CN204495892U - Power transmission line lightning shielding pressure measuring system - Google Patents
Power transmission line lightning shielding pressure measuring system Download PDFInfo
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- CN204495892U CN204495892U CN201520022361.6U CN201520022361U CN204495892U CN 204495892 U CN204495892 U CN 204495892U CN 201520022361 U CN201520022361 U CN 201520022361U CN 204495892 U CN204495892 U CN 204495892U
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Abstract
A kind of power transmission line lightning shielding pressure measuring system that the utility model provides, comprise the lightning voltage sensor for detecting lightning voltage, the processing module be connected with described lightning voltage sensor output and Surveillance center, described processing module is connected by wireless transport module and carries out data interaction; Described processing module comprises the signal conditioning circuit, amplifying circuit, filtering circuit, threshold compataror and the signal acquisition circuit that connect successively, the input end of described signal conditioning circuit is connected with lightning voltage sensor, and the output terminal of described signal acquisition circuit is connected with described wireless transport module; Can carry out monitoring accurately in real time to lightning voltage, guarantee the accuracy of testing result, and the impact that can effectively avoid environmental factor to cause, and use cost is low, is beneficial to and uses on a large scale.
Description
Technical field
The utility model relates to power domain, particularly relates to a kind of power transmission line lightning shielding pressure measuring system.
Background technology
Transmission line of electricity is long to be set up in physical environment, the impact of the extraneous factor such as to be easily struck by lightning, in prior art, measurement for parameter of lightning strike mainly contains two kinds of modes: remote measurement and directly measurement, wherein remote measurement is by lightening detection antenna detection parameter of lightning strike, but this mode principle accident spot, the electromagnetic wave that thunder and lightning produces affects by factors such as weather, landform and buildingss in communication process, there is more serious decay and dispersion in the electromagnetic wave therefore causing thunder and lightning to produce, and then causes final measurement result inaccurate; And the mode directly measured generally adopts mounting magnetic steel rod on the shaft tower of transmission line of electricity, have the lightning current flowing through magnetic link to monitor parameter of lightning strike, the advantage of this mode is that cost is low, is convenient to a large amount of installation, but the error of its measurement result is large.
Therefore, need to propose a kind of new power transmission line lightning shielding pressure measuring system, can carry out monitoring accurately in real time to lightning voltage, guarantee the accuracy of testing result, and the impact that can effectively avoid environmental factor to cause, and use cost is low, is beneficial to and uses on a large scale.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of power transmission line lightning shielding pressure measuring system, can carry out monitoring accurately in real time to lightning voltage, guarantee the accuracy of testing result, and the impact that can effectively avoid environmental factor to cause, and use cost is low, is beneficial to and uses on a large scale.
A kind of power transmission line lightning shielding pressure measuring system that the utility model provides, comprise the lightning voltage sensor for detecting lightning voltage, the processing module be connected with described lightning voltage sensor output and Surveillance center, described processing module is connected by wireless transport module and carries out data interaction;
Described processing module comprises the signal conditioning circuit, amplifying circuit, filtering circuit, threshold compataror and the signal acquisition circuit that connect successively, the input end of described signal conditioning circuit is connected with lightning voltage sensor, and the output terminal of described signal acquisition circuit is connected with described wireless transport module.
Further, described lightning voltage sensor at least comprises the first copper band and the second copper band, and described second copper band is coaxially fixedly installed in the first copper band, connects between described first copper band and the second copper band by detecting resistance.
Further, the inner side of described first copper band and the inner side of the second copper band are provided with epoxy resin separation layer, and the connecting link that described first copper band and the second copper band are made by insulating material is fixedly connected with.
Further, the thickness sum of described first copper band and epoxy resin separation layer is 5cm, and the thickness sum of the second copper band and epoxy resin separation layer is 2cm, and the internal diameter of described first copper band is 18-20cm.
Further, described amplifying circuit is differential wave amplifying circuit.
Further, the clock circuit that described signal acquisition circuit comprises the analog to digital conversion circuit be connected with the output terminal of described threshold compataror, the central processing circuit be connected with the output terminal of analog-digital conversion circuit as described and is connected with described central processing circuit, described central processing circuit is connected with wireless transport module.
Further, described wireless transport module is the one in ethernet module, 3G module, 4G module or GPRS module.
The beneficial effects of the utility model: the utility model can carry out monitoring accurately in real time to lightning voltage, guarantees the accuracy of testing result, and the impact that can effectively avoid environmental factor to cause, and use cost is low, is beneficial to and uses on a large scale.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is theory diagram of the present utility model.
Fig. 2 is the structural representation of the utility model lightning voltage sensor.
Fig. 3 is the schematic diagram of differential amplifier circuit of the present utility model.
Embodiment
Fig. 1 is theory diagram of the present utility model, Fig. 2 is the structural representation of lightning voltage sensor of the present utility model, Fig. 3 is the schematic diagram of differential amplifier circuit of the present utility model, as shown in the figure, a kind of power transmission line lightning shielding pressure measuring system that the utility model provides, comprise the lightning voltage sensor for detecting lightning voltage, the processing module be connected with described lightning voltage sensor output and Surveillance center, described processing module is connected by wireless transport module and carries out data interaction;
Described processing module comprises the signal conditioning circuit connected successively, amplifying circuit, filtering circuit, threshold compataror and signal acquisition circuit, the input end of described signal conditioning circuit is connected with lightning voltage sensor, the output terminal of described signal acquisition circuit is connected with described wireless transport module, wherein, lightning voltage sensor detects the voltage that thunderbolt produces, then by being sent to Surveillance center after processing module process, can carry out monitoring accurately in real time to lightning voltage, guarantee the accuracy of testing result, and the impact that can effectively avoid environmental factor to cause, and use cost is low, be beneficial to and use on a large scale, wherein, described amplifying circuit is differential wave amplifying circuit, wherein, signal conditioning circuit carries out high-pass filtering to the lightning voltage signal gathered, the low flat undesired signal of filtering, threshold compataror is for proposing spike surge voltage in lightning voltage signal and too low thunderbolt voltage does not have informative voltage, ensure that the thunderbolt voltage of certain limit passes through, can cross and good protection is carried out to subsequent conditioning circuit, and data accurately, the lightning voltage signal that referential is strong.
In the present embodiment, described lightning voltage sensor at least comprises the first copper band 1 and the second copper band 3, described second copper band 3 is coaxially fixedly installed in the first copper band 1, connect by detecting resistance between described first copper band 1 and the second copper band 3, by this structure, first copper band and the second copper band form two electrodes, when thunderbolt occurs in the ground near test line or circuit, induced charge is produced last time at the first copper band and the second copper band, by detecting resistance by after two copper bands connections, the induced charge produced produces pressure drop on resistance, now, the difference output of potential difference (PD) as sensor at resistance two ends will be detected, and output to Surveillance center by follow-up processing module and carry out monitoring and record, when mounted, be installed on detected shaft tower or transmission line of electricity by the guide rod through the second copper band.
In the present embodiment, the inner side of described first copper band 1 and the inner side of the second copper band 3 are provided with epoxy resin separation layer 2, wherein, also the effect regulating sensor surrounding electric field is played the while that epoxy resin separation layer being passive, highfield is concentrated on and has in the epoxy mount of very high critical electric field strength, thus reduce the impact of external electrical field, finally reach the object improving whole sensor insulating capacity, also reduce the output power of sensor simultaneously, the requirement that double measurement device miniwatt drives can be met; The connecting link 4 that described first copper band 1 and the second copper band 3 are made by insulating material is fixedly connected with, and insulating material adopts epoxy resin equally, and position can be made between the first copper band and the second copper band to keep stable, thus to ensure in sensor equalizing charge not.
In the present embodiment, the thickness sum of described first copper band 1 and epoxy resin separation layer 3 is 5cm, the thickness sum of the second copper band 3 and epoxy resin separation layer 2 is 2cm, the internal diameter of described first copper band 1 is 18-20cm, the internal diameter of the second copper band 3 is 10-12cm, adopt this structure, can ensure that sensor can accurate detection lightning voltage, and be convenient to install sensor.
In the present embodiment, described signal acquisition circuit comprises the analog to digital conversion circuit be connected with the output terminal of described threshold compataror, the central processing circuit be connected with the output terminal of analog-digital conversion circuit as described and the clock circuit be connected with described central processing circuit, described central processing circuit is connected with wireless transport module, while lightning voltage is transferred to central processing circuit, central processing circuit obtains current temporal information, and when lightning voltage sensor non-output signal, central processing circuit obtains the temporal information terminated, and lightning voltage information and temporal information are sent to Surveillance center in the lump, thus can while accurate measurements parameter of lightning strike and recording time information, reference frame accurately can be provided for the security of operation of transmission line of electricity, wherein, central processing circuit adopts existing single-chip microcomputer or integrated chip.
In the present embodiment, described wireless transport module is the one in ethernet module, 3G module, 4G module or GPRS module, by this structure, real-time for Monitoring Data can be transferred to Surveillance center, by Surveillance center to thunder and lightning to CG lightning density, dodge the lightning parameter information such as frequency and carry out analyzing and processing, and the high cost that connection can be avoided to bring, is easy to promote, and uses substantially not affected by environment.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (7)
1. a power transmission line lightning shielding pressure measuring system, it is characterized in that: comprise the lightning voltage sensor for detecting lightning voltage, the processing module be connected with described lightning voltage sensor output and Surveillance center, described processing module is connected by wireless transport module and carries out data interaction;
Described processing module comprises the signal conditioning circuit, amplifying circuit, filtering circuit, threshold compataror and the signal acquisition circuit that connect successively, the input end of described signal conditioning circuit is connected with lightning voltage sensor, and the output terminal of described signal acquisition circuit is connected with described wireless transport module.
2. power transmission line lightning shielding presses measuring system according to claim 1, it is characterized in that: described lightning voltage sensor at least comprises the first copper band and the second copper band, described second copper band is coaxially fixedly installed in the first copper band, connects between described first copper band and the second copper band by detecting resistance.
3. power transmission line lightning shielding presses measuring system according to claim 2, it is characterized in that: the inner side of described first copper band and the inner side of the second copper band are provided with epoxy resin separation layer, and the connecting link that described first copper band and the second copper band are made by insulating material is fixedly connected with.
4. power transmission line lightning shielding presses measuring system according to claim 3, it is characterized in that: the thickness sum of described first copper band and epoxy resin separation layer is 5cm, the thickness sum of the second copper band and epoxy resin separation layer is 2cm, and the internal diameter of described first copper band is 18-20cm.
5. power transmission line lightning shielding presses measuring system according to claim 1, it is characterized in that: described amplifying circuit is differential wave amplifying circuit.
6. power transmission line lightning shielding presses measuring system according to claim 1, it is characterized in that: the clock circuit that described signal acquisition circuit comprises the analog to digital conversion circuit be connected with the output terminal of described threshold compataror, the central processing circuit be connected with the output terminal of analog-digital conversion circuit as described and is connected with described central processing circuit, described central processing circuit is connected with wireless transport module.
7. power transmission line lightning shielding pressure measuring system according to claim 1 or 6, is characterized in that: described wireless transport module is the one in ethernet module, 3G module, 4G module or GPRS module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022361.6U CN204495892U (en) | 2015-01-13 | 2015-01-13 | Power transmission line lightning shielding pressure measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520022361.6U CN204495892U (en) | 2015-01-13 | 2015-01-13 | Power transmission line lightning shielding pressure measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204495892U true CN204495892U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520022361.6U Expired - Fee Related CN204495892U (en) | 2015-01-13 | 2015-01-13 | Power transmission line lightning shielding pressure measuring system |
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| Country | Link |
|---|---|
| CN (1) | CN204495892U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319065A (en) * | 2015-10-27 | 2016-02-10 | 刘志海 | Clutch safety monitoring system based on GPRS network |
| CN105606873A (en) * | 2016-01-25 | 2016-05-25 | 长沙群瑞电子科技有限公司 | Ultrahigh voltage transmission line side peak voltage wireless monitoring apparatus |
| CN107727918A (en) * | 2017-11-10 | 2018-02-23 | 安徽徽远成电气科技股份有限公司 | High-tension transmission circuit thunder and lightning detecting system |
-
2015
- 2015-01-13 CN CN201520022361.6U patent/CN204495892U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319065A (en) * | 2015-10-27 | 2016-02-10 | 刘志海 | Clutch safety monitoring system based on GPRS network |
| CN105606873A (en) * | 2016-01-25 | 2016-05-25 | 长沙群瑞电子科技有限公司 | Ultrahigh voltage transmission line side peak voltage wireless monitoring apparatus |
| CN107727918A (en) * | 2017-11-10 | 2018-02-23 | 安徽徽远成电气科技股份有限公司 | High-tension transmission circuit thunder and lightning detecting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20160113 |