CN102004192A - Load early-warning device for a power distribution grid - Google Patents
Load early-warning device for a power distribution grid Download PDFInfo
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- CN102004192A CN102004192A CN 201010514377 CN201010514377A CN102004192A CN 102004192 A CN102004192 A CN 102004192A CN 201010514377 CN201010514377 CN 201010514377 CN 201010514377 A CN201010514377 A CN 201010514377A CN 102004192 A CN102004192 A CN 102004192A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 claims description 7
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
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Abstract
The invention provides a load early-warning device for a power distribution grid. The load early-warning device comprises a load monitoring module, an emitter, a terminal receiver and a background processor connected with the terminal receiver, wherein, the load monitoring module comprises a mutual inductor and a temperature sensor which are arranged at the low-voltage side of a transformer; the mutual inductor is connected with a load measuring module; the temperature sensor is connected with a temperature measuring module; and the load measuring module and the temperature measuring module are connected with the emitter through a data converter. In the invention, the unbalance rate of three-phase load is dynamically calculated through the load monitoring module, and voltage fluctuation is recorded in full time by monitoring voltage in real time. The load early-warning device provides long-term early warning and short-term early warning for the problems of the three-phase load such as the unbalance rate, low voltage, overload and the like, thus providing an effective early-warning technical means for a power distribution operator.
Description
Technical field
The present invention relates to a kind of electric load early warning system, particularly a kind of power distribution station load prior-warning device.
Background technology
Inclement weather is more and more in recent years, winter cold extreme weather and the hot weather in summer increase, and temperature surpasses historical extreme value often, living standards of the people improve a lot in addition, people use high-power electric appliances such as air-conditioning, warmer to increase, cause the power distribution station residential electricity consumption to be multiplied, the residential electricity consumption load often becomes explosive growth, distribution the operations staff often be taken by surprise, cause device damage, low-voltage, influence people's lives more, cause huge social pressures to power supply enterprise simultaneously.Power distribution station of the prior art does not have this type of load early warning system in real time, and the distribution operations staff lacks effective early warning technology means, and manpower is limited, and the manual patrol frequency can't adapt to the situation that present resident loads and increases sharply.
Summary of the invention
Technical matters to be solved by this invention is at the deficiencies in the prior art, and a kind of power distribution station load prior-warning device that can effectively monitor problems such as three-phase load unbalance factor in the power distribution station, real-time voltage situation of change, overload is provided.
Technical matters to be solved by this invention is to realize by following technical scheme, a kind of power distribution station load prior-warning device, be characterized in: comprise load monitoring module, transmitter, terminal receiver and the background processor that is connected with the terminal receiver, described load monitoring module comprises mutual inductor and the temperature sensor that is located at step down side, mutual inductor and load measurement module are joined, temperature sensor and temperature-measuring module join, and load measurement module links to each other with transmitter by data converter with temperature-measuring module.
Technical matters to be solved by this invention is to realize by following technical scheme, and described load monitoring module is provided with the solar panel power supply.
Three-phase load, real-time voltage situation of change and three-phase temperature conditions that mutual inductor and the temperature sensor of the present invention by the load monitoring module detects step down side respectively, data converter is transferred to background processor with various digital signals by transmitter again.By the unbalance factor of load monitoring module dynamic calculation three-phase load, set the unbalance factor limit value according to the long-time running experience, provide foundation and early warning in time adjusting three-phase load; By full-time of real-time monitoring voltage the voltage fluctuation record is carried out early warning to low-voltage, for the new load of going up provides foundation.Compared with prior art it is reasonable in design, and is simple in structure, easy to use, effectively detect the load condition of power distribution station, to problems such as three-phase load unbalance factor, low-voltage, overloads, provide long-term early warning and short-term to report to the police, for the distribution operations staff provides effective early warning technology means.
Description of drawings
Fig. 1 is the block diagram of load monitoring module of the present invention.
Embodiment
A kind of power distribution station load prior-warning device, comprise load monitoring module, transmitter 6, terminal receiver and the background processor that is connected with the terminal receiver, described load monitoring module comprises mutual inductor 1 and the temperature sensor 2 that is located at step down side, mutual inductor 1 joins with load measurement module 3, temperature sensor 2 joins with temperature-measuring module 4, and load measurement module 3 links to each other with transmitter 6 by data converter 5 with temperature-measuring module 4.The load monitoring module is powered by solar panel.
The mutual inductor 1 of load monitoring module and temperature sensor 2 detect three-phase load, real-time voltage situation of change and the three-phase temperature conditions of step down side respectively during enforcement.Mutual inductor 1 is mainly used to sensor transformer low-pressure side three-phase load situation, comprises electric current and information of voltage, gives load measurement module 3 with the three-phase load information transmission simultaneously.Temperature sensor 2 is mainly used to measuring transformer low-pressure side three-phase temperature, again the three-phase temperature information is transferred to temperature-measuring module 4.Data converter 5 is the digital signal that transmitter 6 can be accepted with various conversion of signals, and transmitter 6 amplifies the background processor that is transferred to the connection of terminal receiver with digital signal again.
The major function of background processor has, and utilizes the professional software platform to set up the concrete data of each bar 10kV circuit.Utilize the signal of terminal receiver transmission to show the operation conditions of the power distribution station transformer of each bar circuit, comprise every phase voltage, electric current, temperature.The temperature alarming scope is set, in time sends sound after the warning, and show in main interface prompt; Three-phase current unbalance rate alarm range is set, sends sound after the warning, and show in main interface prompt; The voltage alarm scope is set, in time sends sound after the warning, and show in main interface prompt.The software of background processor possesses main interface functions such as data statistics, report printing, current curve, voltage curve, temperature curve, network chart, tidal current chart, geographic map, primary equipment figure, and the main information of each power distribution station transformer can reflect in detail by primary equipment figure.
Claims (2)
1. power distribution station load prior-warning device, it is characterized in that: comprise load monitoring module, transmitter, terminal receiver and the background processor that is connected with the terminal receiver, described load monitoring module comprises mutual inductor and the temperature sensor that is located at step down side, mutual inductor and load measurement module are joined, temperature sensor and temperature-measuring module join, and load measurement module links to each other with transmitter by data converter with temperature-measuring module.
2. power distribution station according to claim 1 load prior-warning device, it is characterized in that: described load monitoring module is provided with the solar panel power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010514377 CN102004192A (en) | 2010-10-21 | 2010-10-21 | Load early-warning device for a power distribution grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010514377 CN102004192A (en) | 2010-10-21 | 2010-10-21 | Load early-warning device for a power distribution grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102004192A true CN102004192A (en) | 2011-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010514377 Pending CN102004192A (en) | 2010-10-21 | 2010-10-21 | Load early-warning device for a power distribution grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102004192A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336247A (en) * | 2019-08-14 | 2019-10-15 | 张增禄 | A kind of method for protecting transformer holds control device and protection system |
-
2010
- 2010-10-21 CN CN 201010514377 patent/CN102004192A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336247A (en) * | 2019-08-14 | 2019-10-15 | 张增禄 | A kind of method for protecting transformer holds control device and protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER COMPANY STATE GRID CORPORAT Effective date: 20121220 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121220 Address after: 222000 No. 13 happy road, Sinpo District, Jiangsu, Lianyungang Applicant after: Lianyungang Power Supply Company of Jiangsu Electric Power Company Applicant after: Jiangsu Electric Power Company Applicant after: State Grid Corporation of China Address before: 222000 No. 13 happy road, Sinpo District, Jiangsu, Lianyungang Applicant before: Lianyungang Power Supply Company of Jiangsu Electric Power Company |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110406 |