CN202068231U - Standby power wiring structure with voltage regulating function used for station - Google Patents
Standby power wiring structure with voltage regulating function used for station Download PDFInfo
- Publication number
- CN202068231U CN202068231U CN2011202060085U CN201120206008U CN202068231U CN 202068231 U CN202068231 U CN 202068231U CN 2011202060085 U CN2011202060085 U CN 2011202060085U CN 201120206008 U CN201120206008 U CN 201120206008U CN 202068231 U CN202068231 U CN 202068231U
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- 230000001105 regulatory effect Effects 0.000 title abstract description 8
- 230000005611 electricity Effects 0.000 claims description 32
- 238000010276 construction Methods 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000007363 regulatory process Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000001131 transforming 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)
Abstract
The utility model discloses a standby power wiring structure with voltage regulating function used for a station, which comprises a working power, a working transformer used for the station, a standby power, a standby transformer, a working power incoming fuse, a standby power incoming fuse and an electric system 380/220V bus used for the station. The standby power wiring structure with voltage regulating function used for the station has the advantages that: firstly, the voltage regulating scope is large, and ranges from 20 percent below zero to 20 percent; secondly, a graded compensation voltage regulating technology is employed to realize automatic voltage regulating and realize synchronous compensation with the system voltage; thirdly, no power-off clearances exists during the voltage regulating process; fourthly, the power consumption is lower and is less than 1 percent; and fifthly, the standby power wiring structure with voltage regulating function used for the station has lower cost, can save the investment and is safe and reliable.
Description
Technical field
The utility model relates to a kind of station stand-by power supply wiring construction, particularly relates to a kind of station with voltage regulation function stand-by power supply wiring construction.
Background technology
The station using electricity system of transformer station provides power supply for transformer station's inside power load, to guarantee that transformer station normally moves.The utilization voltage grade of standing generally adopts 380/220V.Be to guarantee the reliability of station with power supply, its working power is drawn by transforming plant main transformer depressor low-pressure side and is connect, and stand-by power supply is drawn by the station external power grid usually and connects.
For the transformer station in some remote areas or the primary substation of wind power plant, its station electricity consumption stand-by power supply draws usually near rural power grids 10kV system, because the 10kV circuit is longer, quality of voltage can not get guaranteeing, the utilization voltage of often standing is on the low side, voltage fluctuation is bigger, and difficult prediction can not be satisfied station using electricity system voltage deviation to be no more than ± 5% requirement.
At present, realize adjusting by being equiped with on-load shunting switch with the high-pressure side of spare transformer to the using electricity system low-voltage bus bar voltage of standing at the station.On load tap changer is a kind of switching device that constant voltage is provided when the load variations for transformer.Its basic principle is exactly to guarantee under the situation of interrupt load electric current not, realizes the automatic switchover between the tap in the Transformer Winding, thereby changes the number of turn of winding, i.e. the voltage ratio of transformer finally realizes the purpose of pressure regulation.When mains side is the high side voltage reduction, by the number of turn of switch minimizing transformer high-voltage coil, reduce the voltage ratio of transformer high-low pressure, low voltage voltage can not reduced with the reduction of high tension voltage, vice versa.Usually the range of regulation of 10kV on-load tap-changing transformer is ± 4 * 2.5%, promptly when system voltage changes in ± 10%, the voltage of step down side can be adjusted in the allowed band.But for the transformer station or the wind energy turbine set primary substation in some remote areas, the fluctuation range of the electricity consumption 10kV stand-by power supply of standing tends to exceed ± and 10%, therefore, there is certain limitation in the employing of on-load tap-changing transformer scheme.
Transformer configuration on-load voltage regulation tap influences the transformer reliability of operation.Nineteen eighty-two, the international conference on large HV electric systems transformer committee proposed a report, had particularly pointed out the tap of on-load regulation voltage, and not only self is unreliable, has also increased the complexity of transformer global design simultaneously.In addition, on-load tap-changing transformer produces electric arc inevitably because on-load is adjusted voltage, and it gathers free transformer oil, and the gas in the on-load tap-changing transformer is emerged, and also can cause misoperation or mistaking signal sometimes.
Transformer configuration behind the on-load voltage regulation tap, bigger on the volume than transformer with capacity, not only increased the investment of transformer, also increased simultaneously operation and maintenance cost, when the maintenance pressure regulating box, the power failure required time is also longer on the other hand.For example, about 300,000 yuan of SCZ-800/10 type 10 kV dry type on-load tap-changing transformer, and just about 200,000 yuan of SC-800/10 type 10 kV off circuit tap changing transfor mers have increased investment about 1/3.In addition, frequent movement on load tap changer and transmission mechanism thereof have also increased operational management and maintenance cost.
Summary of the invention
The purpose of this utility model is to provide a kind of station with voltage regulation function stand-by power supply wiring construction.
The purpose of this utility model is implemented by following technical scheme, a kind of station stand-by power supply wiring construction with voltage regulation function, it comprises working power, stand and use Working transformer, stand-by power supply, spare transformer, the working power lead-in circuit breaker, stand-by power supply lead-in circuit breaker and station using electricity system 380/220V bus, described working power output is connected with the high voltage input terminal of described station with Working transformer through lead, described station is connected with described station using electricity system 380/220V bus through lead with the low-voltage output of Working transformer, connect described station and be provided with described working power lead-in circuit breaker with the lead of Working transformer and described station using electricity system 380/220V bus, described stand-by power supply output is connected with the high voltage input terminal of described spare transformer through lead, it also includes the automatic grading compensation device of voltage, the low-voltage output of described spare transformer is connected through the automatic grading compensation device of lead and described voltage, the automatic grading compensation device of described voltage is connected with described station using electricity system 380/220V bus through lead, described stand-by power supply lead-in circuit breaker is arranged on the lead that connects described spare transformer and the automatic grading compensation device of described voltage, or is arranged on the lead that connects automatic grading compensation device of described voltage and described station using electricity system 380/220V bus.
The using electricity system 380/220V bus of standing connects 1 road or 2 tunnel working powers by drawing in the station respectively, connects No. 1 stand-by power supply by drawing outside the station.With being connected to station using electricity system 380/220V bus after the Working transformer step-down, stand-by power supply is via standing with being connected to station using electricity system 380/220V bus after the spare transformer step-down via the station for working power.The two-way power supply drops into and withdraws from operation by working power lead-in circuit breaker and stand-by power supply lead-in circuit breaker respectively.The automatic grading compensation device of voltage is installed between stand-by power supply lead-in circuit breaker and the station using electricity system 380/220V bus as embodiment 1, also can be installed between station usefulness spare transformer low-pressure side and the stand-by power supply lead-in circuit breaker as embodiment 2.
Under the normal condition, the using electricity system of standing is used the work transformer-supplied by the station, working power lead-in circuit breaker closure, and the stand-by power supply lead-in circuit breaker is opened, and the using electricity system 380/220V bus of standing is powered with the station power load of working power below it by the station.
When the operate as normal power supply because failure and other reasons when out of service, the working power lead-in circuit breaker is opened, stand-by power supply lead-in circuit breaker closure, stand-by power supply are adjusted to after the qualified voltage level via the automatic grading compensation device of voltage and power to station using electricity system 380/220V bus station power load down.
Advantage of the present utility model is, 1, range of regulation is big.Voltage-regulation scope from-20% to+20%; 2, adopt the grading compensation voltage-regulating technique, realize automatic Regulation, realize and system voltage synchroballistic; 3, there is not the outage gap in the pressure regulation process; 4, the utility model power consumption is little, power consumption less than 1%; 5, price is lower, reduces investment outlay, and is safe and reliable.
Description of drawings
Fig. 1 has the station stand-by power supply wiring construction schematic diagram of voltage regulation function for 1 one kinds of embodiment.
Fig. 2 has the station stand-by power supply wiring construction schematic diagram of voltage regulation function for 2 one kinds of embodiment.
Working power 1 is stood with Working transformer 2 working power lead-in circuit breaker 3, the using electricity system 380/220V bus 4 of standing, the automatic grading compensation device 5 of voltage, stand-by power supply lead-in circuit breaker 6, spare transformer 7, stand-by power supply 8.
Embodiment
Embodiment 1:A kind of station stand-by power supply wiring construction with voltage regulation function, it comprises working power 1, stand with Working transformer 2, stand-by power supply 8, spare transformer 7, working power lead-in circuit breaker 3, stand-by power supply lead-in circuit breaker 6 and station using electricity system 380/220V bus 4, working power 1 output is connected with the high voltage input terminal of station with Working transformer 2 through lead, the low-voltage output of using Working transformer 2 of standing is connected with station using electricity system 380/220V bus 4 through lead, docking station is provided with working power lead-in circuit breaker 3 with the lead of Working transformer 2 and station using electricity system 380/220V bus 4, stand-by power supply 8 outputs are connected through the high voltage input terminal of lead with spare transformer 7, it also includes the automatic grading compensation device 5 of voltage, the low-voltage output of spare transformer 7 is connected through the automatic grading compensation device 5 of lead and voltage, the automatic grading compensation device 5 of voltage is connected with station using electricity system 380/220V bus 4 through lead, and stand-by power supply lead-in circuit breaker 6 is arranged on the lead that connects spare transformer 7 and the automatic grading compensation device 5 of voltage.
Embodiment 2:A kind of station stand-by power supply wiring construction with voltage regulation function, it comprises working power 1, stand with Working transformer 2, stand-by power supply 8, spare transformer 7, working power lead-in circuit breaker 3, stand-by power supply lead-in circuit breaker 6 and station using electricity system 380/220V bus 4, working power 1 output is connected with the high voltage input terminal of station with Working transformer 2 through lead, the low-voltage output of using Working transformer 2 of standing is connected with station using electricity system 380/220V bus 4 through lead, docking station is provided with working power lead-in circuit breaker 3 with the lead of Working transformer 2 and station using electricity system 380/220V bus 4, stand-by power supply 8 outputs are connected through the high voltage input terminal of lead with spare transformer 7, it also includes the automatic grading compensation device 5 of voltage, the low-voltage output of spare transformer 7 is connected through the automatic grading compensation device 5 of lead and voltage, the automatic grading compensation device 5 of voltage is connected with station using electricity system 380/220V bus 4 through lead, and stand-by power supply lead-in circuit breaker 6 is arranged on the lead that connects automatic grading compensation device 5 of voltage and station using electricity system 380/220V bus 4.
Claims (1)
1. station stand-by power supply wiring construction with voltage regulation function, it comprises working power, stand and use Working transformer, stand-by power supply, spare transformer, the working power lead-in circuit breaker, stand-by power supply lead-in circuit breaker and station using electricity system 380/220V bus, described working power output is connected with the high voltage input terminal of described station with Working transformer through lead, described station is connected with described station using electricity system 380/220V bus through lead with the low-voltage output of Working transformer, connect described station and be provided with described working power lead-in circuit breaker with the lead of Working transformer and described station using electricity system 380/220V bus, described stand-by power supply output is connected with the high voltage input terminal of described spare transformer through lead, it is characterized in that, it also includes the automatic grading compensation device of voltage, the low-voltage output of described spare transformer is connected through the automatic grading compensation device of lead and described voltage, the automatic grading compensation device of described voltage is connected with described station using electricity system 380/220V bus through lead, described stand-by power supply lead-in circuit breaker is arranged on the lead that connects described spare transformer and the automatic grading compensation device of described voltage, or is arranged on the lead that connects automatic grading compensation device of described voltage and described station using electricity system 380/220V bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202060085U CN202068231U (en) | 2011-06-18 | 2011-06-18 | Standby power wiring structure with voltage regulating function used for station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202060085U CN202068231U (en) | 2011-06-18 | 2011-06-18 | Standby power wiring structure with voltage regulating function used for station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202068231U true CN202068231U (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202060085U Expired - Fee Related CN202068231U (en) | 2011-06-18 | 2011-06-18 | Standby power wiring structure with voltage regulating function used for station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202068231U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362588A (en) * | 2014-10-13 | 2015-02-18 | 大唐信阳发电有限责任公司 | Standby transformer branch zero-sequence overcurrent protection logic optimization method |
| CN110707710A (en) * | 2019-10-30 | 2020-01-17 | 西安邮电大学 | Dual-power-supply automatic voltage regulating system and method based on efficient filtering unit |
-
2011
- 2011-06-18 CN CN2011202060085U patent/CN202068231U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362588A (en) * | 2014-10-13 | 2015-02-18 | 大唐信阳发电有限责任公司 | Standby transformer branch zero-sequence overcurrent protection logic optimization method |
| CN104362588B (en) * | 2014-10-13 | 2018-03-09 | 大唐信阳发电有限责任公司 | Open standby change branch zero-sequencedirectional protection logic optimization method |
| CN110707710A (en) * | 2019-10-30 | 2020-01-17 | 西安邮电大学 | Dual-power-supply automatic voltage regulating system and method based on efficient filtering unit |
| CN110707710B (en) * | 2019-10-30 | 2022-05-31 | 西安邮电大学 | Dual-power-supply automatic voltage regulating system and method based on efficient filtering unit |
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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: INNER MONGOLIA ELECTRIC POWER SURVEY DESIGN INSTIT Free format text: FORMER NAME: INNER MONGOLIA ELECTRICAL POWER INVESTIGATE AND DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee after: INNER MONGOLIA ELECTRIC POWER SURVEY & DESIGN INSTITUTE CO., LTD. Address before: 010020 the Inner Mongolia Autonomous Region Hohhot City Xilin Road No. 209 Patentee before: Inner Mongolia Electric Power Survey Design Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20200618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |