CN203522205U - Double-switching capacitance compensating device - Google Patents
Double-switching capacitance compensating device Download PDFInfo
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- CN203522205U CN203522205U CN201320659367.5U CN201320659367U CN203522205U CN 203522205 U CN203522205 U CN 203522205U CN 201320659367 U CN201320659367 U CN 201320659367U CN 203522205 U CN203522205 U CN 203522205U
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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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Abstract
The utility model discloses a double-switching capacitance compensating device which comprises the following components: a first capacitance compensator, a second capacitance compensator, a signal sampling circuit, a signal amplifier, a central processing unit, a power switching circuit, a temperature sensing amplifier, a first switching set, a second switching set and a switching selecting circuit. The first switching set comprises a first zero-crossing switching circuit and a second zero-crossing switching circuit. The second switching set comprises a third zero-crossing switching circuit and a fourth zero-crossing switching circuit. The first zero-crossing switching circuit and the second zero-crossing switching circuit are respectively connected with the first capacitance compensator electrically. The third zero-crossing switching circuit and the fourth zero-crossing switching circuit are respectively connected with the second capacitance compensator electrically. The double-switching capacitance compensating device has the following functions: realizing simple structure, effectively reducing switching capacitor flashy flow, prolonging service life of switch contact of the capacitor, and effectively improving switching timeliness and switching efficiency in use process. When a failure occurs, convenient maintenance is realized. The double-switching capacitance compensating device has high applicability.
Description
Technical field
The utility model belongs to electrical network electric energy mesolow switching compensation technique field, is specifically related to a kind of double-throw and cuts Electric capacity compensation device.
Background technology
Current electrical network electric energy is mainly used for commercial power, and the commercial power overwhelming majority is for inductive load, and along with the harmonic sources such as power electronic equipment increase, harmonic pollution is more and more serious, especially more general with 3,5 and 7 subharmonic.To this, low-pressure reactive compensation field conventionally can be on the line and the front end serial connection that connects power capacitor suppress the corresponding reactance Rate reactor of harmonic wave, to eliminate corresponding times harmonic to the infringement of the capacitor reactive power of compensated line simultaneously.
Existing reactive power compensation device comprises: electric power knife switch, and fuse, idle compensating control, miniature circuit breaker, thermal relay, capacitor switching switch, power capacitors etc., suppress humorous wave energy as need reach, and also need serial connection to suppress the reactor of harmonic wave.There is following shortcoming in it: switching capacitance electric current is large, can produce surge impact electric current, and the capacitor switching switch contact life-span is short, and wiring is numerous and diverse, takes up room large, and Maintenance and Repair are inconvenient, and cost is high, and electric connecting part is many, and equipment easily lost efficacy.
Utility model content
The purpose of this utility model be to provide a kind of switching capacitance shove little, stability in use is high and long service life, Electric capacity compensation device is cut in the easy double-throw of fitting operation.
The technical scheme that realizes the utility model object is that Electric capacity compensation device is cut in a kind of double-throw, comprise the first capacitive compensator, the second capacitive compensator, signal sample circuit, signal amplifier, central processing unit, power-switching circuit, temperature sensing amplifier, the first switching group, the second switching group and switching are selected circuit, described signal sample circuit is electrically connected to the input of described signal amplifier, the output of described signal amplifier is electrically connected to described central processing unit, described temperature sensing amplifier is electrically connected to described central processing unit, described switching selects circuit to be connected with the control end of described central processing unit, described the first switching group is connected electrically in described switching and selects between circuit and described the first capacitive compensator, described the second switching group is connected electrically in described switching and selects between circuit and described the second capacitive compensator, described the first switching group and described the second switching group are arranged in parallel, described power-switching circuit is described the first capacitive compensator, the second capacitive compensator, signal sample circuit, signal amplifier, central processing unit, temperature sensing amplifier, the first switching group, the second switching group and switching select circuit that power supply is provided, described the first switching group comprises the first operating passing zero circuit and the second operating passing zero circuit, described the second switching group comprises the 3rd operating passing zero circuit and the 4th operating passing zero circuit, described the first operating passing zero circuit and the second operating passing zero circuit are in parallel, and the output of described the first operating passing zero circuit and the second operating passing zero circuit is all electrically connected to described the first capacitive compensator, described the 3rd operating passing zero circuit and the 4th operating passing zero circuit are in parallel, and the output of described the 3rd operating passing zero circuit and the 4th operating passing zero circuit is all electrically connected to described the second capacitive compensator.
Described the first operating passing zero circuit, the second operating passing zero circuit, the 3rd operating passing zero circuit and the 4th operating passing zero circuit include magnetic latching relay J1, the first controllable silicon SCR 1, the second controllable silicon SCR 2, operating passing zero chip IC, the anode of described the first controllable silicon SCR 1 is connected with the cathodic electricity of described the second controllable silicon SCR 2, the negative electrode of described the first controllable silicon SCR 1 is electrically connected to the anode of described the second controllable silicon SCR 2, and the anode of described the first controllable silicon SCR 1 and negative electrode are electrically connected to respectively on the normally opened contact with magnetic latching relay J1, and described first can chamber silicon SCR1 negative electrode be electrically connected to described the first capacitive compensator, the gate pole of described the first controllable silicon SCR 1 is electrically connected to the first control end of described operating passing zero chip IC, the gate pole of described the second controllable silicon SCR 2 is electrically connected to the second control end of described operating passing zero chip IC.
The model of described operating passing zero chip IC is MOC3083, and described the first capacitive compensator and the second capacitive compensator include reactor L and three-phase capacitor C, and described reactor L connects with three-phase capacitor C.
Described signal sample circuit comprises that model is the current transformer of CT05-1 and the voltage transformer that model is TR3121CH, the model of described signal amplifier is LM224, described current transformer is electrically connected to the 9th pin of described signal amplifier, and described voltage transformer is electrically connected to the second pin of described signal amplifier.
Described temperature sensing amplifier comprises thermistor RT and the first resistance R 1, after described thermistor RT connects with described the first resistance R 1, is electrically connected to the temperature signal input of described central processing unit.
Described switching selects circuit to comprise the first triode Q1, the second triode Q2 and the second resistance R 2, described the first triode Q1, the base stage of the second triode Q2 is electrically connected to the output of described central controller respectively, described the first triode Q1, the equal ground connection of emitter of the second triode Q2, logical the second resistance R 2 and described the first operating passing zero circuit of collector electrode of described the first triode Q1, the second operating passing zero circuit, in the 3rd operating passing zero circuit and the 4th operating passing zero circuit, the input of operating passing zero chip IC is electrically connected to, the collector electrode of described the second triode Q2 and the first operating passing zero circuit, the second operating passing zero circuit, in the 3rd operating passing zero circuit and the 4th operating passing zero circuit, one end of magnetic latching relay J1 is electrically connected to.
The model of described central processing unit is STC12C5A60S2.
Also comprise the RS-485 communication circuit being connected with described central processing unit.
Also comprise the input operation circuit being connected with described central processing unit.
The utlity model has positive effect: of the present utility model simple in structure, be provided with double-throw and cut group and two capacitive compensator, in use can effectively improve switching stability, and be provided with two capacitive compensators, can effectively reduce switching capacitance to a certain extent shoves, improved the useful life of capacitor switching switch contact, simultaneously, adopt double-throw to cut group and two capacitive compensator, in use also can effectively improve to a certain extent the ageing and switching efficiency of switching, and when breaking down, convenient maintenance, applicability is good, owing to thering are two capacitive compensators, effectively raise overvoltage, overcurrent and overheat protector, fitting operation is convenient and swift on the whole, to the personnel of operation, require lower, applied widely, practicality is good.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below, wherein:
Fig. 1 is circuit diagram of the present utility model.
Embodiment
(embodiment 1)
Fig. 1 has shown a kind of embodiment of the present utility model, and wherein Fig. 1 is circuit diagram of the present utility model.
See Fig. 1, Electric capacity compensation device is cut in a kind of double-throw, comprise the first capacitive compensator 1, the second capacitive compensator 2, signal sample circuit 3, signal amplifier 4, central processing unit 5, power-switching circuit 6, temperature sensing amplifier 7, the first switching group 8, the second switching group 9 and switching are selected circuit 10, described signal sample circuit 3 is electrically connected to the input of described signal amplifier 4, the output of described signal amplifier 4 is electrically connected to described central processing unit 5, described temperature sensing amplifier 7 is electrically connected to described central processing unit 5, described switching selects circuit 10 to be connected with the control end of described central processing unit 5, 8 groups of described the first switchings are connected electrically in described switching and select between circuit 10 and described the first capacitive compensator 1, described the second switching group 9 is connected electrically in described switching and selects between circuit 10 and described the second capacitive compensator 2, described the first switching group 8 is arranged in parallel with described the second switching group 9, described power-switching circuit 6 is described the first capacitive compensator 1, the second capacitive compensator 2, signal sample circuit 3, signal amplifier 4, central processing unit 5, temperature sensing amplifier 7, the first switching group 8, the second switching group 9 and switching select circuit 10 that power supply is provided, described the first switching group 8 comprises the first operating passing zero circuit 81 and the second operating passing zero circuit 82, described the second switching group 9 comprises the 3rd operating passing zero circuit 91 and the 4th operating passing zero circuit 92, described the first operating passing zero circuit 81 and the second operating passing zero circuit 82 are in parallel, and the output of described the first operating passing zero circuit 81 and the second operating passing zero circuit 82 is all electrically connected to described the first capacitive compensator 1, described the 3rd operating passing zero circuit 91 and the 4th operating passing zero circuit 92 are in parallel, and the output of described the 3rd operating passing zero circuit 91 and the 4th operating passing zero circuit 92 is all electrically connected to described the second capacitive compensator 2.
Described the first operating passing zero circuit 81, the second operating passing zero circuit 82, the 3rd operating passing zero circuit 91 and the 4th operating passing zero circuit 92 include magnetic latching relay J1, the first controllable silicon SCR 1, the second controllable silicon SCR 2, operating passing zero chip IC, the anode of described the first controllable silicon SCR 1 is connected with the cathodic electricity of described the second controllable silicon SCR 2, the negative electrode of described the first controllable silicon SCR 1 is electrically connected to the anode of described the second controllable silicon SCR 2, and the anode of described the first controllable silicon SCR 1 and negative electrode are electrically connected to respectively on the normally opened contact with magnetic latching relay J1, and described first can chamber silicon SCR1 negative electrode be electrically connected to described the first capacitive compensator 1, the gate pole of described the first controllable silicon SCR 1 is electrically connected to the first control end of described operating passing zero chip IC, the gate pole of described the second controllable silicon SCR 2 is electrically connected to the second control end of described operating passing zero chip IC.
The model of described operating passing zero chip IC is MOC3083, and described the first capacitive compensator 1 and the second capacitive compensator 2 include reactor L and three-phase capacitor C, and described reactor L connects with three-phase capacitor C.
Described signal sample circuit 3 comprises that model is the current transformer 31 of CT05-1 and the voltage transformer 32 that model is TR3121CH, the model of described signal amplifier 4 is LM224, described current transformer 31 is electrically connected to the 9th pin of described signal amplifier 4, and described voltage transformer 32 is electrically connected to the second pin of described signal amplifier 4.
Described temperature sensing amplifier 7 comprises thermistor RT and the first resistance R 1, after described thermistor RT connects with described the first resistance R 1, is electrically connected to the temperature signal input of described central processing unit 5.
Described switching selects circuit 10 to comprise the first triode Q1, the second triode Q2 and the second resistance R 2, described the first triode Q1, the base stage of the second triode Q2 is electrically connected to the output of described central controller respectively, described the first triode Q1, the equal ground connection of emitter of the second triode Q2, logical the second resistance R 2 and described the first operating passing zero circuit of collector electrode of described the first triode Q1, the second operating passing zero circuit, in the 3rd operating passing zero circuit and the 4th operating passing zero circuit, the input of operating passing zero chip IC is electrically connected to, the collector electrode of described the second triode Q2 and the first operating passing zero circuit, the second operating passing zero circuit, in the 3rd operating passing zero circuit and the 4th operating passing zero circuit, one end of magnetic latching relay J1 is electrically connected to.
The model of described central processing unit 5 is STC12C5A60S2.
Also comprise the RS-485 communication circuit 11 being connected with described central processing unit 5.
Also comprise the input operation circuit 12 being connected with described central processing unit 5.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all execution modes.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (10)
1. Electric capacity compensation device is cut in a double-throw, comprise the first capacitive compensator, the second capacitive compensator, signal sample circuit, signal amplifier, central processing unit, power-switching circuit, temperature sensing amplifier, the first switching group, the second switching group and switching are selected circuit, it is characterized in that: described signal sample circuit is electrically connected to the input of described signal amplifier, the output of described signal amplifier is electrically connected to described central processing unit, described temperature sensing amplifier is electrically connected to described central processing unit, described switching selects circuit to be connected with the control end of described central processing unit, described the first switching group is connected electrically in described switching and selects between circuit and described the first capacitive compensator, described the second switching group is connected electrically in described switching and selects between circuit and described the second capacitive compensator, described the first switching group and described the second switching group are arranged in parallel, described power-switching circuit is described the first capacitive compensator, the second capacitive compensator, signal sample circuit, signal amplifier, central processing unit, temperature sensing amplifier, the first switching group, the second switching group and switching select circuit that power supply is provided, described the first switching group comprises the first operating passing zero circuit and the second operating passing zero circuit, described the second switching group comprises the 3rd operating passing zero circuit and the 4th operating passing zero circuit, described the first operating passing zero circuit and the second operating passing zero circuit are in parallel, and the output of described the first operating passing zero circuit and the second operating passing zero circuit is all electrically connected to described the first capacitive compensator, described the 3rd operating passing zero circuit and the 4th operating passing zero circuit are in parallel, and the output of described the 3rd operating passing zero circuit and the 4th operating passing zero circuit is all electrically connected to described the second capacitive compensator.
2. Electric capacity compensation device is cut in double-throw according to claim 1, it is characterized in that: described the first operating passing zero circuit, the second operating passing zero circuit, the 3rd operating passing zero circuit and the 4th operating passing zero circuit include magnetic latching relay J1, the first controllable silicon SCR 1, the second controllable silicon SCR 2, operating passing zero chip IC, the anode of described the first controllable silicon SCR 1 is connected with the cathodic electricity of described the second controllable silicon SCR 2, the negative electrode of described the first controllable silicon SCR 1 is electrically connected to the anode of described the second controllable silicon SCR 2, and the anode of described the first controllable silicon SCR 1 and negative electrode are electrically connected to respectively on the normally opened contact with magnetic latching relay J1, and described first can chamber silicon SCR1 negative electrode be electrically connected to described the first capacitive compensator, the gate pole of described the first controllable silicon SCR 1 is electrically connected to the first control end of described operating passing zero chip IC, the gate pole of described the second controllable silicon SCR 2 is electrically connected to the second control end of described operating passing zero chip IC.
3. Electric capacity compensation device is cut in double-throw according to claim 2, it is characterized in that: the model of described operating passing zero chip IC is MOC3083, described the first capacitive compensator and the second capacitive compensator include reactor L and three-phase capacitor C, and described reactor L connects with three-phase capacitor C.
4. Electric capacity compensation device is cut in double-throw according to claim 3, it is characterized in that: described signal sample circuit comprises that model is the current transformer of CT05-1 and the voltage transformer that model is TR3121CH, the model of described signal amplifier is LM224, described current transformer is electrically connected to the 9th pin of described signal amplifier, and described voltage transformer is electrically connected to the second pin of described signal amplifier.
5. Electric capacity compensation device is cut in double-throw according to claim 4, it is characterized in that: described temperature sensing amplifier comprises thermistor RT and the first resistance R 1, after described thermistor RT connects with described the first resistance R 1, be electrically connected to the temperature signal input of described central processing unit.
6. Electric capacity compensation device is cut in double-throw according to claim 5, it is characterized in that: described switching selects circuit to comprise the first triode Q1, the second triode Q2 and the second resistance R 2, described the first triode Q1, the base stage of the second triode Q2 is electrically connected to the output of described central controller respectively, described the first triode Q1, the equal ground connection of emitter of the second triode Q2, logical the second resistance R 2 and described the first operating passing zero circuit of collector electrode of described the first triode Q1, the second operating passing zero circuit, in the 3rd operating passing zero circuit and the 4th operating passing zero circuit, the input of operating passing zero chip IC is electrically connected to, the collector electrode of described the second triode Q2 and the first operating passing zero circuit, the second operating passing zero circuit, in the 3rd operating passing zero circuit and the 4th operating passing zero circuit, one end of magnetic latching relay J1 is electrically connected to.
7. Electric capacity compensation device is cut in double-throw according to claim 6, it is characterized in that: the model of described central processing unit is STC12C5A60S2.
8. according to the double-throw described in any one in claim 1 to 7, cut Electric capacity compensation device, it is characterized in that: also comprise the RS mono-485 communication circuit that are connected with described central processing unit.
9. according to the double-throw described in any one in claim 1 to 7, cut Electric capacity compensation device, it is characterized in that: also comprise the input operation circuit being connected with described central processing unit.
10. Electric capacity compensation device is cut in double-throw according to claim 8, it is characterized in that: also comprise the input operation circuit being connected with described central processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320659367.5U CN203522205U (en) | 2013-10-25 | 2013-10-25 | Double-switching capacitance compensating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320659367.5U CN203522205U (en) | 2013-10-25 | 2013-10-25 | Double-switching capacitance compensating device |
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| Publication Number | Publication Date |
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| CN203522205U true CN203522205U (en) | 2014-04-02 |
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| CN201320659367.5U Expired - Fee Related CN203522205U (en) | 2013-10-25 | 2013-10-25 | Double-switching capacitance compensating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580037A (en) * | 2013-10-25 | 2014-02-12 | 恒一电气有限公司 | Double-switch capacitance compensation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580037A (en) * | 2013-10-25 | 2014-02-12 | 恒一电气有限公司 | Double-switch capacitance compensation device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325603, Wenzhou City, Zhejiang province Yueqing City North white elephant town Baita Wang Industrial Zone Patentee after: HENGYI ELECTRIC GROUP CO., LTD. Address before: 325603, Wenzhou City, Zhejiang province Yueqing City North white elephant town Baita Wang Industrial Zone Patentee before: Hengyi Electrical Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20201025 |