CN206258546U - Circuit comprehensive monitoring alarm device on the spot - Google Patents
Circuit comprehensive monitoring alarm device on the spot Download PDFInfo
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- CN206258546U CN206258546U CN201621403563.6U CN201621403563U CN206258546U CN 206258546 U CN206258546 U CN 206258546U CN 201621403563 U CN201621403563 U CN 201621403563U CN 206258546 U CN206258546 U CN 206258546U
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- current transformer
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Abstract
The utility model is related to a kind of circuit comprehensive monitoring alarm device on the spot, including power taking current transformer, central processing unit, collection current transformer, voltage sensor and warning device, collection current transformer, voltage sensor and warning device are all connected with central processing unit and the power taking current transformer, central processing unit connects power taking current transformer, and collection current transformer and voltage sensor are also connected with circuit.Collection current transformer is used to gather circuit current data, voltage sensor is used to gather circuit electric field wave shape, central processing unit is used to receive collection current transformer, the data of voltage sensor collection, and the data to receiving are processed, judge whether circuit is abnormal, when line failure is judged, control warning device sends alarm signal, operation maintenance personnel can be when patrolling and examining, line fault section can determine that by circuit comprehensive monitoring alarm device on the spot, line fault isolation and investigation are purposefully carried out, monitoring efficiency is high.
Description
Technical field
The utility model is related to distribution network system operation maintenance management technical field, and more particularly to a kind of circuit on the spot is comprehensive
Close monitor alarm device.
Background technology
In recent years, with the development that power industry and urban and rural highway are built, the accident that power distribution network high pressure is got an electric shock also increases therewith
Plus, circuit is primarily due to during operation, part gold utensil is damaged, and causes line-sag to increase, the safe altitude of script
Reduce, people carry out the activities such as violating the regulations over height stacking operation, fishing below circuit in addition, cause circuit to occur to be grounded, short-circuit, disconnected
Line, the electric power accidents such as tower that fall, so as to have a strong impact on the safe operation of circuit, huge economic loss are brought to power department.
Distribution network line is more, and situation is intricate, is most weak link in power system.Upon the occurrence of a ground fault,
The numerical value of fault current is often much smaller compared with load current, and faulted phase voltage is reduced to zero, and non-faulting phase voltage is raised, but three-phase it
Between line voltage remain in that symmetrically, supply load is not influenceed, therefore code allows to continue to run with 1~2h.But actual fortune
Power cable blast, TV fuse meltings may be triggered even to burn out due to overvoltage in row, the accident such as busbar short-circuit.Operation maintenance personnel
When patrolling and examining, it is necessary to sectional carry out line fault isolation and exclusion, the cost time is long, and monitoring efficiency is low.
Utility model content
Based on this, it is necessary to regarding to the issue above, there is provided a kind of monitoring efficiency comprehensive monitoring of circuit on the spot alarm dress high
Put.
A kind of circuit comprehensive monitoring alarm device on the spot, including：Power taking current transformer, central processing unit, collection electric current
Transformer, voltage sensor and warning device, the collection current transformer, the voltage sensor and the warning device are equal
The central processing unit and the power taking current transformer are connected, the central processing unit connects the power taking current transformer,
The collection current transformer and the voltage sensor are also connected with circuit.
The above-mentioned comprehensive monitoring alarm device of circuit on the spot, power taking current transformer is used for central processing unit, collection electric current
Transformer, voltage sensor and warning device provide electric energy, and collection current transformer is used to gather circuit current data, and voltage is passed
Sensor is used to gather circuit electric field wave shape, and central processing unit is used to receive collection current transformer, the number of voltage sensor collection
According to, and data to receiving process, and judge whether circuit abnormal, such as judge circuit exception, then control warning device sends
Alarm signal, operation maintenance personnel can determine that line fault section when patrolling and examining by circuit comprehensive monitoring alarm device on the spot, have
Line fault isolation and investigation are carried out to purpose, monitoring efficiency is high.
Brief description of the drawings
Fig. 1 is circuit comprehensive monitoring alarm device structure chart on the spot in an embodiment；
Fig. 2 is circuit comprehensive monitoring alarm device structure chart on the spot in another embodiment；
Fig. 3 is the operation principle schematic diagram of automatic crisis identifying device in an embodiment.
Specific embodiment
In one embodiment, as shown in figure 1, one kind circuit comprehensive monitoring alarm device on the spot, including：Power taking electric current is mutual
Sensor 110, central processing unit 120, collection current transformer 130, voltage sensor 140 and warning device 150, collection electric current are mutual
Sensor 130, voltage sensor 140 and warning device 150 are all connected with central processing unit 120 and power taking current transformer 110, center
The connection power taking of processor 120 current transformer 110, collection current transformer 130 and voltage sensor 140 are also connected with circuit.
Specifically, circuit comprehensive monitoring alarm device point ABC three-phases are suspended on distribution trolley line on the spot, and power taking electric current is mutual
The particular type of sensor 110 is not unique, and in the present embodiment, power taking current transformer 110 is non-crystaline amorphous metal current transformer,
Power taking requirement can be met in circuit low current, it is ensured that the electricity supply of circuit comprehensive monitoring alarm device on the spot.Collection electric current
The high precision collecting current transformer 130 of transformer 130 including autonomous Design, can triple line on high-frequency collection distribution trolley line
Road current data.Voltage sensor is that tested electrical parameter is converted into DC current, DC voltage and isolation and amplifier mould by one kind
Intend the device of signal or data signal.Voltage sensor is used to measure the more serious voltage of wave distortion in power network or electric current letter
Number, it is also possible to measure the nonsinusoidal waveforms such as square wave, triangular wave.The particular type of voltage sensor 140 is not unique, in this implementation
In example, voltage sensor 140 includes the plates capacitance of connection central processing unit 120 and power taking current transformer 110, by autonomous
The plates capacitance of optimization design, high precision collecting circuit electric field wave shape can more accurately judge line fault, improve accurate
Property.
The above-mentioned comprehensive monitoring alarm device of circuit on the spot, power taking current transformer 110 is used for central processing unit 120, adopts
Current collection current transformer 130, voltage sensor 140 and warning device 150 provide electric energy, and collection current transformer 130 is used to gather
Circuit current data on Distribution Network Frame ceases to be busy, voltage sensor 140 is used to gather circuit electric field wave shape, and central processing unit is used to connect
Receive collection current transformer 130, voltage sensor 140 collection data, and to receive data process, judge power distribution network
Whether circuit is abnormal on trolley line, such as judges circuit exception, then control warning device 150 to send alarm signal, and operation maintenance personnel can
When patrolling and examining, line fault section can determine that by circuit comprehensive monitoring alarm device on the spot, purposefully enter row line event
Phragma from investigation, monitoring efficiency is high.
In one embodiment, circuit comprehensive monitoring alarm device also includes storage device 160, storage device 160 on the spot
Connection central processing unit 120, power taking current transformer 110, collection current transformer 130 and voltage sensor 140.
Specifically, central processing unit 120 will also gather the history number that current transformer 130 and voltage sensor 140 are gathered
Stored according to sending to storage device 160, can be the later stage provides favourable to analysis and assessment of electric distribution network overhead wire etc.
Data support, improves convenience.
In one embodiment, circuit comprehensive monitoring alarm device also includes communicator on the spot, and communicator connection takes
Electric current transformer 110 and central processing unit 120.
Specifically, communicator carries out data interaction between phase and phase for distribution network line, when 120 points of central processing unit
When separating out three-phase line failure phase, by communicator by the output control of three-phase line data is activation to distribution network line end
Device processed, it is which mutually breaks down that o controller can go out according to the data analysis for receiving, and controls non-faulting phase voltage to raise, and is made
Line voltage between three-phase line remains in that the operation that wouldn't symmetrically influence supply load.Patrol officer can be in this process
In rapid determine that system earth point eliminates earth fault, it is ensured that the safe operation of whole system.Specifically, communicator is specific
Type is not unique, and in the present embodiment, communicator is short-distance wireless communication device.
In one embodiment, communicator includes the WIFI of connection central processing unit 120 and power taking current transformer 110
At least one in device, blue-tooth device and GPRS devices.
Specifically, the particular type of communicator can be configured according to specific needs, improve flexibility.
In one embodiment, warning device 150 includes connection central processing unit 120 and power taking current transformer 110
Sound and light alarm device.
Specifically, central processing unit 120 is used to receive the three-phase current data of the collection collection of current transformer 130, passes through
Three-phase current is overlapped, synthesizes zero-sequence current, in conjunction with the electric field data of the collection of voltage sensor 140, occurred to circuit
Failure, particularly earth fault judged, such as judges line failure, then control acoustic-optic alarm 150 sends sound
Visual alarm, can allow patrol officer to learn line fault situation in time, and go to scene to be processed, to whole network system
Safe operation have highly important meaning.
Specifically, the implication of zero-sequence current refers to：In phase three-wire three circuit, the phasor of three-phase current and equal to zero, i.e.,
Ia+Ib+Ic=0.If accessing a current transformer in phase three-wire three, at this moment induced-current is zero.When generation in circuit
Get an electric shock or during leak current fault, there is leakage current to flow through in loop, at this moment through the three-phase current phasor of transformer and not etc. zero, its
Phasor and it is：Ia+Ib+Ic=I (leakage current, i.e. zero-sequence current).So just there is an induced electricity in transformer secondary coil
Stream, this electric current is added on the electronic amplification circuit of detection part, compared with protection zone device predetermined action current value, if more than dynamic
Make electric current, then act sensitive relay, act on executive component tripping operation.The phasor of three-phase current and it is not equal to zero, it is produced
Electric current be zero-sequence current.
In one embodiment, warning device 150 includes connection central processing unit 120 and power taking current transformer 110
SMS alarming device 150.
Specifically, central processing unit 120 is used to receive the three-phase current data of the collection collection of current transformer 130, passes through
Three-phase current is overlapped, synthesizes zero-sequence current, in conjunction with the electric field data of the collection of voltage sensor 140, occurred to circuit
Failure, particularly earth fault judged, such as judges line failure, then control SMS alarming device 150 to presetting
Number alert, can allow patrol officer to learn line fault situation in time, and go to scene to be processed, to whole electricity
The safe operation of net system has highly important meaning.
In one embodiment, warning device 150 includes connection central processing unit 120 and power taking current transformer 110
Acoustic-optic alarm 150 and SMS alarming device 150.
Specifically, central processing unit 120 is used to receive the three-phase current data of the collection collection of current transformer 130, passes through
Three-phase current is overlapped, synthesizes zero-sequence current, in conjunction with the electric field data of the collection of voltage sensor 140, occurred to circuit
Failure, particularly earth fault judged, such as judges line failure, then control acoustic-optic alarm 150 is sent out simultaneously
Visual alarm and control SMS alarming device 150 speak to preset number alert, because the scope of sound and light alarm
It is limited, when patrol officer is not received by sound and light alarm signal, by receiving warning message, can in time learn line fault feelings
Condition, and go to scene to be processed, there is highly important meaning to the safe operation of whole network system.
In one embodiment, circuit comprehensive monitoring alarm device also includes being all connected with central processing unit 120 and takes on the spot
The automatic crisis identifying device of electric current transformer 110.Automatic crisis identifying device also includes radar detedtor, radar detedtor
Connection central processing unit 120 and power taking current transformer 110.
Specifically, automatic crisis identifying device can intelligently detect abnormal activity, and the generation of early warning accident is simultaneously
Accident is analyzed and combing.Automatic crisis identifying device operation principle as shown in figure 3, with reference to the radar exploration technique, automatically
The location of identification target (the mainly altitude operation vehicle such as tower crane, crane), and target position information is sent to center
Processor 120, central processing unit 120 receives the target position information that automatic identification crisis device sends, and by target location with
Default alarm region (can be adjusted according to specific needs) is compared, when judging that target location alerts regional extent default
When interior, control warning device 150 sends alarm signal, reminds target to note keeping safe distance, prevents the high-altitudes such as tower crane, crane
Working truck operational error causes accident.
In one embodiment, circuit comprehensive monitoring alarm device also includes housing, central processing unit 120, power taking on the spot
Current transformer 110, collection current transformer 130, voltage sensor 140, communicator and alarm device are placed in housing.
Specifically, device inner body is placed in housing, can parts be played with certain protective effect, extension is used
Life-span.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. one kind circuit comprehensive monitoring alarm device on the spot, it is characterised in that including：Power taking current transformer, central processing unit,
Collection current transformer, voltage sensor and warning device, the collection current transformer, the voltage sensor and the report
Alarm device is all connected with the central processing unit and the power taking current transformer, and the central processing unit connects the power taking electric current
Transformer, the collection current transformer and the voltage sensor are also connected with circuit.
2. the comprehensive monitoring alarm device of circuit on the spot according to claim 1, it is characterised in that also including storage device,
The storage device connects the central processing unit and the power taking current transformer.
3. the comprehensive monitoring alarm device of circuit on the spot according to claim 1 and 2, it is characterised in that also filled including communication
Put, the communicator connects the power taking current transformer and the central processing unit.
4. the comprehensive monitoring alarm device of circuit on the spot according to claim 3, it is characterised in that the communicator includes
It is all connected with WIFI devices, blue-tooth device and the GPRS devices of the central processing unit and the power taking current transformer at least
It is a kind of.
5. the comprehensive monitoring alarm device of circuit on the spot according to claim 1 and 2, it is characterised in that the warning device
Sound and light alarm device including connecting the central processing unit and the power taking current transformer.
6. the comprehensive monitoring alarm device of circuit on the spot according to claim 1 and 2, it is characterised in that the warning device
SMS alarming device including connecting the central processing unit and the power taking current transformer.
7. the comprehensive monitoring alarm device of circuit on the spot according to claim 1, it is characterised in that the voltage sensor bag
Include the plates capacitance for connecting the central processing unit and the power taking current transformer.
8. the comprehensive monitoring alarm device of circuit on the spot according to claim 1 and 2, it is characterised in that also including being all connected with
The automatic crisis identifying device of the central processing unit and the power taking current transformer.
9. the comprehensive monitoring alarm device of circuit on the spot according to claim 8, it is characterised in that the automatic crisis identification
Device includes radar detedtor, and the radar detedtor connects the central processing unit and the power taking current transformer.
10. the comprehensive monitoring alarm device of circuit on the spot according to claim 1, it is characterised in that described also including housing
Central processing unit, the power taking current transformer, the collection current transformer, the voltage sensor and the warning device
It is placed in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621403563.6U CN206258546U (en) | 2016-12-20 | 2016-12-20 | Circuit comprehensive monitoring alarm device on the spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621403563.6U CN206258546U (en) | 2016-12-20 | 2016-12-20 | Circuit comprehensive monitoring alarm device on the spot |
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| Publication Number | Publication Date |
|---|---|
| CN206258546U true CN206258546U (en) | 2017-06-16 |
Family
ID=59030249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621403563.6U Active CN206258546U (en) | 2016-12-20 | 2016-12-20 | Circuit comprehensive monitoring alarm device on the spot |
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| CN (1) | CN206258546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485714A (en) * | 2020-11-30 | 2021-03-12 | 云南电网有限责任公司电力科学研究院 | High-sensitivity ground fault detection and identification method and device |
-
2016
- 2016-12-20 CN CN201621403563.6U patent/CN206258546U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485714A (en) * | 2020-11-30 | 2021-03-12 | 云南电网有限责任公司电力科学研究院 | High-sensitivity ground fault detection and identification method and device |
| CN112485714B (en) * | 2020-11-30 | 2022-08-19 | 云南电网有限责任公司电力科学研究院 | High-sensitivity ground fault detection and identification method and device |
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