CN203387190U - High-voltage reactive compensator - Google Patents
High-voltage reactive compensator Download PDFInfo
- Publication number
- CN203387190U CN203387190U CN201320422383.2U CN201320422383U CN203387190U CN 203387190 U CN203387190 U CN 203387190U CN 201320422383 U CN201320422383 U CN 201320422383U CN 203387190 U CN203387190 U CN 203387190U
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- China
- Prior art keywords
- voltage
- microprocessor
- transformer
- fuse
- current transformer
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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 discloses a high-voltage reactive compensator which comprises a current transformer, a fuse, a voltage transformer and a microprocessor. A signal detection end of the current transformer is connected with a high-voltage transmission line, a signal output end of the current transformer is connected with a first signal input end of the microprocessor, one end of the fuse is connected with the high-voltage transmission line, the other end of the fuse is connected with a signal input end of the voltage transformer, a signal output end of the voltage transformer is connected with a second signal input end of the microprocessor, and a control output end of the microprocessor is connected with control input ends of switching switches. The high-voltage reactive compensator respectively uses the voltage transformer and the current transformer to detect output voltage and current of the high-voltage transmission line, thereby realizing twice isolation for high voltage and large current; and the microprocessor controls on/off states the switching switches, so that earth faults of the line are effectively avoided.
Description
Technical field
The utility model relates to a kind of power equipment, relates in particular to a kind of high-pressure reactive compensation device.
Background technology
In electric power system, generally adopt lOKV transmission of electricity, distribution power supply station on-load mostly to be inductive load, reactive demand is large, has increased line loss, and therefore auto-compensation is idle to meet the reactive demand of load on the line for needs, reduces line loss.Existing high pressure automatic reactive compensation is when measuring and calculating power, current acquisition is all to adopt open-close type current transformer, because the field natural conditions are comparatively severe, thunder and lightning all can be split combined mutual inductor and cause shadow, its insulation level is descended, may cause to puncture or creepage along secondary cable, control device is caused damage, cause the high-voltage circuit grounding fault.
Summary of the invention
The high-pressure reactive compensation device of the purpose of this utility model with regard to being to provide a kind of easy for installation, simple in structure in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises current transformer, fuse, voltage transformer and microprocessor, the input end of described current transformer is connected with ultra-high-tension power transmission line, the signal output part of described current transformer is connected with the first signal input of described microprocessor, one end of described fuse is connected with described high voltage transmission line, the other end of described fuse is connected with described voltage transformer signal input part, the signal output part of described voltage transformer is connected with the secondary signal input of described microprocessor, the control output end of described microprocessor is connected with the control input end of described fling-cut switch.
Particularly, be connected the other end ground connection of described lightning arrester between described fuse and described voltage transformer with lightning arrester one end.
Further, described fling-cut switch comprises thyristor switch and magnetic maintained switch, and described thyristor switch and magnetic maintained switch are connected in parallel.
As preferably, described thyristor switch comprises the thyristor that two reverse parallel connections connect.
The beneficial effects of the utility model are:
The utility model adopts the voltage transformer summation current transformer to detect respectively the output voltage electric current of high voltage transmission line, and high voltage and large electric current are realized to secondary isolation, and the earth fault of circuit is effectively avoided on the control break-make road by microprocessor to fling-cut switch.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-fuse, 2-current transformer, 3-voltage transformer, 4-microprocessor, 5-lightning arrester, 6-fling-cut switch.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises current transformer 2, fuse 1, voltage transformer and microprocessor 4, the input end of current transformer 2 is connected with ultra-high-tension power transmission line, the signal output part of current transformer 2 is connected with the first signal input of microprocessor 4, one end of fuse 1 is connected with high voltage transmission line, the other end of fuse 1 is connected with voltage transformer 3 signal input parts, the signal output part of voltage transformer 3 is connected with the secondary signal input of microprocessor 4, the control output end of microprocessor 4 is connected with the control input end of fling-cut switch 6.
Between fuse 1 and voltage transformer 3, with lightning arrester 5 one ends, be connected, the other end ground connection of lightning arrester 5, stop that electric current punctures or creepage along secondary cable, prevents from control device is caused damage.
Fling-cut switch 6 comprises thyristor switch and magnetic maintained switch, thyristor switch and magnetic maintained switch are connected in parallel, the moment switched on and off has advantages of the silicon control zero-cross switching, and there is magnetic maintained switch zero-power during normal the connection, thyristor switch comprises the thyristor that two reverse parallel connections connect, the switching capacitance group comprises that three connect into leg-of-mutton switching capacitance, the tie point of described switching capacitance is connected respectively on fling-cut switch 6, this switching capacitance group is that three switching capacitances join end to end successively and form leg-of-mutton shape, its in twos the tie point of switching capacitance be connected respectively on fling-cut switch 6, adopt triangle to connect the switching capacitance group, can obtain larger compensation effect.
Operation principle of the present utility model is as follows: the current signal of current transformer 2 Real-time Collection three-phase bus also flows to microprocessor 4, the voltage signal of voltage transformer 3 Real-time Collection three-phase bus also flows to microprocessor 4, the signal that 4 pairs of current transformers 2 of microprocessor and voltage transformer 3 are carried is processed, the power factor signal judgement gone out according to current transformer 2 and voltage sensor senses is controlled the switching amount of switching capacitance group and exports control signal, fling-cut switch 6 receives and carries out the instruction from microprocessor 4, complete the switching action of switching capacitance group, thereby adjusting compensation capacity.
Above embodiment is only unrestricted in order to the technical solution of the utility model to be described.Although with reference to embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is modified or is equal to replacement, do not break away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. a high-pressure reactive compensation device, it is characterized in that: comprise current transformer, fuse, voltage transformer and microprocessor, the input end of described current transformer is connected with ultra-high-tension power transmission line, the signal output part of described current transformer is connected with the first signal input of described microprocessor, one end of described fuse is connected with described high voltage transmission line, the other end of described fuse is connected with described voltage transformer signal input part, the signal output part of described voltage transformer is connected with the secondary signal input of described microprocessor, the control output end of described microprocessor is connected with the control input end of described fling-cut switch.
2. a kind of high-pressure reactive compensation device according to claim 1, is characterized in that: be connected the other end ground connection of described lightning arrester between described fuse and described voltage transformer with lightning arrester one end.
3. a kind of high-pressure reactive compensation device according to claim 1, it is characterized in that: described fling-cut switch comprises thyristor switch and magnetic maintained switch, described thyristor switch and magnetic maintained switch are connected in parallel.
4. a kind of high-pressure reactive compensation device according to claim 3 is characterized in that: described thyristor switch comprises the thyristor that two reverse parallel connections connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320422383.2U CN203387190U (en) | 2013-07-16 | 2013-07-16 | High-voltage reactive compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320422383.2U CN203387190U (en) | 2013-07-16 | 2013-07-16 | High-voltage reactive compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203387190U true CN203387190U (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320422383.2U Expired - Fee Related CN203387190U (en) | 2013-07-16 | 2013-07-16 | High-voltage reactive compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203387190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333983A (en) * | 2017-12-27 | 2018-07-27 | 国网北京市电力公司 | Voltage-regulation tap changer, the application method of switch |
-
2013
- 2013-07-16 CN CN201320422383.2U patent/CN203387190U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333983A (en) * | 2017-12-27 | 2018-07-27 | 国网北京市电力公司 | Voltage-regulation tap changer, the application method of switch |
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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: 20140108 Termination date: 20170716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |