CN201829965U - Intelligent power capacitor - Google Patents
Intelligent power capacitor Download PDFInfo
- Publication number
- CN201829965U CN201829965U CN2010205941314U CN201020594131U CN201829965U CN 201829965 U CN201829965 U CN 201829965U CN 2010205941314 U CN2010205941314 U CN 2010205941314U CN 201020594131 U CN201020594131 U CN 201020594131U CN 201829965 U CN201829965 U CN 201829965U
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- CN
- China
- Prior art keywords
- power capacitor
- intelligent power
- peripheral control
- control unit
- central processing
- 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
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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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- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to an intelligent power capacitor which comprises a shell; a current transformer, a peripheral control unit and a zero-cross-switching switch component are arranged on the upper part of the shell; the power capacitor is arranged at the lower part of the shell; the current transformer is connected with the peripheral control unit which is interactively connected with the zero-cross-switching switch component; the zero-cross-switching switch component and the power capacitor are connected by a lead wire of a magnetic latching relay; and the zero-cross-switching switch comprises a switching switch, a central processing unit and a protection function module. The intelligent power capacitor is safe in use and has no inrush current during switching and lessens the voltage surge and current impact on devices, and has long service life and lower cost.
Description
Technical field
The utility model relates to the equipment of a kind of low-voltage network and reactive power compensation, a kind of specifically intelligent power capacitor.
Background technology
Reactive-load compensation equipment is installed in electrical network, the reactive power that provides inductive reactance to consume, reduced the reactive power that circuit is carried, therefore can reduce the electric energy loss of circuit and transformer because of carrying reactive power to cause, stablize line voltage, guarantee power supply quality, energy-saving and cost-reducing synergistic effect is remarkable.
Present low pressure electric line, mainly realize the compensation of reactive power by switchboard reactive power compensation mechanism, mainly have following shortcoming: impulse current is bigger during switching capacitance, cause the relay contact life-span shorter, mechanical connecting element is more, it is bigger to take up room, and safeguards and the equal inconvenience of maintenance.
Summary of the invention
At defectives such as the impulse current that exists in the prior art are big, the relay contact life-span is short, mechanical connecting element is more, the utility model provides a kind of intelligent power capacitor, safety, no-flashy-flow during operating passing zero, reduced the impact of switching to electrical network, improve the rapidity of control, prolong the useful life of capacitor simultaneously.
The technical solution adopted in the utility model is as follows:
A kind of intelligent power capacitor, comprise housing, current transformer, peripheral control unit and operating passing zero switch module are installed in housing top, lower housing portion is installed power capacitor, current transformer is connected with peripheral control unit, peripheral control unit is connected alternately with the operating passing zero switch module, and the operating passing zero switch module is connected with the lead-in wire of power capacitor by magnetic latching relay.
The operating passing zero switch module of intelligent power capacitor is made up of fling-cut switch, central processing unit and defencive function module; central processing unit is connected alternately with peripheral control unit; the output of central processing unit is connected with defencive function module input, fling-cut switch input respectively; the output of defencive function module is connected with fling-cut switch input, power capacitor input respectively, and the fling-cut switch output is connected with the power capacitor input.
Can also display be installed on intelligent power capacitor housing top, be used to show every operating state, human-computer dialogue content, display is connected alternately with central processing unit.
As preferred a kind of scheme: power capacitor can select two capacity all to be less than or equal to 20KVAR △ type power capacitor.
As preferred another scheme: power capacitor can select a capacity to be less than or equal to 20KVARY type power capacitor.
The beneficial effects of the utility model mainly show:
1, during switching, realize the voltage zero-cross input, the current over-zero excision, the switching no-flashy-flow has alleviated voltge surge and rush of current to equipment, has significantly improved the useful life of equipment and capacitor.
2, simple in structure, Maintenance and Repair are convenient.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the functional block diagram of the utility model embodiment.
Embodiment
A kind of intelligent power capacitor, comprise housing, current transformer, peripheral control unit and operating passing zero switch module are installed in housing top, lower housing portion is installed power capacitor, current transformer is connected with peripheral control unit, peripheral control unit is connected alternately with the operating passing zero switch module, and the operating passing zero switch module is connected with the lead-in wire of power capacitor by magnetic latching relay.
Among Fig. 1; the operating passing zero switch module of the utility model intelligent power capacitor is made up of fling-cut switch, central processing unit and defencive function module; central processing unit is connected alternately with peripheral control unit; the output of central processing unit is connected with defencive function module input, fling-cut switch input respectively; the output of defencive function module is connected with fling-cut switch input, power capacitor input respectively, and the fling-cut switch output is connected with the power capacitor input.
In addition, can also display be installed on intelligent power capacitor housing top, display is connected alternately with central processing unit, is used to show every operating state, human-computer dialogue content.
The △ type power capacitor that two condenser capacities are less than or equal to 20KVAR can be installed below the intelligent power capacitor housing, form with the compensation of the mode of three-phase compensation to the distribution line reactive power.
Current transformer carries out current sample to electrical network, after sampling is finished, transmit signal to peripheral control unit, by peripheral control unit rated output factor, determine whether external electrical network is carried out reactive power compensation, the operating passing zero switch module is controlled the input and the excision of power capacitor by the break-make of self, thereby reaches the purpose that the reactive power to external electrical network compensates.
As another kind of execution mode, also can the Y type power capacitor that a condenser capacity be less than or equal to 20KVAR be installed below the intelligent power capacitor housing stating, thereby realize with the compensation of the mode of phase splitting compensation to the distribution line reactive power.
The utility model intelligent power capacitor can not add case, cabinet during use, directly separate unit use or many simple parallel connections after.In addition, use the utility model intelligent power capacitor, generally can save the connection lead more than 80%, reduce contact more than 80%, produce and reduce more than 60% man-hour.
In addition, the utility model intelligent power capacitor can be assembled fast, thereby reduces device power consumption, lead energy consumption and contact energy consumption more than 80%, further satisfies need of industrial production.
Claims (8)
1. intelligent power capacitor, comprise housing, it is characterized in that the installation of described housing top current transformer, peripheral control unit and operating passing zero switch module, described lower housing portion is installed power capacitor, described current transformer is connected with peripheral control unit, described peripheral control unit is connected alternately with the operating passing zero switch module, and described operating passing zero switch module is connected with the lead-in wire of power capacitor by magnetic latching relay.
2. intelligent power capacitor according to claim 1; it is characterized in that described operating passing zero switch module is made up of fling-cut switch, central processing unit and defencive function module; described central processing unit is connected alternately with peripheral control unit; the output of described central processing unit is connected with defencive function module input, fling-cut switch input respectively; the output of described defencive function module is connected with fling-cut switch input, power capacitor input respectively, and described fling-cut switch output is connected with the power capacitor input.
3. intelligent power capacitor according to claim 1 is characterized in that also being provided with display, and described display is connected alternately with central processing unit.
4. according to any one described intelligent power capacitor of claim 1-3, it is characterized in that described power capacitor is a Y type power capacitor.
5. according to any one described intelligent power capacitor of claim 1-3, it is characterized in that described power capacitor is two △ type power capacitors.
6. according to any one described intelligent power capacitor of claim 1-3, it is characterized in that described power capacitor capacity is less than or equal to 20KVAR.
7. intelligent power capacitor according to claim 4 is characterized in that described power capacitor capacity is less than or equal to 20KVAR.
8. intelligent power capacitor according to claim 5 is characterized in that described power capacitor capacity is less than or equal to 20KVAR.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205941314U CN201829965U (en) | 2010-10-29 | 2010-10-29 | Intelligent power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205941314U CN201829965U (en) | 2010-10-29 | 2010-10-29 | Intelligent power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829965U true CN201829965U (en) | 2011-05-11 |
Family
ID=43968479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205941314U Expired - Fee Related CN201829965U (en) | 2010-10-29 | 2010-10-29 | Intelligent power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829965U (en) |
-
2010
- 2010-10-29 CN CN2010205941314U patent/CN201829965U/en not_active Expired - Fee Related
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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: 20110511 Termination date: 20111029 |