A kind of line fault on-line monitoring system
Technical field
This utility model relates to technical field of electric power, particularly relates to a kind of line fault on-line monitoring system.
Background technology
Electrical network the most faulty, generation of singlephase earth fault in the middle of the process of transmission of electricity.When line fault occurs, generally
Use on-the-spot manual detection method to search the abort situation of circuit, i.e. utilize instrument below lines branch and below circuit, to carry out event
Barrier judges, this method not only bothers, and the most.
In prior art, disclosing a kind of overhead type earth-fault indicator, this indicator can show rapidly fault
There is position, thus improve the reliability of supply line.But this indicator needs testing staff with the naked eye to fault detector
Testing result observe, the artificial testing result gathering fault detector, inefficiency, and observation effect easily receive existing
The impact of field surrounding enviroment, such as, rainwater weather.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of line fault on-line monitoring system, to solve existing skill
The artificial testing result gathering fault detector of overhead type earth-fault indicator needs existing for art, inefficiency, and
The problem that observation effect easily receives the impact of on-the-spot surrounding enviroment.
For solving above-mentioned technical problem, this utility model embodiment provides a kind of line fault on-line monitoring system, including:
The signal source being arranged on distribution line and signal detection module, wireless radio frequency modules, wireless transport module, Surveillance center services
Device and monitoring terminal;
Described signal source, is used for judging whether distribution line occurs singlephase earth fault, the most then note in earth-return circuit
Enter characteristic current signal, when the signal detection module being arranged on distribution line detects described characteristic current signal, carry out
Alarm prompt;
Described signal detection module, is used for detecting whether described distribution line breaks down, when described distribution wire being detected
Time breaking down in road, output fault message is to described wireless radio frequency modules, and described fault message includes: described fault bit confidence
Breath;
Described wireless radio frequency modules, passes through described wireless transport module for the fault message exported by signal detection module
Transmission is to monitoring central server;
Described monitoring central server, is used for receiving described fault message, is additionally operable to store described signal detection module
Installation site figure;
Described monitoring terminal, for obtaining installation site figure and the fault message of the storage of described monitoring central server,
And show failure identification at the described abort situation in described installation site figure.
Further, described signal detection module includes: processor and multiple detector;
Described detector, for detecting the current signal on distribution wire circuit and voltage signal;
Described processor, judges this detector for the current signal according to each described detector feedback and voltage signal
Whether position breaks down.
Further, each described detector includes: current transformer, high pass filter, voltage transformer and low pass filtered
Ripple device;
Described current transformer is connected with described processor by described high pass filter;
Described voltage transformer is connected with described processor by described low pass filter.
Further, described signal detection module also includes: for the reset circuit of the described processor state information that resets,
It is connected with described processor.
Further, described monitoring central server also includes: short message transceiving module;Described system also includes: note is received
Transmitting apparatus;
Described short message transceiving module, for sending described fault message to described short message transceiving device.
Further, described monitoring terminal includes: for pointing out the alarm module of described fault message.
Further, described monitoring terminal includes: hand-held mobile terminal and microcomputer monitoring terminal.
Further, described system also includes: big solar panel and Sunny energy cell panel;
The power supply outfan of described Sunny energy cell panel is connected with the energization input of described signal detection module.
The power supply outfan of described big solar panel is connected with the energization input of described wireless transport module.
Further, described system also includes: accumulator and backup battery;
The power supply outfan of described accumulator is connected with the energization input of described wireless transport module.
The power supply outfan of described backup battery is connected with the energization input of described signal detection module.Further,
Described wireless transport module is: wireless GSM transport module.
Having the beneficial effect that of technique scheme of the present utility model:
In such scheme, detect whether distribution line breaks down, if detecting by signal source and signal detection module
When described distribution line breaks down, export fault message;And pass sequentially through wireless radio frequency modules, wireless transport module by described
Transmitting fault information, to monitoring central server, is received described fault message by monitoring central server, and stores described signal
The installation site figure of detection module, finally, the installation site figure stored according to described monitoring central server and fault message,
Show failure identification at described abort situation in described installation site figure, and present to line upkeep people by monitoring terminal
Member.As such, it is possible to fault message to be passed to indoor from outdoor, and on monitoring terminal, show the position of the circuit broken down
Put, thus substantially reduce the time of line attendant artificial acquisition testing module test result, improve circuit dimension
Protect the work efficiency of personnel.
Accompanying drawing explanation
The structural representation one of the line fault on-line monitoring system that Fig. 1 provides for this utility model embodiment;
Fig. 2 is the detailed construction schematic diagram of signal detection module 1 in Fig. 1;
The structural representation two of the line fault on-line monitoring system that Fig. 3 provides for this utility model embodiment.
[main element symbol description]
1: signal detection module;
11: processor;
12: detector;
13: reset circuit;
2: wireless radio frequency modules;
3: wireless transport module;
31: big solar panel;
32: accumulator;
4: monitoring central server;
41: short message transceiving module;
5: monitoring terminal;
6: signal source;
7: Sunny energy cell panel;
8: backup battery;
9: short message transceiving device.
Detailed description of the invention
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.
This utility model needs the artificial detection gathering fault detector for existing overhead type earth-fault indicator
As a result, inefficiency, and observation effect easily receives the problem of impact of on-the-spot surrounding enviroment, it is provided that a kind of line fault is online
Monitoring system.
It is illustrated in figure 1 a kind of line fault on-line monitoring system that this utility model embodiment provides, including: it is arranged on
Signal source 6 on distribution line and signal detection module 1, wireless radio frequency modules 2, wireless transport module 3, monitoring central server
4 and monitoring terminal 5;
Described signal detection module 1, is used for detecting whether described distribution line breaks down, when described distribution wire being detected
Time breaking down in road, output fault message is to described wireless radio frequency modules 2, and described fault message includes: described fault bit confidence
Breath;
Described wireless radio frequency modules 2, is wirelessly transferred mould described in being passed through by the fault message that signal detection module 1 exports
Block 3 transmits to monitoring central server 4;
Described monitoring central server 4, is used for receiving described fault message, is additionally operable to store described signal detection module 1
Installation site figure;
Described monitoring terminal 5, for obtaining installation site figure and the fault letter of the storage of described monitoring central server 4
Breath, and show failure identification at the described abort situation in described installation site figure;
Described signal source 6, is used for judging whether distribution line occurs singlephase earth fault, the most then in earth-return circuit
Inject characteristic current signal, when the signal detection module 1 being arranged on distribution line detects described characteristic current signal, enter
Row alarm prompt.
Line fault on-line monitoring system described in this utility model embodiment, by signal source 6 and signal detection module 1
Whether detection distribution line breaks down, if detecting when described distribution line breaks down, exports fault message;And lead to successively
Cross wireless radio frequency modules 2, described transmitting fault information to monitoring central server 4, is taken by wireless transport module 3 by Surveillance center
Business device 4 receives described fault message, and stores the installation site figure of described signal detection module 1, finally, according in described monitoring
The installation site figure of central server 4 storage and fault message, show at the described abort situation in described installation site figure
Failure identification, and present to line attendant by monitoring terminal 5.As such, it is possible to fault message is passed to indoor from outdoor,
And on monitoring terminal 5, show the position of the circuit broken down, thus substantially reduce line attendant and artificially gather
The time of detection module test result, improve the work efficiency of line attendant.
As in figure 2 it is shown, described signal detection module 1 includes: processor 11 and multiple detector 12;
Described detector 12, for detecting the current signal on distribution wire circuit and voltage signal;
Described processor 11, judges this inspection for the current signal according to each described detector 12 feedback and voltage signal
Survey whether device 12 position breaks down;
In this utility model embodiment, described processor 11 can be Programmable Logic Controller, ARM or AVR single chip, described
Processor 11 includes: analog-digital converter.
Each described detector 12 includes: current transformer, high pass filter, voltage transformer and low pass filter;Institute
Stating current transformer to be connected with described processor 11 by described high pass filter, described voltage transformer is by described low pass filtered
Ripple device is connected with described processor 11.
In described detector 12, high pass filter is used for filtering the first-harmonic in current transformer output signal and low order is humorous
Ripple, outputs signal to processor 11;Low pass filter is used for filtering the High-frequency Interference in voltage transformer output signal, leaves behind
Power frequency component is to processor 11;Processor 11 by combining the voltage signal and current signal transmitted in each detector 12,
To judge whether this detector 12 position breaks down.
In this utility model embodiment, described processor 11 can also judge it according to the measured value of voltage transformer
Whether the circuit at detector 12 place has electricity, if circuit does not has electricity, then allows processor 11 enter resting state, until again detecting
To there being electricity just to start circuit malfunction monitoring, in such manner, it is possible to greatly reduce the power consumption of signal detection module 1, extend signal inspection simultaneously
Survey the service life of module 1.
In this utility model embodiment, every bus of transmission line of electricity has a signal source 6, all main lines, branch line and
It is equipped with detector 12 on branch line, signal source 6 detects whether transmission line of electricity occurs singlephase earth fault, and when fault
Injecting characteristic current signal to faulty section, detector 12 detects this characteristic current signal, then it is assumed that circuit there occurs ground connection event
, otherwise it is assumed that there is not earth fault in barrier;Upon the occurrence of a ground fault, output fault message.
In this utility model embodiment, as in figure 2 it is shown, described signal detection module 1 can also include: reset circuit
13;Described reset circuit 13, for the status information of the described processor 11 that resets, reset circuit 13 and described processor 11 phase
Even;Reset circuit 13 can also be used to resetting processor 11 during scheduling and planning.
As it is shown on figure 3, described monitoring central server 4 also includes: short message transceiving module 41;Described system also includes: short
Letter R-T unit 9;Described short message transceiving module 41, for sending described fault message to described note by the way of note
R-T unit 9, such as, mobile phone, in order to remind line attendant that faulty line is safeguarded timely.
In this utility model embodiment, described monitoring terminal 5 includes: for pointing out the warning mould of described fault message
Block, in order to remind line attendant that faulty line is safeguarded timely.
In this utility model embodiment, check line fault information, institute whenever and wherever possible for the ease of line attendant
State monitoring terminal 5 and be possible not only to be microcomputer monitoring terminal, it is also possible to be hand-held mobile terminal.
In this utility model embodiment, as it is shown on figure 3, described system also includes: Sunny energy cell panel 7 and the big sun
Can cell panel 31;The power supply outfan of described Sunny energy cell panel 7 is with the energization input of described signal detection module 1 even
Connecing, the power supply outfan of big solar panel 31 is connected with the energization input of described wireless transport module 3.Utilize Sunny
Energy cell panel 7 and big solar panel 31 absorb sunlight, and by solar radiation by photoelectric effect or Photochemical effects
It is converted directly or indirectly into electric energy, provides power supply for described signal detection module 1 and described wireless transport module 3, it is possible to reduce
System energy consumption.
In this utility model embodiment, in order to ensure at rainy weather, it is possible to the described signal detection module 1 of normal use
Carrying out fault detect with described wireless transport module 3, described system can also utilize backup battery 8 and accumulator 32, is respectively
Described signal detection module 1 and described wireless transport module 3 provide power supply;Wherein, the power supply outfan of described accumulator 32 with
The energization input of described wireless transport module 3 connects, power supply outfan and the described signal detection module 1 of backup battery 8
Energization input connects.
In this utility model embodiment, described wireless transport module 3 is wireless GSM transport module.
The above is preferred implementation of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from principle described in the utility model, it is also possible to make some improvements and modifications, these improve
Also protection domain of the present utility model is should be regarded as with retouching.