CN205608065U - Zero -sequence current detection device - Google Patents
Zero -sequence current detection device Download PDFInfo
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- CN205608065U CN205608065U CN201620325199.XU CN201620325199U CN205608065U CN 205608065 U CN205608065 U CN 205608065U CN 201620325199 U CN201620325199 U CN 201620325199U CN 205608065 U CN205608065 U CN 205608065U
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Abstract
The utility model relates to a zero -sequence current detection device, including current sensor, first short distance communication module, second short distance communication module and zero sequence analytical equipment on the spot, current sensor gathers transmission line's operating load electric current information, and will the operating load electric current sends to first short distance communication module, first short distance communication module receives operating load electric current information to will through second short distance communication module operating load electric current information transmission is zero sequence analytical equipment extremely on the spot, zero sequence analytical equipment receives operating load electric current information on the spot, and output the zero sequence current that operating load electric current information corresponds, it can realize the detection to corresponding transmission line zero sequence current, need not to stop the normal operating of relevant equipment in the testing process, has guaranteed the smooth nature of distribution network function, has higher detection efficiency.
Description
Technical field
This utility model relates to technical field of electric power, particularly relates to a kind of zero sequence current detection device.
Background technology
Electric distribution network overhead wire is intricate, and the earth fault of overhead transmission line takes place frequently, and long-play is the most easily
Failure propagation is made to become or multipoint earthing short circuit, the situation such as arc grounding, it is also possible to cause total system the most electric at 2
Pressure, and then damage equipment, destroy system safety operation, it is seen that to the zero-sequence current of transmission line of electricity in power distribution network
Detect accordingly, to prevent above-mentioned various faults to occur, become of crucial importance.Distribution network overhead line at present
The collection of the information such as zero-sequence current or the operation such as detection depend on the measurement indirectly of hard wired mode and obtain, logical
In the case of Chang, during the detection of zero-sequence current, the installation of relevant apparatus or equipment needs to have a power failure, easy shadow
Ring the running of power distribution network and corresponding detection efficiency.
Utility model content
Based on this, it is necessary to easily affect power distribution network running and the technology of corresponding detection efficiency for traditional scheme
Problem, it is provided that a kind of zero sequence current detection device.
A kind of zero sequence current detection device, including current sensor, the first short-range communication module, second short
Field communication module and on the spot zero sequence analytical equipment；
Described current sensor is arranged on the transmission line of electricity of power distribution network, and the described analytical equipment of zero sequence on the spot is installed
On the shaft tower of power distribution network, described current sensor connects the first short-range communication module, described second short distance
Connecting zero sequence analytical equipment on the spot from communication module, described first short-range communication module is led to the second short distance
Letter module wirelessly communicates；
Described current sensor gathers the operating load current information of transmission line of electricity, and by described operating load electricity
Stream sends to the first short-range communication module, and described first short-range communication module receives operating load electric current letter
Breath, and by the second short-range communication module, described operating load current information is transmitted to zero sequence analysis on the spot
Device, the described analytical equipment of zero sequence on the spot receives operating load current information, and exports described operating load electricity
The zero-sequence current that stream information is corresponding.
Above-mentioned zero sequence current detection device, by current sensor, the first short-range communication module, second short
The combination of the devices such as field communication module and on the spot zero sequence analytical equipment, current sensor is arranged on power distribution network
On transmission line of electricity, can in real time the operating load current information of transmission line of electricity be acquired, and in time by institute
The operating load current information gathered sends to the zero sequence analytical equipment on the spot being arranged on shaft tower, to obtain phase
The zero-sequence current answered, it is achieved the detection to corresponding power transmission line zero-sequence electric current, without stopping phase during detection
Pass equipment properly functioning, it is ensured that the fairness of power distribution network running, has higher detection efficiency.
Accompanying drawing explanation
Fig. 1 is the zero sequence current detection device structural representation of an embodiment；
Fig. 2 is current sensor and the zero sequence analytical equipment scheme of installation on the spot of an embodiment；
Fig. 3 is the zero sequence current detection device structural representation of an embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the zero sequence current detection device that this utility model provides is carried out
Corresponding elaboration.
The zero sequence current detection device structural representation of an embodiment it is shown, including electricity with reference to Fig. 1, Fig. 1
Flow sensor the 11, first short-range communication module the 13, second short-range communication module 15 and on the spot zero sequence are divided
Analysis apparatus 17；
Described current sensor 11 is arranged on the transmission line of electricity of power distribution network, the described analytical equipment of zero sequence on the spot 15
Being arranged on the shaft tower of power distribution network, described current sensor 11 connects the first short-range communication module 13, described
Second short-range communication module 15 connects zero sequence analytical equipment 17 on the spot, described first short-range communication module
13 wirelessly communicate with the second short-range communication module 15；
Described current sensor 11 gathers the operating load current information of transmission line of electricity, and by described operating load
Electric current sends to the first short-range communication module 13, and described first short-range communication module 13 receives operating load
Current information, and by the second short-range communication module 15, described operating load current information is transmitted on the spot
Zero sequence analytical equipment 17, the described analytical equipment of zero sequence on the spot 17 receives operating load current information, and exports institute
State the zero-sequence current that operating load current information is corresponding.
As an embodiment, the above-mentioned analytical equipment of zero sequence on the spot can include that the operation according to transmission line of electricity is born
The device of the corresponding zero-sequence current of charged current acquisition of information, it is generally the case that the above-mentioned analytical equipment of zero sequence on the spot is also
Can possess the function that zero-sequence current is carried out correlation analysis, such as, detect whether corresponding zero-sequence current exceedes
A certain threshold value, after exceeding above-mentioned threshold value, sends corresponding alarm signal etc..
Fig. 2 is current sensor and the zero sequence analytical equipment scheme of installation on the spot of the present embodiment, such as Fig. 2 institute
Stating, above-mentioned current sensor 11 can include multiple, and each current sensor is separately mounted to different transmissions of electricity
On circuit 51, to gather the operating load current information on corresponding transmission line of electricity 51.Above-mentioned zero sequence on the spot is divided
Analysis apparatus 17 may be mounted on the shaft tower 53 of power distribution network, specifically, and the above-mentioned analytical equipment of zero sequence on the spot 17
May be mounted at the lower position of power distribution network shaft tower 53, in order to relevant staff carries out the reading of zero-sequence current
The operation such as take.The above-mentioned analytical equipment of zero sequence on the spot 17 can utilize the operating load current information of transmission line of electricity to obtain
Take corresponding zero-sequence current, and export.
The zero sequence current detection device that the present embodiment provides, over-current sensor the 11, first short haul connection mould
The combination of the devices 17 such as block the 13, second short-range communication module 15 and on the spot zero sequence analytical equipment, electric current passes
Sensor 11 is arranged on the transmission line of electricity of power distribution network, can operating load current information to transmission line of electricity in real time
It is acquired, and in time the operating load current information gathered is sent on the spot zero be arranged on shaft tower
Sequence analytical equipment 17, to obtain corresponding zero-sequence current, it is achieved the detection to corresponding power transmission line zero-sequence electric current,
Without stopping the properly functioning of relevant device during detection, it is ensured that the fairness of power distribution network running, have
Higher detection efficiency.
In one embodiment, above-mentioned current sensor can be distributed electrical flow sensor.
The present embodiment uses distributed electrical flow sensor to carry out the collection of corresponding operating load current information, permissible
Ensure the accuracy of the operating load current information gathered.
In one embodiment, above-mentioned first short-range communication module and the second short-range communication module are wrapped respectively
Include ZigBee module.
Use ZigBee module to carry out short haul connection, there is relatively low communications cost, and higher communication
Stability.
As it is shown on figure 3, in one embodiment, above-mentioned zero sequence current detection device, it is also possible to include controlling
Device 21；Described controller connect respectively described in zero sequence analytical equipment 17 on the spot, described controller 21 for from
The described analytical equipment of zero sequence on the spot 17 reads zero-sequence current.
As an embodiment, above-mentioned zero sequence current detection device, it is also possible to include alarm 22, described report
Alert device 22 connects described controller 21；Described alarm 22 is for carrying out under the control of described controller 21
Report to the police.
The present embodiment is at above-mentioned zero sequence current detection device access controller 21, it is possible to use controller noted above 21
Zero-sequence current is monitored accordingly, when zero-sequence current trip abnormal case by alarm 22 warning etc.
Form makes relevant staff know in time, to be further ensured that the safe operation of power distribution network.
As an embodiment, above-mentioned zero sequence current detection device, it is also possible to include store device, described in deposit
Storage device connects described controller, and described storage device, for receiving the zero-sequence current that controller sends, is gone forward side by side
Row preserves.
The present embodiment can utilize controller noted above to carry out zero-sequence current, and controller is to above-mentioned zero-sequence current
It is monitored the preservation of result.Be conducive to the acquisition to zero-sequence current relevant historical data.
As an embodiment, above-mentioned zero sequence current detection device, it is also possible to include GPS communication module and people
Machine interactive module；
Described human-computer interaction module is communicated with controller by GPS communication module.
Above-mentioned human-computer interaction module can obtain the result of controller monitoring zero-sequence current by GPS communication module,
And show accordingly；It can also read relevant staff and show, for it, the operation signal inputted,
These operation signals are transmitted to controller, makes controller can control relevant device according to aforesaid operations signal
Work.Above-mentioned GPS communication module can also receive GPS clock signal, to ensure distributed sensing module
Clock synchronicity.
As an embodiment, above-mentioned zero sequence current detection device, it is also possible to include electric supply installation；Described confession
Electric installation connects the first short-range communication module, the second short-range communication module and controller respectively；
Described electric supply installation is respectively the first short-range communication module, the second short-range communication module and controller
Power supply.
As an embodiment, described electric supply installation can also include solar panels and can charge and discharge battery.
The present embodiment uses solar panels and charge and discharge battery can be powered relevant device, can be to surrounding
Solar energy makes full use of, and reduces the waste of the energy, it is achieved it is saved.
In actual applications, controller noted above can include central processing module, after obtaining zero-sequence current,
The related algorithm having been had by it, is compared the zero-sequence current threshold values of zero-sequence current with setting.If zero
The zero-sequence current value that sequence electric current is corresponding is less than zero-sequence current threshold values, then it is assumed that does not break down, does not send report
Alert instruction.If zero-sequence current value is more than zero-sequence current threshold values, then judge that power distribution network breaks down, now, control
Device processed can control zero sequence analytical equipment on the spot, make the above-mentioned analytical equipment of zero sequence on the spot by the first short distance without
Line communication module and the first short-range wireless communication module, send alarm command to distributed electrical flow sensor,
Distributed electrical flow sensor can be reported to the police by modes such as flashing lights, and meanwhile, controller can also pass through phase
The human-computer interaction module circuit operating mode answered and circuit zero sequence information, guide line operation maintenance personnel is to fault wire
Road is overhauled.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right
For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do
Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model is special
The protection domain of profit should be as the criterion with claims.
Claims (9)
1. a zero sequence current detection device, it is characterised in that include that current sensor, the first short distance are led to
Letter module, the second short-range communication module and zero sequence analytical equipment on the spot；
Described current sensor is arranged on the transmission line of electricity of power distribution network, and the described analytical equipment of zero sequence on the spot is installed
On the shaft tower of power distribution network, described current sensor connects the first short-range communication module, described second short distance
Connecting zero sequence analytical equipment on the spot from communication module, described first short-range communication module is led to the second short distance
Letter module wirelessly communicates；
Described current sensor gathers the operating load current information of transmission line of electricity, and by described operating load electricity
Stream sends to the first short-range communication module, and described first short-range communication module receives operating load electric current letter
Breath, and by the second short-range communication module, described operating load current information is transmitted to zero sequence analysis on the spot
Device, the described analytical equipment of zero sequence on the spot receives operating load current information, and exports described operating load electricity
The zero-sequence current that stream information is corresponding.
Zero sequence current detection device the most according to claim 1, it is characterised in that described current sense
Device is distributed electrical flow sensor.
Zero sequence current detection device the most according to claim 1, it is characterised in that described first short distance
ZigBee module is included respectively from communication module and the second short-range communication module.
Zero sequence current detection device the most according to claim 1, it is characterised in that also include controller；
Described controller connect respectively described in zero sequence analytical equipment on the spot, described controller is for from described zero sequence on the spot
Analytical equipment reads zero-sequence current.
Zero sequence current detection device the most according to claim 4, it is characterised in that also include alarm,
Described alarm connects described controller；Described alarm is for reporting to the police under the control of described controller.
Zero sequence current detection device the most according to claim 4, it is characterised in that also include storage dress
Putting, described storage device connects described controller, and described storage device is for receiving the zero sequence that controller sends
Electric current, and preserve.
Zero sequence current detection device the most according to claim 4, it is characterised in that also include GPS
Communication module and human-computer interaction module；
Described human-computer interaction module is communicated with controller by GPS communication module.
Zero sequence current detection device the most according to claim 4, it is characterised in that also include for Denso
Put；Described electric supply installation connects the first short-range communication module, the second short-range communication module and control respectively
Device；
Described electric supply installation is respectively the first short-range communication module, the second short-range communication module and controller
Power supply.
Zero sequence current detection device the most according to claim 8, it is characterised in that described electric supply installation
Including solar panels and can charge and discharge battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620325199.XU CN205608065U (en) | 2016-04-18 | 2016-04-18 | Zero -sequence current detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620325199.XU CN205608065U (en) | 2016-04-18 | 2016-04-18 | Zero -sequence current detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205608065U true CN205608065U (en) | 2016-09-28 |
Family
ID=56972491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620325199.XU Active CN205608065U (en) | 2016-04-18 | 2016-04-18 | Zero -sequence current detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205608065U (en) |
-
2016
- 2016-04-18 CN CN201620325199.XU patent/CN205608065U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200521 Address after: 511400 room 815, innovation building, Panyu energy saving science and Technology Park, Guangzhou City, Guangdong Province Patentee after: GUANGZHOU SITAI INFORMATION TECHNOLOGY Co.,Ltd. Address before: 511400, Guangzhou, Guangdong, Panyu east ring street, 555 North Avenue, Panyu science and Technology Park, Panyu District energy saving science and Technology Park, one of the 705 Patentee before: GUANGZHOU ZHONGCHAO HENENG TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |