CN206759143U - Plant standby power supply system - Google Patents
Plant standby power supply system Download PDFInfo
- Publication number
- CN206759143U CN206759143U CN201720626127.3U CN201720626127U CN206759143U CN 206759143 U CN206759143 U CN 206759143U CN 201720626127 U CN201720626127 U CN 201720626127U CN 206759143 U CN206759143 U CN 206759143U
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- generating set
- generator
- bus bar
- transformer
- generating
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- 230000005611 electricity Effects 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000006837 decompression Effects 0.000 claims abstract description 5
- 230000009897 systematic effect Effects 0.000 claims description 3
- 230000009466 transformation Effects 0.000 description 10
- 241000196324 Embryophyta Species 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Supply And Distribution Of Alternating Current (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model discloses a kind of plant standby power supply system, it is characterised in that the system includes：First generating set set, including at least 3 generating sets, for, to power network distribution, while providing station service by corresponding main electrical scheme；1 startup spare transformer, one end is connected with the auxiliary bus bar of each generating set, the other end is connected by main electrical scheme with power network, for will provide station service to the auxiliary bus bar of the fault generator group after the electricity decompression in power network in the case of the generating set failure；Wherein, every generating set includes following more persons：Generator, pass through Generator Outlet Switchgear power transmission；Main transformer, it is connected by the Generator Outlet Switchgear with generator, and the electric current that the generator is sent is incorporated to power network；High-voltage Auxiliary Working transformer, one end are connected by the Generator Outlet Switchgear with generator, and the other end is connected with the auxiliary bus bar of the generating set.
Description
Technical field
Station service electrical system is the utility model is related to, more particularly to plant standby power supply system.
Background technology
Station service electrical system is typically set by the step voltage of 6kv, 0.4kv two, and subdistribution transformer depressor and large capacity motor are born
Lotus is powered by 6kv, and the low-voltage load such as low capacity motor, illumination and maintenance is powered by 0.4kv.Unit sets high-voltage Auxiliary work and become
Depressor and start spare transformer, power supply is connected to by power network power supply in the case of unit starting and accident starts standby transformation
Device, is supplied to 6kv station service electrical system buses after decompression, during unit normal operation power supply by house branch bus bus by each spontaneous
Motor outlet extraction is connected to high-voltage Auxiliary Working transformer, and the conventional arrangement of spare transformer is generally two units and shared
One transformer, the half according to the quantity of the startup spare transformer in conventional arrangement power plant for unit quantity, more
It is expensive to start spare transformer equipment investment, and area occupied is bigger, is that system is more complicated, it has not been convenient to manage.
Utility model content
The purpose of this utility model is to overcome generating set existing for prior art to set more to start standby transformation
Device equipment investment is expensive, and the bigger problem of area occupied, there is provided a kind of plant standby power supply system, the system use more
The mode of the public startup spare transformer of generating set, overcomes the defects of above-mentioned existing issue, specifically, Ke Yitong
Cross at least 3 generating sets and form a generating set set, and every generating set by corresponding main electrical scheme to power network distribution,
There is provided station service simultaneously；One end of the startup spare transformer is connected with the auxiliary bus bar of each generating set, the other end
Be connected by main electrical scheme with power network, in the case of the generating set failure by after the electricity decompression in power network to the failure
The auxiliary bus bar of generating set provides station service wherein, and every generating set includes following more persons：Generator, pass through
Generator Outlet Switchgear power transmission；Main transformer, it is connected by the Generator Outlet Switchgear with generator, and by the generator
The electric current sent is incorporated to power network；High-voltage Auxiliary Working transformer, one end are connected by the Generator Outlet Switchgear and generator
Connect, the other end is connected with the auxiliary bus bar of the generating set.It can be realized by the system and not change generating set number
In the case of amount, the structural change by original every public startup spare transformer of two generating sets is all generators
Group shares a startup spare transformer, saves equipment investment, and reduces equipment occupation of land, while by simple system.
To achieve these goals, on the one hand the utility model provides a kind of plant standby power supply system, the system bag
Include：First generating set set, including at least 3 generating sets, for, to power network distribution, being provided by corresponding main electrical scheme simultaneously
Station service；1 startup spare transformer, one end are connected with the auxiliary bus bar of each generating set, and the other end is connect by master
Line is connected with power network, in the case of the generating set failure by after the electricity decompression in power network to the fault generator group
The auxiliary bus bar provide station service；Wherein, every generating set includes following more persons：Generator, pass through generator
Gate out switch power transmission；Main transformer, it is connected by the Generator Outlet Switchgear with generator, and the generator is sent
Electric current is incorporated to power network；High-voltage Auxiliary Working transformer, one end is connected by the Generator Outlet Switchgear with generator, another
End is connected with the auxiliary bus bar of the generating set.
Preferably, the system also includes the second generating set set, including one or more described generating set.
Preferably, the system also includes power distribution equipment, for being worked in the second generating set set mesohigh station-service
The station service that the startup spare transformer provides is received in the case of transformer fault and is transmitted to second generating set
In set on the auxiliary bus bar of failure unit.
Preferably, the power distribution equipment shuts down section by cable and systematic failures and switchs side, and passes through the accidental shutdown
The bus of section is drawn by isolated-phase enclosed bus is connected in the second generating set set station-service mother corresponding to every generating set
On line.
Preferably, the system also includes reactor, the reactor one end connection power distribution equipment, described in other end connection
Auxiliary bus bar corresponding to every generating set in second generating set set.
Pass through above-mentioned technical proposal, a generating set set is formed by least three generating sets, the generating set collection
A public startup spare transformer is closed, i.e., by the structure of original every public startup spare transformer of two generating sets
Change into all generating sets and share a startup spare transformer, save equipment investment, and reduce equipment occupation of land, simultaneously
By simple system.
Brief description of the drawings
Fig. 1 is a kind of the first generating set of plant standby power supply system set connection that the utility model embodiment provides
Schematic diagram；
Fig. 2 is a kind of plant standby power supply system connection diagram that the utility model embodiment provides.
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
In the utility model, in the case where not making opposite explanation, the noun of locality such as " upper and lower, left and right " that uses,
" inside and outside ", " remote, near " refer to the direction of refer to the attached drawing, and therefore, use direction term is for illustrating not to be to limit this practicality
It is new.
Fig. 1 shows a kind of the first generating set of plant standby power supply system set that the utility model embodiment provides
Connection diagram, as shown in figure 1, the system includes the first generating set set, the generating set set can include 4 generatings
Unit, every generating set, to power network distribution, can also provide station service by main electrical scheme by 6KV auxiliary bus bars；The system
Also include a startup spare transformer, its one end is connected by main electrical scheme with power network, the 6KV of the other end and every generating set
Auxiliary bus bar connects；Wherein, every generating set can include generator main transformer, high-voltage Auxiliary Working transformer, the hair
Motor is configured with Generator Outlet Switchgear, can be gone out by the outside power transmission of Generator Outlet Switchgear, the main transformer with generator
Mouth switch connection, receive the power transmission of generator and become after carrying out transformation by main electrical scheme to power network distribution, high-voltage Auxiliary work
Depressor one end connection Generator Outlet Switchgear other end connection 6KV auxiliary bus bars, can receive generator power transmission and carry out transformation
After station service is provided；In generating set, in the case of generator failure and the non-failure of high-voltage Auxiliary Working transformer, the unit
It can not continue to provide station service, now system control Generator Outlet Switchgear disconnects, while connects electricity from power network and pass through high-voltage Auxiliary
Transmitted after the change press operation of Working transformer to the 6KV auxiliary bus bars of the failure unit, to continue to provide station service；In high pressure
In the case of station-service Working transformer failure, high-voltage Auxiliary Working transformer can not carry out transformation action, different from high-voltage Auxiliary
The situation of the non-failure of Working transformer, the unit can not both continue to provide station service, directly can not connect electric use from power network again, this
When can connect electricity from power network by starting spare transformer and transmit to the 6KV auxiliary bus bars of the unit after carrying out transformation operation
On, to continue to provide station service.The situation of generating set failure has clearly been divided in above-mentioned technical proposal, it is real for different situations
Different schemes are applied, to ensure the lasting offer of station service, wherein, directly connect electric transformation from power network in high-voltage Auxiliary Working transformer
In the case that transmission provides station service, Generator Outlet Switchgear is disconnected to protect generator not influenceed by electric current, avoids secondary thing
Therefore generation.
Fig. 2 shows a kind of plant standby power supply system connection diagram that the utility model embodiment provides, such as Fig. 2
Shown, the system can also include the second generator set, and the second generator set can include 2 generating sets, and this is
System also includes power distribution equipment, and the power distribution equipment is used for the feelings in the second generating set set mesohigh station-service Working transformer failure
The station-service mother for starting the station service that spare transformer provides and transmitting the failure unit into the second generating set set is received under condition
On line, specifically, in the case of generator failure and the non-failure of high-voltage Auxiliary Working transformer, the unit can not continue to provide
Station service, now system control Generator Outlet Switchgear disconnects, while connects electricity by high-voltage Auxiliary Working transformer from power network
Transmitted after becoming press operation to the 6KV auxiliary bus bars of the failure unit, to continue to provide station service；In high-voltage Auxiliary work transformation
In the case of device failure, high-voltage Auxiliary Working transformer can not carry out transformation action, different from high-voltage Auxiliary Working transformer not
The situation of failure, the unit can not both continue to provide station service, directly can not connect electric use from power network again, now can be by opening
Dynamic spare transformer connects electricity from power network and transmitted by power distribution equipment to the 6KV auxiliary bus bars of the unit after transformation operation
On, to continue to provide station service.
In embodiment, power distribution equipment shuts down section by cable and systematic failures and switchs side, and passes through the accidental shutdown
The bus of section is drawn by isolated-phase enclosed bus to be connected in the second generating set set corresponding to every generating set on auxiliary bus bar,
It can realize and avoid influencing each other between the external world and bus, ensure the smooth transport current of bus, while add security.
In embodiment, the system can also include reactor, reactor one end connection power distribution equipment, other end connection
Auxiliary bus bar corresponding to every generating set in second generating set set, it is possible to achieve carry out short circuit current when electric current transmits
Limitation, ensure the safe operation of system.
Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing
In this.In range of the technology design of the present utility model, a variety of simple variants can be carried out to the technical solution of the utility model,
It is combined in any suitable manner including each particular technique feature.In order to avoid unnecessary repetition, the utility model
Various combinations of possible ways are no longer separately illustrated.But these simple variants and combination should equally be considered as the utility model institute
Disclosure, belong to the scope of protection of the utility model.
Claims (5)
1. a kind of plant standby power supply system, it is characterised in that the system includes：
First generating set set, including at least 3 generating sets, for, to power network distribution, being carried by corresponding main electrical scheme simultaneously
For station service；
1 startup spare transformer, one end be connecteds with the auxiliary bus bar of each generating set, the other end by main electrical scheme and
Power network connects, in the case of the generating set failure by after the electricity decompression in power network to the institute of the fault generator group
State auxiliary bus bar and station service is provided；
Wherein, every generating set includes following more persons：
Generator, pass through Generator Outlet Switchgear power transmission；
Main transformer, it is connected by the Generator Outlet Switchgear with generator, and the electric current that the generator is sent is incorporated to
To power network；
High-voltage Auxiliary Working transformer, one end are connected by the Generator Outlet Switchgear with generator, the other end and the generating
The auxiliary bus bar connection of unit.
2. system according to claim 1, it is characterised in that the system also includes the second generating set set, including one
Platform or the more generating sets.
3. system according to claim 2, it is characterised in that the system also includes power distribution equipment, for described second
The station-service that the startup spare transformer provides is received in the case of generating set set mesohigh station-service Working transformer failure
Electricity is simultaneously transmitted into the second generating set set on the auxiliary bus bar of failure unit.
4. system according to claim 3, it is characterised in that the power distribution equipment shuts down section by cable and systematic failures
Side is switched, and the bus Jing Guo the accidental shutdown section is drawn by isolated-phase enclosed bus and is connected in the second generating set set
Corresponding to every generating set on auxiliary bus bar.
5. system according to claim 4, it is characterised in that the system also includes reactor, reactor one end connection
The power distribution equipment, the other end connect auxiliary bus bar corresponding to every generating set in the second generating set set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720626127.3U CN206759143U (en) | 2017-06-01 | 2017-06-01 | Plant standby power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720626127.3U CN206759143U (en) | 2017-06-01 | 2017-06-01 | Plant standby power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206759143U true CN206759143U (en) | 2017-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720626127.3U Active CN206759143U (en) | 2017-06-01 | 2017-06-01 | Plant standby power supply system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206759143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620428A (en) * | 2019-10-31 | 2019-12-27 | 大唐郓城发电有限公司 | High-voltage station service system |
| CN111327106A (en) * | 2020-02-26 | 2020-06-23 | 华兰生物工程重庆有限公司 | Dual-power automatic switching power supply system |
-
2017
- 2017-06-01 CN CN201720626127.3U patent/CN206759143U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620428A (en) * | 2019-10-31 | 2019-12-27 | 大唐郓城发电有限公司 | High-voltage station service system |
| CN111327106A (en) * | 2020-02-26 | 2020-06-23 | 华兰生物工程重庆有限公司 | Dual-power automatic switching power supply system |
| CN111327106B (en) * | 2020-02-26 | 2023-09-08 | 华兰生物工程重庆有限公司 | Dual-power automatic switching power supply system |
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