CN201541131U - Intelligent powerless compensation device of high-voltage line - Google Patents
Intelligent powerless compensation device of high-voltage line Download PDFInfo
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- CN201541131U CN201541131U CN2009202571806U CN200920257180U CN201541131U CN 201541131 U CN201541131 U CN 201541131U CN 2009202571806 U CN2009202571806 U CN 2009202571806U CN 200920257180 U CN200920257180 U CN 200920257180U CN 201541131 U CN201541131 U CN 201541131U
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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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides an intelligent powerless compensation device of a high-voltage line, comprising a fuse, an arrester, a fling-cutting switch and a capacitor. The fuse and the arrester are electrically connected with the load side of the high-voltage line; the fling-cutting switch is connected with the fuse; and the capacitor is connected with the arrester and the fling-cutting switch. The intelligent powerless compensation device of a high-voltage line further comprises a three-phase multi-winding current voltage combined type mutual inductor, a current mutual inductor and a comprehensive monitoring protection controller. The three-phase multi-winding current voltage combined type mutual inductor is connected with the power side of the high-voltage line to collect three-phase current signals and three-phase voltage signals at the power side of the high-voltage line; the current mutual inductor is arranged between the fling-cutting switch and the fuse; and the comprehensive monitoring protection controller receives the three-phase current signals and the three-phase voltage signals and issues a first control instruction to the fling-cutting switch or receives output signals of the current mutual inductor and issues a second control instruction to the fling-cutting switch. The intelligent powerless compensation device of a high-voltage line has the double functions of high-voltage line powerless compensation and low-current grounded alarm.
Description
Technical field
The utility model relates to a kind of reactive-load compensation equipment, and particularly relevant for a kind of high-tension line intelligent powerless compensation equipment.
Background technology
Alternating current is in by pure resistance, and electric energy has all changed into heat energy, and does not do work in by pure capacitive or pure inductive load, and that is to say does not have consumed power, is reactive power.
Reactive power compensation device role in power supply system is exactly to improve the power factor of electrical network, reduces the loss of supply transformer and conveying circuit, improves power supplying efficiency, improves the power supply environment.So reactive power compensation device is being played the part of a very important role in power supply system.Reactive power compensating controller according to reactive power in the electrical network from size and the character input of coming control capacitor and withdraw from electrical network, the power factor in the electrical network is remained in the set point.
With respect to developed country, the situation that urban and rural power grids ubiquity radius of electricity supply is long, quality of voltage is poor, power factor is low in the most of area of China.Do not obtain effective balance if there is function, can not only reduce the loss of electrical network greatly, and have great importance improving quality of voltage.But at present the most of urban and rural power grids power factor of China is on the low side, idle very uneven, therefore improves power factor of electric network, balance is idle, improve quality of voltage, reduce line loss, is the current vital task that faces of electric power system.With capacitor in parallel with the network inductive load be the conventional method of compensating power, at home and abroad obtained widely to use.Transformer station's centralized compensation mode is generally adopted in the reactive power compensation of 10kV circuit, this compensation way is only to required idle compensation of main transformer in standing, and idle to a large amount of distribution transformings on 10kV circuit and the circuit without any compensating action, must take reactive power compensation on the spot could really reduce line loss for the circuit reactive loss.The rural power grids circuit is longer, and Load distribution is inhomogeneous, needs the compensation point of installation more, if indiscriminately imitate the reactive power compensation pattern of transformer station, certainly will cause investment big, and compensation effect is not obvious, and the installation and maintenance inconvenience.If adopt the fixed location to install and fix the compensation method of capacity, though invest lessly, owing to do not add any protection, the normal capacitor burnout failure that takes place causes potential safety hazard to operation of power networks in the abominable rural power grids of service conditions.And at present the controller ' s intellectualization degree in the reactive power compensator is not high, requires the user in use, imports more parameter, and if parameter be provided with improperly, can make that compensation effect is undesirable, influenced the further popularization of product.
In addition, the single phase ground fault of China's power distribution network all is a difficult problem of puzzlement electric company all the time.China's power distribution network is neutral nondirect earthing network (claiming small grounding current system again), when single-phase earthing takes place when, because the electric current of fault point is very little, and the line voltage between the three-phase still keeps symmetry, to not influence of load power supply, therefore, in the ordinary course of things, all allow to continue again to move 1-2 hour, and needn't trip immediately.But after single-phase earthing, the voltage to earth of other two-phases raises
Doubly, further be expanded into or multipoint earthing short circuit at 2 in order to prevent fault, the operations staff should in time take measures to be eliminated.When distribution network generation low current grounding, can't predict and take the effective precautionary measures in advance, only can adopt open line method and artificial line walking ocular estimate to determine the accurate position of earth point afterwards, open line method need carry out a large amount of grid switching operations, bring very big loss to production, especially at the Production Regional of working continuously and some key equipments; And after accident takes place, take artificial line walking ocular estimate to seek earth point, all will expend great amount of manpower and material resources and time, and it is very high, very uneconomical that the one-phase ground protection equipment manufacturing cost is installed separately on the line at every turn.
The utility model content
The purpose of this utility model is to provide a kind of high-tension line intelligent powerless compensation equipment, combines the dual-use function that high-tension line reactive power compensation and small current neutral grounding are reported to the police.
For reaching above-mentioned purpose, the utility model proposes a kind of high-tension line intelligent powerless compensation equipment and comprise fuse, lightning arrester, fling-cut switch and capacitor, fuse and lightning arrester are electrically connected with the high-tension line load side, fling-cut switch connects above-mentioned fuse, and capacitor connects lightning arrester and above-mentioned fling-cut switch.High-tension line intelligent powerless compensation equipment also comprises many winding currents of three-phase voltage combined instrument transformer, current transformer and comprehensively monitoring protection controller.Many winding currents of three-phase voltage combined instrument transformer connects the high-tension line mains side, gathers the three-phase current signal and the three-phase voltage signal of high-tension line mains side; Current transformer is arranged between fling-cut switch and the fuse; Comprehensively monitoring protection controller receives above-mentioned three-phase current signal and three-phase voltage signal sends first control command to fling-cut switch; perhaps comprehensively monitoring protection controller receives the output signal of above-mentioned current transformer, and sends second control command to fling-cut switch.
In the utility model; comprehensively monitoring protection controller comprises collecting unit, opens into leaving unit, man-machine interaction unit, communication unit, power subsystem, dual port random access memory communication, digital signal processor and microprocessor; wherein collecting unit is electrically connected above-mentioned digital signal processor with opening into leaving the unit; man-machine interaction unit and communication unit are electrically connected microprocessor, and power subsystem, microprocessor and digital signal processor are electrically connected above-mentioned dual port random access memory communication respectively.
In the utility model, collecting unit comprises instrument transformer, signal conditioning circuit and modulus conversion chip, instrument transformer receives three-phase current signal, the three-phase voltage signal that many winding currents of three-phase voltage combined instrument transformer is gathered from mains side, and low voltage signal and the little current signal that obtains inputed to signal conditioning circuit, the output of signal conditioning circuit is connected to modulus (AD) conversion chip, and the output of modulus conversion chip is connected to digital signal processor.
In the utility model, communication unit is GSM SMS transmission module or GPRS wireless transport module, and GSM SMS transmission module or GPRS wireless transport module receive the output of above-mentioned microprocessor.
In the utility model, man-machine interaction unit is light-emitting diode, keyboard or display screen.
In the utility model, fling-cut switch is the single phase permanent magnetic mechanism vacuum circuit-breaker.
In sum, the utility model not only has the function of intelligent powerless compensation, but also has the function that single-phase small current neutral grounding is reported to the police.The overcurrent protection that the current transformer of the overcurrent protection function that integrated protection controller has on being installed in vacuum circuit-breaker constitutes; can also effectively prevent to shove harm to capacitor also need not operator on duty or the attendant operation of checking meter to the scene.
Description of drawings
Fig. 1 is the theory diagram of the utility model embodiment.
The scheme of installation of Fig. 2 when to be that Fig. 1 mesohigh circuit intelligent powerless compensation equipment is actual use.
Fig. 3 is the circuit diagram of the comprehensively monitoring protection controller of Fig. 1 mesohigh circuit intelligent powerless compensation equipment.
Embodiment
For above-mentioned and other purpose, feature and advantage of the present utility model can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Fig. 1 is the theory diagram of the utility model embodiment, and the scheme of installation of Fig. 2 when to be that the high-tension line intelligent powerless compensation equipment among Fig. 1 is actual use please refer to Fig. 1 to Fig. 2.High-tension line intelligent powerless compensation equipment comprises fuse 11, lightning arrester 12, fling-cut switch 13 and capacitor 14.Fuse 11 and lightning arrester 12 are electrically connected with the high-tension line load side, and fling-cut switch 13 connects above-mentioned fuse 12.Capacitor 14 connects above-mentioned fling-cut switch 13 and lightning arrester 12.High-tension line intelligent powerless compensation equipment also comprises many winding currents of three-phase voltage combined instrument transformer 16, current transformer 17 and comprehensively monitoring protection controller 18.Many winding currents of three-phase voltage combined instrument transformer 16 connects the high-tension line mains side, gathers the three-phase current signal and the three-phase voltage signal of high-tension line mains side.Current transformer 17 is arranged between fling-cut switch 13 and the fuse 12.Comprehensively monitoring protection controller 18 receives above-mentioned three-phase current signal and three-phase voltage signal sends first control command to fling-cut switch 13; perhaps comprehensively monitoring protection controller 18 receives the output signal of above-mentioned current transformer, and sends second control command to fling-cut switch 13.
In the present embodiment; comprehensively monitoring protection controller 18 comprises collecting unit 181, opens into leaving unit 182, man-machine interaction unit 184, communication unit 185, power subsystem 186, dual port random access memory communication 187, digital signal processor 188 and microprocessor 189; wherein collecting unit 181 is electrically connected above-mentioned digital signal processor 188 with opening into leaving unit 182; man-machine interaction unit 184 and communication unit 185 are electrically connected microprocessor 189, and microprocessor 189 is communicated by letter by dual port random access memory (RAM) 187 with digital signal processor 188.Wherein digital signal processor is the TMS320LF2407 type, and microprocessor is the M16C62P type
Collecting unit 181 comprises instrument transformer 181a, signal conditioning circuit 181b and modulus conversion chip 181c.Instrument transformer 181a receives three-phase current signal, the three-phase voltage signal that many winding currents of three-phase voltage combined instrument transformer 16 is gathered from mains side, and low voltage signal and the little current signal that obtains inputed to signal conditioning circuit 181b, signal conditioning circuit 181b nurses one's health and obtains conditioned signal to the low voltage signal and the little current signal of input, and modulus conversion chip 181c carries out analog-to-digital conversion with the conditioned signal of input.The concrete principle of above-mentioned instrument transformer 181a, signal conditioning circuit 181b and modulus conversion chip 181c has in this area and belongs to common practise the people of common knowledge, is not described in detail at this.
When carrying out reactive power compensation, digital signal processor 188 calculates active power, reactive power and the power factor on the circuit to the received signal, and compare with set point in the digital signal processor 188, and then judge whether to send first control command to fling-cut switch device 13, this set point can utilize keyboard 184a or display screen 184b to set.At this, we are that example describes with the reactive power, when detected reactive power during greater than the reactive power value set, send and drop into signal to vacuum circuit-breaker 13, utilize the reactive power that capacitor 14 compensates to be needed, otherwise promptly send the excision signal to vacuum circuit-breaker 13, make capacitor 14 withdraw from electrical network.In the present embodiment, fling-cut switch 13 is the individual event permanent magnetic actuator vacuum circuit breaker.Because in the past reactive-load compensation equipment all is disposable input or excision three-phase capacitor no matter be with vacuum contactor or circuit breaker on the post, but owing to be that three-phase drops into together or excises, may be a phase operating passing zero at most only, and two-phase all can not crossed zero position input or excision capacitor in addition.Can produce the phenomenon of shoving when having caused input, overvoltage is arranged when cutting capacitor.The individual event permanent magnetic actuator vacuum circuit breaker can be realized operating passing zero, prevents to shove and superpotential impact, makes obtain prolonging the useful life of capacitor.
In addition, the high-tension line intelligent powerless compensation equipment in the present embodiment also has the small current neutral grounding warning function when single phase ground fault takes place.Concrete operation principle is as follows: the three-phase current signal and the three-phase voltage signal of the mains side that comprehensively monitoring protection controller 18 collects according to many windings of three-phase outdoor high-voltage combined instrument transformer 16 obtain zero-sequence current and residual voltage.How digital signal processor 188 calculates zero-sequence current and residual voltage to those skilled in the art according to the three-phase current signal of mains side and three-phase voltage signal, belongs to common practise, introduces no longer in detail at this.When single phase ground fault takes place when, the three-phase voltage of mains side and three-phase electricity fail to be convened for lack of a quorum and produce imbalance, residual voltage and zero-sequence current also can change, and digital signal processor 188 compares the set point of the actual residual voltage that obtains and zero-sequence current and residual voltage and zero-sequence current.During less than 30V, is for low current grounding does not occur less than 10A, residual voltage at zero-sequence current as on-the-spot setting data, and then the value of setting of zero-sequence current can be 10A, and the set point of residual voltage can be 30V.Residual voltage that obtains when Practical Calculation and zero-sequence current are during greater than the set point of residual voltage and zero-sequence current, microprocessor 189 control man-machine interaction units 184 are reported to the police, in the present embodiment, man-machine interaction unit 184 is light-emitting diode 184c, and the luminous then expression of light-emitting diode 184c is reported to the police.
Further; present embodiment also is arranged at current transformer 17 between fuse 11 and fling-cut switch 13; the actual value that current transformer 17 is gathered the three-phase current signal on the capacitor 14; and export it to comprehensively monitoring protection controller 18; the actual value of the three-phase current signal on the capacitor 14 that comprehensively monitoring protection controller 18 is relatively imported and the set point of the three-phase current signal on the capacitor 14; when actual value during greater than set point; comprehensively monitoring protection controller 18 sends excision signal (second control command) to fling-cut switch 13; make capacitor 14 withdraw from electrical network, otherwise fling-cut switch 13 keep the input state.Can avoid capacitor 14 to be burnt out like this even explode.The overcurrent protection of present most of products is protected by fuse 11, and protection is not too accurate.And the infringement of shoving for capacitor 14 often all progressively punctures.The protection of fuse 11 can not too accurately put in place, is protected as main by comprehensively monitoring protection controller 18 herein, and the protective current size can be set according to on-site actual situations, accomplishes accurate protection.Fuse 11 is protected in support, and it is perfect that overcurrent protection is able to.
This shows that the high-tension line intelligent powerless compensation equipment in the present embodiment not only has the function of intelligent powerless compensation, but also have the function that single-phase small current neutral grounding is reported to the police.The overcurrent protection that the current transformer of the overcurrent protection function that integrated protection controller has on being installed in fling-cut switch constitutes; can also effectively prevent to shove harm to capacitor also need not operator on duty or the attendant operation of checking meter to the scene.
Concrete case study on implementation only is a preferable case study on implementation of the present utility model described in the utility model, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be as technology category of the present utility model.
Claims (7)
1. high-tension line intelligent powerless compensation equipment, comprise fuse, lightning arrester, fling-cut switch and capacitor, fuse and lightning arrester are electrically connected with the high-tension line load side, fling-cut switch connects above-mentioned fuse, capacitor connects above-mentioned fling-cut switch and above-mentioned lightning arrester, it is characterized in that, also comprise:
Many winding currents of three-phase voltage combined instrument transformer connects the high-tension line mains side, gathers the three-phase current signal and the three-phase voltage signal of high-tension line mains side;
Current transformer is arranged between fling-cut switch and the fuse;
Comprehensively monitoring protection controller; receive above-mentioned three-phase current signal and three-phase voltage signal and send first control command to fling-cut switch; perhaps comprehensively monitoring protection controller receives the output signal of above-mentioned current transformer, and sends second control command to fling-cut switch.
2. high-tension line intelligent powerless compensation equipment according to claim 1; it is characterized in that; wherein comprehensively monitoring protection controller comprises collecting unit; open into leaving the unit; man-machine interaction unit; communication unit; power subsystem; the dual port random access memory communication; digital signal processor and microprocessor; wherein collecting unit is electrically connected above-mentioned digital signal processor with opening into leaving the unit; man-machine interaction unit and communication unit are electrically connected microprocessor, power subsystem; microprocessor and digital signal processor are electrically connected above-mentioned dual port random access memory communication respectively.
3. high-tension line intelligent powerless compensation equipment according to claim 2, it is characterized in that, wherein collecting unit comprises instrument transformer, signal conditioning circuit and modulus conversion chip, instrument transformer receives three-phase current signal, the three-phase voltage signal that many winding currents of three-phase voltage combined instrument transformer is gathered from mains side, and low voltage signal and the little current signal that obtains inputed to signal conditioning circuit, the output of signal conditioning circuit is connected to modulus conversion chip, and the output of modulus conversion chip is connected to digital signal processor.
4. high-tension line intelligent powerless compensation equipment according to claim 2 is characterized in that, wherein communication unit is GSM SMS transmission module or GPRS wireless transport module.
5. high-tension line intelligent powerless compensation equipment according to claim 2 is characterized in that wherein man-machine interaction unit is light-emitting diode, keyboard or display screen.
6. high-tension line intelligent powerless compensation equipment according to claim 2 is characterized in that wherein digital signal processor is the TMS320LF2407 type, and microprocessor is the M16C62P type.
7. according to any described high-tension line intelligent powerless compensation equipment among the claim 1-6, it is characterized in that wherein fling-cut switch is the single phase permanent magnetic mechanism vacuum circuit-breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202571806U CN201541131U (en) | 2009-11-04 | 2009-11-04 | Intelligent powerless compensation device of high-voltage line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202571806U CN201541131U (en) | 2009-11-04 | 2009-11-04 | Intelligent powerless compensation device of high-voltage line |
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| CN201541131U true CN201541131U (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202571806U Expired - Fee Related CN201541131U (en) | 2009-11-04 | 2009-11-04 | Intelligent powerless compensation device of high-voltage line |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412547A (en) * | 2011-11-30 | 2012-04-11 | 日升集团有限公司 | Control device of outdoor high voltage alternating current vacuum breaker |
| CN102437576A (en) * | 2011-12-20 | 2012-05-02 | 安徽鑫龙电器股份有限公司 | Active power filter (APF) controller and control method thereof |
| CN105490283A (en) * | 2015-09-23 | 2016-04-13 | 国家电网公司 | Reactive power compensation controller for power |
| CN105911423A (en) * | 2016-06-06 | 2016-08-31 | 滁州康能电气有限公司 | Jet-type fusing online monitoring device |
| CN109980633A (en) * | 2019-02-26 | 2019-07-05 | 国网浙江慈溪市供电有限公司 | For the power conversion method of power grid, system and electronic equipment |
-
2009
- 2009-11-04 CN CN2009202571806U patent/CN201541131U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412547A (en) * | 2011-11-30 | 2012-04-11 | 日升集团有限公司 | Control device of outdoor high voltage alternating current vacuum breaker |
| CN102412547B (en) * | 2011-11-30 | 2015-02-18 | 日升集团有限公司 | Control device of outdoor high voltage alternating current vacuum breaker |
| CN102437576A (en) * | 2011-12-20 | 2012-05-02 | 安徽鑫龙电器股份有限公司 | Active power filter (APF) controller and control method thereof |
| CN102437576B (en) * | 2011-12-20 | 2014-04-16 | 安徽佑赛科技有限公司 | Active power filter (APF) controller and control method thereof |
| CN105490283A (en) * | 2015-09-23 | 2016-04-13 | 国家电网公司 | Reactive power compensation controller for power |
| CN105911423A (en) * | 2016-06-06 | 2016-08-31 | 滁州康能电气有限公司 | Jet-type fusing online monitoring device |
| CN109980633A (en) * | 2019-02-26 | 2019-07-05 | 国网浙江慈溪市供电有限公司 | For the power conversion method of power grid, system and electronic equipment |
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| 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: 20100804 Termination date: 20121104 |