CN101526403B - Measurement device for temperature and current of high voltage line - Google Patents
Measurement device for temperature and current of high voltage line Download PDFInfo
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- CN101526403B CN101526403B CN2009100614572A CN200910061457A CN101526403B CN 101526403 B CN101526403 B CN 101526403B CN 2009100614572 A CN2009100614572 A CN 2009100614572A CN 200910061457 A CN200910061457 A CN 200910061457A CN 101526403 B CN101526403 B CN 101526403B
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Abstract
The invention discloses a measurement device for temperature and current of high voltage lines. An on-line system temperature pickup is connected with an input interface of a singlechip I by a digital temperature pickup arranged on the high voltage line and via a lighting protection isolating circuit, an electric current sensor unit is connected with an input end of the singlechip I by a current transformator arranged on the high-voltage line and sequentially via the lighting protection isolating circuit, an impedance converter, a low pass filter, a multiplexing/sampling hold circuit, an output end of the singlechip I is respectively connected with a high frequency signal sending module and an GPRS signal sending module, a land station system comprises a high frequency signal receiving module and an GPRS signal receiving module which are corresponding to the on-line system and respectively connected with the singlechip II of the land system. The device can monitor the running state ofa high voltage overhead line in real time and has the advantages of high precision, saving manpower, real time monitoring without being affected by weather.
Description
Technical field
The present invention relates to a kind of high-tension line temperature, current measuring device.
Background technology
Power circuit administrative authority is an indispensable job to the thermometric work of the operation lead of transmission line of electricity, prior art all adopts infrared thermometer, the tester carries out thermometric, record with infrared test equipment aligning transmission line of electricity point under tower, analyze then, have low precision, be subjected to climate effect, waste of manpower, can not monitor shortcoming such as in time pinpoint the problems in real time.The research of external associated mechanisms is thought: make full use of the temperature ability to bear of lead and with reference to line design carrying capacity, can improve considerable electric power resource carrying capacity, the transmission line of electricity resource can be improved 5%-15% effectively, particularly in peak times of power consumption, can effectively alleviate the deficiency of electric power supply, a kind of the high-tension overhead line operation conditions be carried out real-time device for monitoring so press for.
Summary of the invention
The purpose of this invention is to provide a kind of high-tension line temperature, current measuring device.
Purpose of the present invention is achieved through the following technical solutions: a kind of high-tension line temperature, current measuring device, form by inline system and earth station system, inline system comprises the temperature sensor unit, the current sensor unit, the temperature sensor unit is connected with single-chip microcomputer I input interface by the lightning protection buffer circuit by the digital temperature sensor that is installed on the high-tension line, the current sensor unit is by being installed in current transformer on the high-tension line in proper order by the lightning protection buffer circuit, impedance transformer, low-pass filter, multipath conversion/sampling hold circuit and AD translation circuit are connected with single-chip microcomputer I input end, single-chip microcomputer I output terminal is connected with the GPRS signal transmitting module with the high-frequency signal sending module respectively, earth station system comprises high-frequency signal receiver module corresponding with high-frequency signal sending module and GPRS signal transmitting module and GPRS signal receiving module, and the high-frequency signal receiver module is connected with the single-chip microcomputer II input end of ground system respectively with the GPRS signal receiving module.
Above-mentioned high-tension line temperature, current measuring device, inline system also is provided with high pressure power taking voltage stabilizing current limliting unit, high pressure power taking voltage stabilizing current limliting unit is connected impedance transformer, rectification circuit, clamp circuit, mu balanced circuit and filtering circuit successively by the conventional connected mode of current transformer by intermodule that is installed on the high-tension line, be connected with accumulator by diode, accumulator is connected with each module of current sensor unit by conventional connected mode again.
Above-mentioned high-tension line temperature, current measuring device also are provided with charging device, and the charging device input end is connected with the clamp circuit output terminal, and the charging device output terminal is connected with the CUP power input.
Because adopt said structure, the present invention can monitor in real time to the high-tension overhead line operation conditions, has the advantage of precision height, weatherproof, saving manpower, real-time monitoring.
Description of drawings
Fig. 1 is principle of the invention figure.
The double accompanying drawing that makes an abstract of Fig. 1 wherein.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
As shown in the figure, a kind of high-tension line temperature, current measuring device, form by inline system and earth station system, inline system comprises the temperature sensor unit, the current sensor unit, the temperature sensor unit is connected with single-chip microcomputer I input interface by the lightning protection buffer circuit by the digital temperature sensor that is installed on the high-tension line, the current sensor unit is by being installed in current transformer on the high-tension line in proper order by the lightning protection buffer circuit, impedance transformer, low-pass filter, multipath conversion/sampling hold circuit and AD translation circuit are connected with single-chip microcomputer I input end, single-chip microcomputer I output terminal is connected with the GPRS signal transmitting module with the high-frequency signal sending module respectively, inline system also is provided with high pressure power taking voltage stabilizing current limliting unit, and high pressure power taking voltage stabilizing current limliting unit is by the current transformer order and the impedance transformer that are installed on the high-tension line, rectification circuit, clamp circuit, mu balanced circuit is connected with filtering circuit.High pressure power taking voltage stabilizing current limliting unit also is provided with charging device, the charging device input end is connected with the clamp circuit output terminal, the charging device output terminal is connected with single-chip microcomputer I power input, earth station system comprises high-frequency signal receiver module corresponding with high-frequency signal sending module and GPRS signal transmitting module and GPRS signal receiving module, and the high-frequency signal receiver module is connected with the II input end of ground system respectively with the GPRS signal receiving module.
Digital temperature sensor is selected LM135 for use, its measurement range is-55 ℃～+ 200 ℃, it is LMKK-Y that current transformer is selected model for use, measurement range is 10～500A, the AD transducer is selected the integrated circuit of MSP430F1132 for use, uses inner 10 bit digital AD conversion modules that the analog signal conversion on the circuit is digital signal.Charging device is made of the lithium battery of charging module and 4.2V, the model that charging module is selected for use is BQ2057, internal resistance that can dynamic compensation lithium battery group is to reduce the duration of charging, have optional battery temperature monitoring, utilize battery pack temperature sensor continuous detecting battery temperature, BQ2057 closes battery charge when battery temperature exceeds setting range, has automatically characteristics such as charging again, minimum current termination charging, low-power consumption sleep.The model that single-chip microcomputer I selects for use is MSC1200, and its function is finished data acquisition, storage, conversion and the input and output of inline system by software.The model that the high-frequency signal sending module is selected for use is SRWF-501-50, and the model that the GPRS signal transmitting module is selected for use is Q2406B, and two modules receive the mode of the data of system by unlimited high frequency and note or bluetooth and send thus.The lightning protection buffer circuit is made up of TVS, voltage dependent resistor (VDR), finishes that signal line carries out lightning protection in the total system.TVS is a kind of high-effect protection device of diode form, and the voltage clamp that makes two interpolars is protected the precision components in the electronic circuit effectively in a predetermined value, avoids the damage of various surge pulses.Voltage dependent resistor (VDR) can suppress the frequent abnormal overvoltage that occurs in the circuit, and holding circuit is avoided superpotential infringement.Single-chip microcomputer II adopts 32 ARM nuclears of PHILIPS high-performance.
Claims (2)
1. high-tension line temperature, current measuring device, form by inline system and earth station system, it is characterized in that: inline system comprises the temperature sensor unit, the current sensor unit, the temperature sensor unit is connected with single-chip microcomputer I input interface by the lightning protection buffer circuit by the digital temperature sensor that is installed on the high-tension line, the current sensor unit is by being installed in current transformer on the high-tension line in proper order by the lightning protection buffer circuit, impedance transformer, low-pass filter, multipath conversion/sampling hold circuit and AD translation circuit are connected with single-chip microcomputer I input end, single-chip microcomputer I output terminal is connected with the GPRS signal transmitting module with the high-frequency signal sending module respectively, earth station system comprises high-frequency signal receiver module corresponding with high-frequency signal sending module and GPRS signal transmitting module and GPRS signal receiving module, the high-frequency signal receiver module is connected with the single-chip microcomputer II input end of ground system respectively with the GPRS signal receiving module, inline system also is provided with high pressure power taking voltage stabilizing current limliting unit, high pressure power taking voltage stabilizing current limliting unit passes through the conventional connected mode of intermodule with impedance transformer by the current transformer that is installed on the high-tension line, rectification circuit, clamp circuit, mu balanced circuit is connected successively with filtering circuit, be connected with accumulator by diode, accumulator is connected with each module of current sensor unit by conventional connected mode again.
2. high-tension line temperature according to claim 1, current measuring device, it is characterized in that: high pressure power taking voltage stabilizing current limliting unit also is provided with charging device, the charging device input end is connected with the clamp circuit output terminal, and the charging device output terminal is connected with the CUP power input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100614572A CN101526403B (en) | 2009-04-07 | 2009-04-07 | Measurement device for temperature and current of high voltage line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100614572A CN101526403B (en) | 2009-04-07 | 2009-04-07 | Measurement device for temperature and current of high voltage line |
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| Publication Number | Publication Date |
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| CN101526403A CN101526403A (en) | 2009-09-09 |
| CN101526403B true CN101526403B (en) | 2011-07-20 |
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| CN2009100614572A Expired - Fee Related CN101526403B (en) | 2009-04-07 | 2009-04-07 | Measurement device for temperature and current of high voltage line |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102243285B (en) * | 2011-05-06 | 2013-09-11 | 厦门Abb开关有限公司 | Fault detection apparatus based on temperature and current analyses, and method thereof |
| CN103856882A (en) * | 2012-12-03 | 2014-06-11 | 国家电网公司 | Transmission method and device for overhead earth wire hanging and disassembly information and processing system for overhead earth wire hanging and disassembly information |
| CN103346516B (en) * | 2013-06-20 | 2015-09-09 | 上海波汇通信科技有限公司 | A kind of analog conducting wire loop apparatus of high-tension electricity overhead wire |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413201Y (en) * | 2009-04-07 | 2010-02-24 | 湖北亿立能科技有限公司 | Temperature and current measuring unit for high-voltage line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201413201Y (en) * | 2009-04-07 | 2010-02-24 | 湖北亿立能科技有限公司 | Temperature and current measuring unit for high-voltage line |
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