CN208805554U - Fault section diagnosis apparatus and system - Google Patents
Fault section diagnosis apparatus and system Download PDFInfo
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- CN208805554U CN208805554U CN201821452022.1U CN201821452022U CN208805554U CN 208805554 U CN208805554 U CN 208805554U CN 201821452022 U CN201821452022 U CN 201821452022U CN 208805554 U CN208805554 U CN 208805554U
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- power supply
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- section diagnosis
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Abstract
The utility model provides a kind of fault section diagnosis apparatus and system.The fault section diagnosis device includes: the controller connecting with draw-out power supply device, acquisition device connected to the controller and communication device connected to the controller；Controller is used for: being received the voltage from draw-out power supply device, is judged whether voltage is greater than the first preset value, when voltage is greater than the first preset value, by voltage output to acquisition device, starts acquisition device；Acquisition device is used for: acquisition fault traveling wave electric current, and sends fault traveling wave electric current to controller；Controller is also used to: being received fault traveling wave electric current, is exported abort situation to communication device according to fault traveling wave electric current；Communication device is used for: being received abort situation, and is sent abort situation to external equipment.The utility model can reduce the starting voltage of fault section diagnosis device, improve the adaptation range and reliability of fault section diagnosis device.
Description
Technical field
The utility model relates to power domains, and in particular, to a kind of fault section diagnosis apparatus and system.
Background technique
With being growing for electric system scale, the remote overhead transmission line of high pressure is increasing.Transmission line of electricity is made
It is the interconnection between each large-scale power system for the tie of energy transmission, while is also whole system safe and stable operation
Basis.Once breaking down on transmission line of electricity, fault point must be found as early as possible, debugged, restored electricity.But due to high pressure
It is often exposed to different environment with extra high voltage network and is distributed in vast geographic area, running environment is severe (such as danger
High mountain area, unfavorable geology, harsh climate, traffic difficulties etc.), therefore, it is also most place of breaking down in electric system.
Fault point is rapidly and accurately found after line fault, not only repairs route and fast recovery of power supply to timely, but also to entire electricity
The safety and stability of Force system and economical operation have highly important effect.
Fault section diagnosis device is a kind of device of on-line determination failure point of power transmission line position.It not only can be according to not
Same fault signature quickly and accurately determines fault point, improves fault location precision to improve failure line walking efficiency, but also
Transient fault traveling-wave waveform can be captured, be lightning fault to failure is also non-lightning fault, lightning fault category shielding or anti-
Hit carry out INTELLIGENT IDENTIFICATION.Fault section diagnosis device not only can help to repair faulty line in time, it is ensured that the peace of entire power grid
Full stable operation reduces because of transmission line malfunction bring economic loss, and can largely save the man power and material of line walking, subtracts
The heavy manual labor of light track walker.The safe and stable and economical operation for technically guaranteeing power grid, has huge society
And economic benefit.
The starting overtension of existing fault section diagnosis device causes the fault section diagnosis device in some regions to pass through
It often goes offline, can not work normally and apply.
Utility model content
The main purpose of the utility model embodiment is to provide a kind of fault section diagnosis apparatus and system, to reduce event
The starting voltage for hindering level diagnosis device, improves the adaptation range and reliability of fault section diagnosis device.
To achieve the goals above, the utility model embodiment provides a kind of fault location connecting with draw-out power supply device
Diagnostic device, comprising:
The controller being connect with draw-out power supply device, acquisition device connected to the controller and connected to the controller
Communication device；
Controller is used for: being received the voltage from draw-out power supply device, is judged whether voltage is greater than the first preset value, work as electricity
When pressure is greater than the first preset value, by voltage output to acquisition device, start acquisition device；
Acquisition device is used for: acquisition fault traveling wave electric current, and sends fault traveling wave electric current to controller；
Controller is also used to: being received fault traveling wave electric current, is exported abort situation to communication device according to fault traveling wave electric current；
Communication device is used for: being received abort situation, and is sent abort situation to external equipment.
The utility model embodiment also provides a kind of fault section diagnosis system, comprising:
Fault section diagnosis device as described above, the draw-out power supply device being connect with fault section diagnosis device, and
Taking for connecting with draw-out power supply device can mutual inductor；
Take can mutual inductor convert electrical current into voltage for obtaining electric current from transmission pressure, and output voltage is to taking energy
Power supply device；
Draw-out power supply device exports voltage by conversion to fault section diagnosis device for converting voltage.
In a kind of wherein embodiment, draw-out power supply device includes:
Straightening and filtering unit, for carrying out rectification processing and filtering processing to voltage；
Connect with straightening and filtering unit take electricity adjust protection circuit, for judge through over commutation handle and filtering processing
Whether voltage is greater than the second preset value；When the voltage for handling and being filtered through over commutation is greater than the second preset value, reducing should
The voltage value of voltage is to the second preset value；
Stable-pressure device is isolated with taking electricity to adjust protection circuit connection, for by taking electricity to adjust the voltage of protection circuit
Carry out isolation steady pressure treatment, voltage of the output by isolation steady pressure treatment to fault section diagnosis device.
The utility model embodiment also provides a kind of fault section diagnosis system, comprising:
Fault section diagnosis device as described above, the draw-out power supply device being connect with fault section diagnosis device, and
Taking for connecting with draw-out power supply device can mutual inductor；
Take can mutual inductor convert electrical current into voltage for obtaining electric current from transmission pressure, and output voltage is to taking energy
Power supply device；
Draw-out power supply device exports voltage by conversion to fault section diagnosis device for converting voltage；
Taking energy mutual inductor includes: iron core bracket, two iron cores being relatively arranged on iron core bracket, and is wrapped in two
Coil on iron core.
In a kind of wherein embodiment, the line footpath of coil is 0.2 millimeter, and the number of turns of coil is 300 circles.
The fault section diagnosis apparatus and system of the utility model embodiment can reduce opening for fault section diagnosis device
Dynamic voltage, improves the adaptation range and reliability of fault section diagnosis device.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural block diagram of fault section diagnosis device in the utility model embodiment；
Fig. 2 is the structural block diagram of fault section diagnosis system in the utility model embodiment；
Fig. 3 is draw-out power supply apparatus structure block diagram in the utility model embodiment；
Fig. 4 is the partial schematic diagram that energy mutual inductor is taken in the utility model embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In view of the starting overtension of current fault section diagnosis device, lead to the fault section diagnosis device in some regions
It often goes offline, can not work normally and apply, the utility model embodiment provides a kind of failure connecting with draw-out power supply device
Level diagnosis device improves the adaptation range of fault section diagnosis device to reduce the starting voltage of fault section diagnosis device
And reliability.The utility model is described in detail below in conjunction with attached drawing.
Fig. 1 is the structural block diagram of fault section diagnosis device in the utility model embodiment.As shown in Figure 1, fault location
Diagnostic device includes:
The controller being connect with draw-out power supply device, acquisition device connected to the controller and connected to the controller
Communication device；
Controller is used for: being received the voltage from draw-out power supply device, is judged whether voltage is greater than the first preset value, work as electricity
When pressure is greater than the first preset value, by voltage output to acquisition device, start acquisition device.
Acquisition device is used for: acquisition fault traveling wave electric current, and sends fault traveling wave electric current to controller；
Controller is also used to: being received fault traveling wave electric current, is exported abort situation to communication device according to fault traveling wave electric current；
Communication device is used for: being received abort situation, and is sent abort situation to external equipment.
When it is implemented, the process of the utility model embodiment is as follows:
1, controller receives the voltage from draw-out power supply device, and by voltage output to communication device, makes communication device
Starting.
2, controller judges whether voltage is greater than the first preset value, when voltage is greater than the first preset value, by voltage output
To acquisition device, start acquisition device, otherwise prevents voltage output to acquisition device.Even if acquisition device is inactive, open
Dynamic communication device can also upload the presence of fault section diagnosis device to external equipment, can be in received starting voltage
In insufficient situation, enables fault section diagnosis device still in presence, guarantee the online rate of fault section diagnosis device.
3, after acquisition device starting, fault traveling wave electric current is acquired, and send fault traveling wave electric current to controller, controller
Fault traveling wave electric current is received, abort situation is exported to communication device according to fault traveling wave electric current, communication device receives abort situation,
And abort situation is sent to external equipment.Wherein, controller can use AT91SAM9G20B chip.
Controller in the fault section diagnosis device of the utility model embodiment receives the electricity from draw-out power supply device
Pressure, judges whether voltage is greater than the first preset value；When voltage be greater than the first preset value when, future self-energizing power supply device voltage
Output starts acquisition device to acquisition device；Acquisition device acquires and sends fault traveling wave electric current to controller, and controller connects
Abort situation is exported to communication device according to fault traveling wave electric current；Communication device receives and sends abort situation to outside and sets
It is standby, fault section diagnosis device can be enabled to power on step by step, reduce the starting voltage of fault section diagnosis device, it is fixed to improve failure
The adaptation range and reliability of position diagnostic device.
Based on same design, the utility model embodiment additionally provides a kind of fault section diagnosis system.Fig. 2 is that this is practical
The structural block diagram of fault section diagnosis system in new embodiment.As shown in Fig. 2, fault section diagnosis system includes:
Fault section diagnosis device as described above, the draw-out power supply device being connect with fault section diagnosis device, and
Taking for connecting with draw-out power supply device can mutual inductor；
Take can mutual inductor convert electrical current into voltage for obtaining electric current from transmission pressure, and output voltage is to taking energy
Power supply device；
Draw-out power supply device exports voltage by conversion to fault section diagnosis device for converting voltage.
Fig. 3 is draw-out power supply apparatus structure block diagram in the utility model embodiment.As shown in figure 3, draw-out power supply device packet
It includes:
Straightening and filtering unit, for carrying out rectification processing and filtering processing to voltage.
Connect with straightening and filtering unit take electricity adjust protection circuit, for judge through over commutation handle and filtering processing
Whether voltage is greater than the second preset value；When the voltage for handling and being filtered through over commutation is greater than the second preset value, reducing should
The voltage value of voltage is to the second preset value.For example, when fault section diagnosis system is struck by lightning moment big voltage can be caused, take
Electricity, which adjusts protection circuit, can adjust and limit in real time the voltage of draw-out power supply device output, to avoid causing fault section diagnosis to fill
It sets and is burned.
Stable-pressure device is isolated with taking electricity to adjust protection circuit connection, for by taking electricity to adjust the voltage of protection circuit
Carry out isolation steady pressure treatment, voltage of the output by isolation steady pressure treatment to fault section diagnosis device.
There are several types of operating modes for draw-out power supply device in the fault section diagnosis system of the utility model embodiment:
1, standby mode: when the electric current on transmission pressure is very small, cause to take can mutual inductor conversion voltage it is very small, very
When can not extremely provide the voltage consumed needed for the starting of fault section diagnosis device, draw-out power supply device can be in standby, no
Output power.
2, operate intermittently mode: when the electric current on transmission pressure increases to certain value, make to take can mutual inductor conversion voltage
It can support the controller and communication device starting in fault section diagnosis device, but be not enough to that acquisition device is supported to work normally
When, draw-out power supply device can be in intermittent duty, discontinuously to fault section diagnosis device output power, draw-out power supply at this time
Device output voltage values are the square wave of rated output voltage and zero volt jump variation.
3, normal mode of operation: when the electric current on transmission pressure is sufficiently large, allow to take can the voltage of mutual inductor conversion prop up
When holding the work of fault section diagnosis device, power needed for draw-out power supply device normally exports fault section diagnosis device, and limit
The big voltage of input fault level diagnosis device processed.Draw-out power supply device will not all export rated output under all working mode
Abnormal voltage value other than voltage and zero volt, to ensure the trouble free service of fault section diagnosis device.
Energy mutual inductor is taken to obtain electric current from transmission pressure in the fault section diagnosis system of the utility model embodiment,
Convert electrical current into voltage, and output voltage is to draw-out power supply device；Draw-out power supply device converts voltage, and exports by conversion
Voltage to fault section diagnosis device, fault section diagnosis device can be enabled to power on step by step, reduce fault section diagnosis device
Starting voltage, improve the adaptation range and reliability of fault section diagnosis device.
Based on same design, the utility model embodiment additionally provides a kind of fault section diagnosis system.Fig. 4 is that this is practical
The partial schematic diagram of energy mutual inductor is taken in new embodiment.As shown in figure 4, fault section diagnosis system includes:
Fault section diagnosis device as described above, the draw-out power supply device being connect with fault section diagnosis device, and
Taking for connecting with draw-out power supply device can mutual inductor；
Take can mutual inductor convert electrical current into voltage for obtaining electric current from transmission pressure, and output voltage is to taking energy
Power supply device；
Draw-out power supply device exports voltage by conversion to fault section diagnosis device for converting voltage；
Taking energy mutual inductor includes: iron core bracket 402, two iron cores 401 being relatively arranged on iron core bracket, and winding
Coil on two iron cores.
In one embodiment, the line footpath of coil is 0.2 millimeter, and the number of turns of coil is 300 circles.
It takes energy mutual inductor using two iron cores in the fault section diagnosis system of the utility model embodiment, improves iron
Core cross section contact area, balances weight, easy for installation；Additionally use the line footpath of smaller coil and the circle of more coils
Number, can satisfy the demand of the low start voltage of fault section diagnosis device, provides optimal power supply performance, fault location is enabled to examine
Disconnected device powers on step by step, reduces the starting voltage of fault section diagnosis device, improves the adaptation model of fault section diagnosis device
It encloses and reliability.
In conclusion the fault section diagnosis apparatus and system of the utility model embodiment can reduce fault section diagnosis
The starting voltage of device improves the adaptation range and reliability of fault section diagnosis device.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not used to limit this foregoing is merely specific embodiment of the utility model
The protection scope of utility model, within the spirit and principle of the utility model, any modification for being made, changes equivalent replacement
Into etc., it should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of fault section diagnosis device being connect with draw-out power supply device characterized by comprising
The controller being connect with the draw-out power supply device, the acquisition device being connect with the controller, and with the control
The communication device of device connection；
The controller is used for: the voltage from draw-out power supply device received, judges whether the voltage is greater than the first preset value,
When the voltage is greater than the first preset value, by the voltage output to acquisition device, start acquisition device；
The acquisition device is used for: acquisition fault traveling wave electric current, and sends the fault traveling wave electric current to the controller；
The controller is also used to: being received the fault traveling wave electric current, is exported abort situation extremely according to the fault traveling wave electric current
The communication device；
The communication device is used for: being received the abort situation, and is sent the abort situation to external equipment.
2. a kind of fault section diagnosis system characterized by comprising
Fault section diagnosis device described in claim 1, the draw-out power supply device being connect with the fault section diagnosis device,
And what is connect with the draw-out power supply device takes energy mutual inductor；
It is described to take energy mutual inductor for obtaining electric current from transmission pressure, the electric current is converted into voltage, and export the electricity
It is depressed into the draw-out power supply device；
The draw-out power supply device is for converting the voltage, and voltage to the fault section diagnosis exported by conversion fills
It sets.
3. fault section diagnosis system according to claim 2, which is characterized in that the draw-out power supply device includes:
Straightening and filtering unit, for carrying out rectification processing and filtering processing to the voltage；
Connect with the straightening and filtering unit take electricity adjust protection circuit, for judge through over commutation handle and filtering processing
Whether voltage is greater than the second preset value；When the voltage for handling and being filtered through over commutation is greater than the second preset value, reducing should
The voltage value of voltage is to second preset value；
It takes electricity to adjust protection circuit connection stable-pressure device is isolated with described, for by taking electricity to adjust the voltage of protection circuit
Carry out isolation steady pressure treatment, voltage of the output by isolation steady pressure treatment to the fault section diagnosis device.
4. a kind of fault section diagnosis system characterized by comprising
Fault section diagnosis device described in claim 1, the draw-out power supply device being connect with the fault section diagnosis device,
And what is connect with the draw-out power supply device takes energy mutual inductor；
It is described to take energy mutual inductor for obtaining electric current from transmission pressure, the electric current is converted into voltage, and export the electricity
It is depressed into the draw-out power supply device；
The draw-out power supply device is for converting the voltage, and voltage to the fault section diagnosis exported by conversion fills
It sets；
It is described take can mutual inductor include: iron core bracket, two iron cores being relatively arranged on the iron core bracket, and be wrapped in
Coil on described two iron cores.
5. fault section diagnosis system according to claim 4, which is characterized in that
The line footpath of the coil is 0.2 millimeter, and the number of turns of the coil is 300 circles.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821452022.1U CN208805554U (en) | 2018-09-05 | 2018-09-05 | Fault section diagnosis apparatus and system |
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| CN201821452022.1U CN208805554U (en) | 2018-09-05 | 2018-09-05 | Fault section diagnosis apparatus and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061389A (en) * | 2018-09-05 | 2018-12-21 | 北京国网富达科技发展有限责任公司 | Control method, controller, fault section diagnosis method, apparatus and system |
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2018
- 2018-09-05 CN CN201821452022.1U patent/CN208805554U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109061389A (en) * | 2018-09-05 | 2018-12-21 | 北京国网富达科技发展有限责任公司 | Control method, controller, fault section diagnosis method, apparatus and system |
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