CN203339501U - Wiring system used for 220kV transformer substation - Google Patents
Wiring system used for 220kV transformer substation Download PDFInfo
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- CN203339501U CN203339501U CN2013203905586U CN201320390558U CN203339501U CN 203339501 U CN203339501 U CN 203339501U CN 2013203905586 U CN2013203905586 U CN 2013203905586U CN 201320390558 U CN201320390558 U CN 201320390558U CN 203339501 U CN203339501 U CN 203339501U
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- 238000002955 isolation Methods 0.000 claims abstract description 58
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a wiring system used for a 220kV transformer substation. The wiring system used for the 220kV transformer substation includes at least one wire inlet end, first isolation circuit breakers whose wire outlet sides coupled with the wire inlet end, a bus coupled with wire outlet sides of the first isolation circuit breakers, at least one wire outlet end and second isolation circuit breakers whose wire outlet side coupled with the wire outlet end. Wire inlet sides of the second isolation circuit breakers are coupled with a bus. The isolation circuit breaker is an emerging high-voltage device whose shape is similar to that of a common circuit breaker. The isolation circuit breaker has three working positions including a closing position, an opening position and an isolation switch position. Voltage withstanding performance of an opening of the isolation circuit breaker is comparable to that of an isolation switch, and the isolation circuit breaker has integrated functions of a circuit breaker, the isolation switch, a current transformer and a grounding switch. Therefore, according the utility model, the isolation circuit breakers substitute circuit breakers, current transformers and a part of the isolation switches, so that the wiring system used for the 220kV transformer substation is comparatively small in component quantity and simple in structure and helps in reducing maintenance difficulty comparatively.
Description
Technical field
The application relates to technical field of power systems, more particularly, relates to the wiring system of a kind of 220kV transformer station.
Background technology
In transformer station, the failure rate of circuit breaker is higher, in order to be keeped in repair when circuit breaker breaks down, and need to be at circuit breaker both sides configuration isolation switch.The transformer station's universal design 220-C-1 scheme that State Grid Corporation of China releases of take is example, what in this scheme, 220kV transformer station adopted is outdoor AIS equipment, use circuit breaker, current transformer in wiring system, and be provided with isolating switch and corresponding earthed switch at the two ends of circuit breaker, components and parts are more, wiring is comparatively complicated, and then brings larger difficulty for service work.
The utility model content
In view of this, the application provides the comparatively simple 220kV of a kind of structure wiring system of transformer station.
To achieve these goals, the existing scheme proposed is as follows:
The wiring system of a kind of 220kV transformer station comprises:
At least one end of incoming cables;
The first isolation circuit breakers that inlet wire side and described end of incoming cables are coupled;
The bus be coupled with the outgoing line side of described the first isolation circuit breakers;
At least one leading-out terminal;
The second isolation circuit breakers that outgoing line side and described leading-out terminal are coupled;
Inlet wire side and the described bus of described the second isolation circuit breakers are coupled.
Preferably, described bus comprises the first bus and the second bus, also comprises:
For the 3rd isolation circuit breakers that described the first bus and described the second bus are in parallel;
The outgoing line side of described the first isolation circuit breakers is coupled with described the first bus, the second bus respectively;
The inlet wire side of described the second isolation circuit breakers is coupled with described the first bus, the second bus respectively.
Preferably, also comprise:
The first electronic type current sensor be coupled with described end of incoming cables;
The second electronic type current sensor be coupled with described leading-out terminal;
The 3rd electronic type current sensor be coupled with described the first bus;
The quadrielectron formula current sensor be coupled with described the second bus.
Preferably, also comprise:
Two the first isolating switches that are coupled with described the first bus, described the second bus respectively for the outgoing line side by described the first isolation circuit breakers;
Two the second isolating switches that are coupled with described the first bus, described the second bus respectively for the inlet wire side by described the second isolation circuit breakers;
Two the 3rd isolating switches for described the 3rd isolation circuit breakers is coupled with described the first bus, described the second bus respectively.
Preferably, described end of incoming cables is 6, and described leading-out terminal is 3.
Preferably, also comprise:
The first lightning arrester be coupled with described the first bus;
The second lightning arrester be coupled with described the second bus;
The 3rd lightning arrester be coupled with described leading-out terminal;
The first earthed switch be coupled with described the first bus;
The second earthed switch be coupled with described the second bus;
The first electrification display be coupled with described the first bus;
The second electrification display be coupled with described the second bus.
From above-mentioned technical scheme, can find out, the disclosed wiring system of the application has been applied isolation circuit breakers.Isolation circuit breakers is a kind of high-tension apparatus in recent years occurred, profile and normal circuit breaker are close, have three service positions: closing position, open position and isolating switch position, the fracture of isolation circuit breakers reaches the withstand voltage level of isolating switch, the function that has possessed circuit breaker+isolating switch+current transformer+earthed switch, therefore circuit breaker, current sensor have been omitted in this wiring system, and a part of isolating switch and earthed switch, components and parts are less, simple in structure, can relative reduce the work difficulty of maintenance.
Along with the simplification of wiring system, the corresponding raising of the reliability of system, in the time of can making to power, number is improved, and then has increased the sale of electricity volume for electrical network.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiment of the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structure chart that Fig. 1 is the disclosed a kind of 220kV bus arrangement system of the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Embodiment based in the application, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the application's protection.
The structure chart that Fig. 1 is the disclosed a kind of 220kV bus arrangement system of the embodiment of the present application;
Wiring system as shown in Figure 1 is a kind of double-bus structure, comprise the first bus 30 and the second bus 40, the first bus 30 and the second bus 40 are in parallel by isolation circuit breakers 50, the first bus 30 is connected with isolation circuit breakers 50 by an isolating switch 51, and the second bus 40 is connected with isolation circuit breakers 50 by another isolating switch 51.
Be provided with electrification display 31, earthed switch 32, electronic type voltage transformer 60 and lightning protection device 61 on the first bus 30.Whether electrification display 31 is charged for showing bus, prevents the maintainer in the situation that charged close; Earthed switch 32 for joining bus to be discharged with ground when overhauling; Electronic type voltage transformer 60 is for measuring the voltage on bus, and lightning protection device 61, for bus is protected, makes it avoid being struck by lightning; In addition, electronic type voltage transformer 60 is connected with the first bus 30 by isolating switch 63 with lightning protection device 61, at electronic type voltage transformer 60 and the tie point of isolating switch 63, is provided with earthed switch 62.
Be provided with electrification display 41, earthed switch 42, electronic type voltage transformer 70 and lightning protection device 71 on the second bus 40, its effect is identical with corresponding device on the first bus 30.Electronic type voltage transformer 70 is connected with the second bus 40 by isolating switch 73 with lightning protection device 71, at electronic type voltage transformer 70 and the tie point of isolating switch 73, is provided with earthed switch 72.
Transformer station is the node of electrical network in fact, and except voltage transformation that will be higher is lower voltage, effect is in addition adjusted to the load of electrical network.For this reason, this wiring system is provided with 10， end of incoming cables 10, a plurality of end of incoming cables and is coupled by isolation circuit breakers 11 and bus.
End of incoming cables 10 is connected with the inlet wire side of isolation circuit breakers 11; The outgoing line side of isolation circuit breakers 11 is connected with the first bus 30 by an isolating switch 12, by another isolating switch 12, with the second bus 40, is connected simultaneously; 10Yu mono-road high pressure incoming call in end of incoming cables is connected, by isolation circuit breakers 11 and isolating switch 12, electric power is inputted to the first bus 30 and/or the second bus 40, when the electric component on the first bus 30 is keeped in repair, can be by 11 pairs of the first bus 30 outages of isolation circuit breakers; Equally also can be to the second bus 40 outages; Outgoing line side at isolation circuit breakers 11 is provided with earthed switch 121.
At present, because the reason of technique, in the transformer station of 220kV, isolation circuit breakers 11 also can't integrated voltage transformer, for the voltage to end of incoming cables is measured, at isolation circuit breakers 11 and the tie point of end of incoming cables 10, is provided with electronic type voltage transformer 111.
According to the payload in the supply district of transformer station, sometimes need to configure many main transformers, the present embodiment provides three leading-out terminals 20, and corresponding each leading-out terminal 20 can be a main transformer power supply.
Leading-out terminal 20 is coupled by isolation circuit breakers 21 and bus.Be specially: leading-out terminal 20 is connected with the outgoing line side of isolation circuit breakers 21; The inlet wire side of isolation circuit breakers 21 is connected with the first bus 30 by an isolating switch 22, by another isolating switch 22, with the second bus 40, is connected; Inlet wire side at isolation circuit breakers 21 is provided with earthed switch 221; Outgoing line side at isolation circuit breakers 21 is provided with electronic type voltage transformer 211, for the voltage to outgoing line side, is measured; For protection circuit exempts from thunderbolt, at the outgoing line side of isolation circuit breakers 21, also be provided with lightning arrester 23.
220kV bus arrangement system in the universal design 220-C-1 scheme that State Grid Corporation of China releases need to be used 31 groups of isolating switches, 30 current transformers and 10 circuit breakers, and use 22 groups of isolating switches with the 220kV bus arrangement system that the present embodiment provides, be and 10 isolation circuit breakers, do not use current transformer and circuit breaker, the subelement quantity contrast that table 1 is two kinds of wiring systems:
Table 1
As can be seen from Table 1, wiring system in the present embodiment is after adopting isolation circuit breakers, and number of elements has reduced a lot, and the structure of corresponding wiring system is also comparatively simple, and then improved to a certain extent reliability, table 2 is the reliability contrast to these two kinds of wiring systems:
Table 2
As can be seen from Table 2, after the wiring system of the present embodiment adopts isolation circuit breakers, the dead electricity amount is expected to reduce 1596MWh/ (capacity-load ratio is calculated by 1), by 0.5 yuan of calculating of every degree electricity, is expected to improve 79.8 ten thousand yuan of sale of electricity volumes every year.
As can be seen from the above, the disclosed wiring system of the application has been used isolation circuit breakers to substitute circuit breaker, current sensor, and a part of isolating switch and earthed switch, and components and parts are less, simple in structure, relative reduce the maintenance work difficulty.
And along with the simplification of wiring system, the reliability of system is corresponding to be improved, and in the time of can making to power, number is improved, and then increased the sale of electricity volume for electrical network.
Finally, also it should be noted that, in this article, relational terms such as the first and second grades only is used for an entity or operation are separated with another entity or operating space, and not necessarily requires or imply between these entities or operation the relation of any this reality or sequentially of existing.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make the process, method, article or the equipment that comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.In the situation that not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the application.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the application's spirit or scope, realization in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. the wiring system of a 220kV transformer station, is characterized in that, comprising:
At least one end of incoming cables;
The first isolation circuit breakers that inlet wire side and described end of incoming cables are coupled;
The bus be coupled with the outgoing line side of described the first isolation circuit breakers;
At least one leading-out terminal;
The second isolation circuit breakers that outgoing line side and described leading-out terminal are coupled;
Inlet wire side and the described bus of described the second isolation circuit breakers are coupled.
2. wiring system as claimed in claim 1, described bus comprises the first bus and the second bus, it is characterized in that, also comprises:
For the 3rd isolation circuit breakers that described the first bus and described the second bus are in parallel;
The outgoing line side of described the first isolation circuit breakers is coupled with described the first bus, the second bus respectively;
The inlet wire side of described the second isolation circuit breakers is coupled with described the first bus, the second bus respectively.
3. wiring system as claimed in claim 2, is characterized in that, also comprises:
The first electronic type current sensor be coupled with described end of incoming cables;
The second electronic type current sensor be coupled with described leading-out terminal;
The 3rd electronic type current sensor be coupled with described the first bus;
The quadrielectron formula current sensor be coupled with described the second bus.
4. wiring system as claimed in claim 2 or claim 3, is characterized in that, also comprises:
Two the first isolating switches that are coupled with described the first bus, described the second bus respectively for the outgoing line side by described the first isolation circuit breakers;
Two the second isolating switches that are coupled with described the first bus, described the second bus respectively for the inlet wire side by described the second isolation circuit breakers;
Two the 3rd isolating switches for described the 3rd isolation circuit breakers is coupled with described the first bus, described the second bus respectively.
5. wiring system as claimed in claim 4, is characterized in that, described end of incoming cables is 6, and described leading-out terminal is 3.
6. wiring system as claimed in claim 5, is characterized in that, also comprises:
The first lightning arrester be coupled with described the first bus;
The second lightning arrester be coupled with described the second bus;
The 3rd lightning arrester be coupled with described leading-out terminal;
The first earthed switch be coupled with described the first bus;
The second earthed switch be coupled with described the second bus;
The first electrification display be coupled with described the first bus;
The second electrification display be coupled with described the second bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203905586U CN203339501U (en) | 2013-07-02 | 2013-07-02 | Wiring system used for 220kV transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203905586U CN203339501U (en) | 2013-07-02 | 2013-07-02 | Wiring system used for 220kV transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203339501U true CN203339501U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203905586U Expired - Lifetime CN203339501U (en) | 2013-07-02 | 2013-07-02 | Wiring system used for 220kV transformer substation |
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| Country | Link |
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| CN (1) | CN203339501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356308A (en) * | 2015-10-28 | 2016-02-24 | 国家电网公司 | Double-bus wiring structure |
-
2013
- 2013-07-02 CN CN2013203905586U patent/CN203339501U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356308A (en) * | 2015-10-28 | 2016-02-24 | 国家电网公司 | Double-bus wiring structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 400030, 60 South Sha Street, Shapingba District, Chongqing Patentee after: CHONGQING ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: 401125 Fenghuang block D, 20 Qingfeng North Road, Yubei District, Chongqing Patentee before: CHONGQING ELECTRIC POWER DESIGN INSTITUTE |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| CX01 | Expiry of patent term |