field
The utility model relates to the connection circuit of a kind of power plant or transformer station, especially relates to the connecting line construction that a kind of 500kV power distribution equipment line intersection is joined string.
Background technology
In tradition power plant or Substation Design, relative 220kV, 110kV are much bigger due to the occupation of land of 500kV power distribution equipment.And 3/2 breaker connection is adopted in its power distribution equipment wiring usually, i.e. 3 switches series connection between 2 buses, form a string, in a string from extraction elements between 2 adjacent switches, namely 3 switches are for two elements, intermediate switch is equivalent to each element with 1.5 switches, therefore also referred to as one and half switch wiring as sharing.And during 3/2 breaker connection, mainly adopt three row formula arrangements.When main transformer inlet wire 2 times, main transformer outlet 2 time ,/standby modified line 1 time, and consider to intersect when joining string, need take 4 intervals.If when place limited size system and owner have specific (special) requirements, have the problems such as difficult arrangement.
Summary of the invention
The purpose of this utility model is: for the problem that prior art exists, provide a kind of 500kV power distribution equipment line intersection to join the connecting line construction of string.
The purpose of this utility model is achieved through the following technical solutions:
a kind of 500kV power distribution equipment line intersection is joined the connecting line construction of string, it is characterized in that, this connecting line construction comprises by rising/the standby input circuit that becomes that 3/2 breaker connection mode connects, the main transformer input circuit, the main transformer outgoing line circuit, I group bus and II group bus, described/standby change input circuit and main transformer input circuit are separately positioned on two the second adjacent intervals, in the first interval, described I group bus, II group bus crosses two intervals side by side, one end of described main transformer outgoing line circuit is located in the first interval, be connected with I group bus, the other end of main transformer outgoing line circuit passes in the second interval.
Preferably, the described/standby input circuit that becomes comprises current transformer, circuit breaker and isolating switch, and an end of described current transformer connects/the standby inlet wire that becomes, and the other end is connected on I group bus by circuit breaker, isolating switch successively.
Preferably, described main transformer input circuit comprises the 5th isolating switch, the 3rd current transformer, the 3rd circuit breaker, the 6th isolating switch, and the main transformer inlet wire is connected on II group bus by the 5th isolating switch, the 3rd current transformer, the 3rd circuit breaker, the 6th isolating switch successively.
Preferably, described main transformer outgoing line circuit comprises the first isolating switch, the first circuit breaker, the first current transformer, the second isolating switch that is located in the first interval; Comprise the outlet isolating switch, capacitance type potential transformer and the lightning arrester that are located in the second interval; One end of main transformer outlet is connected on I group bus by the second isolating switch, the first current transformer, the first circuit breaker and the first isolating switch successively, and the other end of main transformer outlet is connected with outlet isolating switch, capacitance type potential transformer and lightning arrester.
Compared with prior art, the utility model is on the commonly used circuit breaker of the 500kV of 3/2 breaker connection power distribution equipment three row formula layout pattern bases, by rational layout, have in the situation that satisfy charged required distance and realize that line intersects and join the shared interval minimum number of string, in the situation that site condition is limited and the owner has specific (special) requirements, it is less that the distribution dress takes up an area lateral dimension, extends advantage more easily.
Description of drawings
Fig. 1 is circuit connection structure schematic diagram of the present utility model;
Fig. 2 is floor plan of the present utility model, and in Fig. 2, the position annexation of each assembly is with reference to Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment
As shown in Figure 1: a kind of 500kV power distribution equipment line intersection is joined the connecting line construction of string, and it is mainly realized wire-outlet rack hollow wire (#1 main transformer outgoing line circuit) and rises/be connected for the wire that becomes input circuit in same interval.Rise/the standby inlet wire interval (i.e. the second interval) that becomes is arranged in to intersect to join and goes here and there side, interval (i.e. the first interval), rise/the standby apparatus arrangement of input circuit that becomes is below 500kV bus (I organize bus), be followed successively by isolating switch 201, circuit breaker 202 and current transformer 203, rise/the standby input circuit employing aerial condutor access controller switching equipment that becomes, downlead adopts flexible conductor, and vertical T is connected on the 28m aerial condutor.
Intersection is joined string interval outlet (being #1 main transformer outgoing line circuit) and has been transverse to/the standby inlet wire interval (i.e. the second interval) that becomes through the low framework oblique pull of 20.5m, and be to increase post insulator below A, B phase conductor as support under the 28m aerial condutor, then be connected to the outgoing line side aerial condutor by suspension insulator under intermediate frame.20.5m hang down framework and overlap/make combined frame work for the intermediate frame that becomes input circuit, to reduce longitudinal size and the investment of controller switching equipment.500kV network relay chamber has been arranged in/the standby overhead outlet below that becomes inlet wire interval (i.e. the second interval).
The circuit of this connecting line construction connects and specifically comprises by rising/standby input circuit, main transformer input circuit (this main transformer claims the #1 main transformer), #2 main transformer input circuit (stand-by circuit of #1 main transformer input circuit relatively), #2 main transformer outgoing line circuit, #1 main transformer outgoing line circuit, I group bus 4 and the II group bus 5 of becoming that 3/2 breaker connection mode connects.The first interval 1, the second interval 2, the 3rd interval 3 are arranged side by side successively.Rise/be laid in the second interval 2 for becoming input circuit.#2 main transformer input circuit and #2 main transformer outgoing line circuit are laid in the 3rd interval 3.#1 main transformer input circuit is laid in the first interval 1.One end of #1 main transformer outgoing line circuit is located in the first interval 1, is connected with I group bus, and the other end of #1 main transformer outgoing line circuit passes in the second interval 2.
Rise/comprise current transformer 203, circuit breaker 202 and isolating switch 201 for becoming input circuit.One end of current transformer 203 connects/the standby inlet wire that becomes, and the other end is connected on I group bus 4 by circuit breaker 202, isolating switch 201 successively.
#1 main transformer input circuit comprises the 5th isolating switch 109, the 3rd current transformer 110, the 3rd circuit breaker 111, the 6th isolating switch 112.#1 main transformer inlet wire is connected on II group bus 5 by the 5th isolating switch 109, the 3rd current transformer 110, the 3rd circuit breaker 111, the 6th isolating switch 112 successively.
#1 main transformer outgoing line circuit comprises the first isolating switch 101, the first circuit breaker 102, the first current transformer 103, the second isolating switch 104 that is located in the first interval 1; Comprise the outlet isolating switch 113, capacitance type potential transformer 114 and the lightning arrester 115 that are located in the second interval 2; One end of #1 main transformer outlet is connected on I group bus 4 by the second isolating switch 104, the first current transformer 103, the first circuit breaker 102 and the first isolating switch 101 successively, and the other end of #1 main transformer outlet is connected with lightning arrester with outlet isolating switch 113, capacitance type potential transformer 114 and is connected.Due to the 3/2 breaker connection mode of employing, therefore, also be connected with the 3rd isolating switch 105, the second circuit breaker 106, the second current transformer 107, the 4th isolating switch 108 between #1 main transformer outgoing line circuit and #1 main transformer input circuit.
The #2 main transformer is into and out of line circuit and #1 main transformer into and out of the line circuit structural similarity.Just the #2 main transformer all is laid in the 3rd interval 3 into and out of line circuit.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; should be pointed out that all any modifications of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. a 500kV power distribution equipment line intersects the connecting line construction of joining string, it is characterized in that, this connecting line construction comprises by rising/the standby input circuit that becomes that 3/2 breaker connection mode connects, the main transformer input circuit, the main transformer outgoing line circuit, I group bus and II group bus, described/standby change input circuit and main transformer input circuit are separately positioned on two the second adjacent intervals, in the first interval, described I group bus, II group bus crosses two intervals side by side, one end of described main transformer outgoing line circuit is located in the first interval, be connected with I group bus, the other end of main transformer outgoing line circuit passes in the second interval.
2. a kind of 500kV power distribution equipment line intersection according to claim 1 is joined the connecting line construction of string, it is characterized in that, described/standby the input circuit that becomes comprises current transformer, circuit breaker and isolating switch, one end of described current transformer connects/the standby inlet wire that becomes, and the other end is connected on I group bus by circuit breaker, isolating switch successively.
3. a kind of 500kV power distribution equipment line intersection according to claim 1 is joined the connecting line construction of string, it is characterized in that, described main transformer input circuit comprises the 5th isolating switch, the 3rd current transformer, the 3rd circuit breaker, the 6th isolating switch, and the main transformer inlet wire is connected on II group bus by the 5th isolating switch, the 3rd current transformer, the 3rd circuit breaker, the 6th isolating switch successively.
4. a kind of 500kV power distribution equipment line intersection according to claim 3 is joined the connecting line construction of string, it is characterized in that, described main transformer outgoing line circuit comprises the first isolating switch, the first circuit breaker, the first current transformer, the second isolating switch that is located in the first interval; Comprise the outlet isolating switch, capacitance type potential transformer and the lightning arrester that are located in the second interval; One end of main transformer outlet is connected on I group bus by the second isolating switch, the first current transformer, the first circuit breaker and the first isolating switch successively, and the other end of main transformer outlet is connected with outlet isolating switch, capacitance type potential transformer and lightning arrester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702658 CN203014185U (en) | 2012-12-18 | 2012-12-18 | Line connecting structure for crossed matching of incoming lines and outgoing lines of 500kV power distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220702658 CN203014185U (en) | 2012-12-18 | 2012-12-18 | Line connecting structure for crossed matching of incoming lines and outgoing lines of 500kV power distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203014185U true CN203014185U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220702658 Expired - Lifetime CN203014185U (en) | 2012-12-18 | 2012-12-18 | Line connecting structure for crossed matching of incoming lines and outgoing lines of 500kV power distribution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203014185U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505758A (en) * | 2014-12-16 | 2015-04-08 | 国家电网公司 | Configuration method of 110kV outdoor flexible busbar improved half-high distribution device |
| CN106058709A (en) * | 2016-06-29 | 2016-10-26 | 河南平芝高压开关有限公司 | GIS reserved spacing and GIS equipment |
| CN106129887A (en) * | 2016-06-29 | 2016-11-16 | 河南平芝高压开关有限公司 | GIS prepared separation, outside line enlargement method and GIS device |
-
2012
- 2012-12-18 CN CN 201220702658 patent/CN203014185U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505758A (en) * | 2014-12-16 | 2015-04-08 | 国家电网公司 | Configuration method of 110kV outdoor flexible busbar improved half-high distribution device |
| CN106058709A (en) * | 2016-06-29 | 2016-10-26 | 河南平芝高压开关有限公司 | GIS reserved spacing and GIS equipment |
| CN106129887A (en) * | 2016-06-29 | 2016-11-16 | 河南平芝高压开关有限公司 | GIS prepared separation, outside line enlargement method and GIS device |
| CN106058709B (en) * | 2016-06-29 | 2018-02-02 | 河南平芝高压开关有限公司 | A kind of GIS prepared separations and a kind of GIS device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER ENGINEERING CONSULTING GROUP SOUTHWEST Free format text: FORMER NAME: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee after: Southwest Electric Power Design Institute CO., Ltd. of China Power Engineering Consulting Group Address before: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee before: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |