CN202759248U - Display device of low voltage reactive power compensation module - Google Patents
Display device of low voltage reactive power compensation module Download PDFInfo
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- CN202759248U CN202759248U CN 201220392656 CN201220392656U CN202759248U CN 202759248 U CN202759248 U CN 202759248U CN 201220392656 CN201220392656 CN 201220392656 CN 201220392656 U CN201220392656 U CN 201220392656U CN 202759248 U CN202759248 U CN 202759248U
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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 provides a display device of a low voltage reactive power compensation module, which belongs to the field of power and electronic technologies. The display device of the low voltage reactive power compensation module solves the problems of complicated structure and poor integrity of the display device in the prior arts. The device comprises an intelligent capacitor, a signal processing circuit which is used for receiving an input power supply signal for processing and for carrying out output, and a controller which is used for receiving the power supply signal output and processed by the signal processing circuit for analyzing and processing and for outputting a control signal. The controller is connected with the intelligent capacitor. The controller is further connected with a first display module which is used for displaying the voltage signal of the power supply signal, a second display module which is used for displaying a power supply power factor signal and a third display module which is used for displaying the working state of the intelligent capacitor. The first display module, the second display module and the third display module are integrated in a display. According to the device, the required information is integrated in the display for display, thus the connection structure of the device is simplified and the integrity of the device is strong.
Description
Technical field
The utility model belongs to electric and electronic technical field, relates to a kind of display unit of low-pressure reactive compensation module.
Background technology
Develop rapidly along with China's modern industry process, huge variation has occured in electric network composition, extensive use in view of a large amount of nonlinear loads (power electronics such as rectifier, frequency converter, Switching Power Supply), so that the harmonic wave in the electrical network exists in a large number, harmonic wave is more and more serious on the impact of the quality of power supply.AC electric power systems needs power supply that two parts energy is provided, and a part is used for acting and is consumed, and this part energy is referred to as reactive power.Owing to have a large amount of perceptual load or burden without work such as motor, transformer in the power electronic system, and the idle a large amount of reactive powers of absorption that suit the requirements of these perception are set up induced field, so that power factor descends, line loss increases, quality of voltage descends, and utilization rate of equipment and installations is low, is the unwanted losses of lagging reactive power generation in the elimination system, and reach the active power maximization, then need to carry out reactive power compensation.Reactive power compensation can be stablized the voltage of receiving end and electrical network, improve power supply quality, improve the stability of a system, increase the transmittability of electrical network, improve utilization rate of equipment and installations, compensating power, improve the power factor of electric power system and load, reduce equipment heating, prolong its useful life, improve utilization rate of electrical, reduce the business electrical cost.
The low-pressure reactive compensation module has been widely used in the middle of the industrial production, and existing low-pressure reactive compensation module when work needs voltmeter and power factor meter measurement to show job information, the voltage measurement change over switch is controlled break-make, the components and parts that controller need to connect are a lot, and, many Capacity controls, the indicator light of electric capacity is pointed out its operating state, need a large amount of wiring controls, therefore, existing display unit, complex structure, globality is relatively poor.
Summary of the invention
There are the problems referred to above in the utility model for existing technology, a kind of display unit of low-pressure reactive compensation module has been proposed, the display unit of this low-pressure reactive compensation module is integrated in required information in the display and shows, simplified the syndeton of device, made the device globality stronger.
The utility model is realized by following technical proposal: a kind of display unit of low-pressure reactive compensation module, comprise Intelligent capacitor and the signal processing circuit of processing and exporting for the power supply signal that receives input, it is characterized in that, the display unit of described low-pressure reactive compensation module comprises that also the power supply signal after processing for receive signal processing circuit output carries out analyzing and processing and exports the controller of control signal, described controller is connected with Intelligent capacitor, described controller also is connected with the display module one for the voltage signal of display power supply signal, for the display module two of display power supply power factor signal with for the display module three that shows the intelligent capacitor operating state, described display module one, display module two and display module three are integrated in the middle of the display.
When low-pressure reactive compensation module access power supply signal, power supply signal is exported to controller after signal processing circuit is processed, output voltage signal shows in display to display signal after the processing carries out analyzing and processing in controller after, calculates power factor and export to display by the power supply signal after processing simultaneously to show in display; Controller also is connected with Intelligent capacitor, and controller receives the working state signal of Intelligent capacitor, and exports to display after this signal processed, and shows the operating state of Intelligent capacitor in display.
In the display unit of above-mentioned low-pressure reactive compensation module, described signal processing circuit comprises the current transformer for the treatment of the input current signal size, for the treatment of the voltage transformer of input voltage signal size and be used for that received current instrument transformer and voltage transformer are processed rear signal and this signal is further processed after output signal to the integrating amplification circuit of controller, described current transformer is connected with integrating amplification circuit with voltage transformer and is connected, described current transformer and voltage transformer are in parallel, and described integrating amplification circuit connects the input of controller.Controller has received treated power supply signal, and collection analysis has gone out voltage signal and the current signal in the power supply signal, goes out power factor and the output of power supply signal by computational analysis.
In the display unit of above-mentioned low-pressure reactive compensation module, described controller also is connected with for the power circuit to the controller power supply, described power circuit comprises rectification circuit and reduction voltage circuit, described rectification circuit is connected with reduction voltage circuit, and described reduction voltage circuit is connected with the power input mouth of controller.Controller needs the DC low-voltage Power supply, therefore external power supply rectification and step-down need to be powered.
In the display unit of above-mentioned low-pressure reactive compensation module, described rectification circuit and electric power incoming line interface are connected with fuse.Fuse can prevent that overload from burning out components and parts.
In the display unit of above-mentioned low-pressure reactive compensation module, described controller connects several Intelligent capacitors, and is parallel with one another between described several Intelligent capacitors.Display can show the operating state of a plurality of electric capacity, has more practicality.
Compared with prior art, the display unit of this low-pressure reactive compensation module has following advantage: 1, needed information is concentrated in the display and show, simplify the structure, improved practicality; 2, be provided with fuse, can protect components and parts to prevent overload.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure, 1, Intelligent capacitor; 2, controller; 3, signal processing circuit; 3a, current transformer; 3b, voltage transformer; 3c, integrating amplification circuit; 4, display; 4a, display module one; 4b, display module two; 4c, display module three; 5, power circuit; 5a, rectification circuit; 5b, reduction voltage circuit.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1; a kind of display unit of low-pressure reactive compensation module; comprise several Intelligent capacitors in parallel 1; be used for the controller 2 that signal after receive signal processing circuit 3 outputs are processed carries out analyzing and processing and exports control signal; the current signal that be used for to receive input is processed and the signal processing circuit 3 of output signal and be used for showing the display 4 of low-pressure reactive compensation module job information; signal processing circuit 3 comprises the current transformer 3a for the treatment of the input current signal size; for the treatment of the voltage transformer 3b of input voltage signal size with for received current instrument transformer 3a; signal is further processed and exports signal after the processing to the integrating amplification circuit 3c of controller 2 to this signal after processing with voltage transformer 3b; current transformer 3a is connected with integrating amplification circuit 3c with voltage transformer 3b and is connected; voltage transformer 3b summation current transformer 3a is in parallel; integrating amplification circuit 3c connects the input of controller 2; the input of several Intelligent capacitors in parallel 1 and controller 2 and output are connected respectively; the output of controller 2 is connected with display module one 4a for the voltage signal of display power supply signal; for the display module 4b of display power supply power factor signal with for display module three 4c that show the intelligent capacitor operating state; display module one 4a; display module 4b and display module three 4c are integrated in the middle of the display 4; display module one 4a is arranged on the first row of display 4; display module 4b is arranged on the second row of display 4; display module three 4c are arranged on the third line of display 4; the power input mouth of controller 2 is connected with power circuit 5; power circuit 5 comprises rectification circuit 5a and reduction voltage circuit 5b; rectification circuit 5a is connected with reduction voltage circuit 5b; reduction voltage circuit 5b is connected with the power input mouth of controller 2; power circuit 5 gives controller 2 power supplies; controller 2 needs low-voltage dc power supply; then need the access power supply is carried out rectification and step-down; rectification circuit 5 a and electric power incoming line interface are connected with fuse; fuse can prevent overload, the protection components and parts.
When low-pressure reactive compensation module access power supply signal, power supply signal is exported to the integration amplified current after signal voltage instrument transformer 3b summation current transformer 3a processes, integrating amplification circuit 3c carries out the integration amplification and exports to controller 2 power supply signal after processing, controller 2 has received the power supply signal after finishing dealing with, and carry out after the analyzing and processing voltage signal of power supply exported to display module one 4a in the display 4, the voltage signal of the first row display power supply in display 4, also gathered the current signal of power supply signal with Time Controller 2, the power factor that calculates power supply signal by voltage signal and the current signal of collection in inside, and export to display module two 4b in the display 4, power factor at the second row display power supply signal of display 4, controller 2 is connected with several Intelligent capacitors 1, the operating state of controller 2 output control signal control Intelligent capacitors 1, receive the working state signal of Intelligent capacitor 1 feedback with Time Controller 2, and signal exported to display module three 4c in the display 4, the operating state that shows several Intelligent capacitors 1 at the third line of display 4, this display unit has been replaced the circuit of a plurality of voltmeters and power factor meter measurement by a display 4, simplified the wiring construction of whole device, make the globality of device stronger, more practical.
Claims (5)
1. the display unit of a low-pressure reactive compensation module, comprise Intelligent capacitor (1) and the signal processing circuit (3) of processing and exporting for the current signal that receives input, it is characterized in that, the display unit of described low-pressure reactive compensation module comprises that also the signal after processing for receive signal processing circuit (3) output carries out analyzing and processing and exports the controller (2) of control signal, described controller (2) is connected with Intelligent capacitor (1), described controller also is connected with the display module one (4a) for the voltage signal of display power supply signal, for the display module two (4b) of display power supply power factor signal with for the display module three (4c) that shows the intelligent capacitor operating state, described display module one (4a), display module two (4b) and display module three (4c) are integrated in the middle of the display (4).
2. the display unit of low-pressure reactive compensation module according to claim 1, it is characterized in that, described signal processing circuit (3) comprises the current transformer (3a) for the treatment of the input current signal size, this signal is further processed and exports to the integrating amplification circuit (3c) of controller (2) for the treatment of the voltage transformer (3b) of input voltage signal size with for received current instrument transformer (3a) and the rear signal of voltage transformer (3b) processing, described current transformer (3a) is connected 3b with voltage transformer) be connected with integrating amplification circuit (3c) respectively, described current transformer (3a) and voltage transformer (3b) parallel connection, described integrating amplification circuit (3c) connects the input of controller (2).
3. the display unit of low-pressure reactive compensation module according to claim 1 and 2, it is characterized in that, described controller (2) also is connected with for the power circuit (5) to controller (2) power supply, described power circuit (5) comprises rectification circuit (5a) and reduction voltage circuit (5b), described rectification circuit (5a) is connected with reduction voltage circuit (5b), and described reduction voltage circuit (5b) is connected with the power input mouth of controller (2).
4. the display unit of low-pressure reactive compensation module according to claim 3 is characterized in that, described rectification circuit (5a) is connected with fuse with the electric power incoming line interface.
5. the display unit of low-pressure reactive compensation module according to claim 4 is characterized in that, described controller (2) connects several Intelligent capacitors (1), and is parallel with one another between described several Intelligent capacitors (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392656 CN202759248U (en) | 2012-08-09 | 2012-08-09 | Display device of low voltage reactive power compensation module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392656 CN202759248U (en) | 2012-08-09 | 2012-08-09 | Display device of low voltage reactive power compensation module |
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| Publication Number | Publication Date |
|---|---|
| CN202759248U true CN202759248U (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220392656 Expired - Lifetime CN202759248U (en) | 2012-08-09 | 2012-08-09 | Display device of low voltage reactive power compensation module |
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| CN (1) | CN202759248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375492A (en) * | 2015-11-24 | 2016-03-02 | 苏州科技学院 | Power factor compensation and correction device for power distribution of green building |
-
2012
- 2012-08-09 CN CN 201220392656 patent/CN202759248U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375492A (en) * | 2015-11-24 | 2016-03-02 | 苏州科技学院 | Power factor compensation and correction device for power distribution of green building |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |