CN207301213U - Electric network state monitoring device and system - Google Patents
Electric network state monitoring device and system Download PDFInfo
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- CN207301213U CN207301213U CN201721441203.XU CN201721441203U CN207301213U CN 207301213 U CN207301213 U CN 207301213U CN 201721441203 U CN201721441203 U CN 201721441203U CN 207301213 U CN207301213 U CN 207301213U
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- voltage
- network state
- electric network
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- current
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Abstract
The utility model provides a kind of electric network state monitoring device and system, is related to technical field of power systems, including：Prover, comparator, alarm, display, at least three voltage detectors and at least three current detectors；At least three voltage detectors, at least three current detectors are connected with power equipment；Prover is connected with power equipment, at least three voltage detectors and at least three current detectors respectively；Comparator is connected with alarm, display, voltage detector and current detector respectively; solve the power equipment in power grid often due to load is excessive or short-circuit grade and cause equipment damage; and the monitoring result inaccuracy of power equipment is also likely to cause the erroneous judgement to electric network state; unnecessary shut-down (breakdown) mainteance is led to a disaster or causes, so as to influence the technical problem of the normal operation of grid equipment.
Description
Technical field
Technical field of power systems is the utility model is related to, more particularly, to a kind of electric network state monitoring device and is
System.
Background technology
The power transformation of the various voltages entirety that electric line forms in one's power in electric system, referred to as power network, abbreviation power grid,
It includes three power transformation, transmission of electricity, distribution units.The task of power network is conveying and distribution electric energy, changes voltage.
Power equipment in electric system is very much, and at present, power equipment (power system) mainly includes setting with power generation
Standby and two major class of power supply unit, generating equipment is mainly station boiler, steam turbine, gas turbine, the hydraulic turbine, generator, change
Depressor etc., power supply unit are mainly transmission line of electricity, mutual inductor, contactor of various voltage class etc..
But the power equipment in power grid often due to load is excessive or short-circuit grade and cause equipment damage, it is and right
The monitoring result inaccuracy of power equipment is also likely to cause the erroneous judgement to electric network state, leads to a disaster or cause unnecessary stop
Work is overhauled, so as to influence the normal operation of grid equipment.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of electric network state monitoring device and system, to solve
Power equipment in power grid existing in the prior art often due to load is excessive or short-circuit grade and cause equipment damage, and
The monitoring result inaccuracy of power equipment is also likely to cause the erroneous judgement to electric network state, leads to a disaster or causes and is unnecessary
Shut-down (breakdown) mainteance, so as to influence the technical problem of the normal operation of grid equipment.
In a first aspect, the utility model embodiment provides a kind of electric network state monitoring device, including：Prover, compare
Device, alarm, display, at least three voltage detectors and at least three current detectors；
At least three voltage detectors, at least three current detectors are connected with power equipment；
The prover is examined with power equipment, at least three voltage detectors and at least three electric currents respectively
Survey device connection；
The comparator respectively with the alarm, the display, the voltage detector and the current detecting
Device connects；
The voltage and electric current of the voltage detector and current detector measurement power equipment；
The prover calibrates at least three voltage detectors and at least three current detectors,
Obtain accurate voltage values and accurate current value；
The comparator by preset voltage value compared with the accurate voltage values, and by pre-set current value and the standard
True current value is compared, and obtains comparing difference；
The alarm carries out alarm when the comparison difference is more than preset difference value；
The display is to the preset voltage value, the pre-set current value, accurate voltage values and described accurate
Current value is shown.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect, its
In, the prover according to the detected value to power equipment by output voltage signal and resistance signal, to described at least three
Voltage detector and at least three current detectors are calibrated.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect, its
In, the alarm includes：Controller and buzzer；
The controller controls the buzzer to open when the comparison difference is more than preset difference value.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect, its
In, further include：The computing device being connected with the voltage detector and the current detector；
The computing device calculates actual power value according to the accurate voltage values and the accurate current value.
With reference to first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect, its
In, the computing device is also connected with the comparator；
Predetermined power value compared with the actual power value, is obtained power difference by the comparator.
With reference to first aspect, the utility model embodiment provides the 5th kind of possible embodiment of first aspect, its
In, the alarm carries out alarm when the power difference is more than predetermined power difference.
With reference to first aspect, the utility model embodiment provides the 6th kind of possible embodiment of first aspect, its
In, further include：The holder being connected with the comparator；
The holder to preset voltage value, pre-set current value, the accurate voltage values and the accurate current value into
Row storage.
Second aspect, the utility model embodiment also provide a kind of electric network state monitoring system, including：Terminal and such as the
Electric network state monitoring device described in one side；
The terminal is connected with the electric network state monitoring device by narrow band communication and/or wireless communication.
With reference to second aspect, the utility model embodiment provides the first possible embodiment of second aspect, its
In, the terminal receives and shows the accurate voltage values of the electric network state monitoring device transmission and the accurate current
Value.
With reference to second aspect, the utility model embodiment provides second of possible embodiment of second aspect, its
In, comparator transmission preset voltage value and/or pre-set current value of the terminal into the electric network state monitoring device.
The technical solution that the utility model embodiment provides brings following beneficial effect：The utility model embodiment provides
Electric network state monitoring device and system in, electric network state monitoring device includes：At least three voltage detectors, at least three
Current detector, prover, comparator, alarm and display, wherein, at least three voltage detectors and at least three
Current detector is connected with power equipment, and prover respectively with power equipment, at least three voltage detectors and at least
Three current detector connections, comparator are connected with alarm, display, voltage detector and current detector respectively, voltage
The voltage and electric current of detector and current detector measurement power equipment, prover is at least three voltage detectors and at least
Three current detectors are calibrated, so as to obtain accurate voltage values and accurate current value, comparator is by preset voltage value with being somebody's turn to do
Accurate voltage values are compared, and by pre-set current value compared with the accurate current value, so as to obtain comparing difference, alarm
Device carries out alarm when relatively difference is more than preset difference value, display to preset voltage value, pre-set current value, accurate voltage values with
And accurate current value is shown, at least three voltage detectors and at least three current detectors are carried out by prover
Calibration, more accurate magnitude of voltage and current value are obtained with this, then by comparator to preset voltage value, the accurate voltage
The comparison that value, pre-set current value and the accurate current value carry out, finally by alarm and display according to compared with accurately
As a result with preset difference value, more accurately and reliably alarm and display are carried out, is made to the monitoring result of power equipment and to power grid shape
The judgement of state more accurately and reliably, realizes the raising of the reliability and protection of power network monitoring work, so as to solve existing
Power equipment present in technology in power grid often due to load is excessive or short-circuit grade and cause equipment damage, and to electricity
The monitoring result inaccuracy of power equipment is also likely to cause the erroneous judgement to electric network state, leads to a disaster or cause unnecessary shut-down
Maintenance, so as to influence the technical problem of the normal operation of grid equipment.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is realized and obtained in book, claims and attached drawing.
To enable the above-mentioned purpose of the utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Attached drawing appended by cooperation, is described in detail below.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, describe below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 shows a kind of structure diagram for electric network state monitoring device that the utility model embodiment is provided；
Fig. 2 shown in the electric network state monitoring device that the utility model embodiment is provided, the concrete structure of alarm
Schematic diagram；
Fig. 3 shows another structure diagram for the electric network state monitoring device that the utility model embodiment is provided；
Fig. 4 shows a kind of structure diagram for electric network state monitoring system that the utility model embodiment is provided.
Icon：1- electric network state monitoring devices；11- provers；12- comparators；13- alarms；14- displays；15- electricity
Press detector；16- current detectors；17- power equipments；131- controllers；132- buzzers；18- computing devices；19- is stored
Device；2- electric network states monitor system；21- terminals.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model part is real
Example is applied, instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making
All other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
At present the power equipment in power grid often due to load is excessive or short-circuit grade and cause equipment damage, and to electricity
The monitoring result inaccuracy of power equipment is also likely to cause the erroneous judgement to electric network state, leads to a disaster or cause unnecessary shut-down
Maintenance, so as to influence the normal operation of grid equipment, based on this, a kind of electric network state that the utility model embodiment provides monitors
Device and system, can solve the power equipment in power grid existing in the prior art often since load is excessive or short
Road etc. and cause equipment damage, and the monitoring result inaccuracy of power equipment is also likely to cause the erroneous judgement to electric network state,
Unnecessary shut-down (breakdown) mainteance is led to a disaster or causes, so as to influence the technical problem of the normal operation of grid equipment.
For ease of understanding the present embodiment, a kind of electric network state disclosed in the utility model embodiment is supervised first
Survey device and system describes in detail.
Embodiment one：
A kind of electric network state monitoring device that the utility model embodiment provides, as shown in Figure 1, electric network state monitoring device
1 can include：Prover 11, comparator 12, alarm 13, display 14, at least three voltage detectors 15 and at least three
A current detector 16.
Wherein, at least three voltage detectors 15, at least three current detectors 16 can be connected with power equipment 17.School
Quasi- instrument 11 can be connected with power equipment 17, at least three voltage detectors 15 and at least three current detectors 16 respectively.
Comparator 12 can be connected with alarm 13, display 14, voltage detector 15 and current detector 16 respectively.
Further, voltage detector 15 can measure the voltage and electric current of power equipment 17 with current detector 16.Calibration
Instrument 11 can calibrate at least three voltage detectors 15 and at least three current detectors 16, obtain accurate voltage values
With accurate current value.
Specifically, magnitude of voltage and at least three electric currents that prover 11 can measure at least three voltage detectors 15
The current value that detector 16 measures is calibrated, and obtains accurate voltage values and accurate current value.
As a preferred solution, prover 11 passes through output voltage signal and electricity according to the detected value to power equipment 17
Signal is hindered, at least three voltage detectors 15 and at least three current detectors 16 can be calibrated.
As the another embodiment of the present embodiment, prover 11 passes through to extremely according to the detected value to power equipment 17
Few three 15 and at least three current detectors 16 of voltage detector transmission voltage signal and resistance signal, so as to fulfill to extremely
Few three 15 and at least three current detectors 16 of voltage detector are calibrated.
Preferably, comparator 12 can by preset voltage value compared with accurate voltage values, and by pre-set current value with
Accurate current value is compared, and obtains comparing difference.Alarm 13 can carry out alarm when relatively difference is more than preset difference value.
In practical applications, the numerical value that can be measured in voltage detector 15 and current detector 16 is different from prover 11
When, prover 11 can transmit the numerical value that prover 11 measures and arrive each voltage detector 15 and current detector as instruction
16, to calibrate each voltage detector 15 and current detector 16.Therefore, using more than three voltage measurement detectors, three
Above current measurement detector and prover 11, can make measurement result more accurate, improve accuracy rate.
As the preferred embodiment of the present embodiment, as shown in Fig. 2, alarm 13 can include：Controller 131 and buzzing
Device 132.Controller 131 can control buzzer 132 to open when relatively difference is more than preset difference value.
As shown in figure 3, electric network state monitoring device 1 can also include：With voltage detector 15 and current detector 16
The computing device 18 of connection.Computing device 18 can calculate actual power value according to accurate voltage values and accurate current value.
In addition, computing device 18 can also be connected with comparator 12.Comparator 12 can be by predetermined power value and actual work(
Rate value is compared, and obtains power difference.Alarm 13 can carry out alarm when power difference is more than predetermined power difference.
For display 14, preset voltage value, pre-set current value, accurate voltage values and accurate current value can be carried out
Display.Display 14 can also show predetermined power value and actual power value.Set so that user directly reads electric power
Electric current, voltage, power in standby 17 etc., to know the time of day of power grid.
It should be noted that electric network state monitoring device 1 can also include：The holder 19 being connected with comparator 12.Storage
Storage 19 can store preset voltage value, pre-set current value, accurate voltage values and accurate current value.Holder 19 is also
Predetermined power value and actual power value can be stored.
As the preferred embodiment of the present embodiment, the wherein number of holder 19 can be at least two, to realize storage
Deposit the redundancy of equipment, you can when being wherein filled with a holder, to use another holder.
In the present embodiment, electric network state monitoring device 1 is installed at each total line and branched line that can be in power grid,
Realize the real-time measurement of virtual voltage, actual current, actual power, can also can be born by comparator 12 and every circuit
Maximum voltage, electric current, power etc. compare.
In practical applications, since the critical value of the power equipments such as every cable, electric appliance 17 is different, will can preset in advance
In the input comparators such as voltage, electric current, power 12, default numerical value is contrasted with actual value easy to comparator 12, is judged
Whether excess load or critical value etc. will be reached, and alarm 13 is carried out early warning according to estimate of situation.For example, in actual power
Numerical value more than more than 10 watts reaches 2 watt-hours, judges that accident can be caused, and carry out early warning.
Embodiment two：
A kind of electric network state monitoring system that the utility model embodiment provides, as shown in figure 4, electric network state monitors system
2 can include：The electric network state monitoring device that terminal 21 and above-described embodiment one provide, terminal 21 can be supervised with electric network state
Device 1 is surveyed to connect by narrow band communication and/or wireless communication.
It is further that electric network state monitoring device 1 can also include：Communication device, electric network state monitoring device 1 can be with
Communicated by communication device and terminal 21.
Therefore, terminal 21 can receive and show the accurate voltage values of the transmission of electric network state monitoring device 1 and accurate electricity
Flow valuve.Terminal 21 can transmit preset voltage value and/or pre-set current value to the comparator 12 in electric network state monitoring device 1.
Terminal 21 can also transmit preset difference value, predetermined power value and default work(to the comparator 12 in electric network state monitoring device 1
Rate is poor.
In all examples being illustrated and described herein, any occurrence should be construed as merely exemplary, without
It is that therefore, other examples of exemplary embodiment can have different values as limitation.
Block diagram in attached drawing shows the system frame in the cards of the system of multiple embodiments according to the present utility model
Structure, function and operation.At this point, each square frame in block diagram can represent a part for a module, and the one of the module
Part is used for realization the executable instruction of defined logic function comprising one or more.Replaced it should also be noted that being used as at some
In the realization changed, the function of being marked in square frame can also be with different from the order marked in attached drawing generation.For example, two companies
Continuous square frame can essentially perform substantially in parallel, they can also be performed in the opposite order sometimes, this is according to involved
Depending on function.It is also noted that the combination of the square frame in each square frame and block diagram in block diagram, can use and perform regulation
Function or the dedicated hardware based system of action realize, or the combination of specialized hardware and computer instruction can be used
To realize.
The electric network state monitoring system that the utility model embodiment provides, monitors with the electric network state that above-described embodiment provides
Device has identical technical characteristic, so can also solve identical technical problem, reaches identical technique effect.
The equipment such as comparator 12 and computing device 18 can also be processor, and processor is probably a kind of ic core
Piece, has the disposal ability of signal.During realization, above-mentioned function can pass through the integration logic electricity of the hardware in processor
The instruction on road is completed.Above-mentioned processor can be general processor, including central processing unit (Central Processing
Unit, abbreviation CPU), network processing unit (Network Processor, abbreviation NP) etc.；It can also be digital signal processor
(Digital Signal Processing, abbreviation DSP), application-specific integrated circuit (Application Specific
Integrated Circuit, abbreviation ASIC), ready-made programmable gate array (Field-Programmable Gate Array,
Abbreviation FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.Can be real
Now or perform the utility model embodiment in disclosed each function.Function with reference to disclosed in the utility model embodiment can
Completion is performed to be embodied directly in hardware decoding processor, or completion is performed with the hardware in decoding processor.
In addition, in the description of the utility model embodiment, unless otherwise clearly defined and limited, term " installation ",
" connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected
Connect；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the utility model.
, it is necessary to explanation in the description of the utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, can be with
Realize by another way.Device embodiment described above is only schematical, for example, the division of the unit,
Only a kind of division of logic function, can there is other dividing mode when actually realizing, in another example, multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be by some communication interfaces, device or unit it is indirect
Coupling or communication connection, can be electrical, machinery or other forms.
Finally it should be noted that：Embodiment described above, is only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the scope of protection of the utility model is not limited thereto, although with reference to foregoing
The utility model is described in detail in embodiment, it will be understood by those of ordinary skill in the art that：It is any to be familiar with this skill
For the technical staff in art field in the technical scope that the utility model discloses, it still can be to the skill described in previous embodiment
Art scheme is modified or can readily occur in change, or carries out equivalent substitution to which part technical characteristic；And these modifications,
Change is replaced, and the essence of appropriate technical solution is departed from the spirit and model of the utility model embodiment technical solution
Enclose, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model described should be wanted with right
Subject to the protection domain asked.
Claims (10)
- A kind of 1. electric network state monitoring device, it is characterised in that including：Prover, comparator, alarm, display, at least three A voltage detector and at least three current detectors；At least three voltage detectors, at least three current detectors are connected with power equipment；The prover respectively with power equipment, at least three voltage detectors and at least three current detectors Connection；The comparator connects with the alarm, the display, the voltage detector and the current detector respectively Connect；The voltage and electric current of the voltage detector and current detector measurement power equipment；The prover calibrates at least three voltage detectors and at least three current detectors, obtains Accurate voltage values and accurate current value；The comparator by preset voltage value compared with the accurate voltage values, and by pre-set current value and the accurate electricity Flow valuve is compared, and obtains comparing difference；The alarm carries out alarm when the comparison difference is more than preset difference value；The display is to the preset voltage value, the pre-set current value, the accurate voltage values and the accurate current Value is shown.
- 2. electric network state monitoring device according to claim 1, it is characterised in that the prover is according to power equipment Detected value by output voltage signal and resistance signal, at least three voltage detectors and at least three electricity Current sensor is calibrated.
- 3. electric network state monitoring device according to claim 1, it is characterised in that the alarm includes：Controller with Buzzer；The controller controls the buzzer to open when the comparison difference is more than preset difference value.
- 4. electric network state monitoring device according to claim 1, it is characterised in that further include：With the voltage detector And the computing device of the current detector connection；The computing device calculates actual power value according to the accurate voltage values and the accurate current value.
- 5. electric network state monitoring device according to claim 4, it is characterised in that the computing device also with the comparison Device connects；Predetermined power value compared with the actual power value, is obtained power difference by the comparator.
- 6. electric network state monitoring device according to claim 5, it is characterised in that the alarm is in the power difference Alarm is carried out when poor more than predetermined power.
- 7. electric network state monitoring device according to claim 1, it is characterised in that further include：It is connected with the comparator Holder；The holder stores up preset voltage value, pre-set current value, the accurate voltage values and the accurate current value Deposit.
- 8. a kind of electric network state monitors system, it is characterised in that including：Terminal and such as claim 1-7 any one of them Electric network state monitoring device；The terminal is connected with the electric network state monitoring device by narrow band communication and/or wireless communication.
- 9. electric network state according to claim 8 monitors system, it is characterised in that the terminal receives and shows the electricity The accurate voltage values of net state monitoring device transmission and the accurate current value.
- 10. electric network state according to claim 8 monitors system, it is characterised in that the terminal is to the electric network state Comparator transmission preset voltage value and/or pre-set current value in monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721441203.XU CN207301213U (en) | 2017-11-01 | 2017-11-01 | Electric network state monitoring device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721441203.XU CN207301213U (en) | 2017-11-01 | 2017-11-01 | Electric network state monitoring device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207301213U true CN207301213U (en) | 2018-05-01 |
Family
ID=62275012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721441203.XU Active CN207301213U (en) | 2017-11-01 | 2017-11-01 | Electric network state monitoring device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207301213U (en) |
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2017
- 2017-11-01 CN CN201721441203.XU patent/CN207301213U/en active Active
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