CN204835231U - Mix wiring high voltage power distribution device - Google Patents

Mix wiring high voltage power distribution device Download PDF

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Publication number
CN204835231U
CN204835231U CN201520406321.1U CN201520406321U CN204835231U CN 204835231 U CN204835231 U CN 204835231U CN 201520406321 U CN201520406321 U CN 201520406321U CN 204835231 U CN204835231 U CN 204835231U
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CN
China
Prior art keywords
bus
transformer
circuit breaker
high voltage
circuit
Prior art date
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Withdrawn - After Issue
Application number
CN201520406321.1U
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Chinese (zh)
Inventor
陆浩
程伟科
白雪松
邢宝欣
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Inner Mongolia Electric Power Survey and Design Institute Co Ltd
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Inner Mongolia Electric Power Survey and Design Institute Co Ltd
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Priority to CN201520406321.1U priority Critical patent/CN204835231U/en
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Publication of CN204835231U publication Critical patent/CN204835231U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a mix wiring high voltage power distribution device, this high voltage power distribution device are used for the transformer substation, including single bus scheme part, double bus scheme subtotal network interconnecting circuit breaker, wherein single bus scheme subtotal double bus scheme part is connected through network interconnecting circuit breaker, network interconnecting circuit breaker is located between the second generating line or third generating line of partial first generating line of single bus scheme and double bus scheme part, and network interconnecting circuit breaker's one end and first generating line are connected, and the other end is connected with second generating line or third generating line. The utility model discloses can ensure that the high voltage power distribution device after the enlargement is reformed transform obtains higher reliability and flexibility, avoid expanding the long -time loss that has a power failure and bring of in -process simultaneously, also can effectively shorten construction cycle.

Description

Mixing wiring high voltage distribution installation
Technical field
The utility model belongs to technical field of electric power, is specifically related to a kind of mixing wiring high voltage distribution installation for transformer station.
Background technology
Wind energy is developed on a large scale as a kind of clean energy resource.In the construction of wind energy turbine set booster stations, often needing existing for former booster stations single bus scheme mode plant retrofit is double bus scheme mode.
Figure 1 shows that single bus scheme figure, wherein CBT1 is transformer lead-in circuit breaker, and CBL1 is transmission line circuit circuit breaker.When CBT1, CBL1 two breaker closings, the path that the electric energy that transformer 1 is carried is formed by two circuit breakers is sent via outlet 1.When transformer or number of outgoing increase, through being sent by circuit after the electric energy that transformer is carried is confluxed by bus 1.But, if transformer and transmission line circuit number more, reliability and the operational flexibility of above-mentioned single bus scheme mode cannot meet the demands, such as when bus 1 fault or interruption maintenance, all transformers and circuit all need interruption of power supply, therefore, now need consideration to transform double bus scheme mode as.
Figure 2 shows that improved double bus scheme figure, wherein CBT1, CBT2, CBT3 are transformer lead-in circuit breaker, and CBL1, CBL2, CBL3, CBL4 are transmission line circuit circuit breaker.Wherein transformer 1, outlet 1, CBT1 and CBL1 are that original single bus scheme builds equipment, and transformer 2, transformer 3, outlet 2, outlet 3, outlet 4, CBT2, CBT3, CBL2, CBL3, CBL4 are follow-up enlarging equipment.
Original transformer 1 and outlet 1, through transformation, are connected with bus 1 and bus 2 by CBT1, CBL1 simultaneously, jointly send after two buses collect with the transformer 2 extended, transformer 3, outlet 2, outlet 3, outlet 4.When arbitrary busbar fault in bus 1 and bus 2 or maintenance have a power failure, each transformer and circuit can switch to the normal bus run and continue power supply, and power supply reliability and operational flexibility are higher than single bus scheme mode.But, as completely according to above-mentioned double bus scheme mode upgrading station, although reliability and flexibility improve, but the retrofit work amount of extension stage to former transformer 1 and outlet 1 is larger, need CBT1 and CBL1 to be accessed two buses, the transformation cycle is long, and the economic loss that power failure causes is larger.
Summary of the invention
The purpose of this utility model is exactly the technical problem for existing in prior art, proposes a kind of high voltage distribution installation mixing wiring, can shorten the transformation cycle of time variant voltage high voltage distribution installation, reduces the economic loss having a power failure and cause as much as possible.
In order to achieve the above object, the utility model proposes a kind of mixing wiring high voltage distribution installation, it is applicable to transformer station, this high voltage distribution installation comprises single bus scheme part, double bus scheme part and network interconnecting circuit, and wherein single bus scheme part is connected by network interconnecting circuit with double bus scheme part; Single bus scheme part comprises the first bus, at least one first transformer, at least one first transformer lead-in circuit breaker, at least one first transmission line circuit circuit breaker, at least one first outlet; Wherein the first transformer is connected with the first bus by corresponding first transformer lead-in circuit breaker, first bus is connected with the first corresponding outlet by the first transmission line circuit circuit breaker, electric energy after the first transformer, the first transformer lead-in circuit breaker, the first bus, the first transmission line circuit circuit breaker, is sent by the first outlet successively; Double bus scheme part comprises the second bus, triple bus-bar, at least one second transformer, at least one second transformer lead-in circuit breaker, at least one second transmission line circuit circuit breaker, at least one second outlet; Wherein the second transformer is connected with triple bus-bar with the second bus by corresponding second transformer lead-in circuit breaker simultaneously, second bus and triple bus-bar are connected with the second corresponding outlet by the second transmission line circuit circuit breaker simultaneously, electric energy after the second transformer, the second transformer lead-in circuit breaker, the second bus and/or triple bus-bar, the second transmission line circuit circuit breaker, is sent by the second outlet successively; Network interconnecting circuit is between the first bus and the second bus or triple bus-bar, and one end of network interconnecting circuit is connected with the first bus, and the other end is connected with the second bus or triple bus-bar.
Preferably, but two parts engineering that single bus scheme part and double bus scheme part Minute stage construction complete, and after complete part construction can not affect completed part powered operation.
Preferably, this high voltage distribution installation is applicable to various electric pressure.
Preferably, described electric pressure is 20kV, 35kV, 66kV, 110kV, 220kV or 500kV.
Preferably, the first transformer connect in single busbar connection and the first number of outgoing are not limit, and the second transformer connect in double-bus and the second number of outgoing are not also limit.
The beneficial effects of the utility model are: in the plant retrofit process of time variant voltage high voltage distribution installation, by adopting this mixing connection plan, can either effectively transform original single bus scheme, obtain the effect of double-bus reliability and flexibility raising, the normal operation of existing single busbar connection equipment can be ensured again, avoid having a power failure for a long time the loss brought, also effectively shorten the construction period of plant retrofit simultaneously.
Accompanying drawing explanation
Figure 1 shows that the single bus scheme figure of high voltage distribution installation of the prior art;
Figure 2 shows that the double bus scheme figure of high voltage distribution installation of the prior art;
Figure 3 shows that the mixing winding diagram of high voltage distribution installation of the present utility model.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and it only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
The high voltage distribution installation connection plan of certain wind energy turbine set booster stations, when this project first phase is built, 220kV system wiring adopts single bus scheme scheme, but, when follow-up enlarging, due to network system planning change, its 220kV booster stations change into need take into account that other wind energy turbine set send collect station, because 220kV line loop is increased, 220kV system wiring requires to adopt double bus scheme mode.
Consider that first stage of the project puts into operation, as completely according to double-bus retrofit scheme booster stations, then can cause greater loss due to the long-time power failure transformation of first phase wind field, in order to complete the construction of 220kV double bus wiring scheme for double under the prerequisite reducing first stage of the project interruption duration as far as possible, design have employed a kind of single, double busbar mixing connection plan, the single busbar connection that first phase is built is connected by one section of bus of section breaker with the double-bus of follow-up construction, what achieve booster stations collects station function, improves flexibility and reliability that first stage of the project electric energy sends simultaneously.
Figure 3 shows that plant retrofit complete after the mixing winding diagram of high voltage distribution installation, as shown in the figure, the left side of network interconnecting circuit CBC is that engineering first phase completes single busbar connection part, and right side is the double-bus part that enlarging increases, and single busbar connection part is connected by network interconnecting circuit CBC with double-bus part.
CBT is transformer lead-in circuit breaker, comprises CBT1,2,3; CBL is transmission line circuit circuit breaker, comprises CBL1,2,3,4.Bus 1, transformer 1, outlet 1, CBT1, CBL1 are the equipment that engineering first phase single bus scheme scheme has been built.Wherein, transformer 1 is connected with bus 1 by CBT1, and bus 1 is connected with outlet 1 by CBL1, and electric energy after transformer 1, CBT1, bus 1, CBL1, is sent by outlet 1 successively.
Bus 2, bus 3, transformer 2, transformer 3, outlet 2, outlet 3, outlet 4, CBT2, CBT3, CBL2, CBL3, CBL4 are follow-up enlarging equipment, and the said equipment of follow-up enlarging adopts the wiring of double-bus scheme.Wherein, transformer 2 is connected with bus 3 with bus 2 by CBT2 simultaneously, transformer 3 is connected with bus 3 with bus 2 by CBT3 simultaneously, bus 2 is connected with outlet 2 by CBL2 with bus 3 simultaneously, bus 2 is connected with outlet 3 by CBL3 with bus 3 simultaneously, bus 2 is connected with outlet 4 by CBL4 with bus 3 simultaneously, and the approach of the output pathway of electric energy and transformer 1, bus 1 and outlet 1 is similar.
Wherein, CBC is network interconnecting circuit, the bus 1 of former single bus scheme links together with the bus 2 in the double-bus of follow-up enlarging by CBC, it should be noted that, CBC also can connection bus 1 and bus 3, and namely CBC only needs the wherein one section of bus in former single busbar connection and double-bus to link together.
The plant retrofit method of this wind energy turbine set booster stations high voltage distribution installation specifically comprises the following steps:
The first step: the completed equipment of the employing single bus scheme be made up of bus 1, transformer 1, outlet 1, transformer lead-in circuit breaker CBT1, transmission line circuit circuit breaker CBL1 keeps normal power supply to run;
Second step: build the follow-up enlarging equipment installed and connect the employing double bus scheme be made up of bus 2, bus 3, transformer 2, transformer 3, outlet 2, outlet 3, outlet 4, transformer lead-in circuit breaker CBT2, CBT3, transmission line circuit circuit breaker CBL2, CBL3, CBL4;
3rd step: build and install network interconnecting circuit CBC, it is between bus 1 and bus 2 or bus 3;
4th step: make the of short duration operation of stopping power supply of single bus scheme equipment comprising bus 1, transformer 1, outlet 1, in outage, be connected one end of network interconnecting circuit CBC with bus 1, the other end is connected with bus 2 or bus 3;
5th step: recover normal power supply.
Single bus scheme is constituted one with double bus scheme by network interconnecting circuit CBC and mixes connection plan by this extension, original single bus scheme scheme is without the need to changing, and follow-up newly-built transformer 2, transformer 3, outlet 2, outlet 3, outlet 4 are pressed double bus wiring scheme for double and connected.The construction of transformer 2, transformer 3, outlet 2, outlet 3, outlet 4 and bus 2, bus 3 can be carried out under the prerequisite of transformer 1 and outlet 1 normal power supply during enlarging, very short power failure is only needed after having built, utilize network interconnecting circuit CBC to be connected with bus 2 by bus 1, can normal power supply be recovered.Both decrease the economic loss having a power failure and cause, in turn ensure that the power supply reliability after enlarging and flexibility.
To sum up, key technology of the present utility model is just to be connected by one section of bus of original single busbar connection with the double-bus of enlarging by network interconnecting circuit, form a kind of mixing connection plan, this programme is applicable to various electric pressure, comprise 20kV, 35kV, 66kV, 110kV, 220kV, 500kV, the transformer connect in former single busbar connection and number of outgoing are not limit, and transformer and the number of outgoing of follow-up enlarging are not also limit.Power supply reliability and flexibility are suitable with prior art, but transformation interruption duration is short, decreases economic loss.
It should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.

Claims (5)

1. mix a wiring high voltage distribution installation, it is characterised in that for transformer station:
This high voltage distribution installation comprises single bus scheme part, double bus scheme part and network interconnecting circuit, and wherein single bus scheme part is connected by network interconnecting circuit with double bus scheme part;
Single bus scheme part comprises the first bus, at least one first transformer, at least one first transformer lead-in circuit breaker, at least one first transmission line circuit circuit breaker, at least one first outlet;
Wherein the first transformer is connected with the first bus by corresponding first transformer lead-in circuit breaker, first bus is connected with the first corresponding outlet by the first transmission line circuit circuit breaker, electric energy after the first transformer, the first transformer lead-in circuit breaker, the first bus, the first transmission line circuit circuit breaker, is sent by the first outlet successively;
Double bus scheme part comprises the second bus, triple bus-bar, at least one second transformer, at least one second transformer lead-in circuit breaker, at least one second transmission line circuit circuit breaker, at least one second outlet;
Wherein the second transformer is connected with triple bus-bar with the second bus by corresponding second transformer lead-in circuit breaker simultaneously, second bus and triple bus-bar are connected with the second corresponding outlet by the second transmission line circuit circuit breaker simultaneously, electric energy after the second transformer, the second transformer lead-in circuit breaker, the second bus and/or triple bus-bar, the second transmission line circuit circuit breaker, is sent by the second outlet successively;
Network interconnecting circuit is between the first bus and the second bus or triple bus-bar, and one end of network interconnecting circuit is connected with the first bus, and the other end is connected with the second bus or triple bus-bar.
2. mixing wiring high voltage distribution installation according to claim 1, it is characterized in that: but two parts engineering that single bus scheme part and double bus scheme part Minute stage construction complete, and after complete part construction can not affect completed part powered operation.
3. mixing wiring high voltage distribution installation according to claim 1 and 2, is characterized in that: this high voltage distribution installation is applicable to various electric pressure.
4. mixing wiring high voltage distribution installation according to claim 3, is characterized in that: described electric pressure is 20kV, 35kV, 66kV, 110kV, 220kV or 500kV.
5. mixing wiring high voltage distribution installation according to claim 1 and 2, it is characterized in that: the first transformer connect in single busbar connection and the first number of outgoing are not limit, the second transformer connect in double-bus and the second number of outgoing are not also limit.
CN201520406321.1U 2015-06-12 2015-06-12 Mix wiring high voltage power distribution device Withdrawn - After Issue CN204835231U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520406321.1U CN204835231U (en) 2015-06-12 2015-06-12 Mix wiring high voltage power distribution device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520406321.1U CN204835231U (en) 2015-06-12 2015-06-12 Mix wiring high voltage power distribution device

Publications (1)

Publication Number Publication Date
CN204835231U true CN204835231U (en) 2015-12-02

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104953478A (en) * 2015-06-12 2015-09-30 内蒙古电力勘测设计院有限责任公司 Hybrid-wiring high-voltage distribution device and expansion and reconstruction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104953478A (en) * 2015-06-12 2015-09-30 内蒙古电力勘测设计院有限责任公司 Hybrid-wiring high-voltage distribution device and expansion and reconstruction method thereof

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AV01 Patent right actively abandoned

Granted publication date: 20151202

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