CN201388062Y - Special dynamic reactive power compensation device for electrified railway - Google Patents
Special dynamic reactive power compensation device for electrified railway Download PDFInfo
- Publication number
- CN201388062Y CN201388062Y CN200920151715U CN200920151715U CN201388062Y CN 201388062 Y CN201388062 Y CN 201388062Y CN 200920151715 U CN200920151715 U CN 200920151715U CN 200920151715 U CN200920151715 U CN 200920151715U CN 201388062 Y CN201388062 Y CN 201388062Y
- Authority
- CN
- China
- Prior art keywords
- voltage regulator
- coil
- series
- moving contact
- fixed contact
- 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.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000003137 locomotive Effects 0.000 abstract description 4
- 230000003247 decreasing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004804 winding Methods 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model provides a special dynamic reactive power compensation device for an electrified railway. A wire inlet end of a circuit breaker is connected on a power supply arm, a wire outlet end of the circuit breaker is electrically connected with a wire inlet end of a compressor governor coil, and a moving contact can be electrically connected with an arbitrary fixed contact of the compressor governor coil; the moving contact, a capacitor bank and a series reactor are electrically connected in sequence; the series reactor is further connected with a wire outlet end of the compressor governor coil; and a high-impedance capacitor is connected in series between a lowest pigtail of the compressor governor coil and the fixed contact. The utility model has the advantages that as the high-impedance capacitor is added in the compressor governor and connected in series in the lowest pigtail, when no electric locomotive passes through the power supply arm, a tap switch moving contact is adjusted to the lowest, the wattless output capacity is in reciprocal proportion to the capacity reactance in the loop under the condition of unchanged lowest voltage U, and at this time the high-impedance capacitor is connected in series in the loop, so that the wattless output capacity approaches to zero, and overcompensation does not occur.
Description
Technical field
The utility model relates to a kind of power system reactive power compensation device, the special-purpose dynamic reactive compensation device of particularly a kind of electric railway.
Background technology
At present domestic electric railway traction transformer station and the electric railway line of building, the reactive power compensation mode of common employing is a fixed compensation, the fixed compensation mode is to control the fixed capacitor group by a circuit breaker, and after the close circuit breaker, the capacitor group is in running status all the time.So, when the traction substation supply arm does not have locomotive (Light Condition), capacitor but still continues to send to system idle, this moment is because the traction substation main transformer is in Light Condition, busbar voltage also increases, exert oneself and square being directly proportional of the voltage of its actual motion because capacitor is idle, capacitor is idle exerts oneself bigger than normally, and idle situation about sending is also more serious thereupon; When on the traction substation supply arm locomotive operation being arranged (load condition), to reduce busbar voltage at this moment, capacitor is exerted oneself and is also decreased, and the situation of owing to mend appears again in traction substation like this.In sum, country implements after the policy of " counter just sending counted ", the fixed compensation mode not only can not improve the power factor of traction substation, make it on the contrary to reduce significantly, so the capacitor fixed compensation can't use on railway, china railway begins to carry out successively the reactive power compensation improvement project.
The utility model content
Technical problem to be solved in the utility model is that low, the no harmonic wave of a kind of loss, the better special-purpose dynamic reactive compensation device of electric railway of compensation effect are provided at above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the special-purpose dynamic reactive compensation device of a kind of electric railway comprises supply arm, circuit breaker, voltage regulator iron core, voltage regulator coil; The end of incoming cables of described circuit breaker is connected on the described supply arm, and leading-out terminal is electrically connected with the end of incoming cables of voltage regulator coil; Described voltage regulator coil winding is on the voltage regulator iron core, and the voltage regulator coil has a plurality of taps, and each tap is connected with fixed contact respectively; Also comprise moving contact, capacitor group, series reactor, described moving contact can move automatically and can be electrically connected with any one fixed contact; Described moving contact and capacitor group) end of incoming cables is connected, described capacitor group leading-out terminal is connected with the series reactor end of incoming cables, described series reactor leading-out terminal is connected with the leading-out terminal of voltage regulator coil, it is characterized in that: the deep low gear tap serial connection high impedance electric capacity of described voltage regulator coil is connected with fixed contact again.
Compared with prior art, advantage of the present utility model is, because the utility model increases a high impedance electric capacity in its voltage regulator, be serially connected in the tap of deep low gear, when supply arm does not have electric locomotive through out-of-date (Light Condition), the shunting switch moving contact will be adjusted to deep low gear, under the constant situation of deep low gear voltage U, the capacitive reactance in idle output capacity and the loop is inversely proportional to, and string has high impedance electric capacity in the loop of this moment, so idle output capacity approaches zero, can not cause overcompensation.
Description of drawings
Fig. 1 is an electrical block diagram of the present utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, the special-purpose dynamic reactive compensation device of a kind of electric railway comprises supply arm 1, circuit breaker 2, voltage regulator iron core 3, voltage regulator coil 4; The end of incoming cables of described circuit breaker 2 is connected on the described supply arm 1, and leading-out terminal is electrically connected with the end of incoming cables of voltage regulator coil 4; Described voltage regulator coil 4 is wound on the voltage regulator iron core 3, and voltage regulator coil 4 has a plurality of taps, and each tap is connected with fixed contact respectively, and its deep low gear tap connects fixed contact 6 after connecting high impedance electric capacity (5) again; Also comprise moving contact 7, capacitor group 8, series reactor 9, described moving contact 7 can move automatically and can be electrically connected with any one fixed contact; Described moving contact 7 is connected with capacitor group 8 ends of incoming cables, and described capacitor group 8 leading-out terminals are connected with series reactor 9 ends of incoming cables, and described series reactor 9 leading-out terminals are connected with the leading-out terminal of voltage regulator coil 4.
Present embodiment is made as seven taps with a plurality of taps of voltage regulator coil 4, six taps wherein directly connect six fixed contacts, the deep low gear tap connects an end of high impedance electric capacity 5, the 7th fixed contact 6 in another termination fixed contact of high impedance electric capacity 5, moving contact 7 can move automatically with any one fixed contact and be connected, moving contact 7 is connected with capacitor group 8 ends of incoming cables, capacitor group 8 leading-out terminals are connected with series reactor 9 ends of incoming cables, and series reactor 9 leading-out terminals are connected with the leading-out terminal of voltage regulator coil 4.
Claims (1)
1, the special-purpose dynamic reactive compensation device of a kind of electric railway comprises supply arm (1), circuit breaker (2), voltage regulator iron core (3), voltage regulator coil (4); The end of incoming cables of described circuit breaker (2) is connected on the described supply arm (1), and leading-out terminal is electrically connected with the end of incoming cables of voltage regulator coil (4); Described voltage regulator coil (4) is wound on the voltage regulator iron core (3), and voltage regulator coil (4) has a plurality of taps, and each tap is connected with fixed contact respectively, and what its deep low gear tap connected is fixed contact (6); Also comprise moving contact (7), capacitor group (8), series reactor (9), described moving contact (7) can move automatically and can be electrically connected with any one fixed contact; Described moving contact (7) is connected with capacitor group (8) end of incoming cables, described capacitor group (8) leading-out terminal is connected with series reactor (9) end of incoming cables, described series reactor (9) leading-out terminal is connected with the leading-out terminal of voltage regulator coil (4), it is characterized in that: be connected in series high impedance electric capacity (5) between the deep low gear tap of described voltage regulator coil (4) and fixed contact (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920151715U CN201388062Y (en) | 2009-04-21 | 2009-04-21 | Special dynamic reactive power compensation device for electrified railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920151715U CN201388062Y (en) | 2009-04-21 | 2009-04-21 | Special dynamic reactive power compensation device for electrified railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201388062Y true CN201388062Y (en) | 2010-01-20 |
Family
ID=41580606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920151715U Expired - Fee Related CN201388062Y (en) | 2009-04-21 | 2009-04-21 | Special dynamic reactive power compensation device for electrified railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201388062Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012126271A1 (en) * | 2011-03-21 | 2012-09-27 | 山西广福工程技术有限公司 | Electrified railway traction substation reactive power compensation apparatus |
-
2009
- 2009-04-21 CN CN200920151715U patent/CN201388062Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012126271A1 (en) * | 2011-03-21 | 2012-09-27 | 山西广福工程技术有限公司 | Electrified railway traction substation reactive power compensation apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20130421 |