CN204967278U - Energy -conserving reactive power compensator cabinet based on intelligence electric capacity - Google Patents
Energy -conserving reactive power compensator cabinet based on intelligence electric capacity Download PDFInfo
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- CN204967278U CN204967278U CN201520775937.6U CN201520775937U CN204967278U CN 204967278 U CN204967278 U CN 204967278U CN 201520775937 U CN201520775937 U CN 201520775937U CN 204967278 U CN204967278 U CN 204967278U
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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 relates to an energy -conserving reactive power compensator cabinet based on intelligence electric capacity, including the cabinet body, its characterized in that: internal circuit breaker, controller and the compensating circuit of setting up of cabinet, compensating circuit includes that the circuit is mended altogether to a plurality of groups three -phase and the circuit is mended to single -phase branch, the circuit is mended altogether to the three -phase and single -phase branch benefit circuit all includes the condenser and is used for the control capacitance ware to provide reactive compensation's on -off switch, the circuit breaker is connected with the three -phase grid power for control the break -make of whole reactive power compensator cabinet's electric power, the controller is established ties between circuit breaker and compensating circuit, installs voltage detector and current detection ware on the power of each looks. The utility model discloses a three -phase is mended altogether and is accomplished the compensation jointly with single -phase phase separating, has solved the unbalanced problem of three -phase compensation, and on -off switch adopts is zero synchronous switching technique, can realize accurate zero crossing switching, condenser switching process shove strike little, do not have excision overvoltage, a no arcing phenomenon.
Description
Technical field:
The utility model relates to power control unit, particularly relates to a kind of energy-conservation reactive compensation cabinet based on intelligent capacitor.
Background technology:
Electric load in electrical network is as motor, transformer etc., and major part belongs to inductive load, and needing in running provides corresponding reactive power to these equipment.Install in electrical network after the reactive-load compensation equipments such as shunt capacitor, the reactive power that inductive load consumes can be provided, decrease electric network source to inductive load, the reactive power of being carried by circuit, owing to decreasing the flowing of reactive power in electrical network, the electric energy loss that circuit and transformer cause because of conveying reactive power therefore can be reduced.The effect of capacitor compensation cabinet is equivalent to shunt capacitor on electric load, and the electric current of capacitor will offset a part of inductive current, thus inductive current is reduced, and total current reduces thereupon, and the phase difference of voltage and electric current diminishes, and power factor is improved.
In existing technology, due to user load, to use frequency converter more, capacitor compensation cabinet adopt fling-cut switch adopt be combination switch, proof voltage ability, the anti-shortcomings such as overload capacity difference, very easily damages and mostly existing compensation way is that employing three-phase compensates simultaneously of shoving, can not play good compensation effect to each phase load.
Summary of the invention:
The purpose of this utility model is to solve the deficiencies in the prior art, affords redress respond well, non-damageable reactive compensation cabinet, and its technical scheme is as follows:
Based on an energy-conservation reactive compensation cabinet for intelligent capacitor, comprise cabinet, it is characterized in that: arrange circuit breaker, controller and compensating circuit in described cabinet, described compensating circuit comprises some groups of three-phase total compensation circuit and single-phase point of benefit circuit; Described three-phase total compensation circuit and single-phase point of benefit circuit include capacitor and provide the fling-cut switch of reactive power compensation for control capacitor; Described circuit breaker is connected with three phase network power supply, and for controlling the break-make of the electric power of whole reactive compensation cabinet, described controller is connected between circuit breaker and compensating circuit, the power supply of each phase is provided with voltage detector and current detector.
Further, often organize described three-phase total compensation circuit and comprise the capacitor be made up of three end to end electric capacity, and be electrically connected by a control line and fling-cut switch.
Further, often organize single-phase point of described benefit circuit and comprise by three capacitors formed parallel with one another, and one end of capacitor is electrically connected by control line and fling-cut switch, other end ground connection.
Further, described fling-cut switch is synchronous zero fling-cut switch.
Further, described controller and compensating circuit are by serial communication transfer data information, and described serial ports can be RS485 or RS232.
Further, described compensating circuit is connected with three phase network power supply by lightning arrester, circuit breaker successively.
The utility model beneficial effect is compared with prior art: the utility model adopts three-phase total compensation and single-phase phase-splitting jointly to complete compensation, solve three-phase and compensate unbalanced problem, and fling-cut switch employing is synchronous zero switching technology, can realize accurate zero crossing switching, capacitor switching process is shoved, and impact is little, nothing excises overvoltage, without arcing phenomenon.
Accompanying drawing illustrates:
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model;
Fig. 3 is the structural representation in the utility model cabinet;
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of energy-conservation reactive compensation cabinet based on intelligent capacitor, comprise cabinet 100, arrange circuit breaker 200, controller 300 and compensating circuit 400 in cabinet 100, described compensating circuit 400 comprises some groups of three-phase total compensation circuit 410 and single-phase point of benefit circuit 420; The group number of described three-phase total compensation circuit 410 and single-phase point of benefit circuit 420 can combine according to the capacitance size of required switching to be determined.
Wherein, three-phase total compensation circuit 410 and single-phase point of benefit circuit 420 include capacitor 500 and provide the fling-cut switch 600 of reactive power compensation for control capacitor 500; Described circuit breaker 200 is connected with three phase network power supply, for controlling the break-make of the electric power of whole reactive compensation cabinet, described controller 300 is for controlling the automatic operation of whole compensating cabinet, described fling-cut switch 600 is connected between circuit breaker 200 and compensating circuit 400, the power supply of each phase is provided with voltage detector 700 and current detector 800.
The three-phase total compensation circuit 410 of each group comprises the capacitor 500 be made up of three end to end electric capacity, and is electrically connected by a control line and fling-cut switch 600.
Mend circuit 420 and comprise by three capacitors 500 formed parallel with one another for single-phase point of each group, and one end of capacitor 500 is electrically connected by control line and fling-cut switch, other end ground connection.
Fling-cut switch 600 is synchronous zero fling-cut switch; Controller 300 and compensating circuit 400 are by serial ports 900 communication transfer data information, and described serial ports 900 can be RS485 or RS232.
Compensating circuit 400 is connected with three phase network power supply by lightning arrester, circuit breaker 200 successively, and what arrange that lightning arrester can protect reactive compensation cabinet exempts from broken by lightning.
Three-phase power grid voltage is after being delivered to client, when client low voltage being detected, controller controls circuit breaker and automatically closes, compensating circuit conducting, namely fling-cut switch closes, the switching capacitance size that compensating circuit calculates according to controller, provides reactive power compensation, until when client voltage is in normal range (NR), breaker controller controls circuit breaker and disconnects.
The utility model completes compensation jointly by three-phase total compensation and single-phase phase-splitting, solve three-phase and compensate unbalanced problem, and fling-cut switch employing is synchronous zero switching technology, can realize accurate zero crossing switching, capacitor switching process is shoved, and impact is little, nothing excises overvoltage, without arcing phenomenon.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (6)
1. based on an energy-conservation reactive compensation cabinet for intelligent capacitor, comprise cabinet, it is characterized in that: arrange circuit breaker, controller and compensating circuit in described cabinet, described compensating circuit comprises some groups of three-phase total compensation circuit and single-phase point of benefit circuit; Described three-phase total compensation circuit and single-phase point of benefit circuit include capacitor and provide the fling-cut switch of reactive power compensation for control capacitor; Described circuit breaker is connected with three phase network power supply, and for controlling the break-make of the electric power of whole reactive compensation cabinet, described controller is connected between circuit breaker and compensating circuit, the power supply of each phase is provided with voltage detector and current detector.
2. a kind of energy-conservation reactive compensation cabinet based on intelligent capacitor according to claim 1, be is characterized in that: often organize described three-phase total compensation circuit and comprise the capacitor be made up of three end to end electric capacity, and be electrically connected by a control line and fling-cut switch.
3. a kind of energy-conservation reactive compensation cabinet based on intelligent capacitor according to claim 1, it is characterized in that: often organize single-phase point of described benefit circuit and comprise by three capacitors formed parallel with one another, and one end of capacitor is electrically connected by control line and fling-cut switch, other end ground connection.
4. a kind of energy-conservation reactive compensation cabinet based on intelligent capacitor according to Claims 2 or 3, is characterized in that: described fling-cut switch adopts synchronous zero fling-cut switch.
5. a kind of energy-conservation reactive compensation cabinet based on intelligent capacitor according to claim 1, is characterized in that: described controller and compensating circuit are by serial communication transfer data information, and described serial ports can be RS485 or RS232.
6. a kind of energy-conservation reactive compensation cabinet based on intelligent capacitor according to claim 1, is characterized in that: described compensating circuit is connected with three phase network power supply by lightning arrester, circuit breaker successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520775937.6U CN204967278U (en) | 2015-10-09 | 2015-10-09 | Energy -conserving reactive power compensator cabinet based on intelligence electric capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520775937.6U CN204967278U (en) | 2015-10-09 | 2015-10-09 | Energy -conserving reactive power compensator cabinet based on intelligence electric capacity |
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| CN204967278U true CN204967278U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520775937.6U Active CN204967278U (en) | 2015-10-09 | 2015-10-09 | Energy -conserving reactive power compensator cabinet based on intelligence electric capacity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667034A (en) * | 2018-04-20 | 2018-10-16 | 苏州中康电力开发有限公司 | The connection circuit of power network overvoltage is absorbed using the capacitor of reactive power compensator |
-
2015
- 2015-10-09 CN CN201520775937.6U patent/CN204967278U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667034A (en) * | 2018-04-20 | 2018-10-16 | 苏州中康电力开发有限公司 | The connection circuit of power network overvoltage is absorbed using the capacitor of reactive power compensator |
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| GR01 | Patent grant |