CN202167856U - Automatic high-voltage dynamic reactive compensation cabinet - Google Patents
Automatic high-voltage dynamic reactive compensation cabinet Download PDFInfo
- Publication number
- CN202167856U CN202167856U CN2011202716709U CN201120271670U CN202167856U CN 202167856 U CN202167856 U CN 202167856U CN 2011202716709 U CN2011202716709 U CN 2011202716709U CN 201120271670 U CN201120271670 U CN 201120271670U CN 202167856 U CN202167856 U CN 202167856U
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- China
- Prior art keywords
- controller
- fling
- cabinet
- reactive power
- cut switch
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- Expired - Fee Related
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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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- 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
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
An automatic high-voltage dynamic reactive compensation cabinet relates to the technical field of electric system reactive compensation and comprises a control cabinet and a compensation cabinet. The control cabinet comprises a controller, and the compensation cabinet comprises a fling-cut switch, a compensating capacitor group, a fuse and a breaker. An external three-phase power grid is connected with the controller which is connected with the fling-cut switch, the fling-cut switch is connected with the compensating capacitor group, the breaker is arranged between the external three-phase power gird and the controller, and the fuse is arranged between the breaker and the controller. The automatic high-voltage dynamic reactive compensation cabinet is characterized in that a current transformer and a voltage transformer are additionally arranged between the external three-phase power gird and the controller, and the compensating capacitor group is further in series connection with a reactor. The automatic high-voltage dynamic reactive compensation cabinet has the advantages of being rapid in fling-cut speed and free of noise, inrush current and overvoltage, well improving power grid quality, guaranteeing load security and greatly improving power gird quality.
Description
Technical field
The utility model relates to power system reactive power power back-off equipment technical field, especially relates to the dynamic auto reactive power compensation cabinet of a kind of high pressure.
Background technology
Loadtype major part in the electric power system belongs to inductive load, adds generally electrification electronic equipment widely of electricity consumption enterprise, makes power factor of electric network lower.Lower power factor has reduced utilization rate of equipment and installations, has increased the power supply investment, has damaged quality of voltage, has reduced service life of equipment, has increased line loss greatly.In order to improve the energy waste and these unfavorable power supply factors of production that power factor of electric network lowly brings, power factor of electric network is effectively improved.If obvious these reactive powers all will be provided and transmitted at a distance by generator is irrational, also is impossible usually.Reasonable approach is exactly to produce reactive power in the place that needs reactive power, promptly increases reactive power compensating apparatus and device.
Yet because the application of modem semi-conductor devices is more and more general, power is also bigger, but its negative effect is exactly to produce very big non-sinusoidal current, and the harmonic voltage of electrical network is raise, and aberration rate increases, and grid supply quality degenerates.If bigger harmonic voltage is arranged in the supply line, especially more than 5 times, these harmonic waves will be amplified by compensation arrangement.Capacitor group and circuit series resonance increase voltage, current distortion rate on the circuit, very likely cause device damage, and compensation arrangement can not use in this case.
In view of the above problems, the utility model provides the dynamic auto reactive power compensation cabinet of a kind of high pressure, can effectively eliminate the harmonic wave in the electrical network, make that compensation arrangement can steady operation, well improve power grid quality, guarantee payload security.
The utility model content
The utility model technical problem to be solved is, provides a kind of high pressure dynamic auto reactive power compensation cabinet, and this reactive power compensation cabinet adopts thyristor as fling-cut switch, can realize the dynamic tracking compensation.
The utility model technical problem to be solved adopts following technical scheme to realize:
The dynamic auto reactive power compensation cabinet of a kind of high pressure comprises a control cubicle and a compensating cabinet, and said control cubicle comprises controller; Said compensating cabinet comprises fling-cut switch, compensation condenser group, fuse and circuit breaker.Extraneous three phase network and said controller join; Said controller links to each other with said fling-cut switch; Said fling-cut switch links to each other with said compensation condenser group, and said circuit breaker is arranged between extraneous three phase network and the said controller, and said fuse is arranged between said circuit breaker and the said controller; Said compensation condenser group is joined with extraneous three phase network and is formed the reactive power compensation loop; It is characterized in that: between extraneous three phase network and said controller, also have additional current transformer and voltage transformer, be used for the electric current and the magnitude of voltage of Real-time and Dynamic sampling electrical network, and guarantee said controller secure; Said compensation condenser group also is serially connected with reactor, is used to reduce harmonic wave harm, and said control cubicle also is provided with standby power supply device.
Between said controller and said fling-cut switch, also be provided with the circuits for triggering plate, be used to realize that the pulse triggering signal that said controller is sent is more accurate.
Said fling-cut switch is bidirectional thyristor or individual event anti-parallel thyristor, and said thyristor can be accomplished the switching action to all said compensation condenser groups at 10ms-20ms in the time period under the triggering signal control that said controller sends.
The quantity of said current transformer is three, to satisfy the current sample needs that three-phase is mended altogether.
On said fuse, also be provided with alarm.
The beneficial effect of the utility model is: switching speed is fast, and noiselessness, no-flashy-flow, no overvoltage can effectively be eliminated the harmonic wave in the electrical network; Make that compensation arrangement can steady operation; Well improve power grid quality, guarantee payload security, improved power grid quality greatly.
Description of drawings
Fig. 1 is the utility model: the operation principle block diagram of the dynamic auto reactive power compensation cabinet of a kind of high pressure;
Fig. 2 is the utility model: the structural representation of the control cubicle of the dynamic auto reactive power compensation cabinet of a kind of high pressure;
Fig. 3 is the utility model: the structural representation of the compensating cabinet of the dynamic auto reactive power compensation cabinet of a kind of high pressure.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
With reference to Fig. 1-shown in Figure 3, the dynamic auto reactive power compensation cabinet of a kind of high pressure comprises a control cubicle 1 and a compensating cabinet 2, and parts installing rack 3 removably is installed in compensating cabinet 2, and installing rack 3 is divided into four layers from top to bottom at least.Bottom at installing rack 3 is equipped with compensation condenser group 4, and compensation condenser group 4 forms by a plurality of capacitors are parallel with one another.Radiator 41 is installed above compensation condenser group 4, on radiator 41, removably is fixed with a plurality of thyristors 5 and circuits for triggering version 6.Wherein, thyristor 5 is bidirectional thyristor or individual event anti-parallel thyristor, the anti-and thyristor of the preferred individual event of this enforcement row.Thyristor 5 is corresponding being connected of capacitor in fling-cut switch and the compensation condenser group 4 of capacitor group 4 by way of compensation.Reactor 7 is installed above radiator 41, and reactor 7 is connected in series through circuit and compensation condenser group 4, to eliminate the adverse effect of mains by harmonics.Fuse 8 also is installed above reactor 7; On fuse 8, also be removably fixed with alarm 9; Fuse 8 also is connected in series with compensation condenser group 4 through circuit, and fuse 8 and alarm 9 can be implemented safer protection to each the reactive power compensation loop in the compensation condenser group 4.One circuit breaker 10 also is installed above fuse 8; Three current transformers 101 and a voltage transformer 102 also are installed on circuit breaker 10; Current transformer 101 detects sampling with voltage transformer 102 in order to electric current and magnitude of voltage in the real-time electrical network to external world; And through controller 20 excessive current and voltage are changed, to guarantee the safety of follow-up equipment.
Standby power supply device 21 is installed in control cubicle 1; Standby power supply device 21 provides stand-by power supply for the electrical equipment in the control cubicle 1; Front door also is installed on control cubicle 1; Go up door-plate 13 and preceding door-plate 15 down before front door is divided into, three ammeters 16, a voltmeter 17 and a power-factor indicator 18 are installed on the door-plate 13 on preceding, and door lock 19; Wherein, three ammeters 16 link to each other with a voltage transformer 102 with three corresponding current transformers 101 respectively through data circuit with a voltmeter 17.On preceding door-plate 15 down, controller 20 and door lock 19 are installed; The end of incoming cables of controller 20 is connected with voltage transformer 102 with current transformer 101, and the leading-out terminal of controller 20 links to each other with thyristor 5 with circuits for triggering plate 6, in order to implement to sample rate current and voltage analysis computing, power factor (PF) parameter setting, measure, send triggering switching signal; Precisely drop into and excise action to control each thyristor; Make system can not produce overvoltage and shove, and the voltage of control compensation capacitor group 4 does not need the capacitor discharge to drop into once more when equating with system voltage when dropping into capacitor; Capacitor can frequently be used, improve system's electricity quality.
The utility model adopts thyristor as fling-cut switch, and switching speed is fast, noiselessness, no-flashy-flow, no overvoltage; Can effectively eliminate the harmonic wave in the electrical network, make that compensation arrangement can steady operation, well improve power grid quality; Guarantee payload security, improved power grid quality greatly.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (5)
1. the dynamic auto reactive power compensation cabinet of high pressure comprises a control cubicle and a compensating cabinet, and said control cubicle comprises controller; Said compensating cabinet comprises fling-cut switch, compensation condenser group, fuse and circuit breaker; Extraneous three phase network and said controller join; Said controller links to each other with said fling-cut switch; Said fling-cut switch links to each other with said compensation condenser group, and said circuit breaker is arranged between extraneous three phase network and the said controller, and said fuse is arranged between said circuit breaker and the said controller; Said compensation condenser group is joined with extraneous three phase network and is formed the reactive power compensation loop; It is characterized in that: between extraneous three phase network and said controller, also have additional current transformer and voltage transformer, said compensation condenser group also is serially connected with reactance, also is provided with standby power supply device in the said control cubicle.
2. the dynamic auto reactive power compensation cabinet of a kind of high pressure according to claim 1 is characterized in that: between said controller and said fling-cut switch, also be provided with the circuits for triggering plate.
3. the dynamic auto reactive power compensation cabinet of a kind of high pressure according to claim 1 is characterized in that: said fling-cut switch is bidirectional thyristor or individual event anti-parallel thyristor.
4. the dynamic auto reactive power compensation cabinet of a kind of high pressure according to claim 1 is characterized in that: the quantity of said current transformer is three.
5. the dynamic auto reactive power compensation cabinet of a kind of high pressure according to claim 1 is characterized in that: on said fuse, also be provided with alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202716709U CN202167856U (en) | 2011-07-27 | 2011-07-27 | Automatic high-voltage dynamic reactive compensation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202716709U CN202167856U (en) | 2011-07-27 | 2011-07-27 | Automatic high-voltage dynamic reactive compensation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202167856U true CN202167856U (en) | 2012-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202716709U Expired - Fee Related CN202167856U (en) | 2011-07-27 | 2011-07-27 | Automatic high-voltage dynamic reactive compensation cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202167856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551172A (en) * | 2018-04-20 | 2018-09-18 | 苏州中康电力开发有限公司 | Mixed compensation filter cabinet |
| CN110165776A (en) * | 2019-04-10 | 2019-08-23 | 昆明东控电器成套设备有限公司 | A kind of electrical energy transportation bus-bar system suitable for high altitude localities |
-
2011
- 2011-07-27 CN CN2011202716709U patent/CN202167856U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551172A (en) * | 2018-04-20 | 2018-09-18 | 苏州中康电力开发有限公司 | Mixed compensation filter cabinet |
| CN110165776A (en) * | 2019-04-10 | 2019-08-23 | 昆明东控电器成套设备有限公司 | A kind of electrical energy transportation bus-bar system suitable for high altitude localities |
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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 |
Granted publication date: 20120314 Termination date: 20170727 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |