CN203850843U - Reactive power compensation device used for automatic capacitor compensation system - Google Patents
Reactive power compensation device used for automatic capacitor compensation system Download PDFInfo
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- CN203850843U CN203850843U CN201420250085.4U CN201420250085U CN203850843U CN 203850843 U CN203850843 U CN 203850843U CN 201420250085 U CN201420250085 U CN 201420250085U CN 203850843 U CN203850843 U CN 203850843U
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- voltage
- load
- reactive power
- autotransformer
- capacitor
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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
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Abstract
The utility model discloses a reactive power compensation device used for an automatic capacitor compensation system, which comprises a high-voltage isolation switch, a grounding switch, an on-load voltage regulating autotransformer, a reactor, an arrester, a capacitor bank and a voltage transformer, wherein one end of the high-voltage isolation switch is electrically connected with a high-voltage bus, and one end is serially connected with the on-load voltage regulating autotransformer in the circuit; one end of the reactor is electrically connected with the on-load voltage regulating autotransformer, and one end is serially connected with a parallel capacitor branch formed by the arrester, the capacitor bank and the voltage transformer; and the grounding switch is serially connected with the parallel capacitor branch formed by the arrester, the capacitor bank and the voltage transformer. The reactive power compensation device used for an automatic capacitor compensation system has the beneficial effects that the voltage range is large, stages are various, the output voltage of the autotransformer can be adjusted, and reactive fine compensation can be realized.
Description
Technical field
The utility model relates to a kind of reactive power compensator for electric capacity self compensating system, belongs to transformer technology field.
Background technology
The rule that network system load variations is not fixed, common fixing and many group switching reactive compensators often occurred mending and owed to be mended, and compensates not meticulously, and utilization rate of equipment and installations is not high.When switching, have and shove more greatly and switching overvoltage, service life of equipment is shortened.When capacitor is out of service, there is certain residual charge, must discharge into a certain degree and could again drop into, otherwise can make capacitor aging or damage.In addition can not be meticulous to capacitor grouping, the meticulous meeting of dividing into groups causes optional equipment increase of investment, plant area excessive etc.Therefore no matter how capacitor is divided into groups all can not meet completely the requirement that System Reactive Power changes.
Utility model content
The deficiency existing for prior art, technical problem to be solved in the utility model is, a kind of reactive power compensator for electric capacity self compensating system is provided, range of regulation is larger, progression is more, by changing the terminal voltage of capacitor, that is change the output reactive capability of capacitor group, thereby realize idle meticulous compensation.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is, a kind of reactive power compensator for electric capacity self compensating system, it is characterized in that: comprise high voltage isolator, earthed switch, on-load voltage regulation autotransformer, reactor, lightning arrester, capacitor group and voltage transformer, described high voltage isolator one end electrical connection high voltage bus, one end connect with on-load voltage regulation autotransformer and circuit among; Described reactor one end is electrically connected with voltage adjustment of on-load autotransformer, and the shunt capacitance branch road of one end and lightning arrester, capacitor group and voltage transformer composition is connected in series; The shunt capacitance branch road of described earthed switch and lightning arrester, capacitor group and voltage transformer composition is connected in series.
Optimisation technique scheme of the present invention is, described on-load voltage regulation autotransformer comprises high input voltage terminal, on load tap changer and low-voltage output, and described high input voltage terminal is electrically connected by load tap changer and low-voltage output.
Optimisation technique scheme of the present invention is, described high input voltage terminal, on load tap changer, low-voltage output are three groups altogether, and wherein the progression of on load tap changer is 9-11 level.
The beneficial effects of the utility model are that the utility model is according to S=2 π fCU
2principle, utilize on load tap changer to regulate the output voltage of autotransformer, to change the terminal voltage of capacitor, that is change the output reactive capability of capacitor group, thereby realize idle meticulous compensation.The parameter that reactive power compensator can be set in advance, from motion tracking operation of power networks state, need to regulate idle output according to electrical network, and power factor can be stabilized in setting range.The rated voltage that the utility model uses is 6-35kV, and on-load voltage regulation tap progression is 9-11 level, and voltage-regulation scope is between 40%-100%, and the idle output capacity adjustable range of capacitor group is between 16%-100%.
Brief description of the drawings
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
Fig. 1 is the structural representation of the reactive power compensator for electric capacity self compensating system of the present utility model;
Fig. 2 is the inside key wiring diagram that has year variac of the reactive power compensator for electric capacity self compensating system of the utility model embodiment.
Embodiment
As shown in Figure 1, 2, a kind of reactive power compensator for electric capacity self compensating system, comprise high voltage isolator 1, earthed switch 2, on-load voltage regulation autotransformer 3, reactor 4, lightning arrester 5, capacitor group 6 and voltage transformer 7, described high voltage isolator 1 one end electrical connection high voltage bus, one end connect with on-load voltage regulation autotransformer 3 and circuit among; Described reactor 4 one end are electrically connected with voltage adjustment of on-load autotransformer 3, and the shunt capacitance branch road that one end and lightning arrester 5, capacitor group 6 and voltage transformer 7 form is connected in series; Described earthed switch 2 is connected in series with the shunt capacitance branch road that lightning arrester 5, capacitor group 6 and voltage transformer 7 form.Described on-load voltage regulation autotransformer 3 comprises high input voltage terminal 31, on load tap changer 32 and low-voltage output 33, and described high input voltage terminal 31 is electrically connected with low-voltage output 33 by load tap changer 32.Described high input voltage terminal 31, on load tap changer 32, low-voltage output 33 are three groups altogether, and wherein the progression of on load tap changer 32 is 9-11 level.
The utility model technology is mainly applicable to the transformer station of 6-220kV electric pressure, is contained on 6Kv/10kV/35kV bus.Phase feature is, range of regulation of the present utility model is larger, and progression is more, and output voltage adjustable range is between 40%-100%; According to principle S=2 π fCU
2known, the capacity of on-load voltage regulation autotransformer is to change along with the variation of output voltage, and capacity is to change with square level of output voltage.If the rated voltage of transformer is U, tapping voltage is U
i, rated capacity is S, tapping power is S
i=(U
i/ U)
2× S; The automatic controller of on-load voltage regulating switch of the present utility model receives the on the low side or higher control signal of power factor in free power factor controller (in control cubicle) in addition, and be sent on load tap changer automatic controller, send out control signal by controller to loaded switch motor drive mechanism, switch is boosted or reduced pressure operation, change the output voltage of low-voltage output a, b, c, and then the voltage at change capacitor group two ends, according to S=2 π fCU
2principle changes electric capacity idle exporting change, plays inactive power compensation, and then within guarantee power factor is controlled at the scope of requirement; The impedance voltage of the autotransformer of on-load voltage regulation is simultaneously very little, generally below 1.5%.
The above the utility model some principle for the reactive power compensator of electric capacity self compensating system that just explain through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (3)
1. the reactive power compensator for electric capacity self compensating system, it is characterized in that: comprise high voltage isolator, earthed switch, on-load voltage regulation autotransformer, reactor, lightning arrester, capacitor group and voltage transformer, described high voltage isolator one end electrical connection high voltage bus, one end connect with on-load voltage regulation autotransformer and circuit among; Described reactor one end is electrically connected with voltage adjustment of on-load autotransformer, and the shunt capacitance branch road of one end and lightning arrester, capacitor group and voltage transformer composition is connected in series; Described earthed switch and lightning arrester, the shunt capacitance branch road of capacitor group and voltage transformer composition is connected in series.
2. the reactive power compensator for electric capacity self compensating system according to claim 1, it is characterized in that: described on-load voltage regulation autotransformer comprises high input voltage terminal, on load tap changer and low-voltage output, described high input voltage terminal is electrically connected with low-voltage output by load tap changer.
3. the reactive power compensator for electric capacity self compensating system according to claim 2, is characterized in that: described high input voltage terminal, on load tap changer, low-voltage output are three groups altogether, and wherein the progression of on load tap changer is 9-11 level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250085.4U CN203850843U (en) | 2014-05-16 | 2014-05-16 | Reactive power compensation device used for automatic capacitor compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250085.4U CN203850843U (en) | 2014-05-16 | 2014-05-16 | Reactive power compensation device used for automatic capacitor compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850843U true CN203850843U (en) | 2014-09-24 |
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ID=51563815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420250085.4U Expired - Fee Related CN203850843U (en) | 2014-05-16 | 2014-05-16 | Reactive power compensation device used for automatic capacitor compensation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006829A (en) * | 2015-07-05 | 2015-10-28 | 中能世华(北京)节能科技有限公司 | Motor dynamic capacitance compensation device |
-
2014
- 2014-05-16 CN CN201420250085.4U patent/CN203850843U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006829A (en) * | 2015-07-05 | 2015-10-28 | 中能世华(北京)节能科技有限公司 | Motor dynamic capacitance compensation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20210516 |