CN101488667A - Power supply method for large sponge titanium smelting total transforming plant - Google Patents
Power supply method for large sponge titanium smelting total transforming plant Download PDFInfo
- Publication number
- CN101488667A CN101488667A CNA2008103001424A CN200810300142A CN101488667A CN 101488667 A CN101488667 A CN 101488667A CN A2008103001424 A CNA2008103001424 A CN A2008103001424A CN 200810300142 A CN200810300142 A CN 200810300142A CN 101488667 A CN101488667 A CN 101488667A
- Authority
- CN
- China
- Prior art keywords
- down transformer
- total step
- total
- single busbar
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a power supply method of a large scale sponge titanium smelting main sub-station, and the method is used for supplying power for the large scale sponge titanium smelting main sub-station. The method is characterized by adopting two or more than two main reducing transformators, wherein, 50-75% of the main reducing transformators are common main reducing transformators, and 25-50% of the main reducing transformators are standby main reducing transformators; the input ends of the main reducing transformators adopt duplicate busbar access, the output ends of the common main reducing transformators are respectively connected with different single busbars; the standby main reducing transformators are connected between any two single busbars by a wire inlet and switching device; and a busbar communicating device is arranged among the single busbars. The invention adopts a two-circuit power supply to realize independent power supply respectively for two different loads, so as to reduce the influence of power loads with different properties on other electric equipment, and ensure the other power supply to have first class or second class power load when any power supply is maintained and repaired or in power failure caused by accidents.
Description
Technical field
The present invention relates to a kind of method of supplying power to and device of large sponge titanium smelting total transforming plant, belong to the high voltage power distribution technical field.
Background technology
In the large sponge titanium smelting industrial production, power load is very large, its electricity consumption mainly comprises two major parts, some is a titanium ac power power load, another is magnesium eletrolysis rectification dc load partly, wherein titanium ac power power load reaches 58000KW, and the magnesium eletrolysis power load reaches 42000KW, and total power load will reach more than the 100000KW.From load nature of electricity consumed, the titanium power load is the ac power load, is one-level, secondary power load more than 95%, and power factor (PF) is higher, does not generally need compensation.And 92% be direct current rectification load in the magnesium eletrolysis power load, 5% is arc furnace load and a small amount of ac power load, is the harmonic source of maximum in the power supply system.Harmonic source can exert an influence to the power supply quality and the reliability of all electric equipments in the electric power system, reduces as heating, vibration, noise, malfunction and tripping, short circuit and fire hazard, insulation life etc.Because the power load of above two kinds of different load character, a kind of very high to the power supply quality requirement, the load that another kind has harmonic source can have a negative impact to electric power system again, and the power load capacity of two kinds of different load character is all bigger.Therefore, Main Wire Connection Scheme to the total step-down substation power supply-distribution system of large sponge titanium smelting industry has proposed new higher requirement, in order to satisfy the demand that sponge titanium smelting industry is constantly maximized and produced, total step-down substation power supply-distribution system must be realized new skill upgrading and innovation.
Summary of the invention
The object of the present invention is to provide a kind of method of supplying power to of large sponge titanium smelting total transforming plant, adopt double-cricuit supply respectively two kinds of different loads to be realized power supply separately, be convenient to concentrate harmonic wave control and farthest reduce the influence of harmonic wave to other power consumption equipment, and guarantee to overhaul or during because of accident interruption, another power supply should guarantee one-level, two stage load electricity consumptions when arbitrary power-source maintenance.
The present invention is achieved in that the method for supplying power to of a kind of large sponge titanium smelting total transforming plant of the present invention adopts the total step-down transformer more than two or two, wherein total step-down transformer of 50～75% is total step-down transformer commonly used, total step-down transformer of 25～50% is standby total step-down transformer, the input of each total step-down transformer adopts double-bus to insert, and the output of total step-down transformer commonly used connects with different single busbar connection respectively; Standby total step-down transformer is connected arbitrarily between two sections single busbar connections through inlet wire and switching device shifter; Between single busbar connection, be provided with the bus communication means.
In the method for supplying power to of above-mentioned large sponge titanium smelting total transforming plant, set up one or more than one inlet wires respectively separately on described each single busbar connection.
In the method for supplying power to of aforesaid large sponge titanium smelting total transforming plant, described standby total step-down transformer does not move at ordinary times, when any total step-down transformer in total step-down transformer commonly used breaks down, put into operation by inlet wire and switching device shifter and bus communication means with making standby total step-down transformer fast and flexible.
In the method for supplying power to of aforesaid large sponge titanium smelting total transforming plant, circuit breaker and bus contact between inlet wire between described total step-down transformer and the single busbar connection and switching device shifter, single busbar connection and the single busbar connection, switching mode by these circuit breakers and bus contact various combination can realize that a single busbar connection is powered separately or the single busbar connection more than two is powered to power load of different nature.
Compared with prior art, in the method for supplying power to of large sponge titanium smelting total transforming plant provided by the present invention, because the input at total step-down transformer has adopted the double-bus access, when one the tunnel has a power failure, can switch to rapidly on another current supply circuit by switching device shifter, therefore can guarantee the electricity consumption requirement of I and II load; Owing to adopt the sectionalized single busbar connection power-feed section, can insert different single busbar connections according to different load nature of electricity consumed respectively, effectively with power load of different nature separately, reduced influence each other, power supply quality and reliability are improved.Because each section uses independently total step-down transformer, thus can realize the equipment disposition miniaturization, good energy-conserving effect, long service life, equipment investment and operating cost reduce.Because various, the good operation performance of power supply switching mode, adaptive capacity is strong.The present invention can also increase the quantity of total step-down transformer and power supply single busbar connection, so also have very strong compatibilization.
Description of drawings
Accompanying drawing 1 is an electrical schematic diagram of the present invention;
Embodiment
Embodiments of the invention: the electrical principle of the method for supplying power to of large sponge titanium smelting total transforming plant of the present invention as shown in Figure 1.Use four total step-down transformer power supplies to be example with large sponge titanium smelting total transforming plant below, concrete implementation method is described.Because large sponge titanium smelting requires very high to power supply quality, power failure can cause enormous economic loss, may cause loss of life or personal injury in addition, therefore adopt double loop 110KV double-bus access way, use four models to be XXMVA 110 ± 8 * 1.25%/10.5kV YN, total step-down transformer of d11, three are total step-down transformer commonly used, one is standby total step-down transformer, the input of total step-down transformer adopts the 110KV double-bus to insert, and the output of total step-down transformer adopts three sections single busbar connection outputs of 10KV; The output of No. 1 total step-down transformer connects the 1st section single busbar connection, the output of No. 2 total step-down transformers connects the 1st section and the 2nd section single busbar connection respectively through inlet wire and switching device shifter, the output of No. 4 total step-down transformers connects the 2nd section and the 3rd section single busbar connection, No. 3 total step-down transformers are standby total step-down transformer, and No. 3 total step-down transformer connects the 2nd section and the 3rd section single busbar connection respectively through inlet wire and switching device shifter; Between the 1st section and the 2nd section single busbar connection, and be provided with the bus communication means between the 2nd section and the 3rd section single busbar connection.Setting up many loops respectively separately on the 1st section and the 2nd section single busbar connection, balancedly is the power supply of titanium technical load; Set up many loops separately on described the 3rd section single busbar connection, be magnesium eletrolysis rectification dc load and arc furnace and the power supply of a small amount of AC load, all Rectification Power Factor and arc furnace load all is connected on the 3rd section bus.Rectification Power Factor by quadruplet or more than the quadruplet rectification unit of 12 pulse waves constitute equivalent Rectification Power Factor more than 48 pulse waves, to suppress harmonic wave effectively, make each harmonic satisfy the required standard that country allows.No. 3 total step-down transformer does not move at ordinary times, when any total step-down transformer in No. 1, No. 2 or No. 4 total step-down transformers breaks down, by inlet wire and switching device shifter and bus communication means No. 3 total step-down transformers is put into operation in time.Inlet wire and switching device shifter and bus communication means can satisfy the dual power supply of two kinds of different loads through the switching mode of various combination, guarantee the electricity consumption requirement of one-level, two stage loads.
The technology of the present invention scope of application is wider, except that the application of the industrial total step-down substation of large sponge titanium smelting, can also be in power load important and capacity is big, the line loop number is more, power load character kind difference, by increasing the quantity of total step-down transformer and power supply single busbar connection, can also carry out increase-volume very easily, its power load also has very big increase-volume space.
Claims (4)
- The method of supplying power to of [claim 1] a kind of large sponge titanium smelting total transforming plant, it is characterized in that: this method adopts the total step-down transformer more than two, wherein total step-down transformer of 50～75% is total step-down transformer commonly used, total step-down transformer of 25～50% is standby total step-down transformer, the input of each total step-down transformer adopts double-bus to insert, and the output of total step-down transformer commonly used connects with different single busbar connection respectively; Standby total step-down transformer is connected arbitrarily between two sections single busbar connections through inlet wire and switching device shifter; Between single busbar connection, be provided with the bus communication means.
- The method of supplying power to of [claim 2] large sponge titanium smelting total transforming plant according to claim 1 is characterized in that: set up one or more than one inlet wires respectively separately on described each single busbar connection.
- The method of supplying power to of [claim 3] large sponge titanium smelting total transforming plant according to claim 1, it is characterized in that: described standby total step-down transformer does not move at ordinary times, when any total step-down transformer in total step-down transformer commonly used breaks down, put into operation by inlet wire and switching device shifter and bus communication means with making standby total step-down transformer fast and flexible.
- The method of supplying power to of [claim 4] large sponge titanium smelting total transforming plant according to claim 1, it is characterized in that: inlet wire between described total step-down transformer and the single busbar connection and the circuit breaker between switching device shifter, single busbar connection and the single busbar connection and bus contact, switching mode by these circuit breakers and bus contact various combination can realize that a single busbar connection is powered separately or the single busbar connection more than two is powered to power load of different nature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103001424A CN101488667A (en) | 2008-01-18 | 2008-01-18 | Power supply method for large sponge titanium smelting total transforming plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103001424A CN101488667A (en) | 2008-01-18 | 2008-01-18 | Power supply method for large sponge titanium smelting total transforming plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101488667A true CN101488667A (en) | 2009-07-22 |
Family
ID=40891401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008103001424A Pending CN101488667A (en) | 2008-01-18 | 2008-01-18 | Power supply method for large sponge titanium smelting total transforming plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101488667A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108527A (en) * | 2009-12-23 | 2011-06-29 | 贵阳铝镁设计研究院 | Method and system for supplying power to large aluminum electrolytic plant |
| CN102832692A (en) * | 2011-06-17 | 2012-12-19 | 哈米尔顿森德斯特兰德公司 | Intelligent electrical power distribution system |
| CN103668422A (en) * | 2012-08-30 | 2014-03-26 | 山西太钢不锈钢股份有限公司 | Method for reducing calorification of electrolytic tank |
| CN106786545A (en) * | 2017-01-11 | 2017-05-31 | 中国核电工程有限公司 | A kind of public bus bar wiring structure |
| CN107591883A (en) * | 2017-09-26 | 2018-01-16 | 国网冀北电力有限公司承德供电公司 | A kind of reliability electric power system |
-
2008
- 2008-01-18 CN CNA2008103001424A patent/CN101488667A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 刑建旭: "湖州电网110kV二线三变主接线方案的研讨", 《湖州师范学院学报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108527A (en) * | 2009-12-23 | 2011-06-29 | 贵阳铝镁设计研究院 | Method and system for supplying power to large aluminum electrolytic plant |
| CN102108527B (en) * | 2009-12-23 | 2014-03-26 | 贵阳铝镁设计研究院有限公司 | Method and system for supplying power to large aluminum electrolytic plant |
| CN102832692A (en) * | 2011-06-17 | 2012-12-19 | 哈米尔顿森德斯特兰德公司 | Intelligent electrical power distribution system |
| CN102832692B (en) * | 2011-06-17 | 2015-12-09 | 哈米尔顿森德斯特兰德公司 | Intelligent electrical power distribution system |
| CN103668422A (en) * | 2012-08-30 | 2014-03-26 | 山西太钢不锈钢股份有限公司 | Method for reducing calorification of electrolytic tank |
| CN106786545A (en) * | 2017-01-11 | 2017-05-31 | 中国核电工程有限公司 | A kind of public bus bar wiring structure |
| CN107591883A (en) * | 2017-09-26 | 2018-01-16 | 国网冀北电力有限公司承德供电公司 | A kind of reliability electric power system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103311924B (en) | Single-phase combined co-phased power supply and transformation structure | |
| CN102340138B (en) | Power supply and distribution system for building | |
| CN109888865B (en) | Ship electric power system | |
| CN116191501B (en) | High-voltage station power system of compressed air energy storage power station and arrangement mode thereof | |
| CN101488667A (en) | Power supply method for large sponge titanium smelting total transforming plant | |
| CN212796591U (en) | Rail transit power supply system | |
| CN107579593B (en) | Energy supply system of high-voltage direct-current circuit breaker | |
| CN101262135B (en) | Parallel non-interrupted power supply system | |
| CN202906202U (en) | Distribution vehicle for ensuring power supply | |
| CN210806740U (en) | Three-way low-voltage power supply device and power supply system | |
| CN112865126B (en) | Shared sampling current circuit of reactive power compensation device of low-voltage single-bus segmented system | |
| CN213585170U (en) | Station power consumption screen and distributed station power consumption system based on energy storage station | |
| CN204886390U (en) | High pressure dual power supply's wiring circuit | |
| CN212486196U (en) | Power supply system is synthesized to inside of large-scale coal-electricity integration power station | |
| CN201061090Y (en) | DC distributing equipment and communication cabinet | |
| CN204696788U (en) | A kind of large-size thermal power plant high-voltage Auxiliary power supply three power supply automatic switchover wiring construction | |
| CN210007409U (en) | box-type substation and microgrid connection structure | |
| CN111342549A (en) | Power supply system is synthesized to inside of large-scale coal-electricity integration power station | |
| CN201336508Y (en) | Secondary distribution circuit for industrial and mining workshops | |
| CN201298734Y (en) | Main electrical wiring for starting fuel gas and steam combined cycle generator set in two-drive-one mode with variable frequency | |
| CN202218165U (en) | Parallel connection type electric power transformer with energy feedback function | |
| CN2627698Y (en) | Double-distribution electrical power control unit | |
| CN111181244A (en) | Service power interconnection system among multiple thermal power generating units and operation control method | |
| CN202422976U (en) | String-variable voltage-regulating triple cut-off transformer for electric furnace | |
| CN219420366U (en) | Primary load power supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INSTITUTE C Free format text: FORMER OWNER: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. Effective date: 20110525 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 550004 NO. 208, BEIJING ROAD, GUIYANG CITY, GUIZHOU PROVINCE TO: 550081 NO.2, JINZHU ROAD, JINYANG NEW DISTRICT, GUIYANG CITY, GUIZHOU PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110525 Address after: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Applicant after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550004 No. 208, Beijing Road, Guiyang, Guizhou Applicant before: Guiyang Aluminium and Magnesium Design Inst. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20090722 |