CN201075641Y - High tension transmission line warning equipment - Google Patents
High tension transmission line warning equipment Download PDFInfo
- Publication number
- CN201075641Y CN201075641Y CNU2007201717233U CN200720171723U CN201075641Y CN 201075641 Y CN201075641 Y CN 201075641Y CN U2007201717233 U CNU2007201717233 U CN U2007201717233U CN 200720171723 U CN200720171723 U CN 200720171723U CN 201075641 Y CN201075641 Y CN 201075641Y
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- China
- Prior art keywords
- voltage
- led display
- power
- circuit
- transmission line
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- Expired - Fee Related
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses a high-voltage transmission circuit caution device which is fixedly arranged on a high-voltage transmission circuit, comprising an LED display screen and a current transformer. The electricity is obtained from the high-voltage transmission circuit through the current transformer, and a power source module in the caution device is supplied with the electricity. The voltage which is taken from the high-voltage transmission circuit by the current transformer is stabilized by the power source module and outputted to a control module. The LED display screen is controlled to stay at the cut-out state by day and at the open state at night through the control module, the scintillation condition of the LED display screen at the open state is also controlled by the control module. Compared with the prior art, the utility model supplies the electricity for the caution device through the continuous electricity-obtaining technology, achieves the LED display screen of high light on displaying the caution color at night through the control module, and has the effective function of caution at night by ensuring the LED display screen to blink with certain interval, thus avoiding accidents effectively.
Description
Technical field:
The utility model relates to ultra-high-tension power transmission line safety, particularly a kind of ultra-high-tension power transmission line attention device that can serve as warning at night.
Background technology:
China is vast in territory, power circuit distributes very wide, wherein based on high pressure overhead power line, extensively be dispersed throughout ground such as city, rural area, intermountain and river, usually cross over traffic route (bridge, highway, railway etc.), building, airport, construction site etc., but there is potential danger in high pressure overhead power line when bringing electric energy to us.As airport, construction site and other places because at night or look under the situation of thing inconvenience, usually can occur because of touching ultra-high-tension power transmission line, and cause the consequence of serious accident.
Wherein, circuit lacks caution, and equipment technology lags behind, and is the major reason that causes the high pressure accident to take place frequently.For fear of cause casualties because of touching transmission line, faults such as property loss and power failure, the general employing is installed in method on the transmission line wire with luminous element, to reach the effect of caution.Factors such as and the luminous element of warning usefulness here generally adopts filament to make, and, useful life low owing to its luminous intensity is short, and can't be widely used.
Summary of the invention:
In order to address the above problem, the purpose of this utility model is to provide a kind of ultra-high-tension power transmission line attention device, this attention device utilizes LED as display, have advantages such as luminous intensity height, long service life, the red warning mark of flicker can be demonstrated at night, the generation of power grid security accident can be effectively prevented and reduce.
For achieving the above object, the utility model is mainly by the following technical solutions:
A kind of ultra-high-tension power transmission line attention device, it is fixedly mounted on the high-voltage power line conductive line, includes a LED display and a current transformer, by the power taking from the high-voltage power line conductive line of this current transformer, and is power module power supply in the attention device;
One power module, this power module are taken from the high-voltage power line conductive line with current transformer and are powered on and compress into capable voltage stabilizing and handle, and export to control module;
One control module is in off state by day by this control module may command LED display, is in open mode evening, and the flicker situation of control LED display when open mode.
Described power module mainly is made up of rectification circuit, filter circuit and voltage stabilizing circuit three parts.
Described control module is made up of photoelectric current control circuit, single sudden strain of a muscle control circuit and MOSFET current amplification circuit.
Described LED display is made up of the connection in series-parallel of a plurality of LED dot matrix.
The utility model provides working power from the lead power taking for product by current transformer, is applicable to the transmission line of 10kV～1000kV, and does not influence the line security operation.Warning lamp be opened or be closed to the utility model also can automatically according to ambient brightness in addition, and adopt caution look the existing with the caution ultra-high-tension power transmission line of flicker.The utility model is closed demonstration by day automatically, opens automatically night to show, and glimmers with 0.5 second speed.
Description of drawings:
Fig. 1 is installed in the view of ultra-high-tension power transmission line for the utility model.
Fig. 2 is the circuit theory diagrams of the utility model power module.
Fig. 3 is the utility model control module flicker control circuit schematic diagram.
Fig. 4 is the utility model control module light control circuit schematic diagram.
Embodiment:
Below in conjunction with the drawings and specific embodiments the utility model is described in further details.
A kind of ultra-high-tension power transmission line attention device described in the utility model mainly is installed on the ultra-high-tension power transmission line, and by the ultra-high-tension power transmission line power supply, to produce alarm signal.
As shown in Figure 1, attention device 1 front is a LED display, the upper end is provided with wire clamp 5 and box unshakable in one's determination 4, wherein attention device 1 is fixedly mounted on the high voltage electricity transmission conductive wire 3 by wire clamp 5, and be connected with lead 3 by box 4 unshakable in one's determination, be provided with current transformer in the box 4 wherein unshakable in one's determination, can be by this current transformer from power taking on the lead 3, and be attention device 1 power supply.
Include the power module that is connected with current transformer in the attention device 1, this power module is mainly used in the voltage that will take from the lead 3 and carries out the voltage stabilizing processing, and the normal voltage of attention device 1 work is satisfied in output.Wherein power module mainly is made up of rectification circuit, filter circuit and voltage stabilizing circuit three parts, at first the alternating current taken from the lead 3 of current transformer is converted into direct current through after the rectification circuit rectification, though this moment, the direct current direction of output was single, among size (current strength) still is in and constantly changes.This pulsating direct current generally can not directly be used for to attention device 1 power supply.To become the level and smooth direct current of waveform to pulsating direct current, also need filtering.By filter circuit, can the fluctuation composition in the output voltage in the rectification circuit be reduced as much as possible, be transformed near permanent steady direct current, at last through voltage stabilizing circuit output burning voltage and constant electric current.
Below in conjunction with Fig. 2 the circuit theory of power module is described, the ac input end of power circuit at first through first order protective circuit P1100EC silicon protection tube, second level protective circuit by the Transient Suppression Diode of two parallel connections constitute, first order LC filter circuit; Main voltage stabilizing circuit provides the frequency of switch by the SA555 chip, constitutes benchmark, sampling, FM circuit.
First order voltage stabilizing circuit constitutes monostable trigger power connection moment by SA555N, circuit has a stable process, power supply charges to capacitor C 1 by resistance R 7, when Uc rises to 2/3Vcc, trigger reset, Uo is the conducting of low level chip internal discharge tube this moment, capacitor discharge, and circuit enters stable state.Chip output this moment Uo is that low level makes the triode conducting, triggers the adjustment pipe and closes.And the TRIG pin of trigger input chip applies triggering signal≤1/3Vcc, and trigger overturns, and circuit enters temporary stable state, and Uo is output as high level, and discharge tube ends.Chip output this moment Uo is that high level makes the power adjustment pipe conducting.After this capacitor C charging, circuit has the upset of generation Uo to be output as low level during to Uc=1/3Vcc, the discharge tube conducting, capacitor discharge, circuit returns to stable state.Uc rises to time of 2/3Vcc, the i.e. output pulse width of Uo from zero level; Tw=R7*C1*ln3=1.1R7*C1.This time can be from several microseconds by several minutes, and precision can reach 0.1%.Thereby so around this principle adjust the frequency adjustment output voltage that pipe can be controlled its switch by the pulsation triggering of Uo.
Output+12V voltage after the first order voltage stabilizing is the power supply of second level voltage-stabilizing system.
Second level voltage stabilizing circuit is made of LM2577-ADJ, output+30VDC.
Maximum output load current=2.1A*Vin/Vout
Wherein: Vin is an input voltage, and Vout is an output voltage
Output voltage=1.23* (1+R1/R2) is wherein: 1.23 is the chip reference voltage
R1, R2 are sampling resistor
Dmax＝(Vout+Vf-Vin)/(Vout+Vf-0.6)
Wherein: Dmax is a maximum duty cycle, and Vout is an output voltage, and Vin is an input voltage
Vf is a diode drop
Lmin=6.4* (Vin-0.6) * (2Dmax-1)/(1-Dmax) uH of unit
Wherein: Lmin is the inductance minimum value, and Vin is an input voltage, and Dmax is a maximum duty cycle
Wherein two diodes in the circuit design for preventing the capacitor discharge defective chip.
As shown in Figure 3, control module flicker control circuit principle is as follows: flashing function can select with wire jumper, if jump onto wire jumper, 555 output perseverance is a high level.Not conducting of metal-oxide-semiconductor Q1 among Fig. 4, no-voltage output.As wire jumper not, blinker is controlled by 555 output signal.Control the frequency that LED flashes by 555 timers
As shown in Figure 4, brightness on daytime is greater than to a certain degree the time, and it is lower that photodiode D10 is the low resistive state current potential, and triode metal-oxide-semiconductor Q2 is ended, and LED is not luminous.At night, brightness is less than to a certain degree the time, and photodiode D10 resistance rises, and makes metal-oxide-semiconductor Q2 conducting, and LED lights.Wherein potentiometer is the brightness selection element of realizing early morning or realizing switch transition at dusk.
The LED display part is made up of the super bright Φ 10LED of 10 * 25 connection in series-parallel dot matrix, and the rated voltage electric current of each LED is respectively 3V/20mA.
The utility model is got the working power that the energy technology provides product by lead, installs and uses simple, reliable operation, non-maintaining throughout one's life.Be applicable to that 10kV～750kV transmission line uses, do not influence the line security operation.Can open or close warning lamp automatically according to ambient brightness.Adopt the long-life, the LED luminescent device of high brightness is warned the existence of circuit with the caution look of flicker.It is big to be suitable for the voltage/current scope.Adopt heatproof design, water proof and dust proof designing technique, can guarantee equipment operation steady in a long-term.Hanging over for a long time on the lead, is online continuous power taking technology; The aerial high-voltage power transmission line attention device has the power greater than 30 watts when opening; The aerial high-voltage power transmission line attention device is closed demonstration daytime automatically, opens automatically night to show, and glimmers with 1 second speed.
More than a kind of ultra-high-tension power transmission line attention device provided by the utility model is described in detail, used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (3)
1. ultra-high-tension power transmission line attention device, it is fixedly mounted on the high-voltage power line conductive line, includes LED display, it is characterized in that also including:
One current transformer by the power taking from the high-voltage power line conductive line of this current transformer, and is power module power supply in the attention device;
One power module, the voltage that this power module is taken from current transformer on the high-voltage power line conductive line carries out the voltage stabilizing processing, and exports to control module;
One control module is in off state by day by this control module may command LED display, is in open mode evening, and the flicker situation of control LED display when open mode.
2. ultra-high-tension power transmission line attention device according to claim 1 is characterized in that: described power module mainly is made up of rectification circuit, filter circuit and voltage stabilizing circuit three parts.
3. ultra-high-tension power transmission line attention device according to claim 1 is characterized in that: described control module is made up of photoelectric current control circuit, single sudden strain of a muscle control circuit and MOSFET current amplification circuit.4, ultra-high-tension power transmission line attention device according to claim 1 is characterized in that: described LED display is made up of the connection in series-parallel of a plurality of LED dot matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201717233U CN201075641Y (en) | 2007-09-07 | 2007-09-07 | High tension transmission line warning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201717233U CN201075641Y (en) | 2007-09-07 | 2007-09-07 | High tension transmission line warning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075641Y true CN201075641Y (en) | 2008-06-18 |
Family
ID=39520898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201717233U Expired - Fee Related CN201075641Y (en) | 2007-09-07 | 2007-09-07 | High tension transmission line warning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075641Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353829A (en) * | 2011-06-07 | 2012-02-15 | 郑霞 | Warning system for high-tension wire derrick |
| CN104751595A (en) * | 2015-03-30 | 2015-07-01 | 国网上海市电力公司 | Device for warning power transmission line to be damaged by external force |
| CN109030902A (en) * | 2018-08-17 | 2018-12-18 | 国网山东省电力公司烟台供电公司 | A kind of current transformer |
| CN111654002A (en) * | 2020-06-04 | 2020-09-11 | 重庆电力高等专科学校 | High tension transmission line attention device |
-
2007
- 2007-09-07 CN CNU2007201717233U patent/CN201075641Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353829A (en) * | 2011-06-07 | 2012-02-15 | 郑霞 | Warning system for high-tension wire derrick |
| CN104751595A (en) * | 2015-03-30 | 2015-07-01 | 国网上海市电力公司 | Device for warning power transmission line to be damaged by external force |
| CN109030902A (en) * | 2018-08-17 | 2018-12-18 | 国网山东省电力公司烟台供电公司 | A kind of current transformer |
| CN109030902B (en) * | 2018-08-17 | 2021-01-15 | 国网山东省电力公司烟台供电公司 | Current transformer |
| CN111654002A (en) * | 2020-06-04 | 2020-09-11 | 重庆电力高等专科学校 | High tension transmission line attention device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20120907 |