CN205811661U - A kind of monitoring system for power distribution networks - Google Patents
A kind of monitoring system for power distribution networks Download PDFInfo
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- CN205811661U CN205811661U CN201620507878.9U CN201620507878U CN205811661U CN 205811661 U CN205811661 U CN 205811661U CN 201620507878 U CN201620507878 U CN 201620507878U CN 205811661 U CN205811661 U CN 205811661U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 7
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
This utility model relates to field of distribution network, is specifically related to a kind of monitoring system for power distribution networks, including: transformer, including: being placed on the first coil in same iron core column, the second coil and tertiary coil, wherein, the two ends of described first coil are connected in supply line；Current measuring instrument, with the second coils connected in series, is used for detecting the faradic current produced on described second coil；Pressure measuring instrument, connects with described tertiary coil, for detecting the induced voltage produced on described tertiary coil；Monitor terminal, the supply load of described supply line is monitored by the induced voltage detected for the faradic current detected according to described current measuring instrument and described pressure measuring instrument.Pass through this utility model, it is possible to be accurately detected in supply line the overcurrent and overvoltage occurred.
Description
Technical field
This utility model relates to field of distribution network, is specifically related to a kind of monitoring system for power distribution networks.
Background technology
Along with socioeconomic development, the effect of electric power highlights the most day by day, and all trades and professions are for electric power
Demand constantly increase so that power department more payes attention to the planning to electrical network and transformation, with satisfied day
The electricity needs that benefit increases, it is ensured that the safe operation of power distribution network.The current power distribution network energy uses process
In there is the problem that energy consumption is too high, therefore, the electric load of power distribution network is energy-conservation, monitoring problem has become
The problem solved for intelligent power network development need, it is therefore desirable to the load of power distribution network is carried out in real time
Monitoring, improves the safety of power distribution network simultaneously.
Existing monitoring system is typically with the energy consumption of load for monitoring object, and main monitoring is supported on and makes
The energy consumed during with, such as patent documentation one electric energy monitoring system (CN101771275A)
Disclosure of that, this electric energy monitoring system specifically includes: electric energy meter, harvester, the network equipment,
Server, wherein, electric energy meter is for detecting the energy data of each metering points of electric energy；Harvester and electric energy
Table connects, for gathering the energy data of each electric energy meter；The network equipment is connected with harvester, will gather
The energy data of device collection is transferred to server；Server is used for receiving energy data, and to electric energy number
According to calculating and processing.Mainly by the electric energy usage amount data of electric energy meter collection are led in the document
Cross harvester and the network equipment is transferred on server such that it is able to collection real-time, automatic, analysis electricity
Situation about use.But, only realizing the monitoring to power distribution network from energy consumption can not be the trueest
It is the safety of reflection power distribution network, such as overcurrent or overvoltage often occur in certain supply line
Situation, and this point cannot be obtained by detections such as electric energy meters.
Utility model content
Therefore, during the technical problems to be solved in the utility model is prior art, monitoring system cannot be examined
Survey the overcurrent or the situation of overvoltage occurred in supply line, thus a kind of distribution network monitoring system is provided
System.
This utility model provides a kind of monitoring system for power distribution networks, including: transformer, including: it is placed on
First coil, the second coil and tertiary coil in same iron core column, wherein, described first coil
Two ends are connected in supply line；Current measuring instrument, with the second coils connected in series, is used for detecting described
The faradic current produced on two coil；Pressure measuring instrument, connects with described tertiary coil, is used for detecting
The induced voltage produced on described tertiary coil；Monitor terminal, for examining according to described current measuring instrument
The induced voltage that the faradic current measured and described pressure measuring instrument the detect confession to described supply line
Electric load is monitored.
Further, described monitor terminal includes: current comparator, for by described current measuring instrument
The faradic current detected compares with pre-set current value；Voltage comparator, for by described voltage
The induced voltage that measuring instrument detects compares with preset voltage value.
Further, described monitor terminal also includes: processor, with described current comparator and described
Voltage comparator is respectively connected with, for according to described current comparator and the ratio of described voltage comparator
Relatively result determines the supply load of described supply line.
Further, described monitor terminal also includes: alarm unit, at described voltage comparator
Determine that the induced voltage that described pressure measuring instrument detects is higher than described preset voltage value or described electricity
Stream comparator determines that the faradic current that described current measuring instrument detects is higher than described pre-set current value
In the case of, export alarm.
Further, described processor is single-chip microcomputer.
Further, described transformer is multiple, and multiple described transformers are respectively used to detect a plurality of confession
Electric current in electric line and voltage parameter.
Further, also include: current limiter, be arranged in described supply line, with described monitoring eventually
End is connected, and presets electricity for determining that the electric current in described supply line exceedes when described monitor terminal
During flow valuve, limit the electric current in described supply line.
Further, also include: earth leakage protective device, be arranged in described supply line, for institute
State supply line and earth leakage protective is provided.
Further, described monitor terminal also includes: wireless transport module, is used for uploading monitoring data.
Further, also include: Cloud Server, for receiving the described prison that described monitor terminal is uploaded
Control data, and described monitoring data are stored.
According to this utility model, included that by employing the transformer of three groups of coils detects in supply line
Electric current and voltage, in order to the electric current in supply line and voltage are monitored by monitor terminal, energy
Enough it is accurately detected in supply line the overcurrent and overvoltage occurred, it addition, relative to using one
Individual current transformer gathers electric current and voltage transformer to for gathering voltage, substantially reduces
The space hold of transformer, it is to avoid the normal use of impact power supply.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical side of the prior art
Case, will make simply the accompanying drawing used required in detailed description of the invention or description of the prior art below
Introduce, it should be apparent that, the accompanying drawing in describing below is embodiments more of the present utility model, right
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
These accompanying drawings obtain other accompanying drawing.
Fig. 1 is the principle frame of a concrete example of energy source monitoring system in this utility model embodiment
Figure；
Fig. 2 is the principle of another concrete example of energy source monitoring system in this utility model embodiment
Block diagram.
Reference: 10-transformer, 20-current detecting instrument, 30-Voltage detector, 40-monitors eventually
End, 50-supply line, 60-current limiter, 70-earth leakage protective device, 80-Cloud Server, 90-main frame,
401-current comparator, 402-voltage comparator, 403-processor, 404-alarm unit, 405-
Wireless transport module.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, aobvious
So, described embodiment is a part of embodiment of this utility model rather than whole embodiments.
Based on the embodiment in this utility model, those of ordinary skill in the art are not making creative work
The every other embodiment obtained under premise, broadly falls into the scope of this utility model protection.
In description of the present utility model, it should be noted that term " " center ", " on ", D score,
Orientation or the position relationship of the instruction such as "left", "right", " vertically ", " level ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplification is retouched
State rather than indicate or imply that the device of indication or element must have specific orientation, with specifically
Azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or imply relatively heavy
The property wanted.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited,
Term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it may be fixing even
Connect, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electricity
Connect；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, it is also possible to be two units
Connection within part, can be wireless connections, it is also possible to be wired connection.Common for this area
For technical staff, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
Additionally, technical characteristic involved in this utility model difference embodiment disclosed below is only
The conflict of not constituting each other just can be combined with each other.
The present embodiment provides a kind of monitoring system for power distribution networks, and this system may be used for monitoring power distribution network, such as figure
Shown in 1, this system includes: transformer 10, current measuring instrument 20, pressure measuring instrument 30 and monitoring are eventually
End 40.
Transformer 10 includes: be placed on the first coil in same iron core column, the second coil and tertiary coil
(not shown), wherein, the two ends of first coil are connected in supply line 50.The present embodiment
The three circle winding mutual inductance devices that are made up of first coil, the second coil, tertiary coil of transformer 10.
Wherein, first coil is primary coil, and the second coil, tertiary coil are secondary coil, when being connected to
When first coil in supply line 50 exists current/voltage, produce in the second coil and tertiary coil
Raw faradic current or induced voltage.
Current measuring instrument 20 and the second coils connected in series, the faradic current produced on detection the second coil.
Pressure measuring instrument 30 is connected with tertiary coil, for detecting the induced voltage produced on tertiary coil.
Monitor terminal 40 is respectively connected with, for basis with current measuring instrument 20 and pressure measuring instrument 30
Faradic current that current measuring instrument 20 detects and the induced voltage that pressure measuring instrument 30 detects are to confession
The supply load of electric line 50 is monitored.
In the present embodiment, include that the transformer of three groups of coils detects the electricity in supply line by employing
Stream and voltage, in order to the electric current in supply line and voltage are monitored by monitor terminal, it is possible to accurate
The overcurrent and overvoltage occurred in supply line really detected, it addition, relative to using an electricity
Current transformer gathers electric current and voltage transformer to for gathering voltage, substantially reduces mutual inductance
The space hold of device, it is to avoid the normal use of impact power supply.
Preferably, as in figure 2 it is shown, monitor terminal 40 includes: current comparator 401 and voltage ratio are relatively
Device 402, current comparator 401 is for the faradic current detected by current measuring instrument 20 and default electricity
Flow valuve compares；Voltage comparator 402, for the induced voltage detected by pressure measuring instrument 30
Compare with preset voltage value.
In the present embodiment, after faradic current and induced voltage being detected, by current comparator 401
This faradic current is compared with pre-set current value, determines whether overcurrent occurs in supply line
Etc. abnormal conditions, by voltage comparator 402, induced voltage and preset voltage value are compared, really
Make and whether the abnormal conditions such as overvoltage occur in supply line.
Preferably, as in figure 2 it is shown, monitor terminal also includes: processor 403, with current comparator
401 and voltage comparator 402 be respectively connected with, for according to current comparator and the ratio of voltage comparator
Relatively result determines the supply load of supply line 50.It is further preferred that processor is single-chip microcomputer.
Its comparing result is sent to processor by current comparator 401 and voltage comparator 402 respectively
403, processor 403 judge the supply load in supply line 50, and determine to use follow-up guarantor
Protect strategy or mediation practices.
Alternatively, as in figure 2 it is shown, monitor terminal also includes: alarm unit 404, with processor 403
It is connected, for determining that the induced voltage that pressure measuring instrument 30 detects is high at voltage comparator 402
The faradic current that current measuring instrument 20 detects is determined in preset voltage value or current comparator 401
In the case of pre-set current value, export alarm.
In the present embodiment, processor 403 is after compared result carries out Treatment Analysis, if it is determined that go out
After there is abnormal supply line, then control alarm unit 404 and export alarm, in order to remind
Staff exists for the supply line of electrical anomaly.It is further preferred that alarm device is sound and light alarm
Device.
Preferably, transformer is multiple, and multiple transformers are respectively used to detect in a plurality of supply line
Electric current and voltage parameter.
Alternatively, as in figure 2 it is shown, system also includes: current limiter 60, it is arranged in supply line 50,
It is connected with monitor terminal 40, for determining that the electric current in supply line 50 surpasses when monitor terminal 40
When crossing pre-set current value, limit the electric current in supply line 50.
Owing to overcurrent easily causes the accident that supply line 50 is on fire, in the present embodiment, at supply lines
Current limiter is set on road, so, when monitor terminal judges that overcurrent occurs in supply line, permissible
By current limiter, the electric current in supply line is limited, it is to avoid unnecessary accident occurs.
Preferably, as in figure 2 it is shown, system also includes: earth leakage protective device 70, it is arranged on supply line
On 50, for providing earth leakage protective to supply line.
As one preferred embodiment, the system of the present embodiment also includes: Cloud Server 80, uses
In receiving the monitoring data that monitor terminal 40 is uploaded, and monitoring data are stored.
It should be noted that supervision packet here includes but is not limited to faradic current and induced voltage,
Other the parameter such as numbering that can also include such as supply line, Cloud Server 80 receives monitor terminal
After the monitoring data that 40 upload, stored, then can be utilized the big data of Cloud Server
The use of these monitoring data payloads is analyzed by disposal ability, it is achieved the data monitoring on cloud backstage.
Preferably, main frame 90 matching used with Cloud Server 80 can also be increased on backstage, in order to
Background work personnel operate data.
Preferably, monitor terminal 40 also includes: wireless transport module 405, for Cloud Server 80
Upload monitoring data.This wireless transport module 405 can be WIFI module, ZigBee module, bluetooth
Module, 2G, 3G, 4G mixed-media network modules mixed-media any one.
According to the present embodiment, utilize the power load that three winding transformer detects, and data are transmitted
To processor, compared with the numerical threshold preset by voltage comparator, current comparator,
Not in preset range, then reminded by alarm, current limliting can be carried out by current limiter simultaneously, prevent
Electric current is excessive causes the damage to electrical equipment, if electric current is excessive, also can lead within the time set
Cross earth leakage protective device to cut off the electricity supply, protect electrical equipment, prevent danger.
Obviously, above-described embodiment is only for clearly demonstrating example, and not to embodiment party
The restriction of formula.For those of ordinary skill in the field, the most also may be used
To make other changes in different forms.Here without also all of embodiment being given
With exhaustive.And the obvious change thus extended out or variation are created still in this utility model
Protection domain among.
Claims (10)
1. a monitoring system for power distribution networks, it is characterised in that including:
Transformer, including: it is placed on the first coil in same iron core column, the second coil and tertiary coil,
Wherein, the two ends of described first coil are connected in supply line；
Current measuring instrument, with the second coils connected in series, is used for detecting the sensing produced on described second coil
Electric current；
Pressure measuring instrument, connects with described tertiary coil, for detecting generation on described tertiary coil
Induced voltage；
Monitor terminal, surveys for the faradic current detected according to described current measuring instrument and described voltage
The supply load of described supply line is monitored by the induced voltage that amount instrument detects.
System the most according to claim 1, it is characterised in that described monitor terminal includes:
Current comparator, for the faradic current detected by described current measuring instrument and pre-set current value
Compare；
Voltage comparator, for the induced voltage detected by described pressure measuring instrument and preset voltage value
Compare.
System the most according to claim 2, it is characterised in that described monitor terminal also includes:
Processor, is respectively connected with, for basis with described current comparator and described voltage comparator
The comparative result of described current comparator and described voltage comparator determines that the power supply of described supply line is born
Lotus.
System the most according to claim 2, it is characterised in that described monitor terminal also includes:
Alarm unit, for determining, at described voltage comparator, the sense that described pressure measuring instrument detects
Answer voltage to be higher than described preset voltage value or described current comparator determines that described current measuring instrument is examined
The faradic current measured, higher than in the case of described pre-set current value, exports alarm.
System the most according to claim 3, it is characterised in that described processor is single-chip microcomputer.
System the most according to claim 1, it is characterised in that described transformer is multiple, many
Individual described transformer is respectively used to detect the electric current in a plurality of supply line and voltage parameter.
System the most according to claim 1, it is characterised in that also include:
Current limiter, is arranged in described supply line, is connected with described monitor terminal, for working as institute
State monitor terminal to determine when the electric current in described supply line exceedes pre-set current value, limit described confession
Electric current in electric line.
System the most according to claim 1, it is characterised in that also include:
Earth leakage protective device, is arranged in described supply line, for providing electric leakage to described supply line
Protection.
9. according to the system according to any one of claim 1-8, it is characterised in that described monitoring is eventually
End also includes:
Wireless transport module, is used for uploading monitoring data.
System the most according to claim 9, it is characterised in that also include:
Cloud Server, for receiving the described monitoring data that described monitor terminal is uploaded, and to described prison
Control data store.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620507878.9U CN205811661U (en) | 2016-05-30 | 2016-05-30 | A kind of monitoring system for power distribution networks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620507878.9U CN205811661U (en) | 2016-05-30 | 2016-05-30 | A kind of monitoring system for power distribution networks |
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| CN205811661U true CN205811661U (en) | 2016-12-14 |
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| CN201620507878.9U Active CN205811661U (en) | 2016-05-30 | 2016-05-30 | A kind of monitoring system for power distribution networks |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333972A (en) * | 2018-02-28 | 2018-07-27 | 山东科普电源系统有限公司 | Power distribution cabinet intelligent monitor system and power distribution cabinet |
| CN109471380A (en) * | 2018-04-10 | 2019-03-15 | 国网浙江省电力有限公司嘉兴供电公司 | A kind of electric user's power distribution room real-time monitoring system of guarantor |
| CN112445167A (en) * | 2020-11-19 | 2021-03-05 | 广州思泰信息技术有限公司 | Open wisdom energy gateway operating system of interface |
-
2016
- 2016-05-30 CN CN201620507878.9U patent/CN205811661U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333972A (en) * | 2018-02-28 | 2018-07-27 | 山东科普电源系统有限公司 | Power distribution cabinet intelligent monitor system and power distribution cabinet |
| CN109471380A (en) * | 2018-04-10 | 2019-03-15 | 国网浙江省电力有限公司嘉兴供电公司 | A kind of electric user's power distribution room real-time monitoring system of guarantor |
| CN109471380B (en) * | 2018-04-10 | 2022-03-25 | 国网浙江省电力有限公司嘉兴供电公司 | Real-time monitoring system for power distribution room of power protection user |
| CN112445167A (en) * | 2020-11-19 | 2021-03-05 | 广州思泰信息技术有限公司 | Open wisdom energy gateway operating system of interface |
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