CN203117362U - Single-phase fault recording device used for overhead line - Google Patents
Single-phase fault recording device used for overhead line Download PDFInfo
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- CN203117362U CN203117362U CN 201220721883 CN201220721883U CN203117362U CN 203117362 U CN203117362 U CN 203117362U CN 201220721883 CN201220721883 CN 201220721883 CN 201220721883 U CN201220721883 U CN 201220721883U CN 203117362 U CN203117362 U CN 203117362U
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Abstract
The utility model discloses a single-phase fault recording device used for an overhead line. The single-phase fault recording device used for the overhead line includes a collecting module, a signal converting module, a control chip, a CPU, a radio frequency communication chip and a power source module used for providing working power source. The collecting module is connected with the control chip through the signal converting module. The control chip is connected with the CPU and the radio frequency communication chip respectively. The power source module provides power for modules and the chip of the single-phase fault recording device used for the overhead line. The collecting module collects high voltage signals of the overhead line and converts the signals to small signals through the signal converting circuit. The small signals are transmitted to the CPU through the control chip for collection, recording and fault analysis. Fault signals are sent by the CPU and are transmitted to the radio frequency communication chip through the control of the control chip and fault information is reported to a main station through the radio frequency communication chip. The single-phase fault recording device used for the overhead line provided by the utility model can be used for the collection, the recording and fault analysis of the high-voltage signals of the overhead line automatically and can report the fault information to the main station automatically.
Description
Technical field
The utility model relates to the failure detector of distribution line, particularly a kind of single-phase fault wave recording device for overhead transmission line.
Background technology
Along with the continuous increase of current supply load, the branch of distribution line is also increasing, and line construction also becomes increasingly complex.If the distribution overhead transmission line breaks down, the frequent investigation of the method by artificial line walking fault, it is very difficult to search concrete trouble spot, and power supply reliability can't be protected.
Present fault detector function ratio is more single, and fault detector the action after, still need manually to carry out the inspection of fault, exist many deficiencies on the function.The active that can not realize failure message reports, if adopt FTU to carry out fault detect and location, the cost of input again can be very huge, therefore never has a kind of cost-effective method and promoted.
The utility model content
Technical problem to be solved in the utility model just provides a kind of single-phase fault wave recording device for overhead transmission line, can gather, record ripple and fault analysis to the high-voltage signal of overhead transmission line automatically, and initiatively with fault information reporting to main website.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of single-phase fault wave recording device for overhead transmission line, it is characterized in that: comprise the acquisition module for the single-phase high voltage signal of gathering overhead transmission line, be used for high-voltage signal is converted to the signal conversion module of small-signal, be used for the mutual control chip that transmits of control information, be used for small-signal is gathered the CPU that the record secondary failure is judged, be used for the radio-frequency communication chip of the fault information reporting main website of overhead transmission line and be used for providing the power module of working power, described sampling module links to each other with control chip through signal conversion circuit, described control chip links to each other with the radio-frequency communication chip with CPU respectively, and described power module provides power supply for module and the chip of described single-phase fault wave recording device; Described sampling module is gathered the high-voltage signal of overhead transmission line, be converted to small-signal by signal conversion circuit, this small-signal is passed to CPU by control chip control and gathers record ripple and fault analysis, send fault-signal and be passed to the radio-frequency communication chip through control chip control by CPU, by the radio-frequency communication chip with fault information reporting to main website.
Control chip described in the utility model, CPU and radio-frequency communication chip all have the spi bus interface, and described control chip is connected with radio-frequency communication chip both-way communication with CPU respectively through spi bus, carry out the corresponding function action to accept master information.
Compared with prior art, the utility model technology has following beneficial effect:
(1) the utility model can be recorded ripple and fault analysis to the overhead transmission line small-signal that institute gathers and changes automatically by CPU, and with fault information reporting to main website, can find concrete trouble spot, reduce artificial line walking cost, also ensure power supply reliability simultaneously;
(2) the utility model by each module and chip simple realization the fault detect of overhead transmission line, with low cost, be easy to promote the use of.
Description of drawings
Fig. 1 is connection diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
A kind of single-phase fault wave recording device for overhead transmission line as shown in Figure 1, comprise the acquisition module for the single-phase high voltage signal of gathering overhead transmission line, be used for high-voltage signal is converted to the signal conversion module of small-signal, be used for the mutual control chip that transmits of control information, be used for small-signal is gathered the CPU that the record secondary failure is judged, be used for the radio-frequency communication chip of the fault information reporting main website of overhead transmission line and be used for providing the power module of working power, sampling module links to each other with control chip through signal conversion circuit, control chip links to each other with the radio-frequency communication chip with CPU respectively, and power module provides power supply for module and the chip of single-phase fault wave recording device; Sampling module is gathered the high-voltage signal of overhead transmission line, be converted to small-signal by signal conversion circuit, this small-signal is passed to CPU by control chip control and gathers record ripple and fault analysis, send fault-signal and be passed to the radio-frequency communication chip through control chip control by CPU, by the radio-frequency communication chip with fault information reporting to main website.
Wherein, control chip, CPU and radio-frequency communication chip all have the spi bus interface, and the spi bus interface comprises status register, radio frequency chip configuration register, sends address register, transmitting data register and receive data register.Control chip is connected with radio-frequency communication chip both-way communication with CPU respectively through spi bus, carries out the corresponding function action to accept master information.
Present embodiment also be provided with the chip (not shown) that resets, the chip that resets is connected with control chip, is used for resetting control chip.The model that control chip adopts is SIF921, and this control chip has the spi bus interface of standard, can carry out serial communication with CPU easily; The radio-frequency communication chip adopts SI4432, and this radio-frequency communication chip power-consumption is low, can self-defined route and frequency of operation when carrying out secondary development; Power module has independently power management function, can guarantee that voltage fluctuation is for the minimum that influences of communication module.
The control chip of present embodiment is responsible for the control of whole apparatus module, comprises automatic route, carries out information interaction, carries out information interaction, transmits message etc. by spi bus with the radio-frequency communication chip by serial ports with CPU.
The radio-frequency communication chip will report main website by fault displacement information and the address information on the overhead transmission line after the cpu fault analysis, and receive the information that main website sends, and pass to control chip, cooperate CPU to finish various other functions by control chip.The radio-frequency communication chip mainly is made up of frequency synthesizer, receiving demodulation device, power amplifier etc., uses the SPI interface to communicate by letter with CPU, and configuration is convenient, and power consumption is very low, fully satisfies the condition of work of single-phase fault wave recording device.
On the one hand, the mutual inductor that present embodiment single-phase fault wave recording device utilizes acquisition module and signal conversion module to form is converted to small-signal to high-voltage signal, by the A/D modular converter of CPU inside small-signal is gathered then, acquisition mode is the time rate of change of judging current signal; On the other hand, CPU links to each other with the radio-frequency communication chip, can finish the active reporting functions of information, namely when current break (fault) has taken place on the overhead transmission line, CPU trigger circuit in the CPU will wake the CPU that is in dormant state up, begin to carry out collection and the record ripple of signal, and the signal after the conversion of signal conversion module is carried out the AD conversion, when line fault judge to take place, then the displacement signal is encoded and initiatively report main website by be passed to radio-frequency communication module by control chip control.
Embodiment of the present utility model is not limited thereto; according to foregoing of the present utility model; utilize ordinary skill knowledge and the customary means of this area; do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite; the utility model can also be made modification, replacement or the change of other various ways, all drops within the utility model rights protection scope.
Claims (2)
1. single-phase fault wave recording device that is used for overhead transmission line, it is characterized in that: comprise the acquisition module for the single-phase high voltage signal of gathering overhead transmission line, be used for high-voltage signal is converted to the signal conversion module of small-signal, be used for the mutual control chip that transmits of control information, be used for small-signal is gathered the CPU that the record secondary failure is judged, be used for the radio-frequency communication chip of the fault information reporting main website of overhead transmission line and be used for providing the power module of working power, described sampling module links to each other with control chip through signal conversion circuit, described control chip links to each other with the radio-frequency communication chip with CPU respectively, and described power module provides power supply for module and the chip of described single-phase fault wave recording device; Described sampling module is gathered the high-voltage signal of overhead transmission line, be converted to small-signal by signal conversion circuit, this small-signal is passed to CPU by control chip control and gathers record ripple and fault analysis, send fault-signal and be passed to the radio-frequency communication chip through control chip control by CPU, by the radio-frequency communication chip with fault information reporting to main website.
2. the single-phase fault wave recording device for overhead transmission line according to claim 1, it is characterized in that: described control chip, CPU and radio-frequency communication chip all have the spi bus interface, and described control chip is connected with radio-frequency communication chip both-way communication with CPU respectively through spi bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220721883 CN203117362U (en) | 2012-12-24 | 2012-12-24 | Single-phase fault recording device used for overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220721883 CN203117362U (en) | 2012-12-24 | 2012-12-24 | Single-phase fault recording device used for overhead line |
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| Publication Number | Publication Date |
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| CN203117362U true CN203117362U (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220721883 Expired - Lifetime CN203117362U (en) | 2012-12-24 | 2012-12-24 | Single-phase fault recording device used for overhead line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616617A (en) * | 2013-12-10 | 2014-03-05 | 国网上海市电力公司 | Electric power automation communication monitor system |
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2012
- 2012-12-24 CN CN 201220721883 patent/CN203117362U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616617A (en) * | 2013-12-10 | 2014-03-05 | 国网上海市电力公司 | Electric power automation communication monitor system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
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| CX01 | Expiry of patent term |