CN202076800U - Power factor compensating device - Google Patents
Power factor compensating device Download PDFInfo
- Publication number
- CN202076800U CN202076800U CN 201020619422 CN201020619422U CN202076800U CN 202076800 U CN202076800 U CN 202076800U CN 201020619422 CN201020619422 CN 201020619422 CN 201020619422 U CN201020619422 U CN 201020619422U CN 202076800 U CN202076800 U CN 202076800U
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- module
- power
- power factor
- compensating device
- acquisition module
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- 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 - Lifetime
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- 230000001939 inductive effect Effects 0.000 abstract description 5
- 238000004870 electrical engineering Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000005070 sampling Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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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 relates to a power factor compensating device, which belongs to the technical field of electrical engineering. The existing inductive load in the power grid needs to absorb both active power and reactive power from a power system. The power factor compensating device comprises a power source and fault self-checking module, a voltage acquisition module, a current acquisition module, an analog/digital conversion module, a central processing module and a compensation module. The power factor compensating device is capable of automatically acquiring relative data of the power grid and detecting whether the power factor is within a qualified range or not, and accordingly the compensating device is automatically regulated to lead the power factor to be in the qualified range, and economical operation of the power grid is guaranteed.
Description
Technical field
The utility model relates to a kind of power factor compensation device, belongs to the electrical engineering technical field.
Background technology
Electric load in the electrical network such as motor, transformer, fluorescent lamp and arc furnace etc. belong to the inductive load mostly, and these inductive equipment not only need to absorb active power to electric power system in running, also the while absorbing reactive power.Therefore after in electrical network, the shunt capacitor reactive-load compensation equipment being installed, the reactive power that inductive load consumed that can afford redress, the reactive power that has reduced that electric network source side direction inductive load provides and carried by circuit.Reduced reactive power flowing in electrical network, can reduce transformer and the electric energy loss of bus because of carrying reactive power to cause in the electric line, this measure is called power factor compensation.
Summary of the invention
The purpose of this utility model is exactly in order to reduce reactive power flowing in electrical network, thereby reduces transformer and the electric energy loss of bus because of carrying reactive power to cause in the electric line.
The technical solution of the utility model is that a kind of power factor compensation device comprises: power supply and fault self-checking module, voltage acquisition module, the current acquisition module, analog-to-digital converting module, central processing module, compensating module, it is characterized in that its power supply and fault self-checking module are connected with voltage transformer secondary side and other module, its voltage acquisition module is connected with voltage transformer secondary side, its current acquisition module is connected with the Current Transformer Secondary side, analog-to-digital converting module and voltage acquisition module and current acquisition module, central processing module is connected, and compensating module is connected with central processing module.
The beneficial effects of the utility model are: can gather the related data of electrical network automatically, whether the measured power factor is at acceptability limit, thereby the automatic switching compensation equipment makes it reach acceptability limit, guarantees economy operation of power grid.
Description of drawings
Fig. 1 is the principle schematic of the utility model embodiment.
Embodiment
With reference to accompanying drawing 1, power supply of the present utility model and fault self-checking module can be electronic component provides electric power; Voltage acquisition module can be obtained real-time voltage signal and transfer phase line voltage sampling to by rectification circuit and integrating circuit from the electric power phase line; A current acquisition module can be obtained real-time current signal and transfer the phase line current sampling signal to by rectification circuit and integrating circuit from the electric power phase line; Analog-to-digital converting module, it is converted to described phase line voltage sampling and described phase line current sampling signal respectively and each self-corresponding frequency signal output; Central processing module is made up of microprocessor, display unit, storage element, communication unit, it is converted to corresponding real-time magnitude of voltage and current value respectively with described frequency signal, and calculate active power, reactive power and power factor value, when described power factor value is lower than predetermined threshold value, the output control signal; Compensating module, it receives the control signal of described central processing module, realizes the power factor compensation to the electric power phase line.
In addition to the implementation, the utility model can also have other execution mode.All employings are equal to the technical scheme of replacement or equivalent transformation form, all drop on the protection range of the utility model requirement.
Claims (1)
1. power factor compensation device, comprise power supply and fault self-checking module, voltage acquisition module, the current acquisition module, analog-to-digital converting module, central processing module, compensating module, it is characterized in that its power supply and fault self-checking module are connected with voltage transformer secondary side and other module, its voltage acquisition module is connected with voltage transformer secondary side, its current acquisition module is connected with the Current Transformer Secondary side, analog-to-digital converting module and voltage acquisition module and current acquisition module, central processing module is connected, and compensating module is connected with central processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020619422 CN202076800U (en) | 2010-11-23 | 2010-11-23 | Power factor compensating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020619422 CN202076800U (en) | 2010-11-23 | 2010-11-23 | Power factor compensating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202076800U true CN202076800U (en) | 2011-12-14 |
Family
ID=45114877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020619422 Expired - Lifetime CN202076800U (en) | 2010-11-23 | 2010-11-23 | Power factor compensating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202076800U (en) |
-
2010
- 2010-11-23 CN CN 201020619422 patent/CN202076800U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER COMPANY BINHAI COUNTY POWER Effective date: 20131018 Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: BINHAI COUNTY POWER SUPPLY COMPANY, JIANGSU ELECTRIC POWER CO., LTD. Effective date: 20131018 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 224500 YANCHENG, JIANGSU PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131018 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Jiangsu Electric Power Company Patentee after: Binhai County Power Supply Company, Jiangsu Electric Power Co. Address before: 224500 Jiangsu Province, Yancheng City Binhai County East Fukang Road No. 3 Patentee before: Binhai County Power Supply Company, Jiangsu Electric Power Co. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |
|
| CX01 | Expiry of patent term |